ml
58 lines
2.4 KiB
Markdown
58 lines
2.4 KiB
Markdown
## Video Clips
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Video clips are made out of a sequence of standard [bitmaps](Bitmaps.md). The meta-information about a video clip
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is stored in resources of type ```0x04```. This information block refers to the resource that contains the frames, which
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is stored in the same resource file.
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Contrary to [MOVI Resources](moviResources.md), video clips contain only the frame information - nothing else.
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### Format
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**Video Clip Sequence Description** (16+5*N bytes)
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0000 int16 Width of video.
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0002 int16 Height of video.
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0004 int16 Resource ID of frames, referring to a compound resource
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0006 [6]byte Unknown. Always 0x00
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000C int16 Unknown. TriOp intro: 0x0001, 0x0000 otherwise
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000E N*[5]byte Sub-table of N sequence entries
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MMMM int16 Unknown. Always 0x010C
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**Video Clip Sequence Entry** (5 bytes)
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0000 byte Unknown. Always 0x04.
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0001 byte First frame
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0002 byte Last frame
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0003 int16 Frame time (in milliseconds)
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### Video Mails
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Video mails are small animated movies sent as mail during the game, all stored in ```vidmail.res```.
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A single video mail is split up in several sequences. Most notably, the TriOp intro is a reused sequence for all mails.
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The resource file contains 12 such sequences: Per sequence there is one resource of type ```0x04```
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and a corresponding bitmap resource (containing the frames in blocks).
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Video mails have a size of 200x100 pixel and are the same for the HD and CD releases. They share the palette of the
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game (```gamepal.res```).
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#### Hardcoded constants
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The classic engine has the following hardcoded constants:
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* There are 6 video mails, ordered as: "shield", "grove", "bridge", "laser", "explode", and "status"
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* "laser" has two sequences, "explode" has five sequences. The twelth sequence is the intro, having index 10, right before the status.
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* The first ID for the sequence descriptions is `0x0A4C`
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* The first ID for the sequence bitmaps is `0x0A40`
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> The engine always plays the intro first, then the requested video mail. The bundling of sequences (like for "explode") is hardcoded,
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> so if another video mail could either split itself up, or simply have only one frame (or none at all) at the end.
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### Cutscenes
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The files ```start1.res```, ```death.res``` and ```win1.res``` contain low-res variants of the corresponding
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cutscenes.
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The palettes for these cutscenes are stored in ```cutspal.res```.
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