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Copy pathUnit.asm
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Unit.asm
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include "Common.asm"
include "Video.asm"
;in: HL - xy, C - direct, B - hight
;out: B (0,1)
;chg: A, B
;bytes:
;ticks:
CAN_GO:
MOV A,L
ADD C
MOV L,A
LDA V_CUR_SCR
XRA L
ANI 11100000b
MOV C,B
MVI B,0
CPI 0
RNZ
;LDA V_CUR_SCR
;ORA L
;MOV L,A
MOV A,C
CPI 2
JZ CAN_GO_2
INR H
MOV A,M
CPI V_CAN_GO
RNC
DCR H
CAN_GO_2:
DCR H
MOV A,M
CPI V_CAN_GO
RNC
INR H
MOV A,M
CPI V_CAN_GO
RNC
MVI B,1
RET
FALL:
STA V_YOU_VERT
MOV C,A
LDA V_YOU_Y
MOV H,A
ADD C
STA V_YOU_Y
LDA V_YOU_X
MOV L,A
MOV A,H
SUB C
MOV H,A
SHLD V_TEMP_16
DCR L
CALL PUT_TILE
LHLD V_TEMP_16
CALL PUT_TILE
LHLD V_TEMP_16
INR L
CALL PUT_TILE
LHLD V_YOU_X
INR H
MOV A,M
CPI V_CAN_UP
JNC FALL_PUT_128
INR H
MOV A,M
CPI V_CAN_GO
JNC FALL_PUT_128
;LDA V_TYPE
;ANI 01111111b
;CPI 2
;RZ
;MVI A,2
;STA V_TYPE
RET
FALL_PUT_128:
MVI A,128
STA V_TYPE
RET
DO_DEAD:
MVI A,255
STA V_TYPE
RET
CHECK_FALL:
LHLD V_YOU_X
INR H
MOV A,M
CPI V_CAN_UP
JNC C_F2
INR H
MOV A,M
CPI V_CAN_GO
RNC
LDA V_TYPE
ANI 01111111b
CPI 2
RZ
MVI A,2
STA V_TYPE
RET
C_F2:
INR H
MOV A,M
CPI V_CAN_DEAD
JNC DO_DEAD
DCR L
MOV A,M
CPI V_CAN_GO
RNC
CPI V_CAN_UP
RC
INR L
MOV A,M
CPI V_CAN_GO
RNC
CPI V_CAN_UP
RC
INR L
MOV A,M
CPI V_CAN_GO
RNC
CPI V_CAN_UP
RC
MVI A,1
JMP FALL
;RET