/*
Copyright (C) 2015-2018 Night Dive Studios, LLC.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see .
*/
/*
* FrTerr.c
*
* $Source: r:/prj/cit/src/RCS/frterr.c $
* $Revision: 1.27 $
* $Author: jaemz $
* $Date: 1994/09/06 05:03:37 $
*
* Citadel Renderer
* terrain parsing, internal and external faces, facelet
* physics interaction?
*/
#include
#include
#include "map.h"
#include "mapflags.h"
#include "frintern.h"
#include "frtables.h"
#include "tilename.h"
#include "frparams.h"
#include "frflags.h"
#include "frquad.h"
#include "frsubclp.h"
#include "rendtool.h"
#include "textmaps.h" // pain, sadness
#define FLIP_BITS
// for the game system to grab and deparse for distance and all
int _game_fr_tmap;
// these should go somewhere else...
#define MAX_HGT HGT_STEPS
#define FDT_TMPPTCNT 8
#define T_LEFT 0
#define T_RIGHT 1
// really need oct_low and oct_high mirrors for fhgt_list so we can +/- 33 as oct_parm
// globals
int _fdt_dist; // distance in hv squares to us
fix _fr_fhgt_step; // single hgt step
fix _fr_fhgt_list[MAX_HGT + 1]; // all hgt steps fix mapping
sfix _fr_sfuv_list[(2 * MAX_HGT) + 1]; // all hgt steps uv mapping
fix slope_norm[MAX_HGT][3]; // table for sloped floors
// these example values are for a 32wide map, they get set in frpipe when map is resized
int wall_adds[] = {DEF_MAP_SZ, 1, -DEF_MAP_SZ, -1}; // how to get from one tile to next ptr math
int csp_trans_add[] = {0, DEF_MAP_SZ, DEF_MAP_SZ + 1, 1}; // alternate mapping of same deltas
int _fdt_x, _fdt_y, _fdt_mask; // implicit parameters to draw tile
MapElem *_fdt_mptr; // more implicit parameters
// texture mapping function pointers.
void (*_fr_lit_floor_func)(int, g3s_phandle *, grs_bitmap *);
void (*_fr_floor_func)(int, g3s_phandle *, grs_bitmap *);
void (*_fr_lit_wall_func)(int, g3s_phandle *, grs_bitmap *);
void (*_fr_wall_func)(int, g3s_phandle *, grs_bitmap *);
void (*_fr_lit_per_func)(int, g3s_phandle *, grs_bitmap *);
void (*_fr_per_func)(int, g3s_phandle *, grs_bitmap *);
#if _fr_defdbg(CURSOR)
int _fr_cursorx, _fr_cursory;
#endif
#if _fr_defdbg(ALTCAM)
int _fr_altcamx, _fr_altcamy;
#endif
// various nested locals, read static globals in C
static uchar _fdt_tt; // local storage of our current tile's tiletype
static TilesToWalls _fdt_ttw; // secret tiles to walls code
static TilesToFloors *_fdt_ttf; // pointer to current floor spew
static uchar _fdt_hgts[5]; // parm, flr, ceil, fprm, cprm
static fix _fdt_fix_parm; // fix rep for parameter
static fix _fdt_cur_parm; // dont pass around, as it is constant per tile
static char _fdt_icnt; // internal walls count - can be made a local again, i think
static uchar *_fdt_fo; // current tile's fo data
static fix _fdt_hgt_val; // last point hgt world coordinate
static uchar _fdt_whichpt; // fhgt_list_entry 0-MAX_HGT for last point looked up height w/parm adjust
static uchar _fdt_hgt_pt; // actual fdt_hgts value for this whichpt, since we use it 4-8 times for lit pts
g3s_phandle _fdt_tmppts[8]; // these are used for all temporary point sets
static int _fdt_wallid; // current external wall id
static g3s_phandle *_fdt_lcore; // left core for external walls
static g3s_phandle *_fdt_rcore; // right core for external walls
static int _fdt_rbase; // value of pbase at right of external walls, we use pbase itself for left
static int _fdt_me_flags; // hold store the current map flags
static int _fdt_wmap; // current tmap family to use
static sfix _fdt_slock; // sfix value for vlock in square
int _fdt_pbase; // where pbase is, for corner for idx lookup - sadly global for object lighting
static uchar last_csp_fr = 0; // last frame annoyance
static uchar _fdt_flip; // tile flippitude of cur tile
static bool _fdt_terr; // are we doing terrain or physics
// indirections for low level render functions
static void (*_fr_terr_int_wall)(int wall_id);
static void (*_fr_terr_ext_wall)(fix pt_list[4][2]);
static void (*_fr_terr_flr)(void);
static void (*_fr_terr_ceil)(void);
// how to render a composite inner wall
static void (*_fr_render_walls)(int which, int cnt);
// how to deal w/the object chain at a square
static void (*_fr_parse_obj)(void);
// in rendtool.c
#define TIM_WERE_AWAKE
#ifdef TIM_WERE_AWAKE
#define IsTpropNotStars() (textprops[_game_fr_tmap].force_dir == 0)
#else
#define IsTpropNotStars() (_game_fr_tmap >= 4)
#endif
#define quik_draw_tmap_p(ptcnt) ((IsTpropNotStars()) || (draw_tmap_p(ptcnt)))
//#define quik_draw_tmap_p(ptcnt) (TRUE)
// lookups into arrays
#define FDT_LK_FLR 0
#define FDT_LK_CEIL 1
// points in hgt structures
#define FDT_PT_PARM 0
#define FDT_PT_FLR 1
#define FDT_PT_CEIL 2
#define FDT_PT_FPRM 3
#define FDT_PT_CPRM 4
int _fr_terr_prim = 1;
// Internal prototypes (for Mac version)
void _fr_figure_pt(g3s_phandle tmp, int pt_code);
fix get_light(fix dist_to);
int _fr_do_light_val(int which, fix dist_val);
int _obj_do_light(int which, fix dist);
void _fr_do_cspace(g3s_phandle wrk, int which);
void _fr_draw_wire_cpoly_4(void);
void _fr_draw_wire_cpoly_3or4(int cnt);
void flip_setup(int wall_code);
int fr_get_ext_gap(fix *face_l, uchar in_fo, uchar *hgts, uchar *mmptr);
int _fr_get_anti_gap(fix *face_l, uchar in_fo, uchar *hgts, uchar *mmptr);
void _render_3d_walls(int which, int cnt);
int merge_walls(fix *dst_wall, fix *i_wall, int i_cnt, fix *o_wall, int o_cnt);
void parse_clip_tile();
void fr_terr_cspace_pick(uchar do_wall);
int _fr_tfunc_flr_normal(fix *vec, int *lflg, int fnorm_entry);
int _fr_tfunc_ceil_normal(fix *vec, int *lflg, int fnorm_entry);
int do_fc_trans(fix *xy, fix *sc, fix *vals);
void do_floor_element(int nrm_mask);
void do_ceil_element(int nrm_mask);
void fr_tfunc_grab_start(void);
void fr_tfunc_grab_fast(int mask);
///// AAHRRHRHGGHGHG switch to secondary data cache!!!
// probably should have 3 of these, one for cspace, one for unlit, one for lantern, so on, swap in pointers,
// and for asm have a table of calls to this which we switch if necessary at start of frame
// oh oh oh baby oh baby oh self modify height delta step baby now baby please
// really, this wants to become the threaded nightmare assembler point coder from hell
// and to use the 4 respts per map pt idea so we can reuse too
// 3 tests,
// either succeed jump out and reuse
// or fail all 3 (no jumps taken) and optimally build new one
// deal with optimality of data structures when rewriting in asm
// SPEED
// the phone is ringing its 4 am
// if it's your friends then i dont want to hear from them
// please leave a number and a message at the tone
// or you can just go on and leave me alone
// and i... dont want to know if you are lonely
// hmm.. have to deal with halve points and such
void _fr_figure_pt(g3s_phandle tmp, int pt_code) {
g3s_phandle *core;
pt_mods *ptm;
ptm = &pt_deref[pt_code & FRPTSPTOFF];
switch (_fdt_pbase = ptm->base) { // bad bad bad - hmmm... arrays?
case 0:
core = _fr_ptbase;
break;
case 1:
core = _fr_ptnext;
break;
case 2:
core = _fr_ptnext + 1;
break;
case 3:
core = _fr_ptbase + 1;
break;
//#ifndef SHIP
// default: Warning(("_fr_terr_poly_wall: bad point base code %x gives %d\n",pt_code,ptm->base)); break;
//#endif
}
core += _fdt_x;
_fdt_whichpt = ((pt_code & FRPTSZMASK) >> FRPTSZSHF);
_fdt_hgt_pt = _fdt_hgts[_fdt_whichpt + 1];
_fdt_hgt_val = _fr_fhgt_list[_fdt_hgt_pt];
g3_replace_add_delta_y(*core, tmp, -_fdt_hgt_val);
switch (ptm->modcnt) { // 1 function table
case FRMODYAXIS:
g3_add_delta_z(tmp, ptm->arg);
break;
case FRMODXAXIS:
g3_add_delta_x(tmp, ptm->arg);
break;
case FRMODNONE:
break;
}
}
fix get_light(fix dist_to) // , fix dot_prod)
{
// if (fr_normal_lights)
// dist_to+=fix_mul(dist_to>>fr_normal_shf,fix_make(1,0)-dot_prod); // 1/(1< fix_make((int)_frp.lighting.rad[1], 0))
return fix_make((int)_frp.lighting.base[1], 0);
return fix_mul(dist_to, _frp.lighting.slope) + _frp.lighting.yint;
}
#define get_light_t(targ, dist_to) \
if (dist_to < fix_make((int)_frp.lighting.rad[0], 0)) \
targ = ((int)_frp.lighting.base[0]) << 8; \
else if (dist_to > fix_make((int)_frp.lighting.rad[1], 0)) \
targ = ((int)_frp.lighting.base[1]) << 8; \
else \
targ = (fix_mul(dist_to, _frp.lighting.slope) + _frp.lighting.yint) >> 8
#ifndef NEW_WAY
#define set_terr_light(our_mp, which) \
if (which == FRPTSZCEIL_DN) \
i = (int)me_light_ceil(our_mp) - (int)me_templight_ceil(our_mp); \
else \
i = (int)me_light_flr(our_mp) - (int)me_templight_flr(our_mp); \
if (i < 0) \
i = 0
#else
#define set_terr_light(our_mp, which) \
{ \
int j; \
if (which == FRPTSZCEIL_DN) { \
i = (int)me_light_ceil(our_mp); \
j = (int)me_templight_ceil(our_mp); \
} else { \
i = (int)me_light_flr(our_mp); \
j = (int)me_templight_flr(our_mp); \
} \
i = min(i, j); \
}
#endif
// should redo these to setup sfix with punch in not shift
// for now hack with which to get stuff running
// later we want an interpolator
// rewrite this in assembler
int _fr_do_light_val(int which, fix dist_val) {
MapElem *our_mp = _fdt_mptr;
int i;
our_mp += csp_trans_add[_fdt_pbase];
set_terr_light(our_mp, which);
i <<= 8;
// speed this up, add fast dist check to trivial reject it.. ick, is this correct
// secret sacred secret sacred secret gnosis... neat, eh?
if ((_fr_curflags & FR_HACKCAM_MASK) == 0) {
if (_frp_light_bits_cam())
if ((dist_val >> 16) <= _frp.lighting.rad[1] + 1) {
fix light_res;
get_light_t(light_res, dist_val);
if (light_res < i)
i -= light_res;
else
i = 0;
}
}
if (_frp.lighting.global_mod) {
i -= _frp.lighting.global_mod;
if (i < 0)
i = 0;
else if (i > (15 << 8))
i = (15 << 8);
}
if (me_bits_rend3_x(our_mp)) {
i = 0;
// i-=(6<<8); // ah-yep....
