decompile truck_scene.c (#76)

* begin decompiling truck_scene.c

* more truck_scene.c work.

* Task_Truck2 pushed for YamaArashi, nonmatching

* begin decompiling truck_scene.c

more truck_scene.c work.

Task_Truck2 pushed for YamaArashi, nonmatching

* make truck scene match

* cleanup

* more consistency

* finish decompiling truck_scene.c

* formatting

* oops

5 files changed, 232 insertions, 609 deletions

diff --git a/asm/truck_scene.s b/asm/truck_scene.s
deleted file mode 100644
index 10dacf5bb..000000000
--- a/asm/truck_scene.s
+++ /dev/null
@@ -1,604 +0,0 @@
-	.include "constants/gba_constants.inc"
-	.include "constants/species_constants.inc"
-	.include "asm/macros.inc"
-
-	.syntax unified
-
-	.text
-
-	thumb_func_start sub_80C727C
-sub_80C727C: @ 80C727C
-	push {r4,lr}
-	adds r4, r0, 0
-	movs r1, 0x78
-	bl __modsi3
-	cmp r0, 0
-	bne _080C7290
-	movs r0, 0x1
-	negs r0, r0
-	b _080C72A2
-_080C7290:
-	adds r0, r4, 0
-	movs r1, 0xA
-	bl __modsi3
-	cmp r0, 0x4
-	ble _080C72A0
-	movs r0, 0
-	b _080C72A2
-_080C72A0:
-	movs r0, 0x1
-_080C72A2:
-	pop {r4}
-	pop {r1}
-	bx r1
-	thumb_func_end sub_80C727C
-
-	thumb_func_start sub_80C72A8
-sub_80C72A8: @ 80C72A8
-	push {lr}
-	adds r0, 0x78
-	movs r1, 0xB4
-	bl __modsi3
-	cmp r0, 0
-	beq _080C72BA
-	movs r0, 0
-	b _080C72BE
-_080C72BA:
-	movs r0, 0x1
-	negs r0, r0
-_080C72BE:
-	pop {r1}
-	bx r1
-	thumb_func_end sub_80C72A8
-
-	thumb_func_start sub_80C72C4
-sub_80C72C4: @ 80C72C4
-	push {r4,r5,lr}
-	sub sp, 0x4
-	lsls r0, 24
-	lsrs r0, 24
-	lsls r1, r0, 2
-	adds r1, r0
-	lsls r1, 3
-	ldr r0, _080C7364 @ =gTasks + 0x8
-	adds r5, r1, r0
-	movs r1, 0
-	ldrsh r0, [r5, r1]
-	adds r0, 0x1E
-	bl sub_80C72A8
-	ldr r4, _080C7368 @ =gSaveBlock1
-	ldrb r1, [r4, 0x5]
-	ldrb r2, [r4, 0x4]
-	lsls r0, 18
-	movs r3, 0xC0
-	lsls r3, 10
-	orrs r0, r3
-	asrs r0, 16
-	str r0, [sp]
-	movs r0, 0x1
-	movs r3, 0x3
-	bl sub_805BD90
-	movs r3, 0
-	ldrsh r0, [r5, r3]
-	bl sub_80C72A8
-	ldrb r1, [r4, 0x5]
-	ldrb r2, [r4, 0x4]
-	lsls r0, 17
-	ldr r3, _080C736C @ =0xfffd0000
-	adds r0, r3
-	asrs r0, 16
-	str r0, [sp]
-	movs r0, 0x2
-	movs r3, 0
-	bl sub_805BD90
-	movs r1, 0
-	ldrsh r0, [r5, r1]
-	bl sub_80C72A8
-	ldrb r1, [r4, 0x5]
-	ldrb r2, [r4, 0x4]
-	movs r4, 0
-	movs r3, 0x3
-	negs r3, r3
-	lsls r0, 18
-	asrs r0, 16
-	str r0, [sp]
-	movs r0, 0x3
-	bl sub_805BD90
-	ldrh r0, [r5]
-	adds r0, 0x1
-	strh r0, [r5]
-	lsls r0, 16
-	ldr r1, _080C7370 @ =0x75300000
-	cmp r0, r1
-	bne _080C7346
-	strh r4, [r5]
-_080C7346:
-	movs r3, 0
-	ldrsh r0, [r5, r3]
