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Get_Position_After_Move: ; entity (whatever alignement) in HL, direction to test in A, X Result in C, Y result in B
PUSH HL
PUSH AF
LD A, L
AND $f8
LD L, A
INC HL
LD A, (HL+)
LD C, A
LD A, (HL+)
LD B, A
POP AF
BIT 3, A
JR Z, =Get_Position_After_Move.direction_end
PUSH BC
DEC A
LD B, A
SLA A
AND $02
DEC A
BIT 1, B
JR NZ, =Get_Position_After_Move.vertical
Get_Position_After_Move.horizontal:
POP BC
ADD C
LD C, A
JR =Get_Position_After_Move.direction_end
Get_Position_After_Move.vertical:
POP BC
ADD B
LD B, A
Get_Position_After_Move.direction_end:
POP HL
RET
.MACRODEF ADD_A_TO_DIRECTION_BC ; Direction in D, XY in BC (muted), offset in A
PUSH AF
LD A, D
AND $07
CP $enum_direction_down
JR Z, =$down
CP $enum_direction_right
JR Z, =$right
CP $enum_direction_up
JR Z, =$up
$left:
POP AF
XOR $ff
INC A
ADD B
LD B, A
JR =$end
$right:
POP AF
ADD B
LD B, A
JR =$end
$up:
POP AF
XOR $ff
INC A
ADD C
LD C, A
JR =$end
$down:
POP AF
ADD C
LD C, A
$end:
.END
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