Merge pull request #46 from andwhyisit/pausemenu-5

Pause Menu Part 5

game/src/core/state_indexes.asm

@@ -35,3 +35,9 @@ IncSubStateIndex::
   inc a
   ld [W_CoreSubStateIndex], a
   ret
+
+SECTION "Increment Item Action SubSubSubState Index", ROMX[$544F], BANK[$06]
+IncItemActionSubSubSubStateIndex::
+  ld hl, W_ItemActionSubSubSubStateIndex
+  inc [hl]
+  ret

game/src/gfx/tilemap.asm

@@ -408,7 +408,33 @@ GetOverworldScrollTileOffset::
   ld c, a
   ret
 
-SECTION "Clear Tilemaps and Attribmaps", ROMX[$408E], BANK[$15]
+SECTION "Clear Tilemaps and Attribmaps 1", ROM0[$2936]
+ClearMapRect::
+  ld a, b
+  ld [$C4EE], a
+
+.rowLoop
+  push hl
+  ld a, [$C4EE]
+  ld b, a
+
+.tileLoop
+  di
+  rst $20
+  xor a
+  ld [hli], a
+  ei
+  dec b
+  jr nz, .tileLoop
+
+  pop hl
+  ld de, $20
+  add hl, de
+  dec c
+  jr nz, .rowLoop
+  ret
+
+SECTION "Clear Tilemaps and Attribmaps 2", ROMX[$408E], BANK[$15]
 ClearMappings0::
   ld hl, $9800
   jr ClearMappings1.extEntry

