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Routines |
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The handler for the monster (IDs 24 and 25), which pops up out of one of the dustbins at the bottom of the screen (it is created by CreateMonster). Byte 06 of the actor is its state, which chooses which code at HandleMonster_Rising is run using the table at MonsterStates. If a flour shot hits the monster it is coloured white (see TestFlourCollision), the points are added to the score, and it goes straight to the state in which it drops back into the dustbin.
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| HandleMonster | 6607 | LD HL,$5F1B | Point HL at the number of actors in play (ActorsInPlay). | |||||
| 660A | INC (HL) | Increase it by one. | ||||||
| 660B | CALL StoreEntity | Record the position of the sprite using StoreEntity. | ||||||
| 660E | LD A,(IX+$03) | Fetch the colour of the monster. | ||||||
| 6611 | CP $47 | Jump to HandleMonster_State if it has been hit already. | ||||||
| 6613 | JR Z,HandleMonster_State | |||||||
| 6615 | CALL TestFlourCollision | Test whether a flour shot has hit the actor using TestFlourCollision. | ||||||
| 6618 | BIT 7,(IX+$00) | Jump to HandleMonster_State if the monster has not been hit by the flour shot (is bit 7 of the actor ID set). | ||||||
| 661C | JR Z,HandleMonster_State | |||||||
| 661E | LD (IX+$06),$02 | Write 02 to the state of the monster, so that it drops back into the dustbin. | ||||||
| 6622 | LD BC,$0125 | Set the points for hitting the monster (0125 in BCD). | ||||||
| 6625 | CALL AddPointsToScore | Add the points to the score using AddPointsToScore. | ||||||
| HandleMonster_State | 6628 | LD HL,$6631 | Point HL at the table of monster states. | |||||
| 662B | LD A,(IX+$06) | Fetch the state of the monster. | ||||||
| 662E | JP MainLoop_Dispatch | Jump to MainLoop_Dispatch to run the code for the state. | ||||||
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