-	bl sub_80C727C
-	adds r1, r0, 0
-	lsls r1, 16
-	asrs r1, 16
-	movs r0, 0
-	bl SetCameraPanning
-	add sp, 0x4
-	pop {r4,r5}
-	pop {r0}
-	bx r0
-	.align 2, 0
-_080C7364: .4byte gTasks + 0x8
-_080C7368: .4byte gSaveBlock1
-_080C736C: .4byte 0xfffd0000
-_080C7370: .4byte 0x75300000
-	thumb_func_end sub_80C72C4
-
-	thumb_func_start sub_80C7374
-sub_80C7374: @ 80C7374
-	push {r4-r7,lr}
-	sub sp, 0x4
-	lsls r0, 24
-	lsrs r2, r0, 24
-	lsls r0, r2, 2
-	adds r0, r2
-	lsls r3, r0, 3
-	ldr r4, _080C73B4 @ =gTasks + 0x8
-	adds r7, r3, r4
-	ldrh r1, [r7]
-	adds r1, 0x1
-	strh r1, [r7]
-	ldrh r0, [r7, 0x4]
-	adds r0, 0x1
-	strh r0, [r7, 0x4]
-	lsls r1, 16
-	asrs r1, 16
-	cmp r1, 0x5
-	ble _080C73A4
-	movs r0, 0
-	strh r0, [r7]
-	ldrh r0, [r7, 0x2]
-	adds r0, 0x1
-	strh r0, [r7, 0x2]
-_080C73A4:
-	ldrh r0, [r7, 0x2]
-	cmp r0, 0x13
-	bne _080C73B8
-	adds r0, r2, 0
-	bl DestroyTask
-	b _080C746A
-	.align 2, 0
-_080C73B4: .4byte gTasks + 0x8
-_080C73B8:
-	ldr r2, _080C7474 @ =gUnknown_083D294C
-	movs r1, 0x2
-	ldrsh r0, [r7, r1]
-	adds r0, r2
-	ldrb r0, [r0]
-	lsls r0, 24
-	asrs r0, 24
-	cmp r0, 0x2
-	bne _080C73D4
-	adds r0, r4, 0
-	subs r0, 0x8
-	adds r0, r3, r0
-	ldr r1, _080C7478 @ =sub_80C7484
-	str r1, [r0]
-_080C73D4:
-	movs r4, 0x2
-	ldrsh r0, [r7, r4]
-	adds r0, r2
-	movs r5, 0
-	ldrsb r5, [r0, r5]
-	lsls r5, 16
-	lsrs r5, 16
-	movs r1, 0x4
-	ldrsh r0, [r7, r1]
-	bl sub_80C727C
-	adds r1, r0, 0
-	lsls r5, 16
-	asrs r5, 16
-	lsls r1, 16
-	asrs r1, 16
-	adds r0, r5, 0
-	bl SetCameraPanning
-	movs r4, 0x4
-	ldrsh r0, [r7, r4]
-	adds r0, 0x1E
-	bl sub_80C72A8
-	ldr r6, _080C747C @ =gSaveBlock1
-	ldrb r1, [r6, 0x5]
-	ldrb r2, [r6, 0x4]
-	movs r3, 0x3
-	subs r3, r5
-	lsls r3, 16
-	asrs r3, 16
-	lsls r0, 18
-	movs r4, 0xC0
-	lsls r4, 10
-	orrs r0, r4
-	asrs r0, 16
-	str r0, [sp]
-	movs r0, 0x1
-	bl sub_805BD90
-	movs r1, 0x4
-	ldrsh r0, [r7, r1]
-	bl sub_80C72A8
-	ldrb r1, [r6, 0x5]
-	ldrb r2, [r6, 0x4]
-	negs r3, r5
-	lsls r3, 16
-	asrs r3, 16
-	lsls r0, 17
-	ldr r4, _080C7480 @ =0xfffd0000
-	adds r0, r4
-	asrs r0, 16
-	str r0, [sp]
-	movs r0, 0x2
-	bl sub_805BD90
-	movs r1, 0x4
-	ldrsh r0, [r7, r1]
-	bl sub_80C72A8
-	ldrb r1, [r6, 0x5]
-	ldrb r2, [r6, 0x4]
-	movs r4, 0x3
-	negs r4, r4
-	adds r3, r4, 0
-	subs r3, r5
-	lsls r3, 16
-	asrs r3, 16
-	lsls r0, 18
-	asrs r0, 16
-	str r0, [sp]
-	movs r0, 0x3
-	bl sub_805BD90
-_080C746A:
-	add sp, 0x4
-	pop {r4-r7}
-	pop {r0}
-	bx r0
-	.align 2, 0
-_080C7474: .4byte gUnknown_083D294C
-_080C7478: .4byte sub_80C7484
-_080C747C: .4byte gSaveBlock1
