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Difference between revisions of "SCUMM/Technical Reference/Charset resources"

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Character sets define the fonts used by SCUMM to draw text, such as dialogue, on the screen.
Character sets define the fonts used by SCUMM to draw text, such as dialogue, on the screen.


 
== SCUMM V1 and V2 ==
== The old charset format: V1-V3 ==
 
=== V1/V2 charset format ===


The V1 and V2 font format is identical to that found in V3 games; the big difference is that in V1 and V2, the font is not stored in the game data files, but rather is hardcoded into the executable.
The V1 and V2 font format is identical to that found in V3 games; the big difference is that in V1 and V2, the font is not stored in the game data files, but rather is hardcoded into the executable.
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Another minor difference compared to the V3 format is that all characters are exactly 8x8 pixels big. Thus the font is always monospaced, unlike V3 fonts.
Another minor difference compared to the V3 format is that all characters are exactly 8x8 pixels big. Thus the font is always monospaced, unlike V3 fonts.


=== V3 charset format ===
== SCUMM V3 ==


The header looks as follows:
The header looks as follows:
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After this header the character data starts. Every character in the charset takes up exactly 8 bytes, representing 8x8 pixels in which the actual character is contained (the actual width and height of the char should be computed from the charset header).
After this header the character data starts. Every character in the charset takes up exactly 8 bytes, representing 8x8 pixels in which the actual character is contained (the actual width and height of the char should be computed from the charset header).


== The new charset format: V4-V6 ==
== SCUMM V4 ==
 
=== V4 charset format ===


The header looks as follows:
The header looks as follows:
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</pre>
</pre>


=== V5/V6 charset format ===
== SCUMM V5 and V6 ==


Like all other resources in V5 and later, the charset data is stored in a chunk, in this case a 'CHAR' chunk. The header looks as follows:
Like all other resources in V5 and later, the charset data is stored in a chunk, in this case a 'CHAR' chunk. The header looks as follows:
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Observe that this header is identical to the V4 header with a few bytes added to the start of it. The charset format is otherwise identical to the V4 format described above.
Observe that this header is identical to the V4 header with a few bytes added to the start of it. The charset format is otherwise identical to the V4 format described above.


== The modern charset format: V7-V8 ==
== SCUMM V7 and V8 ==


=== NUT (V7 & V8) charset format ===
=== NUT (V7 & V8) charset format ===
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