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Routines |
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Used by the routines at Handle_Jellyfish and Handle_Gargoyle.
Counts a jellyfish through the six steps of its animation. The type of the jellyfish gets the counter divided by two (so 00 01 or 02) in its low two bits, which gives three frames.
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| Animate_Jellyfish | B41F | CALL StoreEntity | Save the state of the jellyfish. | |||||
| B422 | INC (IX+$0E) | Increase the animation counter of the jellyfish. | ||||||
| B425 | LD A,(IX+$0E) | Fetch the animation counter of the jellyfish. | ||||||
| B428 | CP $06 | Jump to Animate_Jellyfish_Set_Type if the animation counter is less than 06. | ||||||
| B42A | JR C,Animate_Jellyfish_Set_Type | |||||||
| B42C | XOR A | Reset the animation counter. | ||||||
| B42D | LD (IX+$0E),A | |||||||
| Animate_Jellyfish_Set_Type | B430 | RRA | Divide the animation counter by two. | |||||
| B431 | AND %00000011 | Keep only the two low bits. | ||||||
| B433 | LD C,A | Keep the frame in C. | ||||||
| B434 | LD A,(IX+$00) | Fetch the type of the jellyfish. | ||||||
| B437 | AND %11111100 | Reset the two low bits. | ||||||
| B439 | OR C | Combine the type with the frame. | ||||||
| B43A | LD (IX+$00),A | Store the type of the jellyfish. | ||||||
| B43D | RET | Return. | ||||||
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