// if (i<0) i=0;
}
// printf("Lighting! %x\n", i);
return i;
// if (_frp_light_bits_norm())
// wrk->i=i;
// *((uchar *)&wrk->i)=i;
// return wrk->i;
}
int _fr_do_light(g3s_phandle wrk, int which) {
// fix dval=abs(wrk->x)+abs(wrk->y)+abs(wrk->z));
// fix dval=fix_fast_pyth_dist(fix_fast_pyth_dist(wrk->x,wrk->y),wrk->z);
// really, we want the original, not transformed, points
// how bout this mess, eh?
static int x_mod[] = {0, 0, 1, 1}, y_mod[] = {0, 1, 1, 0};
int _lgt_x, _lgt_y;
fix dval;
_lgt_x = _fdt_x + x_mod[_fdt_pbase];
_lgt_y = _fdt_y + y_mod[_fdt_pbase];
dval =
fix_fast_pyth_dist(fix_fast_pyth_dist((_lgt_x << 16) - fr_camera_last[0], (_lgt_y << 16) - fr_camera_last[1]),
fr_camera_last[2] - _fdt_hgt_val);
wrk->i = _fr_do_light_val(which, dval);
return wrk->i;
}
int _obj_do_light(int which, fix dist) { return _fr_do_light_val(which, dist); }
void _fr_do_cspace(g3s_phandle wrk, int which) {
int col, dst, ncval;
MapElem *our_mp = _fdt_mptr + csp_trans_add[_fdt_pbase];
if (which == FRPTSZCEIL_DN)
col = me_cybcolor_ceil(our_mp);
else
col = me_cybcolor_flr(our_mp);
// light table based on radius here, somehow....
dst = _fdt_dist - 6; // dimming code. i guess
if (dst < 0)
dst = 0;
else if (dst > 10)
dst = 10;
dst <<= 8;
ncval = *((_fr_clut_list[0]) + dst + col);
wrk->rgb = grd_bpal[ncval]; // col
wrk->p3_flags |= PF_RGB;
}
#define dlC FRPTSZCEIL_DN
#define dlF FRPTSZFLR_DN
#define _fr_pt_light(phnd) _fr_do_light(phnd, _fdt_whichpt &FRPTSZPICK_DN)
#define _fr_pt_cspace(phnd) _fr_do_cspace((phnd), _fdt_whichpt &FRPTSZPICK_DN)
void _fr_draw_wire_cpoly_4(void) {
g3_draw_cline(_fdt_tmppts[0], _fdt_tmppts[1]);
g3_draw_cline(_fdt_tmppts[1], _fdt_tmppts[2]);
g3_draw_cline(_fdt_tmppts[2], _fdt_tmppts[3]);
g3_draw_cline(_fdt_tmppts[3], _fdt_tmppts[0]);
}
void _fr_draw_wire_cpoly_3or4(int cnt) {
g3_draw_cline(_fdt_tmppts[0], _fdt_tmppts[1]);
g3_draw_cline(_fdt_tmppts[1], _fdt_tmppts[2]);
if (cnt == 3)
g3_draw_cline(_fdt_tmppts[2], _fdt_tmppts[0]);
else {
g3_draw_cline(_fdt_tmppts[2], _fdt_tmppts[3]);
g3_draw_cline(_fdt_tmppts[3], _fdt_tmppts[0]);
}
}
void flip_setup(int wall_code) {
int lflags = _fdt_me_flags;
if (lflags & MAP_FLIP_FNCY_MASK) {
lflags &= ~MAP_FLIP_FNCY_MASK; /* clear fancy bit */
lflags += (((_fdt_x + _fdt_y + wall_code) & 1) << MAP_FLIP_PRTY_SHF); /* add in current parity */
lflags &= ~MAP_FLIP_FNCY_MASK; /* mod 1 within the bit field */
}
_fdt_flip = ((lflags & MAP_FLIP_MASK) >> MAP_FLIP_SHF);
#ifdef FLIP_SPEW
if (_fdt_me_flags & MAP_FLIP_MASK)
mprintf("Flip now set to %x from %x,%x at %x %x t %x\n", _fdt_flip, lflags, _fdt_me_flags, _fdt_x, _fdt_y,
wall_code);
else if (_fdt_flip)
mprintf("Hey, flip set, huh? %x %x %x\n", _fdt_x, _fdt_y, wall_code);
#endif
}
#ifdef FLIP_BITS
#define WALL_L_SET(pt) pt->uv.u = (_fdt_flip) << 8
#define WALL_R_SET(pt) pt->uv.u = ((1 + _fdt_flip) & 1) << 8
#else
#define WALL_L_SET(pt) pt->uv.u = 0 << 8
#define WALL_R_SET(pt) pt->uv.u = 1 << 8
#endif
// uv for a wall
/// ARRRGH, sfix points suck.. make this a look up through _fdt_hgts+vhold?
#define wall_uv_l(tmp) \
tmp->uv.v = _fr_sfuv_list[_fdt_hgt_pt] + _fdt_slock; \
tmp->p3_flags |= PF_U | PF_V; \
WALL_L_SET(tmp)
#define wall_uv_r(tmp) \
tmp->uv.v = _fr_sfuv_list[_fdt_hgt_pt] + _fdt_slock; \
tmp->p3_flags |= PF_U | PF_V; \
WALL_R_SET(tmp)
#define wall_uv_l_i(tmp) \
tmp->uv.v = _fr_sfuv_list[_fdt_hgt_pt] + _fdt_slock; \
tmp->p3_flags |= PF_U | PF_V | PF_I; \
WALL_L_SET(tmp)
#define wall_uv_r_i(tmp) \
tmp->uv.v = _fr_sfuv_list[_fdt_hgt_pt] + _fdt_slock; \
tmp->p3_flags |= PF_U | PF_V | PF_I; \
WALL_R_SET(tmp)
// if ((pt_num+1)&2) tmp->u=0; else tmp->u=1<<8;
#ifndef PARTIAL_TILES
#define EXT_WALL_L_SET(pt) WALL_L_SET(pt)
#define EXT_WALL_R_SET(pt) WALL_R_SET(pt)
#else
#ifdef FLIP_BITS
#define EXT_WALL_L_SET(pt) pt->uv.u = (fix_flip + (flip_sign)*hgt_data[0]) >> 8
#define EXT_WALL_R_SET(pt) pt->uv.u = (fix_flip + (flip_sign)*hgt_data[0]) >> 8
#else
#define EXT_WALL_L_SET(pt) pt->uv.u = hgt_data[0] >> 8
#define EXT_WALL_R_SET(pt) pt->uv.u = hgt_data[0] >> 8
#endif
#endif
// really, these could use 0 and 1<<8 for u coordinates, since why not without partial tiles
#define ext_wall_uv_l(tmp, hgt_data) \
tmp->uv.v = ((fix_make(4, 0) - hgt_data[1]) >> 8) + _fdt_slock; \
tmp->p3_flags |= PF_U | PF_V; \
EXT_WALL_L_SET(tmp)
#define ext_wall_uv_r(tmp, hgt_data) \
tmp->uv.v = ((fix_make(4, 0) - hgt_data[1]) >> 8) + _fdt_slock; \
tmp->p3_flags |= PF_U | PF_V; \
EXT_WALL_R_SET(tmp)
#define ext_wall_uv_l_i(tmp, hgt_data) \
tmp->uv.v = ((fix_make(4, 0) - hgt_data[1]) >> 8) + _fdt_slock; \
tmp->p3_flags |= PF_U | PF_V | PF_I; \
EXT_WALL_L_SET(tmp)
#define ext_wall_uv_r_i(tmp, hgt_data) \
tmp->uv.v = ((fix_make(4, 0) - hgt_data[1]) >> 8) + _fdt_slock; \
tmp->p3_flags |= PF_U | PF_V | PF_I; \
EXT_WALL_R_SET(tmp)
// i can feel it in my bones
// im gonna spend my whole life alone
// tabs_int_wall
//#pragma disable_message(202)
static void _fr_null_int_wall(int wall_id) {}
//#pragma enable_message(202)
static void _fr_flat_int_wall(int wall_id) {
WallsToPts *wpt = &wall_pts[wall_id];
// need to have face_code set and be ready with flip and hold and all that jazz
_fr_figure_pt(_fdt_tmppts[0], wpt->ul);
_fr_figure_pt(_fdt_tmppts[1], wpt->ur);
_fr_figure_pt(_fdt_tmppts[2], wpt->lr);
_fr_figure_pt(_fdt_tmppts[3], wpt->ll);
_fr_ndbg(NO_REND, g3_draw_poly((*fr_get_idx)(), 4, _fdt_tmppts));
_fr_sdbg(STATS, _frp.stats.int_wall++);
}
#ifdef FLAT_SUPPORT
static void _fr_flat_lit_int_wall(int wall_id) {
WallsToPts *wpt = &wall_pts[wall_id];
// need to have face_code set and be ready with flip and hold and all that jazz
_fr_figure_pt(_fdt_tmppts[0], wpt->ul);
_fr_pt_light(_fdt_tmppts[0]);
_fdt_tmppts[0]->p3_flags |= PF_I;
_fr_figure_pt(_fdt_tmppts[1], wpt->ur);
_fr_pt_light(_fdt_tmppts[1]);
_fdt_tmppts[1]->p3_flags |= PF_I;
_fr_figure_pt(_fdt_tmppts[2], wpt->lr);
_fr_pt_light(_fdt_tmppts[2]);
_fdt_tmppts[2]->p3_flags |= PF_I;
_fr_figure_pt(_fdt_tmppts[3], wpt->ll);
_fr_pt_light(_fdt_tmppts[3]);
_fdt_tmppts[3]->p3_flags |= PF_I;
gr_set_fcolor((*fr_get_idx)());
_fr_ndbg(NO_REND, g3_draw_spoly(4, _fdt_tmppts));
_fr_sdbg(STATS, _frp.stats.int_wall++);
}
#else
#define _fr_flat_lit_int_wall _fr_tmap_lit_int_wall
#endif
static void _fr_tmap_int_wall(int wall_id) {
WallsToPts *wpt = &wall_pts[wall_id];
// need to have face_code set and be ready with flip and hold and all that jazz
_fr_figure_pt(_fdt_tmppts[0], wpt->ul);
wall_uv_l(_fdt_tmppts[0]);
_fr_figure_pt(_fdt_tmppts[1], wpt->ur);
wall_uv_r(_fdt_tmppts[1]);
_fr_figure_pt(_fdt_tmppts[2], wpt->lr);
wall_uv_r(_fdt_tmppts[2]);
_fr_figure_pt(_fdt_tmppts[3], wpt->ll);
wall_uv_l(_fdt_tmppts[3]);
if (quik_draw_tmap_p(4)) {
_fr_ndbg(NO_REND, _fr_wall_func(4, _fdt_tmppts, (*fr_get_tmap)()));
}
_fr_sdbg(STATS, _frp.stats.int_wall++);
}
static void _fr_tmap_lit_int_wall(int wall_id) {
WallsToPts *wpt = &wall_pts[wall_id];
// need to have face_code set and be ready with flip and hold and all that jazz
_fr_figure_pt(_fdt_tmppts[0], wpt->ul);
wall_uv_l_i(_fdt_tmppts[0]);
_fr_pt_light(_fdt_tmppts[0]);
_fr_figure_pt(_fdt_tmppts[1], wpt->ur);
wall_uv_r_i(_fdt_tmppts[1]);
_fr_pt_light(_fdt_tmppts[1]);
_fr_figure_pt(_fdt_tmppts[2], wpt->lr);
wall_uv_r_i(_fdt_tmppts[2]);
_fr_pt_light(_fdt_tmppts[2]);
_fr_figure_pt(_fdt_tmppts[3], wpt->ll);
wall_uv_l_i(_fdt_tmppts[3]);
_fr_pt_light(_fdt_tmppts[3]);
if (quik_draw_tmap_p(4)) {
_fr_ndbg(NO_REND, _fr_lit_wall_func(4, _fdt_tmppts, (*fr_get_tmap)()));
}
_fr_sdbg(STATS, _frp.stats.int_wall++);
}
static void _fr_cspace_wire_int_wall(int wall_id) {
WallsToPts *wpt = &wall_pts[wall_id];
// need to have face_code set and be ready with flip and hold and all that jazz
_fr_figure_pt(_fdt_tmppts[0], wpt->ul);
_fr_pt_cspace(_fdt_tmppts[0]);
_fr_figure_pt(_fdt_tmppts[1], wpt->ur);
_fr_pt_cspace(_fdt_tmppts[1]);
