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Routines |
| Prev: C56C | Up: Map | Next: C5BD |
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Used by the routine at PLAYER_LEGS.
While the player walks, jumps or is walking into a room, the legs step on through their four frames -- the low two bits of the graphic -- and the footstep sound (FOOTSTEP) counts, sounding every fourth step. When none of those applies the legs carry on stepping to frame 2, the standing pose, and stop there. Knight Lore's cycle is six frames with two standing poses, and it carries on to them in silence; here the steps to the standing pose count towards a footstep too.
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| HANDLE_FORWARD | C58D | LD A,(IX+$0C) | Walking into a room: step | |||||||
| C590 | AND $F0 | |||||||||
| C592 | JR NZ,HANDLE_FORWARD_0 | |||||||||
| C594 | BIT 3,(IX+$0C) | Jumping: step | ||||||||
| C598 | JR NZ,HANDLE_FORWARD_0 | |||||||||
| C59A | BIT 2,C | Walk not held: go to the standing pose | ||||||||
| C59C | JR Z,HANDLE_FORWARD_1 | |||||||||
| HANDLE_FORWARD_0 | C59E | LD A,(IX+$00) | The next frame of four, in the graphic's low two bits | |||||||
| C5A1 | LD E,A | |||||||||
| C5A2 | INC A | |||||||||
| C5A3 | AND $03 | |||||||||
| C5A5 | LD D,A | |||||||||
| C5A6 | LD A,E | |||||||||
| C5A7 | AND $FC | |||||||||
| C5A9 | OR D | |||||||||
| C5AA | LD (IX+$00),A | |||||||||
| C5AD | PUSH BC | The footstep count and sound, the controls kept | ||||||||
| C5AE | CALL FOOTSTEP | |||||||||
| C5B1 | POP BC | |||||||||
| C5B2 | RET | |||||||||
| HANDLE_FORWARD_1 | C5B3 | LD A,(IX+$00) | Frame 2 is the standing pose: done | |||||||
| C5B6 | AND $03 | |||||||||
| C5B8 | CP $02 | |||||||||
| C5BA | RET Z | |||||||||
| C5BB | JR HANDLE_FORWARD_0 | Otherwise step on towards it | ||||||||
| Prev: C56C | Up: Map | Next: C5BD |