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Routines |
| Prev: D036 | Up: Map | Next: D06C |
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Used by the routine at Update_Vat.
When the vat entity is not type 0C, test game-event / direction bits and either copy the Data_CrusherEntityTemplate template into the crusher slot or randomly set direction bit 00.
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Load game-event flags and test direction bit 00.
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| Update_Vat_TestEventAndDirBit0 | D040 | LD A,($72B3) | Load A with the game event flags (GameEventFlags). | |
| D043 | BIT 0,(IX+$09) | Is bit 00 of the current entity's direction / state set?. | ||
| D047 | JR Z,Update_Vat_RandomSetDirBit0 | If not, jump to Update_Vat_RandomSetDirBit0. | ||
| D049 | BIT 1,A | Is bit 01 of A set?. | ||
| D04B | RET Z | If not, return. | ||
| D04C | LD DE,$8FC9 | Point DE at the crusher entity (StateData_Complex_16). | ||
| D04F | LD HL,$D036 | Point HL at the vat template (Data_CrusherEntityTemplate). | ||
| D052 | LD BC,$000A | Load BC with length 000A. | ||
| D055 | LDIR | Copy the template into the crusher entity slot. | ||
| D057 | LD HL,$CF88 | Point HL at DruttScript_Copy. | ||
| D05A | JP ScriptInstruction | Jump to ScriptInstruction to execute the script instruction at HL. | ||
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Randomly set direction bit 00 when bit 01 of A is clear.
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| Update_Vat_RandomSetDirBit0 | D05D | BIT 1,A | Is bit 01 of A set?. | |
| D05F | RET NZ | If so, return. | ||
| D060 | LD A,$3C | Load A with 3C. | ||
| D062 | CALL PseudoRandom | Call PseudoRandom to pick a pseudo-random value. | ||
| D065 | OR A | Is A zero?. | ||
| D066 | RET NZ | If not, return. | ||
| D067 | SET 0,(IX+$09) | Set bit 00 of the current entity's direction / state. | ||
| D06B | RET | Return. | ||
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