_fr_figure_pt(_fdt_tmppts[2], wpt->lr);
_fr_pt_cspace(_fdt_tmppts[2]);
_fr_figure_pt(_fdt_tmppts[3], wpt->ll);
_fr_pt_cspace(_fdt_tmppts[3]);
_fr_ndbg(NO_REND, _fr_draw_wire_cpoly_4());
_fr_sdbg(STATS, _frp.stats.int_wall++);
}
static void _fr_cspace_full_int_wall(int wall_id) {
WallsToPts *wpt = &wall_pts[wall_id];
// need to have face_code set and be ready with flip and hold and all that jazz
_fr_figure_pt(_fdt_tmppts[0], wpt->ul);
_fr_pt_cspace(_fdt_tmppts[0]);
_fr_figure_pt(_fdt_tmppts[1], wpt->ur);
_fr_pt_cspace(_fdt_tmppts[1]);
_fr_figure_pt(_fdt_tmppts[2], wpt->lr);
_fr_pt_cspace(_fdt_tmppts[2]);
_fr_figure_pt(_fdt_tmppts[3], wpt->ll);
_fr_pt_cspace(_fdt_tmppts[3]);
_fr_ndbg(NO_REND, g3_draw_cpoly(4, _fdt_tmppts));
_fr_sdbg(STATS, _frp.stats.int_wall++);
}
// tabs_ext_wall
// this takes a wacky hgt data set
// uses _fdt_wallid, _fdt_lcore, _fdt_rcore
//#pragma disable_message(202)
static void _fr_null_ext_wall(fix pt_list[4][2]) {}
//#pragma enable_message(202)
static void _fr_flat_ext_wall(
fix pt_list[4][2]) { // note we do this out of order so we can have left left right right, ie. note their indicies
g3_replace_add_delta_y(*_fdt_lcore, _fdt_tmppts[0], -pt_list[0][1]);
g3_replace_add_delta_y(*_fdt_lcore, _fdt_tmppts[3], -pt_list[3][1]);
_fdt_pbase = _fdt_rbase;
g3_replace_add_delta_y(*_fdt_rcore, _fdt_tmppts[1], -pt_list[1][1]);
g3_replace_add_delta_y(*_fdt_rcore, _fdt_tmppts[2], -pt_list[2][1]);
_fr_ndbg(NO_REND, g3_draw_poly((*fr_get_idx)(), 4, _fdt_tmppts));
_fr_sdbg(STATS, _frp.stats.ext_wall++);
}
#ifdef FLAT_SUPPORT
static void _fr_flat_lit_ext_wall(fix pt_list[4][2]) {
g3_replace_add_delta_y(*_fdt_lcore, _fdt_tmppts[0], -pt_list[0][1]);
_fdt_hgt_val = -pt_list[0][1];
_fr_do_light(_fdt_tmppts[0], dlC);
_fdt_tmppts[0]->p3_flags |= PF_I;
g3_replace_add_delta_y(*_fdt_lcore, _fdt_tmppts[3], -pt_list[3][1]);
_fdt_hgt_val = -pt_list[3][1];
_fr_do_light(_fdt_tmppts[3], dlF);
_fdt_tmppts[3]->p3_flags |= PF_I;
_fdt_pbase = _fdt_rbase;
g3_replace_add_delta_y(*_fdt_rcore, _fdt_tmppts[1], -pt_list[1][1]);
_fdt_hgt_val = -pt_list[1][1];
_fr_do_light(_fdt_tmppts[1], dlC);
_fdt_tmppts[1]->p3_flags |= PF_I;
g3_replace_add_delta_y(*_fdt_rcore, _fdt_tmppts[2], -pt_list[2][1]);
_fdt_hgt_val = -pt_list[2][1];
_fr_do_light(_fdt_tmppts[2], dlF);
_fdt_tmppts[2]->p3_flags |= PF_I;
gr_set_fcolor((*fr_get_idx)());
_fr_ndbg(NO_REND, g3_draw_spoly(4, _fdt_tmppts));
_fr_sdbg(STATS, _frp.stats.ext_wall++);
}
#else
#define _fr_flat_lit_ext_wall _fr_tmap_lit_ext_wall
#endif
static void _fr_tmap_ext_wall(fix pt_list[4][2]) {
g3_replace_add_delta_y(*_fdt_lcore, _fdt_tmppts[0], -pt_list[0][1]);
ext_wall_uv_l(_fdt_tmppts[0], pt_list[0]);
g3_replace_add_delta_y(*_fdt_lcore, _fdt_tmppts[3], -pt_list[3][1]);
ext_wall_uv_l(_fdt_tmppts[3], pt_list[3]);
_fdt_pbase = _fdt_rbase;
g3_replace_add_delta_y(*_fdt_rcore, _fdt_tmppts[1], -pt_list[1][1]);
ext_wall_uv_r(_fdt_tmppts[1], pt_list[1]);
g3_replace_add_delta_y(*_fdt_rcore, _fdt_tmppts[2], -pt_list[2][1]);
ext_wall_uv_r(_fdt_tmppts[2], pt_list[2]);
if (quik_draw_tmap_p(4)) {
_fr_ndbg(NO_REND, _fr_wall_func(4, _fdt_tmppts, (*fr_get_tmap)()));
}
_fr_sdbg(STATS, _frp.stats.ext_wall++);
}
static void _fr_tmap_lit_ext_wall(fix pt_list[4][2]) {
g3_replace_add_delta_y(*_fdt_lcore, _fdt_tmppts[0], -pt_list[0][1]);
ext_wall_uv_l_i(_fdt_tmppts[0], pt_list[0]);
_fdt_hgt_val = pt_list[0][1];
_fr_do_light(_fdt_tmppts[0], dlC);
g3_replace_add_delta_y(*_fdt_lcore, _fdt_tmppts[3], -pt_list[3][1]);
ext_wall_uv_l_i(_fdt_tmppts[3], pt_list[3]);
_fdt_hgt_val = pt_list[3][1];
_fr_do_light(_fdt_tmppts[3], dlF);
_fdt_pbase = _fdt_rbase;
g3_replace_add_delta_y(*_fdt_rcore, _fdt_tmppts[1], -pt_list[1][1]);
ext_wall_uv_r_i(_fdt_tmppts[1], pt_list[1]);
_fdt_hgt_val = pt_list[1][1];
_fr_do_light(_fdt_tmppts[1], dlC);
g3_replace_add_delta_y(*_fdt_rcore, _fdt_tmppts[2], -pt_list[2][1]);
ext_wall_uv_r_i(_fdt_tmppts[2], pt_list[2]);
_fdt_hgt_val = pt_list[2][1];
_fr_do_light(_fdt_tmppts[2], dlF);
if (quik_draw_tmap_p(4)) {
_fr_ndbg(NO_REND, _fr_lit_wall_func(4, _fdt_tmppts, (*fr_get_tmap)()));
}
_fr_sdbg(STATS, _frp.stats.ext_wall++);
}
static void _fr_cspace_wire_ext_wall(fix pt_list[4][2]) {
g3_replace_add_delta_y(*_fdt_lcore, _fdt_tmppts[0], -pt_list[0][1]);
_fr_do_cspace(_fdt_tmppts[0], dlC);
g3_replace_add_delta_y(*_fdt_lcore, _fdt_tmppts[3], -pt_list[3][1]);
_fr_do_cspace(_fdt_tmppts[3], dlF);
_fdt_pbase = _fdt_rbase;
g3_replace_add_delta_y(*_fdt_rcore, _fdt_tmppts[1], -pt_list[1][1]);
_fr_do_cspace(_fdt_tmppts[1], dlC);
g3_replace_add_delta_y(*_fdt_rcore, _fdt_tmppts[2], -pt_list[2][1]);
_fr_do_cspace(_fdt_tmppts[2], dlF);
_fr_ndbg(NO_REND, _fr_draw_wire_cpoly_4());
_fr_sdbg(STATS, _frp.stats.ext_wall++);
}
static void _fr_cspace_full_ext_wall(fix pt_list[4][2]) {
g3_replace_add_delta_y(*_fdt_lcore, _fdt_tmppts[0], -pt_list[0][1]);
_fr_do_cspace(_fdt_tmppts[0], dlC);
g3_replace_add_delta_y(*_fdt_lcore, _fdt_tmppts[3], -pt_list[3][1]);
_fr_do_cspace(_fdt_tmppts[3], dlF);
_fdt_pbase = _fdt_rbase;
g3_replace_add_delta_y(*_fdt_rcore, _fdt_tmppts[1], -pt_list[1][1]);
_fr_do_cspace(_fdt_tmppts[1], dlC);
g3_replace_add_delta_y(*_fdt_rcore, _fdt_tmppts[2], -pt_list[2][1]);
_fr_do_cspace(_fdt_tmppts[2], dlF);
_fr_ndbg(NO_REND, g3_draw_cpoly(4, _fdt_tmppts));
_fr_sdbg(STATS, _frp.stats.ext_wall++);
}
// tabs_flr
// should store pt_code, and look up in there....
#define floor_uv(pt, pn) \
{ \
(pt)->uv.u = pt_uv[pn][pt_rot][0]; \
(pt)->uv.v = pt_uv[pn][pt_rot][1]; \
(pt)->p3_flags |= PF_U | PF_V; \
}
#define ceil_uv(pt, pn) \
{ \
(pt)->uv.u = pt_uv[pn][pt_rot][0]; \
(pt)->uv.v = pt_uv[pn][pt_rot][1]; \
(pt)->p3_flags |= PF_U | PF_V; \
}
#define floor_uv_i(pt, pn) \
{ \
(pt)->uv.u = pt_uv[pn][pt_rot][0]; \
(pt)->uv.v = pt_uv[pn][pt_rot][1]; \
(pt)->p3_flags |= PF_U | PF_V | PF_I; \
}
#define ceil_uv_i(pt, pn) \
{ \
(pt)->uv.u = pt_uv[pn][pt_rot][0]; \
(pt)->uv.v = pt_uv[pn][pt_rot][1]; \
(pt)->p3_flags |= PF_U | PF_V | PF_I; \
}
static void _fr_null_flrceil(void) {}
// lets start a war, jack up the dow jones
static void _fr_flat_flr(void) {
uchar *ptdat = _fdt_ttf->data, *pt_merge_mask;
int i, pt_code, loopcnt;
g3s_phandle *pb;
loopcnt = _fdt_ttf->flags >> FRFLRSHF_2ELEM; // 0 or 1
pt_merge_mask = merge_masks[me_bits_mirror(_fdt_mptr)][FDT_LK_FLR];
do {
for (pb = &_fdt_tmppts[0], i = 0; i < _fdt_ttf->ptsper; i++) {
pt_code = *ptdat++;
pt_code = (pt_code ^ pt_merge_mask[0]) & pt_merge_mask[1];
_fr_figure_pt(*pb++, pt_code);
}
//¥¥ bug?? _fr_ndbg(NO_REND,g3_draw_poly((*fr_get_idx)(),_fdt_ttf->ptsper,&_fdt_tmppts));
_fr_ndbg(NO_REND, g3_draw_poly((*fr_get_idx)(), _fdt_ttf->ptsper, _fdt_tmppts));
} while (loopcnt-- > 0);
_fr_sdbg(STATS, _frp.stats.flr++);
}
#ifdef FLAT_SUPPORT
static void _fr_flat_lit_flr(void) {
uchar *ptdat = _fdt_ttf->data, *pt_merge_mask;
int i, pt_code, loopcnt;
g3s_phandle *pb;
loopcnt = _fdt_ttf->flags >> FRFLRSHF_2ELEM; // 0 or 1
pt_merge_mask = merge_masks[me_bits_mirror(_fdt_mptr)][FDT_LK_FLR];
gr_set_fcolor((*fr_get_idx)());
do {
for (pb = &_fdt_tmppts[0], i = 0; i < _fdt_ttf->ptsper; i++) {
pt_code = *ptdat++;
pt_code = (pt_code ^ pt_merge_mask[0]) & pt_merge_mask[1];
_fr_figure_pt(*pb, pt_code);
_fr_pt_light(*pb);
(*pb++)->p3_flags |= PF_I;
}
_fr_ndbg(NO_REND, g3_draw_spoly(_fdt_ttf->ptsper, &_fdt_tmppts));
} while (loopcnt-- > 0);
_fr_sdbg(STATS, _frp.stats.flr++);
}
#else
#define _fr_flat_lit_flr _fr_tmap_lit_flr
#endif
static void _fr_tmap_flr(void) {
uchar nrm_mask = fr_fnorm_list[_fdt_tt];
int i, pt_code, loopcnt;
g3s_phandle *pb;
uchar *ptdat = _fdt_ttf->data, *pt_merge_mask;
int pt_rot = me_rotflr(_fdt_mptr);
loopcnt = _fdt_ttf->flags >> FRFLRSHF_2ELEM; // 0 or 1
pt_merge_mask = merge_masks[me_bits_mirror(_fdt_mptr)][FDT_LK_FLR];
do {
for (pb = &_fdt_tmppts[0], i = 0; i < _fdt_ttf->ptsper; i++) {
