Editing Doom v0.4
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* The [[COLORMAP]] has still only 32 levels and the [[PLAYPAL]] only one, as in [[Doom v0.2|the previous alpha]]. Compared to the 0.2 palette, color ranges 3-8, 160-231 and 240-247 are changed to their final version. The remaining non-final colors (9-15, 232-239, 248 and 249) are replaced by pure white. | * The [[COLORMAP]] has still only 32 levels and the [[PLAYPAL]] only one, as in [[Doom v0.2|the previous alpha]]. Compared to the 0.2 palette, color ranges 3-8, 160-231 and 240-247 are changed to their final version. The remaining non-final colors (9-15, 232-239, 248 and 249) are replaced by pure white. | ||
* VIEWINFO and HIGHBLIT have been removed. | * VIEWINFO and HIGHBLIT have been removed. | ||
− | * Two new lumps have appeared, COLORS12 and COLORS15. They are both 16384 | + | * Two new lumps have appeared, COLORS12 and COLORS15. They are both 16384-byte long. COLORS12 is not referenced in the exe, and not used. |
* Another new lump is HUFONT. | * Another new lump is HUFONT. | ||
− | * The [[ENDOOM]] screen makes | + | * The [[ENDOOM]] screen makes it first appearance. A similar ANSI text screen named DOOMERR is added. |
* The engine now supports multiple maps. They must all be within M_START and M_END markers, and their name is given by a marker lump used as a header. The map format is completely different from both the previous and the final versions. | * The engine now supports multiple maps. They must all be within M_START and M_END markers, and their name is given by a marker lump used as a header. The map format is completely different from both the previous and the final versions. | ||
− | * The [[PNAMES]] and [[TEXTURE1 and TEXTURE2|TEXTURES]] lumps makes their appearance. In this version, the textures have no | + | * The [[PNAMES]] and [[TEXTURE1 and TEXTURE2|TEXTURES]] lumps makes their appearance. In this version, the textures have no name and are presumably referred to by their index. |
* The picture format of raw images with a header is abandoned, instead two new image formats make their entrance. The first (called "snea" by [[DeuTex]]) is an interleaved bitmap format where the width is always a multiple of four. The second is a raw 10x12 image used for the GNUM0 to GNUM9 lumps. The interface graphics (between L_START and L_END markers) are either in this "gnum" format, sneas, or the alpha [[picture format]]. | * The picture format of raw images with a header is abandoned, instead two new image formats make their entrance. The first (called "snea" by [[DeuTex]]) is an interleaved bitmap format where the width is always a multiple of four. The second is a raw 10x12 image used for the GNUM0 to GNUM9 lumps. The interface graphics (between L_START and L_END markers) are either in this "gnum" format, sneas, or the alpha [[picture format]]. | ||
* The rendering engine does not repeat textures on any given line, only the rightmost pixels of the texture will be repeated indefinitely until the line ends. Due to this limitation many of the textures are uncharacteristically wide. | * The rendering engine does not repeat textures on any given line, only the rightmost pixels of the texture will be repeated indefinitely until the line ends. Due to this limitation many of the textures are uncharacteristically wide. |