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Commented/labelled misc functions

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This commit is contained in:
YamaArashi 2014-09-14 11:29:18 -07:00
parent 0c916aea33
commit 2ed65d9c3e
114 changed files with 733 additions and 668 deletions
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110
engine/overworld/hidden_objects.asm
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@ -6,7 +6,7 @@ Func_46981: ; 46981 (11:6981)
ret nz
call ArePlayerCoordsInArray
ret nc
ld a, [wWhichTrade] ; wWhichTrade
ld a, [wWhichTrade]
ld [wWhichDungeonWarp], a
ld hl, wd72d
set 4, [hl]
@ -14,7 +14,8 @@ Func_46981: ; 46981 (11:6981)
set 4, [hl]
ret
Func_469a0: ; 469a0 (11:69a0)
; if a hidden object was found, stores $00 in [$ffee], else stores $ff
CheckForHiddenObject: ; 469a0 (11:69a0)
ld hl, $ffeb
xor a
ld [hli], a
@ -22,107 +23,110 @@ Func_469a0: ; 469a0 (11:69a0)
ld [hli], a
ld [hl], a
ld de, $0
ld hl, HiddenObjectMaps ; $6a40
.asm_469ae
ld hl, HiddenObjectMaps
.hiddenMapLoop
ld a, [hli]
ld b, a
cp $ff
jr z, .asm_469fc
ld a, [W_CURMAP] ; W_CURMAP
jr z, .noMatch
ld a, [W_CURMAP]
cp b
jr z, .asm_469be
jr z, .foundMatchingMap
inc de
inc de
jr .asm_469ae
.asm_469be
ld hl, HiddenObjectPointers ; $6a96
jr .hiddenMapLoop
.foundMatchingMap
ld hl, HiddenObjectPointers
add hl, de
ld a, [hli]
ld h, [hl]
ld l, a
push hl
ld hl, wWhichTrade ; wWhichTrade
ld hl, wHiddenObjectFunctionArgument
xor a
ld [hli], a
ld [hli], a
ld [hl], a
pop hl
.asm_469ce
.hiddenObjectLoop
ld a, [hli]
cp $ff
jr z, .asm_469fc
ld [wTrainerScreenY], a
jr z, .noMatch
ld [wHiddenObjectY], a
ld b, a
ld a, [hli]
ld [wTrainerScreenX], a
ld [wHiddenObjectX], a
ld c, a
call Func_46a01
call CheckIfCoordsInFrontOfPlayerMatch
ld a, [$ffea]
and a
jr z, .asm_469f0
jr z, .foundMatchingObject
inc hl
inc hl
inc hl
inc hl
push hl
ld hl, wTrainerFacingDirection
ld hl, wHiddenObjectIndex
inc [hl]
pop hl
jr .asm_469ce
.asm_469f0
jr .hiddenObjectLoop
.foundMatchingObject
ld a, [hli]
ld [wWhichTrade], a ; wWhichTrade
ld [wHiddenObjectFunctionArgument], a
ld a, [hli]
ld [wTrainerEngageDistance], a
ld [wHiddenObjectFunctionRomBank], a
ld a, [hli]
ld h, [hl]
ld l, a
ret
.asm_469fc
.noMatch
ld a, $ff
ld [$ffee], a
ret
Func_46a01: ; 46a01 (11:6a01)
ld a, [wSpriteStateData1 + 9]
cp $4
jr z, .asm_46a16
cp $8
jr z, .asm_46a25
cp $c
jr z, .asm_46a2b
ld a, [W_YCOORD] ; wd361
; checks if the coordinates in front of the player's sprite match Y in b and X in c
; [$ffea] = $00 if they match, $ff if they don't match
CheckIfCoordsInFrontOfPlayerMatch: ; 46a01 (11:6a01)
ld a, [wSpriteStateData1 + 9] ; player's sprite facing direction
cp SPRITE_FACING_UP
jr z, .facingUp
cp SPRITE_FACING_LEFT
jr z, .facingLeft
cp SPRITE_FACING_RIGHT
jr z, .facingRight
; facing down
ld a, [W_YCOORD]
inc a
jr .asm_46a1a
.asm_46a16
ld a, [W_YCOORD] ; wd361
jr .upDownCommon
.facingUp
ld a, [W_YCOORD]
dec a
.asm_46a1a
.upDownCommon
cp b
jr nz, .asm_46a3b
ld a, [W_XCOORD] ; wd362
jr nz, .didNotMatch
ld a, [W_XCOORD]
cp c
jr nz, .asm_46a3b
jr .asm_46a38
.asm_46a25
ld a, [W_XCOORD] ; wd362
jr nz, .didNotMatch
jr .matched
.facingLeft
ld a, [W_XCOORD]
dec a
jr .asm_46a2f
.asm_46a2b
ld a, [W_XCOORD] ; wd362
jr .leftRightCommon
.facingRight
ld a, [W_XCOORD]
inc a
.asm_46a2f
.leftRightCommon
cp c
jr nz, .asm_46a3b
ld a, [W_YCOORD] ; wd361
jr nz, .didNotMatch
ld a, [W_YCOORD]
cp b
jr nz, .asm_46a3b
.asm_46a38
jr nz, .didNotMatch
.matched
xor a
jr .asm_46a3d
.asm_46a3b
jr .done
.didNotMatch
ld a, $ff
.asm_46a3d
.done
ld [$ffea], a
ret