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Routines |
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The code for an object of type 1C, which is run by RunObjectHandler.
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| UpdateType1C | 9457 | LD A,(IX+$13) | Fetch the first state byte of the object. | |||||
| 945A | AND %00001111 | Keep the bottom four bits. | ||||||
| 945C | LD HL,$944C | Use the table at UpdateType13_Table. | ||||||
| 945F | CALL AddAToHL | Add the offset to the address. | ||||||
| 9462 | LD A,(HL) | Fetch the collision effects for this state. | ||||||
| 9463 | LD ($8E2C),A | Store them in 8E2C. | ||||||
| 9466 | LD A,(IX+$14) | Fetch the second state byte of the object. | ||||||
| 9469 | CP $02 | Is it two? | ||||||
| 946B | CALL Z,AccelerateObject | Move the object if so. | ||||||
| 946E | LD A,(IX+$13) | Fetch the first state byte of the object. | ||||||
| 9471 | AND %00001111 | Keep the bottom four bits. | ||||||
| 9473 | CP $08 | Is it eight? | ||||||
| 9475 | LD C,$2A | C=2A. | ||||||
| 9477 | JR Z,UpdateType1C_Finish | Jump to UpdateType1C_Finish if so. | ||||||
| 9479 | CP $09 | Jump to UpdateType1C_Finish if it is nine. | ||||||
| 947B | JR Z,UpdateType1C_Finish | |||||||
| 947D | CALL StepObjectState | Step the state of the object. | ||||||
| 9480 | LD C,$18 | C=18. | ||||||
| UpdateType1C_Finish | 9482 | LD B,$18 | B=18. | |||||
| 9484 | CALL MoveObjectAndStop | Move the object and stop it. | ||||||
| 9487 | DEC (IX+$15) | Count down the lifetime of the object. | ||||||
| 948A | JP NZ,UpdateType14_Flags | Jump to UpdateType14_Flags if it has not run out. | ||||||
| 948D | SET 3,(IX+$17) | Set bit 3 of the second set of flags of the object. | ||||||
| 9491 | JP UpdateType14_Flags | Jump to UpdateType14_Flags. | ||||||
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