pt_code = *ptdat++;
pt_code = (pt_code ^ pt_merge_mask[0]) & pt_merge_mask[1];
_fr_figure_pt(*pb, pt_code);
pt_code &= FRPTSPTOFF;
floor_uv(*pb, pt_code);
pb++;
}
if (quik_draw_tmap_p(_fdt_ttf->ptsper)) {
if ((nrm_mask & 0xf) == FRFNORM_VFULL) {
_fr_ndbg(NO_REND, _fr_floor_func(_fdt_ttf->ptsper, _fdt_tmppts, (*fr_get_tmap)()));
} else {
_fr_ndbg(NO_REND, _fr_per_func(_fdt_ttf->ptsper, _fdt_tmppts, (*fr_get_tmap)()));
}
}
} while (loopcnt-- > 0);
_fr_sdbg(STATS, _frp.stats.flr++);
}
static void _fr_tmap_lit_flr(void) {
uchar nrm_mask = fr_fnorm_list[_fdt_tt];
int i, pt_code, loopcnt;
g3s_phandle *pb;
uchar *ptdat = _fdt_ttf->data, *pt_merge_mask;
int pt_rot = me_rotflr(_fdt_mptr);
loopcnt = _fdt_ttf->flags >> FRFLRSHF_2ELEM; // 0 or 1
pt_merge_mask = merge_masks[me_bits_mirror(_fdt_mptr)][FDT_LK_FLR];
do {
for (pb = &_fdt_tmppts[0], i = 0; i < _fdt_ttf->ptsper; i++) {
pt_code = *ptdat++;
pt_code = (pt_code ^ pt_merge_mask[0]) & pt_merge_mask[1];
_fr_figure_pt(*pb, pt_code);
pt_code &= FRPTSPTOFF;
floor_uv_i(*pb, pt_code);
_fr_pt_light(*pb++);
}
if (quik_draw_tmap_p(_fdt_ttf->ptsper)) {
if ((nrm_mask & 0xf) == FRFNORM_VFULL) {
_fr_ndbg(NO_REND, _fr_lit_floor_func(_fdt_ttf->ptsper, _fdt_tmppts, (*fr_get_tmap)()));
} else {
_fr_ndbg(NO_REND, _fr_lit_per_func(_fdt_ttf->ptsper, _fdt_tmppts, (*fr_get_tmap)()));
}
}
} while (loopcnt-- > 0);
_fr_sdbg(STATS, _frp.stats.flr++);
}
static void _fr_cspace_wire_flr(void) {
uchar *ptdat = _fdt_ttf->data, *pt_merge_mask;
int i, pt_code, loopcnt;
g3s_phandle *pb;
loopcnt = _fdt_ttf->flags >> FRFLRSHF_2ELEM; // 0 or 1
pt_merge_mask = merge_masks[me_bits_mirror(_fdt_mptr)][FDT_LK_FLR];
gr_set_fcolor((*fr_get_idx)());
do {
for (pb = &_fdt_tmppts[0], i = 0; i < _fdt_ttf->ptsper; i++) {
pt_code = *ptdat++;
pt_code = (pt_code ^ pt_merge_mask[0]) & pt_merge_mask[1];
_fr_figure_pt(*pb, pt_code);
_fr_pt_cspace(*pb);
pb++;
}
_fr_ndbg(NO_REND, _fr_draw_wire_cpoly_3or4(_fdt_ttf->ptsper));
} while (loopcnt-- > 0);
_fr_sdbg(STATS, _frp.stats.flr++);
}
static void _fr_cspace_full_flr(void) {
uchar *ptdat = _fdt_ttf->data, *pt_merge_mask;
int i, pt_code, loopcnt;
g3s_phandle *pb;
loopcnt = _fdt_ttf->flags >> FRFLRSHF_2ELEM; // 0 or 1
pt_merge_mask = merge_masks[me_bits_mirror(_fdt_mptr)][FDT_LK_FLR];
gr_set_fcolor((*fr_get_idx)());
do {
for (pb = &_fdt_tmppts[0], i = 0; i < _fdt_ttf->ptsper; i++) {
pt_code = *ptdat++;
pt_code = (pt_code ^ pt_merge_mask[0]) & pt_merge_mask[1];
_fr_figure_pt(*pb, pt_code);
_fr_pt_cspace(*pb);
pb++;
}
_fr_ndbg(NO_REND, g3_draw_cpoly(_fdt_ttf->ptsper, _fdt_tmppts));
} while (loopcnt-- > 0);
_fr_sdbg(STATS, _frp.stats.flr++);
}
// tabs_ceil
static void _fr_flat_ceil(void) {
int i, pt_code, loopcnt = 1;
g3s_phandle *pb;
uchar *ptdat = _fdt_ttf->data, *pt_merge_mask;
if (_fdt_ttf->flags & FRFLRFLG_NOTOP)
return;
pt_merge_mask = merge_masks[me_bits_mirror(_fdt_mptr)][FDT_LK_CEIL];
do {
for (pb = (&_fdt_tmppts[0]) + _fdt_ttf->ptsper - 1, i = 0; i < _fdt_ttf->ptsper; i++) {
pt_code = *ptdat++;
pt_code = (pt_code ^ pt_merge_mask[0]) & pt_merge_mask[1];
_fr_figure_pt(*pb--, pt_code);
}
_fr_ndbg(NO_REND, g3_draw_poly((*fr_get_idx)(), _fdt_ttf->ptsper, _fdt_tmppts));
} while ((_fdt_ttf->flags & FRFLRFLG_2ELEM) && (loopcnt-- > 0));
_fr_sdbg(STATS, _frp.stats.ceil++);
}
#ifdef FLAT_SUPPORT
static void _fr_flat_lit_ceil(void) {
int i, pt_code, loopcnt = 1;
g3s_phandle *pb;
uchar *ptdat = _fdt_ttf->data, *pt_merge_mask;
if (_fdt_ttf->flags & FRFLRFLG_NOTOP)
return;
pt_merge_mask = merge_masks[me_bits_mirror(_fdt_mptr)][FDT_LK_CEIL];
do {
for (pb = (&_fdt_tmppts[0]) + _fdt_ttf->ptsper - 1, i = 0; i < _fdt_ttf->ptsper; i++) {
pt_code = *ptdat++;
pt_code = (pt_code ^ pt_merge_mask[0]) & pt_merge_mask[1];
_fr_figure_pt(*pb, pt_code);
_fr_pt_light(*pb);
(*pb--)->p3_flags |= PF_I;
}
gr_set_fcolor((*fr_get_idx)());
_fr_ndbg(NO_REND, g3_draw_spoly(_fdt_ttf->ptsper, _fdt_tmppts));
} while ((_fdt_ttf->flags & FRFLRFLG_2ELEM) && (loopcnt-- > 0));
_fr_sdbg(STATS, _frp.stats.ceil++);
}
#else
#define _fr_flat_lit_ceil _fr_tmap_lit_ceil
#endif
static void _fr_tmap_ceil(void) {
uchar nrm_mask = fr_fnorm_list[_fdt_tt];
int i, pt_code, loopcnt = 1;
g3s_phandle *pb;
uchar *ptdat = _fdt_ttf->data, *pt_merge_mask;
int pt_rot = me_rotceil(_fdt_mptr);
if (_fdt_ttf->flags & FRFLRFLG_NOTOP)
return;
pt_merge_mask = merge_masks[me_bits_mirror(_fdt_mptr)][FDT_LK_CEIL];
do {
for (pb = (&_fdt_tmppts[0]) + _fdt_ttf->ptsper - 1, i = 0; i < _fdt_ttf->ptsper; i++) {
pt_code = *ptdat++;
pt_code = (pt_code ^ pt_merge_mask[0]) & pt_merge_mask[1];
_fr_figure_pt(*pb, pt_code);
pt_code &= FRPTSPTOFF;
ceil_uv(*pb, pt_code);
pb--;
}
if (quik_draw_tmap_p(_fdt_ttf->ptsper)) {
if ((nrm_mask & 0xf) == FRFNORM_VFULL) {
_fr_ndbg(NO_REND, _fr_floor_func(_fdt_ttf->ptsper, _fdt_tmppts, (*fr_get_tmap)()));
} else {
_fr_ndbg(NO_REND, _fr_per_func(_fdt_ttf->ptsper, _fdt_tmppts, (*fr_get_tmap)()));
}
}
} while ((_fdt_ttf->flags & FRFLRFLG_2ELEM) && (loopcnt-- > 0));
_fr_sdbg(STATS, _frp.stats.ceil++);
}
static void _fr_tmap_lit_ceil(void) {
uchar nrm_mask = fr_fnorm_list[_fdt_tt];
int i, pt_code, loopcnt = 1;
g3s_phandle *pb;
uchar *ptdat = _fdt_ttf->data, *pt_merge_mask;
int pt_rot = me_rotceil(_fdt_mptr);
if (_fdt_ttf->flags & FRFLRFLG_NOTOP)
return;
pt_merge_mask = merge_masks[me_bits_mirror(_fdt_mptr)][FDT_LK_CEIL];
do {
for (pb = (&_fdt_tmppts[0]) + _fdt_ttf->ptsper - 1, i = 0; i < _fdt_ttf->ptsper; i++) {
pt_code = *ptdat++;
pt_code = (pt_code ^ pt_merge_mask[0]) & pt_merge_mask[1];
_fr_figure_pt(*pb, pt_code);
pt_code &= FRPTSPTOFF;
ceil_uv_i(*pb, pt_code);
_fr_pt_light(*pb--);
}
if (quik_draw_tmap_p(_fdt_ttf->ptsper)) {
if ((nrm_mask & 0xf) == FRFNORM_VFULL) {
_fr_ndbg(NO_REND, _fr_lit_floor_func(_fdt_ttf->ptsper, _fdt_tmppts, (*fr_get_tmap)()));
} else {
_fr_ndbg(NO_REND, _fr_lit_per_func(_fdt_ttf->ptsper, _fdt_tmppts, (*fr_get_tmap)()));
}
}
} while ((_fdt_ttf->flags & FRFLRFLG_2ELEM) && (loopcnt-- > 0));
_fr_sdbg(STATS, _frp.stats.ceil++);
}
//#pragma disable_message(202)
static void _fr_cspace_wire_ceil(void) {
int i, pt_code, loopcnt = 1;
g3s_phandle *pb;
uchar *ptdat = _fdt_ttf->data, *pt_merge_mask;
if (_fdt_ttf->flags & FRFLRFLG_NOTOP)
return;
pt_merge_mask = merge_masks[me_bits_mirror(_fdt_mptr)][FDT_LK_CEIL];
do {
for (pb = (&_fdt_tmppts[0]) + _fdt_ttf->ptsper - 1, i = 0; i < _fdt_ttf->ptsper; i++) {
pt_code = *ptdat++;
pt_code = (pt_code ^ pt_merge_mask[0]) & pt_merge_mask[1];
_fr_figure_pt(*pb, pt_code);
_fr_pt_cspace(*pb);
pb--;
}
_fr_ndbg(NO_REND, _fr_draw_wire_cpoly_3or4(_fdt_ttf->ptsper));
} while ((_fdt_ttf->flags & FRFLRFLG_2ELEM) && (loopcnt-- > 0));
_fr_sdbg(STATS, _frp.stats.ceil++);
}
static void _fr_cspace_full_ceil(void) {
int i, pt_code, loopcnt = 1;
g3s_phandle *pb;
uchar *ptdat = _fdt_ttf->data, *pt_merge_mask;
if (_fdt_ttf->flags & FRFLRFLG_NOTOP)
return;
pt_merge_mask = merge_masks[me_bits_mirror(_fdt_mptr)][FDT_LK_CEIL];
do {
for (pb = (&_fdt_tmppts[0]) + _fdt_ttf->ptsper - 1, i = 0; i < _fdt_ttf->ptsper; i++) {
pt_code = *ptdat++;
pt_code = (pt_code ^ pt_merge_mask[0]) & pt_merge_mask[1];
_fr_figure_pt(*pb, pt_code);
_fr_pt_cspace(*pb);
pb--;
}
_fr_ndbg(NO_REND, g3_draw_cpoly(_fdt_ttf->ptsper, _fdt_tmppts));
} while ((_fdt_ttf->flags & FRFLRFLG_2ELEM) && (loopcnt-- > 0));
_fr_sdbg(STATS, _frp.stats.ceil++);
}
//#pragma enable_message(202)
// reoptimize these to _NOT_ do all the boneheaded stuff
// i ask for nothing, for myself
// for i am dead, for i am dead
int fr_get_ext_gap(fix *face_l, uchar in_fo, uchar *hgts, uchar *mmptr) {
int fo_t, fo_b;
if (in_fo == 0xff)
return 0;
// if (in_fo&FO_HT_MSK)
fo_t = (in_fo ^ mmptr[2]) & mmptr[3];
fo_b = (in_fo ^ mmptr[0]) & mmptr[1];
// if (_fdt_ttf->flags&FRFLRFLG_USEPR)
if ((fo_t | fo_b) & FO_HT_MSK) {
// uchar cur_fo;
// cur_fo=(in_fo^mmptr[2])&mmptr[3];
