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;; Only can jump if the place below feet is free.
SwitchBank #$1C
LDY Object_type,x
LDA ObjectBboxTop,y
CLC
ADC ObjectHeight,y
sta temp2
LDA Object_x_hi,x
CLC
ADC ObjectBboxLeft,y
STA temp
JSR getPointColTable
LDA Object_y_hi,x
CLC
ADC #$02
CLC
ADC temp2
STA temp1
CheckCollisionPoint temp, temp1, #$01, tempA ;; check below feet to see if it is solid.
;;; if it is (equal), can jump.
;;; if not, skips jumping.
BNE +noJumpYet
JMP +doJump
+noJumpYet
CheckCollisionPoint temp, temp1, #$07, tempA ;; check below feet to see if it is jumpthrough platform.
;;; if it is (equal), can jump.
;;; if not, skips jumping.
BNE +noJumpYet
JMP +doJump
+noJumpYet
CheckCollisionPoint temp, temp1, #$0A, tempA ;; check below feet to see if it is ladder top platform.
;;; if it is (equal), can jump.
;;; if not, skips jumping.
BEQ +doJump ;; check second point.
LDY Object_type,x
LDA ObjectWidth,y
CLC
ADC temp
STA temp
JSR getPointColTable
CheckCollisionPoint temp, temp1, #$01, tempA ;; check below feet to see if it is solid.
;;; if it is (equal), can jump.
;;; if not, skips jumping.
BEQ +doJump
CheckCollisionPoint temp, temp1, #$07, tempA ;; check below feet to see if it is jumpthrough platform.
;;; if it is (equal), can jump.
;;; if not, skips jumping.
BEQ +doJump
CheckCollisionPoint temp, temp1, #$0A, tempA ;; check below feet to see if it is ladder top platform.
;;; if it is (equal), can jump.
;;; if not, skips jumping.
BEQ +doJump ;; check second point.
JMP +skipJumping
+doJump:
TXA
STA temp ;; assumes the object we want to move is in x.
LDY Object_type,x
LDA ObjectJumpSpeedLo,y
EOR #$FF
STA Object_v_speed_lo,x
LDA ObjectJumpSpeedHi,y
EOR #$FF
STA Object_v_speed_hi,x
TXA
STA temp ;; assumes the object we want to move is in x.
; change the object's action so that he is in jump mode.
+skipJumping:
ReturnBank
RTS