game/src/pausemenu/item_action_core.asm

@@ -0,0 +1,158 @@
+INCLUDE "game/src/common/macros.asm"
+INCLUDE "game/src/common/constants.asm"
+
+SECTION "Item Action State Machine 1", ROMX[$5318], BANK[$06]
+ItemActionStateMachine::
+  ld a, [W_ItemActionSubSubStateIndex]
+  rst 0
+  dw ItemActionPlaceholderState ;00
+  dw ItemActionTownMapStateMachine ;01
+  dw $5454 ;02
+  dw $5454 ;03
+  dw $5454 ;04
+  dw $5454 ;05
+  dw ItemActionPlaceholderState ;06
+  dw ItemActionPlaceholderState ;07
+  dw ItemActionPlaceholderState ;08
+  dw $5454 ;09
+  dw $5454 ;0A
+  dw $5454 ;0B
+  dw ItemActionPlaceholderState ;0C
+  dw $559A ;0D
+  dw ItemActionPlaceholderState ;0E
+  dw ItemActionPlaceholderState ;0F
+  dw ItemActionPlaceholderState ;10
+  dw ItemActionPlaceholderState ;11
+  dw ItemActionPlaceholderState ;12
+  dw ItemActionPlaceholderState ;13
+  dw ItemActionPlaceholderState ;14
+  dw ItemActionPlaceholderState ;15
+  dw ItemActionPlaceholderState ;16
+  dw ItemActionPlaceholderState ;17
+  dw ItemActionPlaceholderState ;18
+  dw ItemActionPlaceholderState ;19
+  dw ItemActionPlaceholderState ;1A
+  dw ItemActionPlaceholderState ;1B
+  dw ItemActionPlaceholderState ;1C
+  dw ItemActionPlaceholderState ;1D
+  dw ItemActionPlaceholderState ;1E
+  dw ItemActionPlaceholderState ;1F
+  dw ItemActionPlaceholderState ;20
+  dw ItemActionPlaceholderState ;21
+  dw ItemActionPlaceholderState ;22
+  dw ItemActionPlaceholderState ;23
+  dw ItemActionPlaceholderState ;24
+  dw ItemActionPlaceholderState ;25
+  dw ItemActionPlaceholderState ;26
+  dw ItemActionPlaceholderState ;27
+  dw ItemActionPlaceholderState ;28
+  dw ItemActionPlaceholderState ;29
+  dw ItemActionPlaceholderState ;2A
+  dw ItemActionPlaceholderState ;2B
+  dw ItemActionPlaceholderState ;2C
+  dw ItemActionPlaceholderState ;2D
+  dw ItemActionPlaceholderState ;2E
+  dw ItemActionPlaceholderState ;2F
+  dw ItemActionPlaceholderState ;30
+  dw ItemActionPlaceholderState ;31
+  dw ItemActionPlaceholderState ;32
+  dw ItemActionPlaceholderState ;33
+  dw ItemActionPlaceholderState ;34
+  dw ItemActionPlaceholderState ;35
+  dw ItemActionPlaceholderState ;36
+  dw ItemActionPlaceholderState ;37
+  dw ItemActionPlaceholderState ;38
+  dw ItemActionPlaceholderState ;39
+  dw ItemActionPlaceholderState ;3A
+  dw ItemActionPlaceholderState ;3B
+  dw ItemActionPlaceholderState ;3C
+  dw ItemActionPlaceholderState ;3D
+  dw ItemActionPlaceholderState ;3E
+  dw ItemActionPlaceholderState ;3F
+  dw $577D ;40
+
+ItemActionPlaceholderState::
+  ret
+
+ItemActionTownMapStateMachine::
+  ld a, [W_ItemActionSubSubSubStateIndex]
+  rst 0
+
+  dw ItemActionTownMapUsabilityCheckState
+  dw ItemActionPrepareScriptEngineState
+  dw ItemActionPrintErrorMessageState
+  dw ItemActionTownMapPlaceholderState
+  dw ItemActionPrepareFadeOutState
+  dw ItemActionFadeState
+  dw ItemActionOpenTownMapState
+
+ItemActionTownMapPlaceholderState::
+  ret
+
+ItemActionTownMapUsabilityCheckState::
+  ld a, [$C65F]
+  and $20
+  jr z, .itemCanBeUsedHere
+  ld bc, $22
+  call ItemActionStoreMessageIndex
+  jp IncItemActionSubSubSubStateIndex
+
+.itemCanBeUsedHere
+  ld a, 4
+  ld [W_ItemActionSubSubSubStateIndex], a
+  ret
+
+ItemActionOpenTownMapState::
+  ld a, 0
+  ld [$C4EE], a
+  ld a, $14
+  ld [$C4EF], a
+  ld a, 0
+  ld [$C4F0], a
+  ld a, $12
+  ld [$C4F1], a
+  ld a, 3
+  cbcallindex $B2
+  xor a
+  ld [$C4E0], a
+  ld a, $4E
+  ld [W_CoreStateIndex], a
+  xor a
+  ld [W_CoreSubStateIndex], a
+  ret
+
+SECTION "Item Action State Machine 2", ROMX[$53FD], BANK[$06]
+ItemActionPrepareScriptEngineState::
+  cbcall InitiateMainScript
+  jp IncItemActionSubSubSubStateIndex
+
+ItemActionPrintErrorMessageState::
+  ld a, [W_ItemActionMessageIndex]
+  ld b, a
+  ld a, [W_ItemActionMessageIndex + 1]
+  ld c, a
+  ld a, 1
+  cbcall MainScriptLoopHelper
+  ld a, [W_MainScriptExitMode]
+  or a
+  ret z
+  call LoadSelectedItemDescription
+  ld a, 4
+  ld [W_CoreSubStateIndex], a
+  ret
+
+ItemActionPrepareFadeOutState::
+  ld hl, 1
+  ld bc, 1
+  ld d, $FF
+  ld e, $FF
+  ld a, 8
+  cbcall SetupPalswapAnimation
+  jp IncItemActionSubSubSubStateIndex
+
+ItemActionFadeState::
+  cbcallindex $35
+  ld a, [W_PaletteAnimRunning]
+  or a
+  ret nz
+  jp IncItemActionSubSubSubStateIndex

game/src/pausemenu/item_core.asm

@@ -190,7 +190,7 @@ ItemMenuMustBeInVehicleMessageState::
   ret
 
 ItemMenuTriggerSpecialItemActionState::
-  jp $5318
+  jp ItemActionStateMachine
 
 ItemMenuReturnState::
   ld a, 6

game/src/pausemenu/items.asm

@@ -1,6 +1,9 @@
 INCLUDE "game/src/common/macros.asm"
 INCLUDE "game/src/common/constants.asm"
 
+SECTION "Item Action Message Index Variable", WRAM0[$C495]
+W_ItemActionMessageIndex:: ds 2
+
 SECTION "Item Page Row Index",  WRAM0[$C4FC]
 W_ItemPageRowIndex:: ds 1
 
@@ -240,6 +243,14 @@ ItemMenuShowPageArrows::
   ld [$C104], a
   ret
 
+SECTION "Item Action Helper Functions", ROMX[$53F4], BANK[$06]
+ItemActionStoreMessageIndex::
+  ld a, b
+  ld [W_ItemActionMessageIndex], a
+  ld a, c
+  ld [W_ItemActionMessageIndex + 1], a
+  ret
+
 SECTION "Item Helper Functions", ROMX[$5834], BANK[$15]
 IsItemInInventory::
   ld [$C4EE], a