*(face_l + 0) = fo_unpack[fo_t & FO_LR_MSK][T_LEFT]; // set x for left ceil
*(face_l + 2) = fo_unpack[fo_t & FO_LR_MSK][T_RIGHT]; // set x for right ceil
*(face_l + 1) = *(face_l + 3) = _fr_fhgt_list[hgts[FDT_PT_CEIL]]; // set y's
if (fo_t & FO_L_PARM)
*(face_l + 1) -= _fr_fhgt_list[hgts[FDT_PT_PARM]];
if (fo_t & FO_R_PARM)
*(face_l + 3) -= _fr_fhgt_list[hgts[FDT_PT_PARM]];
// cur_fo=(in_fo^mmptr[0])&mmptr[1];
*(face_l + 4) = fo_unpack[fo_b & FO_LR_MSK][T_RIGHT]; // set x for right flr
*(face_l + 6) = fo_unpack[fo_b & FO_LR_MSK][T_LEFT]; // set x for left flr
*(face_l + 5) = *(face_l + 7) = _fr_fhgt_list[hgts[FDT_PT_FLR]]; // set y's
if (fo_b & FO_R_PARM)
*(face_l + 5) += _fr_fhgt_list[hgts[FDT_PT_PARM]];
if (fo_b & FO_L_PARM)
*(face_l + 7) += _fr_fhgt_list[hgts[FDT_PT_PARM]];
if ((*(face_l + 3) == *(face_l + 5)) && (*(face_l + 1) == *(face_l + 7)))
return 0;
} else {
*(face_l + 0) = fo_unpack[in_fo & FO_LR_MSK][T_LEFT]; // set x for left ceil
*(face_l + 2) = fo_unpack[in_fo & FO_LR_MSK][T_RIGHT]; // set x for right ceil
*(face_l + 1) = *(face_l + 3) = _fr_fhgt_list[hgts[FDT_PT_CEIL]]; // set y's
*(face_l + 4) = fo_unpack[in_fo & FO_LR_MSK][T_RIGHT]; // set x for right flr
*(face_l + 6) = fo_unpack[in_fo & FO_LR_MSK][T_LEFT]; // set x for left flr
*(face_l + 5) = *(face_l + 7) = _fr_fhgt_list[hgts[FDT_PT_FLR]]; // set y's
if (*(face_l + 1) == *(face_l + 5))
return 0;
}
return 1;
}
#define ANTI_MASK_COUNT 0x0fff
#define ANTI_MASK_PUNTTOP 0x1000
#define ANTI_MASK_PUNTBOT 0x2000
// or in 1, since there is still the top face, though it is to be punted
#define ANTI_RET_PUNTALL (ANTI_MASK_PUNTTOP | ANTI_MASK_PUNTBOT | 1)
// connect the god damn dots
// connect the god damn dots
// connect the god damn dots
// who am i trying to impress
// who could care less
int _fr_get_anti_gap(fix *face_l, uchar in_fo, uchar *hgts, uchar *mmptr) {
int fo_t, fo_b;
int facecnt = 1;
// more importantly, we think face_l is starting 4 in, we fill normally which works
// also note that if no height changes, it could mean we have half walls
// so we check in that case, and if so, add it in place
_fr_sdbg(ANAL_CHK, if (in_fo == 0xff) mprintf("_fr_get_anti_gap: hey in_fo is 0xff\n"));
fo_t = (in_fo ^ mmptr[2]) & mmptr[3];
fo_b = (in_fo ^ mmptr[0]) & mmptr[1];
if ((fo_t | fo_b) & FO_HT_MSK) { // these cant be at top, since they have parameter
// uchar cur_fo; // unless of course it masks out.... hmmm
// cur_fo=(in_fo^mmptr[2])&mmptr[3];
if (((fo_t & FO_HT_MSK) == 0) && (hgts[FDT_PT_CEIL] == MAX_HGT)) // we are fully at top
facecnt |= ANTI_MASK_PUNTTOP;
else {
*(face_l + 5) = *(face_l + 7) = _fr_fhgt_list[hgts[FDT_PT_CEIL]]; // set y's
if (fo_t & FO_L_PARM)
*(face_l + 5) -= _fr_fhgt_list[hgts[FDT_PT_PARM]];
if (fo_t & FO_R_PARM)
*(face_l + 7) -= _fr_fhgt_list[hgts[FDT_PT_PARM]];
}
face_l += 8;
// cur_fo=(in_fo^mmptr[0])&mmptr[1];
if (((fo_b & FO_HT_MSK) == 0) && (hgts[FDT_PT_FLR] == 0)) // we are fully at bottom
facecnt |= ANTI_MASK_PUNTBOT;
else {
*(face_l + 1) = *(face_l + 3) = _fr_fhgt_list[hgts[FDT_PT_FLR]]; // set y's
if (fo_b & FO_R_PARM)
*(face_l + 1) += _fr_fhgt_list[hgts[FDT_PT_PARM]];
if (fo_b & FO_L_PARM)
*(face_l + 3) += _fr_fhgt_list[hgts[FDT_PT_PARM]];
}
} else {
if (hgts[FDT_PT_CEIL] == MAX_HGT) // already at top
facecnt |= ANTI_MASK_PUNTTOP;
else // correct x's for this have been set already in _fr_init_slopes in frpipe
*(face_l + 5) = *(face_l + 7) = _fr_fhgt_list[hgts[FDT_PT_CEIL]]; // set y's
face_l += 8; // skip to 2nd entry, as we have finshed or punted the first
if ((in_fo & FO_LR_MSK) != 0x06) // are we not fully free, tm? (ie. foClr)
{ // add the anti of the current here...
facecnt++;
// im sure this is wrong
*(face_l + 0) = fo_unpack[in_fo & FO_LR_MSK][T_LEFT]; // flip since this is real order
*(face_l + 2) = fo_unpack[in_fo & FO_LR_MSK][T_RIGHT];
*(face_l + 1) = *(face_l + 3) = _fr_fhgt_list[hgts[FDT_PT_CEIL]]; // set y's
*(face_l + 4) = fo_unpack[in_fo & FO_LR_MSK][T_RIGHT]; // har har, same flip
*(face_l + 6) = fo_unpack[in_fo & FO_LR_MSK][T_LEFT];
*(face_l + 7) = *(face_l + 5) = _fr_fhgt_list[hgts[FDT_PT_FLR]]; // set y's
face_l += 8; // skip to 3rd, as we have just done middle
}
if (hgts[FDT_PT_FLR] == 0)
facecnt |= ANTI_MASK_PUNTBOT;
else
*(face_l + 1) = *(face_l + 3) = _fr_fhgt_list[hgts[FDT_PT_FLR]]; // set y's
}
return facecnt;
}
// amazes me the will of instinct
// keep these in place so the compiler can deal
// these are of wall_id vs. point_id vs. x and y (as in u,v)
static fix inner_wall[2][4][2], final_wall[4][4][2];
fix outer_wall[3][4][2]; // base is set up in frpipe.c
static fix *use_outer_wall; // pointer to the outer wall area to really use
fix tf_diag_walls[4][2] = {{0, fix_make(4, 0)}, {fix_make(1, 0), fix_make(4, 0)}, {fix_make(1, 0), 0}, {0, 0}};
static fix diag_norms[3] = {0, 0, 0};
#ifdef HACK_SHOW
void hack_show(fix edward[4][2]) {
mprintf(" %8.8x %8.8x %8.8x %8.8x\n", edward[0][0], edward[0][1], edward[1][0], edward[1][1]);
mprintf(" %8.8x %8.8x %8.8x %8.8x\n", edward[3][0], edward[3][1], edward[2][0], edward[2][1]);
}
#endif
// renders icnt of final_walls
void _render_3d_walls(int which, int cnt) {
WallsToPts *wpt = &wall_pts[FROUTERWALLS + which];
_fdt_wallid = which;
flip_setup(which);
switch (_fdt_pbase = pt_deref[(wpt->ul & FRPTSPTOFF)].base) {
case 0:
_fdt_lcore = _fr_ptbase;
break;
case 1:
_fdt_lcore = _fr_ptnext;
break;
case 2:
_fdt_lcore = _fr_ptnext + 1;
break;
case 3:
_fdt_lcore = _fr_ptbase + 1;
break;
}
switch (_fdt_rbase = pt_deref[(wpt->ur & FRPTSPTOFF)].base) {
case 0:
_fdt_rcore = _fr_ptbase;
break;
case 1:
_fdt_rcore = _fr_ptnext;
break;
case 2:
_fdt_rcore = _fr_ptnext + 1;
break;
case 3:
_fdt_rcore = _fr_ptbase + 1;
break;
}
_fdt_lcore += _fdt_x;
_fdt_rcore += _fdt_x;
switch (cnt) {
case 4:
_fr_terr_ext_wall(final_wall[3]);
case 3:
_fr_terr_ext_wall(final_wall[2]);
case 2:
_fr_terr_ext_wall(final_wall[1]);
case 1:
_fr_terr_ext_wall(final_wall[0]);
case 0:
break;
}
}
// currently always assumes full width... ie. is really broken
#define sgn(x, y) (x > y ? 1 : (x == y ? 0 : -1))
#define io_wall_cmp(iwp, cmp, owp) ((*(i_wall + (iwp << 1) + 1)) cmp(*(o_wall + (owp << 1) + 1)))
#define io_wall_sgn(iwp, owp) (sgn((*(i_wall + (iwp << 1) + 1)), (*(o_wall + (owp << 1) + 1))))
#define dst_from_i(dwp, iwp) \
{ \
(*(dst_wall + (dwp << 1) + 1)) = (*(i_wall + (iwp << 1) + 1)); \
(*(dst_wall + (dwp << 1))) = (*(i_wall + (iwp << 1))); \
}
#define dst_from_o(dwp, owp) \
{ \
(*(dst_wall + (dwp << 1) + 1)) = (*(o_wall + (owp << 1) + 1)); \
(*(dst_wall + (dwp << 1))) = (*(o_wall + (owp << 1))); \
}
int f_is_i;
/*
* currently broken when the following is true: 40000 40000
* /| as the outside gap, and | | inside ie. 10000 20000 20000 20000
* / | | | o_wall 10000 10000 i_wall 10000 10000
* 00000 00000
* the problem is 40 40 > 10 20, and 10 <= 10 but 20 ! <= 10 so it thinks bottom crossing failure
*/
// a hack is now in to fix this, should be rewritten in assembler as well
int merge_walls(fix *dst_wall, fix *i_wall, int i_cnt, fix *o_wall, int o_cnt) {
int cur_i = 0, cur_o = 0, f_cnt = 0, tmp1, tmp2;
int sgn0, sgn1, sgn2, sgn3;
f_is_i = TRUE;
while (cur_i < i_cnt) {
while (io_wall_cmp(0, <=, 3) && io_wall_cmp(1, <=, 2)) // skip to next outer wall, this one is above our gap
{
o_wall += 8;
if (++cur_o >= o_cnt)
return f_cnt;
}
if (io_wall_cmp(3, >=, 0) && io_wall_cmp(2, >=, 1)) // if gap bottom above current outer wall, skip to next gap
{
i_wall += 8;
f_is_i = FALSE;
if (++cur_i >= i_cnt)
return f_cnt;
else
continue;
}
f_cnt++;
if ((sgn0 = io_wall_sgn(0, 0)) != (sgn1 = io_wall_sgn(1, 1))) // tmp is gap top below outer wall top
{
if (sgn0 == 0)
tmp1 = (sgn1 <= 0);
else if (sgn1 == 0)
tmp1 = (sgn0 <= 0);
else {
// Warning(("top crossing case\n")); // crossing case sucks rocks
tmp1 = 0;
