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Routines |
| Prev: C235 | Up: Map | Next: C25E |
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Used by the routine at HandlePlayerLegs.
Makes the player jump if the jump control is pressed. The player cannot jump while entering a room, while already jumping, or while falling quickly.
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Return unless a jump is allowed.
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| HandleJump | C23D | BIT 3,C | Return if the jump control is not pressed. | |||||||
| C23F | RET Z | |||||||||
| C240 | LD A,(IX+$0C) | Fetch the collision flags. | ||||||||
| C243 | AND %11110000 | Keep only bits 4-7. | ||||||||
| C245 | RET NZ | Return if the player is entering the room. | ||||||||
| C246 | BIT 3,(IX+$0C) | Return if the player is already jumping. | ||||||||
| C24A | RET NZ | |||||||||
| C24B | LD A,(IX+$0B) | Fetch the speed along the z axis. | ||||||||
| C24E | INC A | Increment A. | ||||||||
| C24F | RET M | Return if the sign flag is set. | ||||||||
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Start the jump.
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| C250 | SET 3,(IX+$0C) | Flag the player as jumping. | ||||||||
| C254 | LD (IX+$0B),$08 | Set the speed along the z axis to 08. | ||||||||
| C258 | PUSH BC | Stash BC on the stack. | ||||||||
| C259 | CALL PlayJumpSound | Call PlayJumpSound. | ||||||||
| C25C | POP BC | Restore BC from the stack. | ||||||||
| C25D | RET | Return. | ||||||||
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View the equivalent code in;
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| Prev: C235 | Up: Map | Next: C25E |