Routines
Prev: 6C53 Up: Map Next: 6CE1
6CC7: Get Leaf Sprite
Used by the routine at UpdateLeaf.
Finds the sprite for the frame of a leaf. There are four frames for a leaf on the right and four for a leaf on the left.
Input
IX Leaf object
Output
DE Sprite data
GetLeafSprite 6CC7 LD A,(IX+$00) A=the state of the leaf.
6CCA RRCA Rotate bit 6 round to bit 3.
6CCB RRCA
6CCC RRCA
6CCD AND %00001000 Keep only bit 3.
6CCF LD C,A C=08 if the leaf is on the left, or 00 if not.
6CD0 LD A,(IX+$06) A=the frame of the leaf.
6CD3 SLA A Double the frame to make an offset into the table.
6CD5 OR C Add the offset for the side of the flower.
6CD6 LD HL,$6CE1 HL=LeafSpriteTable.
This entry point is used by the routine at GetFlowerSprite.
GetSpriteFromTable 6CD9 LD C,A C=the offset.
6CDA LD B,$00 B=00.
6CDC ADD HL,BC Add the offset to HL.
6CDD LD E,(HL) E=the low byte of the sprite address.
6CDE INC HL Move onto the high byte.
6CDF LD D,(HL) D=the high byte of the sprite address.
6CE0 RET Return.
Prev: 6C53 Up: Map Next: 6CE1