}
} else
tmp1 = (sgn0 <= 0);
if (tmp1) {
dst_from_i(0, 0);
dst_from_i(1, 1);
} else {
dst_from_o(0, 0);
dst_from_o(1, 1);
}
if ((sgn3 = io_wall_sgn(3, 3)) != (sgn2 = io_wall_sgn(2, 2))) // tmp is gap bottom above outer wall bottom
{
if (sgn2 == 0)
tmp2 = (sgn3 >= 0);
else if (sgn3 == 0)
tmp2 = (sgn2 >= 0);
else {
// Warning(("bottom crossing case\n"));
tmp2 = 0;
}
} else
tmp2 = (sgn2 >= 0);
f_is_i = (f_is_i && tmp1 && tmp2);
if (tmp2) {
dst_from_i(2, 2);
dst_from_i(3, 3);
i_wall += 8;
if (++cur_i >= i_cnt)
break;
} else {
dst_from_o(2, 2);
dst_from_o(3, 3);
o_wall += 8;
if (++cur_o >= o_cnt)
break;
}
dst_wall += 8;
}
return f_cnt;
}
uchar solid_chk[4] = {FMK_INT_NW, FMK_INT_EW, FMK_INT_SW, FMK_INT_WW};
uchar clear_chk[4] = {FMK_NW, FMK_EW, FMK_SW, FMK_WW};
// local statics dont actually work, since i define static null in debug, so this is here
static int last_ocnt = -1;
// look around at all my playthings
// eighteen percent a year, for nothing
static void _fr_parse_wall(int which) {
int icnt, fcnt, ocnt, useocnt, are_solid;
MapElem *oth_mptr;
uchar oth_hgts[3], oth_fo;
oth_mptr = _fdt_mptr + wall_adds[which];
if (_fdt_me_flags & MAP_FRIEND_FULL_MASK)
_game_fr_tmap = me_tmap_wall(oth_mptr);
else
_game_fr_tmap = _fdt_wmap;
if (me_clearsolid(_fdt_mptr) & solid_chk[which]) {
_fr_sdbg(STATS, _frp.stats.hitsolid++);
are_solid = 2;
} else {
oth_fo = face_obstruct[me_tiletype(oth_mptr)][(which + 2) & 3];
are_solid = (oth_fo == 0xff);
}
if (are_solid) // totally solid on other side, just do us, baby baby
{
_fr_sdbg(STATS, if ((me_clearsolid(_fdt_mptr) & solid_chk[which]) == 0) _frp.stats.setsolid++);
_me_clearsolid(_fdt_mptr) |= solid_chk[which];
// int walls doesnt know about parameters, so we lost
// if (_fdt_ttf->flags&FRFLRFLG_USEPR)
// {
fcnt = fr_get_ext_gap(&final_wall[0][0][0], _fdt_fo[which], _fdt_hgts,
(uchar *)mmask_facelet[me_bits_mirror(_fdt_mptr)]);
if (fcnt == 0) {
_me_clearsolid(_fdt_mptr) |= clear_chk[which];
_fr_sdbg(STATS, _frp.stats.setclear++);
} else
(*_fr_render_walls)(which, fcnt);
// }
// else
// _fr_terr_int_wall(FROUTERWALLS+which);
return;
}
_fr_sdbg(NO_RTF, return );
// otherwise, grind away
oth_hgts[FDT_PT_FLR] = me_height_flr(oth_mptr);
oth_hgts[FDT_PT_CEIL] = MAX_HGT - me_height_ceil(oth_mptr);
oth_hgts[FDT_PT_PARM] = me_param(oth_mptr);
ocnt = _fr_get_anti_gap(&outer_wall[0][0][0], oth_fo, oth_hgts, (uchar *)mmask_facelet[me_bits_mirror(oth_mptr)]);
if (ocnt != ANTI_RET_PUNTALL) {
useocnt = (ocnt & ANTI_MASK_COUNT);
if ((ocnt & ANTI_MASK_PUNTBOT) == 0) { // touch up the bottom edge
if (useocnt != last_ocnt) { // we want to store the ocnt we actually filled, not ended with
last_ocnt = useocnt;
outer_wall[useocnt][1][0] = outer_wall[useocnt][2][0] = fix_make(1, 0);
outer_wall[useocnt][0][0] = outer_wall[useocnt][2][1] = outer_wall[useocnt][3][0] =
outer_wall[useocnt][3][1] = 0;
}
useocnt++;
}
if ((ocnt & ANTI_MASK_PUNTTOP) == 0)
use_outer_wall = &outer_wall[0][0][0];
else {
use_outer_wall = &outer_wall[1][0][0];
useocnt--;
}
_fr_sdbg(SANITY, if (useocnt == 0) mprintf("_fr_parse_wall: have 0 usecnt, but didnt punt yet\n"));
_fr_sdbg(SANITY,
if (_fdt_fo[which] == 0xff) mprint("_fr_parse_wall: local fo==0xff, wallbits should have been 0"));
icnt = fr_get_ext_gap(&inner_wall[0][0][0], _fdt_fo[which], _fdt_hgts,
(uchar *)mmask_facelet[me_bits_mirror(_fdt_mptr)]);
fcnt = merge_walls(&final_wall[0][0][0], &inner_wall[0][0][0], icnt, use_outer_wall, useocnt);
if ((f_is_i) && (fcnt == icnt)) {
_fr_sdbg(STATS, _frp.stats.fisisolid++);
_me_clearsolid(_fdt_mptr) |= solid_chk[which];
}
(*_fr_render_walls)(which, fcnt);
#ifdef HACK_SHOW
{
int i;
mprintf("%d outer (%d) are:\n", useocnt, me_tiletype(oth_mptr));
for (i = 0; i < useocnt; i++)
hack_show(use_outer_wall + (i * 8));
mprintf("%d inner (%d) are:\n", icnt, me_tiletype(_fdt_mptr));
for (i = 0; i < icnt; i++)
hack_show(inner_wall[i]);
mprintf("%d final walls be:\n", fcnt);
for (i = 0; i < fcnt; i++)
hack_show(final_wall[i]);
}
#endif
} else
fcnt = 0;
if (fcnt == 0) {
_me_clearsolid(_fdt_mptr) |= clear_chk[which]; // or just shift here? who can tell
_fr_sdbg(STATS, _frp.stats.setclear++);
}
}
// take the mptr, decode it's clip vectors, and set initial wall masks for the tile
void parse_clip_tile() {}
// so, ahh, should have wall bits for floor and ceiling, so we can start clipping
#if _fr_defdbg(STATS)
#define wall_check(wmask1, wmask2, w_id) \
if ((_fdt_mask & wmask1) && (_fdt_ttw.wallbits & wmask2)) \
if ((me_clearsolid(_fdt_mptr) & wmask1) != 0) { \
_fr_sdbg(STATS, _frp.stats.hitclear++); \
} else if ((me_subclip(_fdt_mptr) & wmask1) != 0) { \
_fr_sdbg(STATS, _frp.stats.hitsc++); \
} else \
_fr_parse_wall(w_id)
#else // do wacky shit to make this work
#define wall_check(wmask1, wmask2, w_id) \
if ((_fdt_mask & wmask1) && (_fdt_ttw.wallbits & wmask2) && ((me_clearsolid(_fdt_mptr) & wmask1) == 0) && \
((me_subclip(_fdt_mptr) & wmask1) == 0)) \
_fr_parse_wall(w_id)
#endif
#include "tilename.h"
// if you're so special, why aren't you dead
// implicit parameters are _fdt_x,_fdt_y,_fdt_mptr,_fdt_mask
void fr_draw_tile(void) {
if ((_fdt_tt = me_tiletype(_fdt_mptr)) == TILE_SOLID) // really, clip should deal
{
me_subclip_set(_fdt_mptr, SUBCLIP_OUT_OF_CONE); // sure, deal with it...
return; // so make this a warn later
}
if (me_subclip(_fdt_mptr) == SUBCLIP_OUT_OF_CONE) {
return;
}
_fr_ndbg(NO_SUB_CLIP, parse_clip_tile());
_fr_sdbg(SHOW_BASE, if (_fr_terr_prim) _fr_terr_base(0); else _fr_terr_dumb_base(0));
_fdt_ttw = tile_walls[_fdt_tt];
_fdt_ttf = &tile_floors[_fdt_tt];
_fdt_hgts[FDT_PT_FLR] = me_height_flr(_fdt_mptr);
_fdt_hgts[FDT_PT_CEIL] = MAX_HGT - me_height_ceil(_fdt_mptr);
_fdt_hgts[FDT_PT_PARM] = me_param(_fdt_mptr);
_fdt_hgts[FDT_PT_FPRM] = me_height_flr(_fdt_mptr) + me_param(_fdt_mptr);
_fdt_hgts[FDT_PT_CPRM] = MAX_HGT - me_height_ceil(_fdt_mptr) - me_param(_fdt_mptr);
_fdt_cur_parm = _fdt_fix_parm = _fr_fhgt_list[_fdt_hgts[FDT_PT_PARM]];
_fdt_fo = face_obstruct[_fdt_tt];
_fdt_wmap = me_tmap_wall(_fdt_mptr);
_fdt_me_flags = me_flags(_fdt_mptr);
_fdt_slock = _fr_fhgt_list[_fdt_me_flags & MAP_VLOCK_MASK] >> 8;
if (_frp.faces.cyber && _fdt_terr) {
int tmp = me_bits_flip(_fdt_mptr);
void fr_terr_cspace_pick(uchar do_w);
if (tmp != last_csp_fr)
fr_terr_cspace_pick(last_csp_fr = tmp);
}
// how about external walls, eh?
wall_check(FMK_NW, FRWALLNORTH, 0);
wall_check(FMK_EW, FRWALLEAST, 1);
wall_check(FMK_SW, FRWALLSOUTH, 2);
wall_check(FMK_WW, FRWALLWEST, 3);
_game_fr_tmap = _fdt_wmap;
_fdt_icnt = (_fdt_ttw.wallbits & FRWALLINT);
// set real flip for internal faces now
if (_fdt_icnt) {
flip_setup(4); // 4 is secret internal face code
switch (_fdt_icnt) {
#ifdef USE_OCT
case 6:
_fdt_cur_parm = FROCTNUM; // recompute wacky prm stuff
_fdt_hgts[FDT_PT_FPRM] = me_height_flr(_fdt_mptr) + me_param(_fdt_mptr);
// this cant be done yet
// _fdt_hgts[FDT_PT_CPRM]=MAX_HGT-me_height_ceil(_fdt_mptr)-me_param(_fdt_mptr);
// _fdt_hgts[FDT_PT_PARM]=me_param(_fdt_mptr);
_fr_terr_int_wall(_fdt_ttw.wallbase + 5); // or hmm.. a temp
case 5:
_fr_terr_int_wall(_fdt_ttw.wallbase + 4); // variable and then
case 4:
_fr_terr_int_wall(_fdt_ttw.wallbase + 3); // increment it in
case 3:
_fr_terr_int_wall(_fdt_ttw.wallbase + 2); // each case??
#endif
case 2:
_fr_terr_int_wall(_fdt_ttw.wallbase + 1);
case 1:
_fr_terr_int_wall(_fdt_ttw.wallbase + 0);
case 0:
break;
}
}
#ifdef USE_OCT // in case it was overloaded by FROCTNUM, not needed if no oct tiles
_fdt_cur_parm = _fdt_fix_parm;
#endif
_game_fr_tmap = me_tmap_flr(_fdt_mptr);
_fr_terr_flr();
_game_fr_tmap = me_tmap_ceil(_fdt_mptr);
_fr_terr_ceil();
// now check object cache
// FIXME HAX HAX HAX why does this segfault?
_fr_parse_obj();
#ifdef CLEAR_AS_WE_GO
me_subclip_set(_fdt_mptr, SUBCLIP_OUT_OF_CONE); // sure, deal with it...
