Image Formats (Apocalypse) - Revision history

EsTeR: de-cat

2023-11-16T18:29:01Z

de-cat

← Older revision		Revision as of 18:29, 16 November 2023
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	=MOUSE.DAT=		=MOUSE.DAT=
	This file contains 9 images with a resolution of 24 x 24 pixels, using 8bpp with a palette index		This file contains 9 images with a resolution of 24 x 24 pixels, using 8bpp with a palette index

	~~[[Category:Game Files]]~~
	~~[[Category:Apocalypse]]~~

2015-06-20T18:50:04Z

Strategic map tiles

← Older revision		Revision as of 18:50, 20 June 2015
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	!Usage		!Usage
	\|- valign="top"		\|- valign="top"
	!0-2		!1-2
	!0x00-0x02		!0x00-0x02
	\|Pixel skip. If this is 0xFF FF, then stop rendering, you've hit the end of the sprite.You can calculate the Y coordinate for your row by taking value divided by 640.		\|Pixel skip. If this is 0xFF FF, then stop rendering, you've hit the end of the sprite.You can calculate the Y coordinate for your row by taking value divided by 640.
	\|- valign="top"		\|- valign="top"
	!2-4		!3-4
	!~~0x02~~-0x04		!0x03-0x04
	\|The number of visible pixels in a row (the others are transparent).		\|The number of visible pixels in a row (the others are transparent).
	\|- valign="top"		\|- valign="top"

2015-06-20T07:57:26Z

Strategic map tiles

← Older revision		Revision as of 07:57, 20 June 2015
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	!0-2		!0-2
	!0x00-0x02		!0x00-0x02
	\|Pixel ~~scip~~. If this is 0xFF FF, then stop rendering, you've hit the end of the sprite.You can calculate the Y coordinate for your row by taking value divided by 640.		\|Pixel skip. If this is 0xFF FF, then stop rendering, you've hit the end of the sprite.You can calculate the Y coordinate for your row by taking value divided by 640.
	\|- valign="top"		\|- valign="top"
	!2-4		!2-4

2015-06-20T07:56:53Z

Strategic map tiles

← Older revision		Revision as of 07:56, 20 June 2015
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	!0-2		!0-2
	!0x00-0x02		!0x00-0x02
	\|~~Coordinate y~~. If this is 0xFF FF, then stop rendering, you've hit the end of the sprite.You can calculate the Y coordinate for your row by taking value divided by 640.		\|Pixel scip. If this is 0xFF FF, then stop rendering, you've hit the end of the sprite.You can calculate the Y coordinate for your row by taking value divided by 640.
	\|- valign="top"		\|- valign="top"
	!2-4		!2-4

2015-06-20T07:52:49Z

Strategic map tiles

← Older revision		Revision as of 07:52, 20 June 2015
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	!0-2		!0-2
	!0x00-0x02		!0x00-0x02
	\|~~Amount of pixels to skip from coordinate~~ y. If this is 0xFF FF, then stop rendering, you've hit the end of the sprite.You can calculate the Y coordinate for your row by taking value divided by 640.		\|Coordinate y. If this is 0xFF FF, then stop rendering, you've hit the end of the sprite.You can calculate the Y coordinate for your row by taking value divided by 640.
	\|- valign="top"		\|- valign="top"
	!2-4		!2-4
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	\|-		\|-
	\|}		\|}


	=PCX=		=PCX=

2015-06-20T07:33:40Z

← Older revision		Revision as of 07:33, 20 June 2015
Line 247:		Line 247:
	!0-2		!0-2
	!0x00-0x02		!0x00-0x02
	\|Amount of pixels to skip from coordinate y. If this is 0xFF FF, then stop rendering, you've hit the end of the sprite.		\|Amount of pixels to skip from coordinate y. If this is 0xFF FF, then stop rendering, you've hit the end of the sprite.You can calculate the Y coordinate for your row by taking value divided by 640.
	\|You can calculate the Y coordinate for your row by taking value divided by 640.
	\|- valign="top"		\|- valign="top"
	!2-4		!2-4
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	\|- valign="top"		\|- valign="top"

			!5...
	!0x05 ...		!0x05 ...
	\|From this point, read the amount of pixels specified by 3 and 4 byte of header and render then left to right on the display. Palette Index 0 is transparent		\|From this point, read the amount of pixels specified by 3 and 4 byte of header and render then left to right on the display. Palette Index 0 is transparent.
	\|-		\|-
	\|}		\|}

2015-06-20T07:29:14Z

← Older revision		Revision as of 07:29, 20 June 2015
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	I do not know where the colour for the pixel is selected, maybe always black?		I do not know where the colour for the pixel is selected, maybe always black?

			==Strategic map tiles==
			These images are always 8x8 pixel format, they used to draw strategic maps:

			{\| class="wikitable"
			\|-
			!Offset<br>(Decimal)
			!Offset<br>(Hex)
			!Usage
			\|- valign="top"
			!0-2
			!0x00-0x02
			\|Amount of pixels to skip from coordinate y. If this is 0xFF FF, then stop rendering, you've hit the end of the sprite.
			\|You can calculate the Y coordinate for your row by taking value divided by 640.
			\|- valign="top"
			!2-4
			!0x02-0x04
			\|The number of visible pixels in a row (the others are transparent).
			\|- valign="top"

			!0x05 ...
			\|From this point, read the amount of pixels specified by 3 and 4 byte of header and render then left to right on the display. Palette Index 0 is transparent
			\|-
			\|}


	=PCX=		=PCX=

2015-06-07T20:20:20Z

← Older revision		Revision as of 20:20, 7 June 2015
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	!0		!0
	!0x00		!0x00
	\|Repeat count - the number of repeated 4-pixel units - if 0xFF (255) stop as you've reached the end of the image. ~~Ignore the highest bit (Possibly a flag to say 'next line?')~~		\|Repeat count - the number of repeated 4-pixel units - if 0xFF (255) stop as you've reached the end of the image.
	\|- valign="top"		\|- valign="top"
	!1		!1

2015-06-07T20:17:15Z

← Older revision		Revision as of 20:17, 7 June 2015
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	\|}		\|}

	~~NOTE:~~ The stride of ~~the~~ images always seems to be ~~128~~ - IE each row contains ~~128~~ total pixel values ~~(or 32 table indices)~~, but only the width specified in the header are actually drawn.		The stride of these images always seems to be 640 pixels (140 4-pixel units) - IE each row contains 640 total pixel values, but only the width specified in the header are actually drawn.

	The lookup table looks like this:		The lookup table looks like this:

2015-04-23T20:49:59Z

Add comment of how shadow sprites may not follow the same 'compression mode' format

← Older revision		Revision as of 20:49, 23 April 2015
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	\|}		\|}

			==Shadow sprites==
	==~~Compression mode: 128~~==
	These files contain a transparent 'dither' mask to render shadows etc.		These files contain a transparent 'dither' mask to render shadows etc.
	NOTE - not ~~all these files~~ have the first ~~byte as~~ '~~128~~' - for example 'tacdata/aliens/alien/poppers.pck (popper shadows) is this format with the first two bytes as '0x00 0x6e'. Which files are in this format may be 'baked in' to the executable, or it's a 'none of the above' clause		NOTE - These files do not seem to have the same first two bytes so that cannot be used solely to decide which 'compression format' each file is encoded with - for example 'tacdata/aliens/alien/poppers.pck (popper shadows) is this format with the first two bytes as '0x00 0x6e'. Which files are in this format may be 'baked in' to the executable, or it's a 'none of the above' clause.

	It starts with an 8 byte header		It starts with an 8 byte header