ml
95 lines
3.6 KiB
Go
95 lines
3.6 KiB
Go
package level
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import (
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"bytes"
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"math/bits"
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"github.com/inkyblackness/hacked/ss1/content/archive/level/lvlids"
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"github.com/inkyblackness/hacked/ss1/content/object"
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"github.com/inkyblackness/hacked/ss1/serial"
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)
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// EmptyLevelParameters contain the values to create an empty level.
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type EmptyLevelParameters struct {
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// XSize specifies the expected width, in tiles. 0 (or less) will default.
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XSize int32
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// YSize specifies the expected height, in tiles. 0 (or less) will default.
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YSize int32
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// Cyberspace indicates whether the level should be marked as cyberspace.
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Cyberspace bool
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// MapModifier is called to make initial changes to the map before serializing.
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// This can be used to empty out starter tile on starter level.
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MapModifier func(x, y int, entry *TileMapEntry)
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}
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// EmptyLevelData returns an array of serialized data for an empty level.
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func EmptyLevelData(param EmptyLevelParameters) [lvlids.PerLevel][]byte {
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var levelData [lvlids.PerLevel][]byte
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baseInfo := DefaultBaseInfo(param.Cyberspace)
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if param.XSize > 0 {
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baseInfo.XSize = param.XSize
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baseInfo.XShift = int32(bits.Len32(uint32(param.XSize)))
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if (1 << (baseInfo.XShift - 1)) == baseInfo.XSize {
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baseInfo.XShift--
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}
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}
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if param.YSize > 0 {
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baseInfo.YSize = param.YSize
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baseInfo.YShift = int32(bits.Len32(uint32(param.YSize)))
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if (1 << (baseInfo.YShift - 1)) == baseInfo.YSize {
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baseInfo.YShift--
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}
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}
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levelData[lvlids.MapVersionNumber] = encode(mapVersionValue)
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levelData[lvlids.ObjectVersionNumber] = encode(objectVersionValue)
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levelData[lvlids.Information] = encode(&baseInfo)
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tileMap := NewTileMap(1<<baseInfo.XShift, 1<<baseInfo.YShift)
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if param.MapModifier != nil {
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for y := 0; y < int(baseInfo.YSize); y++ {
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for x := 0; x < int(baseInfo.XSize); x++ {
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param.MapModifier(x, y, tileMap.Tile(TilePosition{X: byte(x), Y: byte(y)}, int(baseInfo.XShift)))
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}
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}
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}
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levelData[lvlids.TileMap] = encode(tileMap)
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levelData[lvlids.Schedules] = encode(make([]byte, baseInfo.Scheduler.ElementSize*1))
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levelData[lvlids.TextureAtlas] = encode(make(TextureAtlas, DefaultTextureAtlasSize))
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levelData[lvlids.ObjectMainTable] = encode(DefaultObjectMainTable())
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levelData[lvlids.ObjectCrossRefTable] = encode(DefaultObjectCrossReferenceTable())
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for class := object.Class(0); class < object.ClassCount; class++ {
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levelData[lvlids.ObjectClassTablesStart+int(class)] = encode(DefaultObjectClassTable(class))
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levelData[lvlids.ObjectDefaultTablesStart+int(class)] = encode(NewObjectClassEntry(ObjectClassInfoFor(class).DataSize))
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}
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levelData[lvlids.SavefileVersion] = encode(savefileVersionValue)
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levelData[lvlids.Unused41] = encode(UnknownL41{})
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levelData[lvlids.TextureAnimations] = encode([TextureAnimationCount]TextureAnimationEntry{})
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levelData[lvlids.SurveillanceSources] = encode(make([]ObjectID, SurveillanceObjectCount))
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levelData[lvlids.SurveillanceSurrogates] = encode(make([]ObjectID, SurveillanceObjectCount))
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levelData[lvlids.Parameters] = encode(DefaultParameters())
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levelData[lvlids.MapNotes] = encode(make([]byte, MapNotesSize))
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levelData[lvlids.MapNotesPointer] = encode(MapNotesPointer(0))
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levelData[lvlids.Unknown48] = encode(UnknownL48{})
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levelData[lvlids.Unknown49] = encode(UnknownL49{})
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levelData[lvlids.Unknown50] = encode(UnknownL50{})
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levelData[lvlids.LoopConfiguration] = encode(make([]byte, LoopConfigEntrySize*LoopConfigEntryCount))
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levelData[lvlids.Unknown52] = encode(UnknownL52{})
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levelData[lvlids.HeightSemaphores] = encode(HeightSemaphores{})
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return levelData
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}
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func encode(data interface{}) []byte {
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buf := bytes.NewBuffer(nil)
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encoder := serial.NewEncoder(buf)
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encoder.Code(data)
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return buf.Bytes()
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}
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