diff options
Diffstat (limited to 'engine/overworld/pathfinding.asm')
| -rw-r--r-- | engine/overworld/pathfinding.asm | 60 |
1 files changed, 30 insertions, 30 deletions
diff --git a/engine/overworld/pathfinding.asm b/engine/overworld/pathfinding.asm index 7251759c..54cb86b9 100644 --- a/engine/overworld/pathfinding.asm +++ b/engine/overworld/pathfinding.asm @@ -8,29 +8,29 @@ FindPathToPlayer: ld hl, wNPCMovementDirections2 ld de, $0 .loop - ld a, [hFindPathYProgress] + ldh a, [hFindPathYProgress] ld b, a - ld a, [hNPCPlayerYDistance] ; Y distance in steps + ldh a, [hNPCPlayerYDistance] ; Y distance in steps call CalcDifference ld d, a and a jr nz, .asm_f8da - ld a, [hFindPathFlags] + ldh a, [hFindPathFlags] set 0, a ; current end of path matches the player's Y coordinate - ld [hFindPathFlags], a + ldh [hFindPathFlags], a .asm_f8da - ld a, [hFindPathXProgress] + ldh a, [hFindPathXProgress] ld b, a - ld a, [hNPCPlayerXDistance] ; X distance in steps + ldh a, [hNPCPlayerXDistance] ; X distance in steps call CalcDifference ld e, a and a jr nz, .asm_f8ec - ld a, [hFindPathFlags] + ldh a, [hFindPathFlags] set 1, a ; current end of path matches the player's X coordinate - ld [hFindPathFlags], a + ldh [hFindPathFlags], a .asm_f8ec - ld a, [hFindPathFlags] + ldh a, [hFindPathFlags] cp $3 ; has the end of the path reached the player's position? jr z, .done ; Compare whether the X distance between the player and the current of the path @@ -39,7 +39,7 @@ FindPathToPlayer: cp d jr c, .yDistanceGreater ; x distance is greater - ld a, [hNPCPlayerRelativePosFlags] + ldh a, [hNPCPlayerRelativePosFlags] bit 1, a jr nz, .playerIsLeftOfNPC ld d, NPC_MOVEMENT_RIGHT @@ -47,12 +47,12 @@ FindPathToPlayer: .playerIsLeftOfNPC ld d, NPC_MOVEMENT_LEFT .next1 - ld a, [hFindPathXProgress] + ldh a, [hFindPathXProgress] add 1 - ld [hFindPathXProgress], a + ldh [hFindPathXProgress], a jr .storeDirection .yDistanceGreater - ld a, [hNPCPlayerRelativePosFlags] + ldh a, [hNPCPlayerRelativePosFlags] bit 0, a jr nz, .playerIsAboveNPC ld d, NPC_MOVEMENT_DOWN @@ -60,15 +60,15 @@ FindPathToPlayer: .playerIsAboveNPC ld d, NPC_MOVEMENT_UP .next2 - ld a, [hFindPathYProgress] + ldh a, [hFindPathYProgress] add 1 - ld [hFindPathYProgress], a + ldh [hFindPathYProgress], a .storeDirection ld a, d ld [hli], a - ld a, [hFindPathNumSteps] + ldh a, [hFindPathNumSteps] inc a - ld [hFindPathNumSteps], a + ldh [hFindPathNumSteps], a jp .loop .done ld [hl], $ff @@ -76,13 +76,13 @@ FindPathToPlayer: CalcPositionOfPlayerRelativeToNPC: xor a - ld [hNPCPlayerRelativePosFlags], a + ldh [hNPCPlayerRelativePosFlags], a ld a, [wSpritePlayerStateData1YPixels] ld d, a ld a, [wSpritePlayerStateData1XPixels] ld e, a ld hl, wSpriteStateData1 - ld a, [hNPCSpriteOffset] + ldh a, [hNPCSpriteOffset] add l add wSpritePlayerStateData1YPixels - wSpritePlayerStateData1 ld l, a @@ -115,7 +115,7 @@ CalcPositionOfPlayerRelativeToNPC: ld [hli], a call DivideBytes ; divide Y absolute distance by 16 ld a, [hl] ; quotient - ld [hNPCPlayerYDistance], a + ldh [hNPCPlayerYDistance], a pop hl inc hl ld b, e @@ -136,23 +136,23 @@ CalcPositionOfPlayerRelativeToNPC: res 1, [hl] pop hl .divideXDistance - ld [hDividend2], a + ldh [hDividend2], a ld a, 16 - ld [hDivisor2], a + ldh [hDivisor2], a call DivideBytes ; divide X absolute distance by 16 - ld a, [hQuotient2] - ld [hNPCPlayerXDistance], a - ld a, [hNPCPlayerRelativePosPerspective] + ldh a, [hQuotient2] + ldh [hNPCPlayerXDistance], a + ldh a, [hNPCPlayerRelativePosPerspective] and a ret z - ld a, [hNPCPlayerRelativePosFlags] + ldh a, [hNPCPlayerRelativePosFlags] cpl and $3 - ld [hNPCPlayerRelativePosFlags], a + ldh [hNPCPlayerRelativePosFlags], a ret ConvertNPCMovementDirectionsToJoypadMasks: - ld a, [hNPCMovementDirections2Index] + ldh a, [hNPCMovementDirections2Index] ld [wNPCMovementDirections2Index], a dec a ld de, wSimulatedJoypadStatesEnd @@ -166,9 +166,9 @@ ConvertNPCMovementDirectionsToJoypadMasks: call ConvertNPCMovementDirectionToJoypadMask ld [de], a inc de - ld a, [hNPCMovementDirections2Index] + ldh a, [hNPCMovementDirections2Index] dec a - ld [hNPCMovementDirections2Index], a + ldh [hNPCMovementDirections2Index], a jr nz, .loop ret |