diff options
Diffstat (limited to 'engine/overworld')
| -rw-r--r-- | engine/overworld/movement.asm | 28 | ||||
| -rwxr-xr-x | engine/overworld/npc_movement.asm | 98 | ||||
| -rw-r--r-- | engine/overworld/oam.asm | 6 |
3 files changed, 71 insertions, 61 deletions
diff --git a/engine/overworld/movement.asm b/engine/overworld/movement.asm index 5b9f878d..30793dec 100644 --- a/engine/overworld/movement.asm +++ b/engine/overworld/movement.asm @@ -188,7 +188,7 @@ UpdateNPCSprite: ; 4ed1 (1:4ed1) call LoadDEPlusA ; a = [wNPCMovementDirections + $fe] (?) jr .determineDirection .randomMovement - call getTileSpriteStandsOn + call GetTileSpriteStandsOn call Random .determineDirection ld b, a @@ -504,7 +504,7 @@ CheckSpriteAvailability: ; 50dc (1:50dc) .skipXVisibilityTest ; make the sprite invisible if a text box is in front of it ; $5F is the maximum number for map tiles - call getTileSpriteStandsOn + call GetTileSpriteStandsOn ld d, $60 ld a, [hli] cp d @@ -685,7 +685,7 @@ CanWalkOntoTile: ; 516e (1:516e) ; calculates the tile pointer pointing to the tile the current sprite stancs on ; this is always the lower left tile of the 2x2 tile blocks all sprites are snapped to ; hl: output pointer -getTileSpriteStandsOn: ; 5207 (1:5207) +GetTileSpriteStandsOn: ; 5207 (1:5207) ld h, $c1 ld a, [H_CURRENTSPRITEOFFSET] add $4 @@ -724,6 +724,10 @@ LoadDEPlusA: ; 522f (1:522f) ret DoScriptedNPCMovement: ; 5236 (1:5236) +; This is an alternative method of scripting an NPC's movement and is only used +; a few times in the game. It is used when the NPC and player must walk together +; in sync, such as when the player is following the NPC somewhere. An NPC can't +; be moved in sync with the player using the other method. ld a, [wd730] bit 7, a ret z @@ -740,28 +744,28 @@ DoScriptedNPCMovement: ; 5236 (1:5236) .noCarry ld a, [hl] ; check if moving up - cp $40 + cp NPC_MOVEMENT_UP jr nz, .checkIfMovingDown call GetSpriteScreenYPointer ld c, SPRITE_FACING_UP ld a, -2 jr .move .checkIfMovingDown - cp $0 + cp NPC_MOVEMENT_DOWN jr nz, .checkIfMovingLeft call GetSpriteScreenYPointer ld c, SPRITE_FACING_DOWN ld a, 2 jr .move .checkIfMovingLeft - cp $80 + cp NPC_MOVEMENT_LEFT jr nz, .checkIfMovingRight call GetSpriteScreenXPointer ld c, SPRITE_FACING_LEFT ld a, -2 jr .move .checkIfMovingRight - cp $c0 + cp NPC_MOVEMENT_RIGHT jr nz, .noMatch call GetSpriteScreenXPointer ld c, SPRITE_FACING_RIGHT @@ -781,11 +785,11 @@ DoScriptedNPCMovement: ; 5236 (1:5236) ld a, c ld [hl], a ; facing direction call AnimScriptedNPCMovement - ld hl, wcf18 + ld hl, wScriptedNPCWalkCounter dec [hl] ret nz - ld a, $8 - ld [wcf18], a + ld a, 8 + ld [wScriptedNPCWalkCounter], a ld hl, wNPCMovementDirections2Index inc [hl] ret @@ -793,8 +797,8 @@ DoScriptedNPCMovement: ; 5236 (1:5236) InitScriptedNPCMovement: ; 52a6 (1:52a6) xor a ld [wNPCMovementDirections2Index], a - ld a, $8 - ld [wcf18], a + ld a, 8 + ld [wScriptedNPCWalkCounter], a jp AnimScriptedNPCMovement GetSpriteScreenYPointer: ; 52b2 (1:52b2) diff --git a/engine/overworld/npc_movement.asm b/engine/overworld/npc_movement.asm index f27df648..aabc2de8 100755 --- a/engine/overworld/npc_movement.asm +++ b/engine/overworld/npc_movement.asm @@ -44,22 +44,25 @@ _EndNPCMovementScript: ; 1a41d (6:641d) ld [wSimulatedJoypadStatesEnd], a ret -ProfOakMovementScriptPointerTable: ; 1a442 (6:6442) - dw Func_1a44c - dw Func_1a485 - dw Func_1a4a1 - dw Func_1a4a6 - dw Func_1a4f4 +PalletMovementScriptPointerTable: ; 1a442 (6:6442) + dw PalletMovementScript_OakMoveLeft + dw PalletMovementScript_PlayerMoveLeft + dw PalletMovementScript_WaitAndWalkToLab + dw PalletMovementScript_WalkToLab + dw PalletMovementScript_Done -Func_1a44c: ; 1a44c (6:644c) +PalletMovementScript_OakMoveLeft: ; 1a44c (6:644c) ld a, [W_XCOORD] sub $a - ld [wcca1], a - jr z, .asm_1a475 - ld b, $0 + ld [wNumStepsToTake], a + jr z, .playerOnLeftTile +; The player is on the right tile of the northern path out of Pallet Town and +; Prof. Oak is below. +; Make Prof. Oak step to the left. + ld b, 0 ld c, a ld hl, wNPCMovementDirections2 - ld a, $80 + ld a, NPC_MOVEMENT_LEFT call FillMemory ld [hl], $ff ld a, [wSpriteIndex] @@ -68,36 +71,39 @@ Func_1a44c: ; 1a44c (6:644c) call MoveSprite ld a, $1 ld [wNPCMovementScriptFunctionNum], a - jr .asm_1a47a -.asm_1a475 + jr .done +; The player is on the left tile of the northern path out of Pallet Town and +; Prof. Oak is below. +; Prof. Oak is already on the right tile. +.playerOnLeftTile ld a, $3 ld [wNPCMovementScriptFunctionNum], a -.asm_1a47a +.done ld hl, W_FLAGS_D733 set 1, [hl] ld a, $fc ld [wJoyIgnore], a ret -Func_1a485: ; 1a485 (6:6485) +PalletMovementScript_PlayerMoveLeft: ; 1a485 (6:6485) ld a, [wd730] - bit 0, a - ret nz - ld a, [wcca1] + bit 0, a ; is an NPC being moved by a script? + ret nz ; return if Oak is still moving + ld a, [wNumStepsToTake] ld [wSimulatedJoypadStatesIndex], a - ld [$ff95], a + ld [hNPCMovementDirections2Index], a predef ConvertNPCMovementDirectionsToJoypadMasks call StartSimulatingJoypadStates ld a, $2 ld [wNPCMovementScriptFunctionNum], a ret -Func_1a4a1: ; 1a4a1 (6:64a1) +PalletMovementScript_WaitAndWalkToLab: ; 1a4a1 (6:64a1) ld a, [wSimulatedJoypadStatesIndex] - and a + and a ; is the player done moving left yet? ret nz -Func_1a4a6: ; 1a4a6 (6:64a6) +PalletMovementScript_WalkToLab: ; 1a4a6 (6:64a6) xor a ld [wOverrideSimulatedJoypadStatesMask], a ld a, [wSpriteIndex] @@ -122,12 +128,12 @@ Func_1a4a6: ; 1a4a6 (6:64a6) ret RLEList_ProfOakWalkToLab: ; 1a4dc (6:64dc) - db $00, $05 - db $80, $01 - db $00, $05 - db $C0, $03 - db $40, $01 - db $E0, $01 + db NPC_MOVEMENT_DOWN, $05 + db NPC_MOVEMENT_LEFT, $01 + db NPC_MOVEMENT_DOWN, $05 + db NPC_MOVEMENT_RIGHT, $03 + db NPC_MOVEMENT_UP, $01 + db $E0, $01 ; stand still db $FF RLEList_PlayerWalkToLab: ; 1a4e9 (6:64e9) @@ -138,7 +144,7 @@ RLEList_PlayerWalkToLab: ; 1a4e9 (6:64e9) db D_DOWN, $06 db $FF -Func_1a4f4: ; 1a4f4 (6:64f4) +PalletMovementScript_Done: ; 1a4f4 (6:64f4) ld a, [wSimulatedJoypadStatesIndex] and a ret nz @@ -152,10 +158,10 @@ Func_1a4f4: ; 1a4f4 (6:64f4) jp EndNPCMovementScript PewterMuseumGuyMovementScriptPointerTable: ; 1a510 (6:6510) - dw Func_1a514 - dw PewterMovementScriptDone + dw PewterMovementScript_WalkToMuseum + dw PewterMovementScript_Done -Func_1a514: ; 1a514 (6:6514) +PewterMovementScript_WalkToMuseum: ; 1a514 (6:6514) ld a, BANK(Music_MuseumGuy) ld [wc0ef], a ld [wc0f0], a @@ -191,13 +197,13 @@ RLEList_PewterMuseumPlayer: ; 1a559 (6:6559) db $FF RLEList_PewterMuseumGuy: ; 1a562 (6:6562) - db $40, $06 - db $80, $0D - db $40, $03 - db $80, $01 + db NPC_MOVEMENT_UP, $06 + db NPC_MOVEMENT_LEFT, $0D + db NPC_MOVEMENT_UP, $03 + db NPC_MOVEMENT_LEFT, $01 db $FF -PewterMovementScriptDone: ; 1a56b (6:656b) +PewterMovementScript_Done: ; 1a56b (6:656b) ld a, [wSimulatedJoypadStatesIndex] and a ret nz @@ -208,10 +214,10 @@ PewterMovementScriptDone: ; 1a56b (6:656b) jp EndNPCMovementScript PewterGymGuyMovementScriptPointerTable: ; 1a57d (6:657d) - dw Func_1a581 - dw PewterMovementScriptDone + dw PewterMovementScript_WalkToGym + dw PewterMovementScript_Done -Func_1a581: ; 1a581 (6:6581) +PewterMovementScript_WalkToGym: ; 1a581 (6:6581) ld a, BANK(Music_MuseumGuy) ld [wc0ef], a ld [wc0f0], a @@ -252,12 +258,12 @@ RLEList_PewterGymPlayer: ; 1a5cd (6:65cd) db $FF RLEList_PewterGymGuy: ; 1a5da (6:65da) - db $00, $02 - db $80, $0F - db $40, $05 - db $80, $0B - db $00, $05 - db $C0, $03 + db NPC_MOVEMENT_DOWN, $02 + db NPC_MOVEMENT_LEFT, $0F + db NPC_MOVEMENT_UP, $05 + db NPC_MOVEMENT_LEFT, $0B + db NPC_MOVEMENT_DOWN, $05 + db NPC_MOVEMENT_RIGHT, $03 db $FF FreezeEnemyTrainerSprite: ; 1a5e7 (6:65e7) diff --git a/engine/overworld/oam.asm b/engine/overworld/oam.asm index 0bd16e1a..41360965 100644 --- a/engine/overworld/oam.asm +++ b/engine/overworld/oam.asm @@ -16,10 +16,10 @@ PrepareOAMData: ld [hOAMBufferOffset], a .spriteLoop - ld [hSpriteDataOffset2], a + ld [hSpriteOffset2], a ld d, wSpriteStateData1 / $100 - ld a, [hSpriteDataOffset2] + ld a, [hSpriteOffset2] ld e, a ld a, [de] ; c1x0 and a @@ -139,7 +139,7 @@ PrepareOAMData: ld [hOAMBufferOffset], a .nextSprite - ld a, [hSpriteDataOffset2] + ld a, [hSpriteOffset2] add $10 cp $100 % $100 jp nz, .spriteLoop |