#endif
// mprintf("-");
}
// when all the leaves have fallen and turned to dust
// will we remain entrenched within our ways
// indifference, the plague that moves throughout this land
#define FRT_PTS_POLY 1
#define FRT_PTS_TMAP 2
#define FRT_PTS_LITE 4
#define FRT_PTS_CYB 8
#define FRT_FLAT 0
#define FRT_LIT 1
#define FRT_TMAP 2
#define FRT_CSPACE 4
#define FRT_NULL 6
#define FRT_MAX_F 7
static void (*_fr_tabs_int_wall[FRT_MAX_F])(int wall_id) = {
_fr_flat_int_wall, _fr_flat_lit_int_wall, _fr_tmap_int_wall, _fr_tmap_lit_int_wall,
_fr_cspace_wire_int_wall, _fr_cspace_full_int_wall, _fr_null_int_wall};
static void (*_fr_tabs_ext_wall[FRT_MAX_F])(fix pt_list[4][2]) = {
_fr_flat_ext_wall, _fr_flat_lit_ext_wall, _fr_tmap_ext_wall, _fr_tmap_lit_ext_wall,
_fr_cspace_wire_ext_wall, _fr_cspace_full_ext_wall, _fr_null_ext_wall};
static void (*_fr_tabs_flr[FRT_MAX_F])(void) = {_fr_flat_flr, _fr_flat_lit_flr, _fr_tmap_flr,
_fr_tmap_lit_flr, _fr_cspace_wire_flr, _fr_cspace_full_flr,
_fr_null_flrceil};
static void (*_fr_tabs_ceil[FRT_MAX_F])(void) = {_fr_flat_ceil, _fr_flat_lit_ceil, _fr_tmap_ceil,
_fr_tmap_lit_ceil, _fr_cspace_wire_ceil, _fr_cspace_full_ceil,
_fr_null_flrceil};
#define CSPACE_WALLS
void fr_terr_cspace_pick(uchar do_wall) {
int to_do, wall_do;
if (do_wall) {
wall_do = to_do = FRT_CSPACE + 1; // FRT_FLAT
if (do_wall >= 2) {
if (_fr_curflags & FR_PICKUPM_MASK)
wall_do = FRT_NULL;
else
wall_do--;
}
} else {
if (_fr_curflags & FR_PICKUPM_MASK)
wall_do = to_do = FRT_NULL;
else
wall_do = to_do = FRT_CSPACE;
}
_fr_terr_int_wall = _fr_tabs_int_wall[wall_do];
_fr_terr_ext_wall = _fr_tabs_ext_wall[wall_do];
_fr_terr_ceil = _fr_tabs_ceil[to_do];
_fr_terr_flr = _fr_tabs_flr[to_do];
}
// setup the point revector
void fr_terr_frame_start(void) {
int wall_do, ceil_do, flr_do;
// cspace
if (_fr_curflags & FR_PICKUPM_MASK)
if (_frp.faces.cyber)
wall_do = ceil_do = flr_do = FRT_NULL;
else
wall_do = ceil_do = flr_do = FRT_FLAT;
else if (_frp.faces.cyber)
wall_do = ceil_do = flr_do = _frp.faces.cyber_full + FRT_CSPACE;
else { // realspace
int lmod = _frp_light_bits_any() ? 1 : 0;
wall_do = lmod + (((_frp.faces.main) && (_frp.faces.wall)) ? FRT_TMAP : 0);
ceil_do = lmod + (((_frp.faces.main) && (_frp.faces.ceiling)) ? FRT_TMAP : 0);
flr_do = lmod + (((_frp.faces.main) && (_frp.faces.floor)) ? FRT_TMAP : 0);
}
_fr_terr_int_wall = _fr_tabs_int_wall[wall_do];
_fr_terr_ext_wall = _fr_tabs_ext_wall[wall_do];
_fr_terr_ceil = _fr_tabs_ceil[ceil_do];
_fr_terr_flr = _fr_tabs_flr[flr_do];
_fr_parse_obj = render_parse_obj;
_fr_render_walls = _render_3d_walls;
// setup the tmp points for this frame
g3_alloc_list(FDT_TMPPTCNT, _fdt_tmppts);
last_csp_fr = 0; // initially no filled mode
_fdt_terr = TRUE;
}
void fr_terr_frame_end(void) {
void fr_tfunc_grab_start(void);
fr_tfunc_grab_start(); // set up the physics facelet indirections...
_fdt_terr = FALSE;
g3_free_list(FDT_TMPPTCNT, _fdt_tmppts);
}
#if _fr_defdbg(CURSOR)
// wrapped within the walkman with a halo of distortion
// aural contraceptive aborting pregnant conversation
void fr_set_cursor(int x, int y) {
_fr_cursorx = x;
_fr_cursory = y;
}
#endif
#define TF_DIRECT
#ifdef TF_DIRECT
#include "tfdirect.h"
#include "ss_flet.h"
// this is a direct render <-> tfunc connection
// ie. we dont accumulate and then send facelets, we just send as we go
// by calling the tfutil stuff, namely facelet_solve and so on
// thus we never build 3d surfaces, just distances and normals
// hopefully, this will cause things to, gasp, speed up
//#define AddTmapFlags(fl) if (_game_fr_tmap<10) fl|=SS_BCD_MISC_CLIMB
#define AddTmapFlags(fl) \
if (textprops[_game_fr_tmap].friction_climb) \
fl |= SS_BCD_MISC_CLIMB
uchar wall_pc[] = {SS_BCD_PRIM_NEG_Y | SS_BCD_TYPE_WALL, SS_BCD_PRIM_NEG_X | SS_BCD_TYPE_WALL,
SS_BCD_PRIM_YAXIS | SS_BCD_TYPE_WALL, SS_BCD_PRIM_XAXIS | SS_BCD_TYPE_WALL,
SS_BCD_PRIM_MULTI | SS_BCD_TYPE_WALL};
// secret gnosis becomes the order of the day
// we set up primary and transform the center point into our space
// then we just pass it on to facelet_solve, none the worse for wear...
static void _render_tfunc_walls(int which, int cnt) {
// fuck it, ext_walls are always ext, so punt generality, lets go
fix pt[3];
int pc = wall_pc[which];
switch (which) // set up localized point set
{ // NESW
case 0:
pt[2] = fix_1 - tf_loc_pt[1];
pt[0] = tf_loc_pt[0];
break;
case 1:
pt[2] = fix_1 - tf_loc_pt[0];
pt[0] = fix_1 - tf_loc_pt[1];
break;
case 2:
pt[2] = tf_loc_pt[1];
pt[0] = fix_1 - tf_loc_pt[0];
break;
case 3:
pt[2] = tf_loc_pt[0];
pt[0] = tf_loc_pt[1];
break;
}
pt[1] = tf_loc_pt[2];
AddTmapFlags(pc);
// if (pc&SS_BCD_MISC_CLIMB) mprintf("Set climbable... %x\n",pc);
switch (cnt) {
case 4:
tf_solve_aligned_face(pt, final_wall[3], pc, NULL);
case 3:
tf_solve_aligned_face(pt, final_wall[2], pc, NULL);
case 2:
tf_solve_aligned_face(pt, final_wall[1], pc, NULL);
case 1:
tf_solve_aligned_face(pt, final_wall[0], pc, NULL);
case 0:
break;
}
}
static void _fr_tfunc_diag_wall(int wall_id) {
fix pt[3], C;
int pfl;
switch (wall_id) {
case 0: // nw - se, normal to upper ne
diag_norms[0] = fix_inv_root2;
diag_norms[1] = fix_inv_root2;
C = tf_loc_pt[0] - tf_loc_pt[1];
pt[0] = (fix_1 - C) / 2;
pt[2] = tf_loc_pt[1] - pt[0];
break;
case 1: // sw - ne, normal to lower se
diag_norms[0] = fix_inv_root2;
diag_norms[1] = -fix_inv_root2;
C = tf_loc_pt[0] + tf_loc_pt[1];
pt[0] = C / 2;
pt[2] = pt[0] - tf_loc_pt[1];
break;
case 2: // ne - sw, normal to upper nw
diag_norms[0] = -fix_inv_root2;
diag_norms[1] = fix_inv_root2;
C = tf_loc_pt[0] + tf_loc_pt[1];
pt[0] = fix_1 - (C / 2);
pt[2] = tf_loc_pt[1] - (C / 2);
break;
case 3: // nw - se, normal to lower sw
diag_norms[0] = -fix_inv_root2;
diag_norms[1] = -fix_inv_root2;
C = tf_loc_pt[0] - tf_loc_pt[1];
pt[0] = (fix_1 - C) / 2;
pt[2] = pt[0] - tf_loc_pt[1];
break;
}
pt[1] = tf_loc_pt[2];
pfl = wall_pc[4] | TF_FLG_BOX_FULL;
AddTmapFlags(pfl);
tf_solve_remetriced_face(pt, tf_diag_walls, pfl, diag_norms, fix_inv_root2);
}
// hack this for now for diagonals
static void _fr_tfunc_int_wall(int wall_id) {
if ((_fdt_mask & FACELET_MASK_I) == 0)
return;
_fr_tfunc_diag_wall(wall_id);
}
int _fr_tfunc_flr_normal(fix *vec, int *lflg, int fnorm_entry) {
int rv;
if (me_bits_mirror_x(_fdt_mptr) == (MAP_FFLAT << MAP_MIRROR_SHF))
fnorm_entry = FRFNORM_VFULL;
else
fnorm_entry &= 0xf;
switch (fnorm_entry) {
case FRFNORM_VZERO:
case FRFNORM_VFULL:
*lflg |= SS_BCD_PRIM_ZAXIS | SS_BCD_TYPE_FLOOR;
return 0;
case FRFNORM_SLPS:
vec[0] = 0;
vec[1] = slope_norm[_fdt_hgts[FDT_PT_PARM]][2];
rv = 1;
break;
case FRFNORM_SLPW:
vec[0] = slope_norm[_fdt_hgts[FDT_PT_PARM]][2];
vec[1] = 0;
rv = 2;
break;
case FRFNORM_SLPN:
vec[0] = 0;
vec[1] = slope_norm[_fdt_hgts[FDT_PT_PARM]][0];
rv = 3;
break;
case FRFNORM_SLPE:
vec[0] = slope_norm[_fdt_hgts[FDT_PT_PARM]][0];
vec[1] = 0;
rv = 4;
break;
}
vec[2] = slope_norm[_fdt_hgts[FDT_PT_PARM]][1];
*lflg |= SS_BCD_PRIM_MULTI | SS_BCD_TYPE_FLOOR;
return rv;
}
int _fr_tfunc_ceil_normal(fix *vec, int *lflg, int fnorm_entry) {
int tmp = me_bits_mirror(_fdt_mptr), rv;
switch (tmp) {
case MAP_CFLAT:
fnorm_entry = FRFNORM_VFULL;
break;
case MAP_MIRROR:
fnorm_entry = fnorm_entry ^ 0x2; // fall through to the mask
case MAP_FFLAT:
case MAP_MATCH:
fnorm_entry &= 0xf;
}
switch (fnorm_entry) {
case FRFNORM_VZERO:
case FRFNORM_VZ_MIR:
case FRFNORM_VF_MIR:
case FRFNORM_VFULL:
*lflg |= SS_BCD_PRIM_NEG_Z | SS_BCD_TYPE_CEIL;
return 0;
case FRFNORM_SLPS:
vec[0] = 0;
vec[1] = slope_norm[_fdt_hgts[FDT_PT_PARM]][0];
rv = 1;
break;
case FRFNORM_SLPW:
vec[0] = slope_norm[_fdt_hgts[FDT_PT_PARM]][0];
vec[1] = 0;
rv = 2;
break;
case FRFNORM_SLPN:
vec[0] = 0;
vec[1] = slope_norm[_fdt_hgts[FDT_PT_PARM]][2];
rv = 3;
break;
case FRFNORM_SLPE:
vec[0] = slope_norm[_fdt_hgts[FDT_PT_PARM]][2];
vec[1] = 0;
rv = 4;
break;
}
vec[2] = -slope_norm[_fdt_hgts[FDT_PT_PARM]][1];
*lflg |= SS_BCD_PRIM_MULTI | SS_BCD_TYPE_CEIL;
return rv;
}
static fix _tfunc_real_floor[4][2] = {{0, fix_1}, {fix_1, fix_1}, {fix_1, 0}, {0, 0}};
static fix _tfunc_nrm[3], _tfunc_rpts[3];
static int _tfunc_flg;
int do_fc_trans(fix *xy, fix *sc, fix *vals) {
int rm = fix_div(fix_1, sc[0]);
vals[0] = fix_mul(xy[0], sc[0]) + fix_mul(xy[1], -sc[1]);
vals[1] = fix_mul(xy[0], sc[1]) + fix_mul(xy[1], sc[0]);
// mprintf("dft: from %x %x and %x %x stores %x %x, rm %x\n",xy[0],xy[1],sc[0],sc[1],vals[0],vals[1],rm);
return rm;
}
void do_floor_element(int nrm_mask) {
int code;
fix sc[2], xy[2];
_tfunc_flg = 0;
code = _fr_tfunc_flr_normal(_tfunc_nrm, &_tfunc_flg, nrm_mask & 0xf);
xy[1] = tf_loc_pt[2] - _fr_fhgt_list[_fdt_hgts[FDT_PT_FLR]];
switch (code) {
case 0:
*(g3s_vector *)_tfunc_rpts =
