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Difference between revisions of "SCUMM/Technical Reference/Script resources"
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SCUMM/Technical Reference/Script resources (view source)
Revision as of 05:42, 24 April 2007
, 05:42, 24 April 2007no edit summary
(Put object code for V3/4 into separate part) |
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Starting with Scumm V5, the blockname contains 4 bytes and the block size is BE including the 8 bytes for the header. Older games just have a 2 bytes blockname and the block size is in LE without the 6 bytes for the header. | Starting with Scumm V5, the blockname contains 4 bytes and the block size is BE including the 8 bytes for the header. Older games just have a 2 bytes blockname and the block size is in LE without the 6 bytes for the header. | ||
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= Global Scripts (SC or SCRP) = | == Global Scripts (SC or SCRP) == | ||
Global scripts are limited to 200 and stored in the '''LF''' or '''LFLF''' container. The id and the offset is stored in the ''directory of scripts'' in the game [[SCUMM/Index File|index file]]. | Global scripts are limited to 200 and stored in the '''LF''' or '''LFLF''' container. The id and the offset is stored in the ''directory of scripts'' in the game [[SCUMM/Index File|index file]]. | ||
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Script code variable | Script code variable | ||
= Local Scripts (LS or LSCR) = | == Local Scripts (LS or LSCR) == | ||
Local scripts are stored within a room. The first byte after the blockname contains the id of the script. IDs for local scripts always start at 200. | Local scripts are stored within a room. The first byte after the blockname contains the id of the script. IDs for local scripts always start at 200. | ||
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= Room Entry Scripts (EN or ENCD) = | == Room Entry Scripts (EN or ENCD) == | ||
This block contains special code when a room is entered. | This block contains special code when a room is entered. | ||
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= Room Exit Scripts (EX or EXCD) = | == Room Exit Scripts (EX or EXCD) == | ||
This block contains special code when the player leaves a room | This block contains special code when the player leaves a room | ||
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= Object Scripts V5+ (OBCD) = | == Object Scripts V5+ (OBCD) == | ||
These are scripts that correspond to VERB actions. VERBs are predefined activities at the bottom of the screen, e.g. "Open", "Look", "Give" etc. For each named object in a room, the game designer could define responses to the players actions. Starting with version 5, the whole code can be found in an [[Object resources|Object Resource]]. | These are scripts that correspond to VERB actions. VERBs are predefined activities at the bottom of the screen, e.g. "Open", "Look", "Give" etc. For each named object in a room, the game designer could define responses to the players actions. Starting with version 5, the whole code can be found in an [[Object resources|Object Resource]]. | ||
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= Object Scripts in V3/4 (OC) = | == Object Scripts in V3/4 (OC) == | ||
In Version 3 and 4 the code can be found in the '''OC''' block: | In Version 3 and 4 the code can be found in the '''OC''' block: | ||