ref: 7a2a20528136b9a2452a313cd50c46a45f9a5cb0
dir: /engine/map_object_action.asm/
ld hl, OBJECT_ACTION add hl, bc ld a, [hl] ld l, a ld h, 0 add hl, hl add hl, hl add hl, de ld a, [hli] ld h, [hl] ld l, a call _hl_ ret ; 445f Pointers445f: ; 445f dw SetFacingStanding, SetFacingStanding ; 00 dw SetFacingStandAction, SetFacingCurrent ; 01 standing? dw SetFacingStepAction, SetFacingCurrent ; 02 walking? dw SetFacingBumpAction, SetFacingCurrent ; 03 bumping? dw SetFacingCounterclockwiseSpin, SetFacingCurrent ; 04 dw SetFacingCounterclockwiseSpin2, SetFacingStanding ; 05 dw SetFacingFish, SetFacingFish ; 06 dw SetFacingShadow, SetFacingStanding ; 07 dw SetFacingEmote, SetFacingEmote ; 08 dw SetFacingBigDollSym, SetFacingBigDollSym ; 09 dw SetFacingBounce, SetFacingFreezeBounce ; 0a dw SetFacingWeirdTree, SetFacingCurrent ; 0b dw SetFacingBigDollAsym, SetFacingBigDollAsym ; 0c dw SetFacingBigDoll, SetFacingBigDoll ; 0d dw SetFacingBoulderDust, SetFacingStanding ; 0e dw SetFacingGrassShake, SetFacingStanding ; 0f dw SetFacingSkyfall, SetFacingCurrent ; 10 ; 44a3 SetFacingStanding: ; 44a3 ld hl, OBJECT_FACING_STEP add hl, bc ld [hl], STANDING ret ; 44aa SetFacingCurrent: ; 44aa call GetSpriteDirection or FACING_STEP_DOWN_0 ; useless ld hl, OBJECT_FACING_STEP add hl, bc ld [hl], a ret ; 44b5 SetFacingStandAction: ; 44b5 ld hl, OBJECT_FACING_STEP add hl, bc ld a, [hl] and 1 jr nz, SetFacingStepAction jp SetFacingCurrent ; 44c1 SetFacingStepAction: ; 44c1 ld hl, OBJECT_FLAGS1 add hl, bc bit SLIDING, [hl] jp nz, SetFacingCurrent ld hl, OBJECT_STEP_FRAME add hl, bc ld a, [hl] inc a and %00001111 ld [hl], a rrca rrca and %00000011 ld d, a call GetSpriteDirection or FACING_STEP_DOWN_0 ; useless or d ld hl, OBJECT_FACING_STEP add hl, bc ld [hl], a ret ; 44e4 SetFacingSkyfall: ; 44e4 ld hl, OBJECT_FLAGS1 add hl, bc bit SLIDING, [hl] jp nz, SetFacingCurrent ld hl, OBJECT_STEP_FRAME add hl, bc ld a, [hl] add 2 and %00001111 ld [hl], a rrca rrca and %00000011 ld d, a call GetSpriteDirection or FACING_STEP_DOWN_0 ; useless or d ld hl, OBJECT_FACING_STEP add hl, bc ld [hl], a ret ; 4508 SetFacingBumpAction: ; 4508 ld hl, OBJECT_FLAGS1 add hl, bc bit SLIDING, [hl] jp nz, SetFacingCurrent ld hl, OBJECT_STEP_FRAME add hl, bc inc [hl] ld a, [hl] rrca rrca rrca and %00000011 ld d, a call GetSpriteDirection or FACING_STEP_DOWN_0 ; useless or d ld hl, OBJECT_FACING_STEP add hl, bc ld [hl], a ret ; 4529 SetFacingCounterclockwiseSpin: ; 4529 call CounterclockwiseSpinAction ld hl, OBJECT_FACING add hl, bc ld a, [hl] or FACING_STEP_DOWN_0 ; useless ld hl, OBJECT_FACING_STEP add hl, bc ld [hl], a ret ; 4539 SetFacingCounterclockwiseSpin2: ; 4539 call CounterclockwiseSpinAction jp SetFacingStanding ; 453f CounterclockwiseSpinAction: ; 453f ; Here, OBJECT_STEP_FRAME consists of two 2-bit components, ; using only bits 0,1 and 4,5. ; bits 0,1 is a timer (4 overworld frames) ; bits 4,5 determines the facing - the direction is counterclockwise. ld hl, OBJECT_STEP_FRAME add hl, bc ld a, [hl] and %11110000 ld e, a ld a, [hl] inc a and %00001111 ld d, a cp 4 jr c, .ok ld d, 0 ld a, e add $10 and %00110000 ld e, a .ok ld a, d or e ld [hl], a swap e ld d, 0 ld hl, .Directions add hl, de ld a, [hl] ld hl, OBJECT_FACING add hl, bc ld [hl], a ret ; 456a .Directions: ; 456a db OW_DOWN, OW_RIGHT, OW_UP, OW_LEFT ; 456e SetFacingFish: ; 456e call GetSpriteDirection rrca rrca add FACING_FISH_DOWN ld hl, OBJECT_FACING_STEP add hl, bc ld [hl], a ret ; 457b SetFacingShadow: ; 457b ld hl, OBJECT_FACING_STEP add hl, bc ld [hl], FACING_SHADOW ret ; 4582 SetFacingEmote: ; 4582 emote ld hl, OBJECT_FACING_STEP add hl, bc ld [hl], FACING_EMOTE ret ; 4589 SetFacingBigDollSym: ; 4589 ld hl, OBJECT_FACING_STEP add hl, bc ld [hl], FACING_BIG_DOLL_SYM ret ; 4590 SetFacingBounce: ; 4590 ld hl, OBJECT_STEP_FRAME add hl, bc ld a, [hl] inc a and %00001111 ld [hl], a and %00001000 jr z, SetFacingFreezeBounce ld hl, OBJECT_FACING_STEP add hl, bc ld [hl], FACING_STEP_UP_0 ret ; 45a4 SetFacingFreezeBounce: ; 45a4 ld hl, OBJECT_FACING_STEP add hl, bc ld [hl], FACING_STEP_DOWN_0 ret ; 45ab SetFacingWeirdTree: ; 45ab ld hl, OBJECT_STEP_FRAME add hl, bc ld a, [hl] inc a ld [hl], a and %00001100 rrca rrca add FACING_WEIRD_TREE_0 ld hl, OBJECT_FACING_STEP add hl, bc ld [hl], a ret ; 45be SetFacingBigDollAsym: ; 45be ld hl, OBJECT_FACING_STEP add hl, bc ld [hl], FACING_BIG_DOLL_ASYM ret ; 45c5 SetFacingBigDoll: ; 45c5 ld a, [VariableSprites + SPRITE_BIG_DOLL - SPRITE_VARS] ld d, FACING_BIG_DOLL_SYM ; symmetric cp SPRITE_BIG_SNORLAX jr z, .ok cp SPRITE_BIG_LAPRAS jr z, .ok ld d, FACING_BIG_DOLL_ASYM ; asymmetric .ok ld hl, OBJECT_FACING_STEP add hl, bc ld [hl], d ret ; 45da SetFacingBoulderDust: ; 45da ld hl, OBJECT_STEP_FRAME add hl, bc inc [hl] ld a, [hl] ld hl, OBJECT_FACING_STEP add hl, bc and 2 ld a, FACING_BOULDER_DUST_1 jr z, .ok inc a ; FACING_BOULDER_DUST_2 .ok ld [hl], a ret ; 45ed SetFacingGrassShake: ; 45ed ld hl, OBJECT_STEP_FRAME add hl, bc inc [hl] ld a, [hl] ld hl, OBJECT_FACING_STEP add hl, bc and 4 ld a, FACING_GRASS_1 jr z, .ok inc a ; FACING_GRASS_2 .ok ld [hl], a ret ; 4600