*(g3s_vector *)tf_loc_pt; // sub faster version? _memcpy32l(_tfunc_rpts,tf_loc_pt,3);
_tfunc_rpts[2] = xy[1];
_tfunc_real_floor[0][1] = _tfunc_real_floor[1][1] = fix_1;
tf_solve_aligned_face(_tfunc_rpts, _tfunc_real_floor, _tfunc_flg | TF_FLG_BOX_FULL, NULL);
return; // flat floor
case 1:
xy[0] = tf_loc_pt[1];
_tfunc_rpts[0] = tf_loc_pt[0];
sc[1] = _tfunc_nrm[1];
break; // N up (slpS) slope
case 2:
xy[0] = tf_loc_pt[0];
_tfunc_rpts[0] = fix_1 - tf_loc_pt[1];
sc[1] = _tfunc_nrm[0];
break; // E up slope
case 3:
xy[0] = fix_1 - tf_loc_pt[1];
_tfunc_rpts[0] = fix_1 - tf_loc_pt[0];
sc[1] = -_tfunc_nrm[1];
break; // S up slope
case 4:
xy[0] = fix_1 - tf_loc_pt[0];
_tfunc_rpts[0] = tf_loc_pt[1];
sc[1] = -_tfunc_nrm[0];
break; // W up slope
}
sc[0] = _tfunc_nrm[2];
_tfunc_real_floor[0][1] = _tfunc_real_floor[1][1] = do_fc_trans(xy, sc, &_tfunc_rpts[1]);
if (nrm_mask <= 0xf)
tf_solve_aligned_face(_tfunc_rpts, _tfunc_real_floor, _tfunc_flg | TF_FLG_BOX_FULL, _tfunc_nrm);
}
void do_ceil_element(int nrm_mask) {
int code;
fix sc[2], xy[2];
_tfunc_flg = 0;
code = _fr_tfunc_ceil_normal(_tfunc_nrm, &_tfunc_flg, nrm_mask & 0xf);
xy[1] = _fr_fhgt_list[_fdt_hgts[FDT_PT_CEIL]] - tf_loc_pt[2];
switch (code) {
case 0:
_tfunc_rpts[0] = tf_loc_pt[0];
_tfunc_rpts[1] = fix_1 - tf_loc_pt[1];
_tfunc_rpts[2] = xy[1];
_tfunc_real_floor[0][1] = _tfunc_real_floor[1][1] = fix_1;
tf_solve_aligned_face(_tfunc_rpts, _tfunc_real_floor, _tfunc_flg | TF_FLG_BOX_FULL, NULL);
return; // flat ceil
case 1:
xy[0] = fix_1 - tf_loc_pt[1];
_tfunc_rpts[0] = tf_loc_pt[0];
sc[1] = -_tfunc_nrm[1];
break; // N up (slpS) slope
case 2:
xy[0] = fix_1 - tf_loc_pt[0];
_tfunc_rpts[0] = fix_1 - tf_loc_pt[1];
sc[1] = -_tfunc_nrm[0];
break; // E up slope
case 3:
xy[0] = tf_loc_pt[1];
_tfunc_rpts[0] = fix_1 - tf_loc_pt[0];
sc[1] = _tfunc_nrm[1];
break; // S up slope
case 4:
xy[0] = tf_loc_pt[0];
_tfunc_rpts[0] = tf_loc_pt[1];
sc[1] = _tfunc_nrm[0];
break; // W up slope
}
sc[0] = -_tfunc_nrm[2];
_tfunc_real_floor[0][1] = _tfunc_real_floor[1][1] = do_fc_trans(xy, sc, &_tfunc_rpts[1]);
if (nrm_mask <= 0xf)
tf_solve_aligned_face(_tfunc_rpts, _tfunc_real_floor, _tfunc_flg | TF_FLG_BOX_FULL, _tfunc_nrm);
}
static void _fr_tfunc_flr(void) {
uchar nrm_mask = fr_fnorm_list[_fdt_tt];
int fcecnt;
if ((_fdt_mask & FACELET_MASK_F) == 0)
return;
fcecnt = _fdt_ttf->flags >> FRFLRSHF_2ELEM; // 0 or 1
// if ((_fdt_tt!=TILE_OPEN)&&(_fdt_tt!=TILE_SOLID))
// mprintf("BonusF %d (%d)..",nrm_mask,_fdt_tt);
if (fcecnt == 0)
do_floor_element(nrm_mask & 0xf);
else {
int tmp = me_bits_mirror(_fdt_mptr);
uchar icky = (_fdt_tt >= TILE_SLOPECV_NW);
if (tmp == MAP_FFLAT)
do_floor_element(FRFNORM_VFULL);
else if (icky) {
do_floor_element(0xf0 | (nrm_mask & 0xf)); // now make it 3pt...
_tfunc_real_floor[1][0] = 0;
tf_solve_aligned_face(_tfunc_rpts, &_tfunc_real_floor[1], _tfunc_flg | TF_FLG_3PNT_MASK, _tfunc_nrm);
_tfunc_real_floor[1][0] = fix_1;
do_floor_element(0xf0 | (nrm_mask >> 4)); // and so on...
tf_solve_aligned_face(_tfunc_rpts, &_tfunc_real_floor[1], _tfunc_flg | TF_FLG_3PNT_MASK, _tfunc_nrm);
} else {
do_floor_element(nrm_mask & 0xf);
do_floor_element(nrm_mask >> 4);
}
}
}
static void _fr_tfunc_ceil(void) {
uchar nrm_mask = fr_fnorm_list[_fdt_tt];
int fcecnt;
if ((_fdt_mask & FACELET_MASK_C) == 0)
return;
if (_fdt_ttf->flags & FRFLRFLG_NOTOP)
return;
fcecnt = _fdt_ttf->flags >> FRFLRSHF_2ELEM; // 0 or 1
// if ((_fdt_tt!=TILE_OPEN)&&(_fdt_tt!=TILE_SOLID))
// mprintf("BonusC %d (%d)..",nrm_mask,_fdt_tt);
if (fcecnt == 0)
do_ceil_element(nrm_mask);
else {
int tmp = me_bits_mirror(_fdt_mptr);
uchar icky = (_fdt_tt < TILE_SLOPECV_NW), hard;
if (tmp == MAP_CFLAT)
hard = 0;
else if (tmp == MAP_MIRROR)
hard = !icky;
else
hard = icky;
if (hard) { // broken, depends on icky
do_ceil_element(0xf0 | (nrm_mask & 0xf));
tf_solve_aligned_face(_tfunc_rpts, _tfunc_real_floor, _tfunc_flg | TF_FLG_3PNT_MASK, _tfunc_nrm);
do_ceil_element(0xf0 | (nrm_mask >> 4));
_tfunc_real_floor[2][0] = 0;
tf_solve_aligned_face(_tfunc_rpts, _tfunc_real_floor, _tfunc_flg | TF_FLG_3PNT_MASK, _tfunc_nrm);
_tfunc_real_floor[2][0] = fix_1;
} else {
do_ceil_element(nrm_mask & 0xf);
do_ceil_element(nrm_mask >> 4);
}
}
}
// check for terrain objects
static void _fr_tfunc_obj(void) { facelet_parse_obj(); }
void fr_tfunc_grab_start(void) {
_fr_terr_int_wall = _fr_tfunc_int_wall;
_fr_terr_ceil = _fr_tfunc_ceil;
_fr_terr_flr = _fr_tfunc_flr;
_fr_parse_obj = _fr_tfunc_obj;
_fr_render_walls = _render_tfunc_walls;
}
void fr_tfunc_grab_fast(int mask) {
me_subclip_set(_fdt_mptr, SUBCLIP_FULL_TILE);
_fdt_mask = mask;
fr_draw_tile();
// me_subclip_set(_fdt_mptr,SUBCLIP_OUT_OF_CONE);
}
#endif // TFUNC_SUPPORT
#ifdef WHOSE_MUMP
// add to everything.... arrrrgghgh
#ifndef SHIP
#define CheckRendWallBt(btid) ((me_bits_rend4(c_t) & btid) == 0)
#define CheckRendOthBt(btid) ((me_bits_rend3(c_t) & btid) == 0)
#else
#define CheckRendWallBt(btid) (TRUE)
#define CheckRendOthBt(btid) (TRUE)
#endif
#endif
//==============================================================================
// Edge-finding routines.
//==============================================================================
uchar edge_get_fandc(MapElem *mp, int c_edge, char *e_list);
#define EDGE_GET
#include "fredge.h"
#ifdef EDGE_GET
uchar edge_get_fandc(MapElem *mp, int c_edge, char *e_list) {
uchar *mmptr, fo, p = me_param(mp), in_fo;
in_fo = face_obstruct[me_tiletype(mp)][c_edge];
if ((me_tiletype(mp) == TILE_SOLID) || (in_fo == 0xff)) {
e_list[0] = e_list[1] = MAX_HGT;
e_list[2] = e_list[3] = MAX_HGT;
return FALSE;
} else if (p == 0) {
e_list[0] = e_list[1] = me_height_flr(mp);
e_list[2] = e_list[3] = MAX_HGT - me_height_ceil(mp);
} else {
mmptr = (uchar *)mmask_facelet[me_bits_mirror(mp)];
e_list[0] = e_list[1] = me_height_flr(mp);
fo = (in_fo ^ mmptr[0]) & mmptr[1];
if (fo & FO_L_PARM)
e_list[0] += p;
if (fo & FO_R_PARM)
e_list[1] += p;
e_list[2] = e_list[3] = MAX_HGT - me_height_ceil(mp);
fo = (in_fo ^ mmptr[2]) & mmptr[3];
if (fo & FO_L_PARM)
e_list[2] -= p;
if (fo & FO_R_PARM)
e_list[3] -= p;
}
return TRUE;
}
char edge_vals[3];
// returns left and right heights for a map edge
// ceil_p is 1 if it is the ceiling you care about
char *map_get_edge(void *omp, int edge, int ceil_p) {
uchar *mmptr, fo, p, in_fo;
MapElem *mp = (MapElem *)omp;
p = me_param(mp);
in_fo = face_obstruct[me_tiletype(mp)][edge];
if (p == 0) {
if (ceil_p)
edge_vals[0] = edge_vals[1] = MAX_HGT - me_height_ceil(mp);
else
edge_vals[0] = edge_vals[1] = me_height_flr(mp);
} else {
mmptr = (uchar *)mmask_facelet[me_bits_mirror(mp)];
if (ceil_p) {
edge_vals[0] = edge_vals[1] = MAX_HGT - me_height_ceil(mp);
fo = (in_fo ^ mmptr[2]) & mmptr[3];
p = -p;
} else {
edge_vals[0] = edge_vals[1] = me_height_flr(mp);
fo = (in_fo ^ mmptr[0]) & mmptr[1];
}
if (fo & FO_L_PARM)
edge_vals[0] += p;
if (fo & FO_R_PARM)
edge_vals[1] += p;
}
return edge_vals;
}
// 0 and 1 will be ceiling, 2 and 3 will be floor for internal, +4 for other
// this is a really dumb way to a do this, really
// returns 0 if no edge space, 1 for flat, 2 for mini-step, 3 for step
// 4 for ledge, 5 for cliff
int get_edge_code(void *omp, int edge) {
char edge_list[8], d_list[4], x_diff[4];
char el, el2, max_df[2], min_dc[2], gap[2];
MapElem *mp = (MapElem *)omp, *oth_mp = mp + wall_adds[edge];
// get the real data, if no internal edge we go home and punt...
if (!edge_get_fandc(mp, edge, &edge_list[0])) {
edge_vals[0] = edge_vals[1] = edge_vals[2] = 0;
return MEDGE_NO_TILE;
}
edge_get_fandc(oth_mp, (edge + 2) & 3, &edge_list[4]);
for (el = el2 = 0; el < 4; el += 2, el2 += 4) {
x_diff[el + 0] = edge_list[el + 5] - edge_list[el + 0]; // diff from us to it
x_diff[el + 1] = edge_list[el + 4] - edge_list[el + 1]; // fl,fr,cl,cr
d_list[el + 0] = edge_list[el2 + 2] - edge_list[el2 + 0]; // height diffs in square
d_list[el + 1] = edge_list[el2 + 3] - edge_list[el2 + 1]; // ourl,ourr,othl,othr
}
max_df[0] = lg_max(edge_list[5], edge_list[0]);
max_df[1] = lg_max(edge_list[4], edge_list[1]);
min_dc[0] = lg_min(edge_list[7], edge_list[2]);
min_dc[1] = lg_min(edge_list[6], edge_list[3]);
edge_vals[0] = gap[0] = min_dc[0] - max_df[0];
edge_vals[1] = gap[1] = min_dc[1] - max_df[1];
edge_vals[2] = (gap[0] + gap[1]) >> 1; // sure, average, not min or max
if ((gap[0] <= 0) && (gap[1] <= 0))
return MEDGE_NO_EGRESS;
else if ((x_diff[0] | x_diff[1]) == 0)
return MEDGE_FLAT_CASE; // should scale these based on zshf
else if ((abs(x_diff[0]) > 8) || (abs(x_diff[1]) > 8))
return MEDGE_CLIFF_THING;
else if ((abs(x_diff[0]) > 4) || (abs(x_diff[1]) > 4))
return MEDGE_LARGE_STEP;
else if ((abs(x_diff[0]) > 1) || (abs(x_diff[1]) > 1))
return MEDGE_SMALL_STEP;
return MEDGE_NO_TILE;
}
#endif