-_080C7480: .4byte 0xfffd0000
-	thumb_func_end sub_80C7374
-
-	thumb_func_start sub_80C7484
-sub_80C7484: @ 80C7484
-	push {r4-r6,lr}
-	mov r6, r8
-	push {r6}
-	sub sp, 0x4
-	lsls r0, 24
-	lsrs r0, 24
-	adds r3, r0, 0
-	lsls r0, r3, 2
-	adds r0, r3
-	lsls r0, 3
-	ldr r1, _080C74C4 @ =gTasks + 0x8
-	adds r2, r0, r1
-	ldrh r0, [r2]
-	adds r0, 0x1
-	strh r0, [r2]
-	lsls r0, 16
-	asrs r0, 16
-	cmp r0, 0x5
-	ble _080C74B4
-	movs r0, 0
-	strh r0, [r2]
-	ldrh r0, [r2, 0x2]
-	adds r0, 0x1
-	strh r0, [r2, 0x2]
-_080C74B4:
-	ldrh r0, [r2, 0x2]
-	cmp r0, 0x13
-	bne _080C74C8
-	adds r0, r3, 0
-	bl DestroyTask
-	b _080C7516
-	.align 2, 0
-_080C74C4: .4byte gTasks + 0x8
-_080C74C8:
-	ldr r1, _080C7524 @ =gUnknown_083D294C
-	movs r3, 0x2
-	ldrsh r0, [r2, r3]
-	adds r0, r1
-	movs r1, 0
-	mov r8, r1
-	movs r6, 0
-	ldrsb r6, [r0, r6]
-	adds r0, r6, 0
-	bl SetCameraPanning
-	ldr r5, _080C7528 @ =gSaveBlock1
-	ldrb r1, [r5, 0x5]
-	ldrb r2, [r5, 0x4]
-	movs r3, 0x3
-	subs r3, r6
-	movs r0, 0x3
-	str r0, [sp]
-	movs r0, 0x1
-	bl sub_805BD90
-	ldrb r1, [r5, 0x5]
-	ldrb r2, [r5, 0x4]
-	negs r3, r6
-	mov r4, r8
-	subs r4, 0x3
-	str r4, [sp]
-	movs r0, 0x2
-	bl sub_805BD90
-	ldrb r1, [r5, 0x5]
-	ldrb r2, [r5, 0x4]
-	subs r4, r6
-	mov r3, r8
-	str r3, [sp]
-	movs r0, 0x3
-	adds r3, r4, 0
-	bl sub_805BD90
-_080C7516:
-	add sp, 0x4
-	pop {r3}
-	mov r8, r3
-	pop {r4-r6}
-	pop {r0}
-	bx r0
-	.align 2, 0
-_080C7524: .4byte gUnknown_083D294C
-_080C7528: .4byte gSaveBlock1
-	thumb_func_end sub_80C7484
-
-	thumb_func_start sub_80C752C
-sub_80C752C: @ 80C752C
-	push {r4,r5,lr}
-	lsls r0, 24
-	lsrs r5, r0, 24
-	lsls r0, r5, 2
-	adds r0, r5
-	lsls r0, 3
-	ldr r1, _080C7550 @ =gTasks + 0x8
-	adds r4, r0, r1
-	movs r1, 0
-	ldrsh r0, [r4, r1]
-	cmp r0, 0x5
-	bls _080C7546
-	b _080C7698
-_080C7546:
-	lsls r0, 2
-	ldr r1, _080C7554 @ =_080C7558
-	adds r0, r1
-	ldr r0, [r0]
-	mov pc, r0
-	.align 2, 0
-_080C7550: .4byte gTasks + 0x8
-_080C7554: .4byte _080C7558
-	.align 2, 0
-_080C7558:
-	.4byte _080C7570
-	.4byte _080C75A8
-	.4byte _080C75C4
-	.4byte _080C7610
-	.4byte _080C7634
-	.4byte _080C7652
-_080C7570:
-	ldrh r0, [r4, 0x2]
-	adds r0, 0x1
-	strh r0, [r4, 0x2]
-	lsls r0, 16
-	asrs r0, 16
-	cmp r0, 0x5A
-	beq _080C7580
-	b _080C7698
-_080C7580:
-	movs r0, 0
-	bl SetCameraPanningCallback
-	movs r0, 0
-	strh r0, [r4, 0x2]
-	ldr r0, _080C75A4 @ =sub_80C72C4
-	movs r1, 0xA
-	bl CreateTask
-	lsls r0, 24
-	lsrs r0, 24
-	strh r0, [r4, 0x4]
-	movs r0, 0x1
-	strh r0, [r4]
-	movs r0, 0x31
-	bl PlaySE
-	b _080C7698
-	.align 2, 0
-_080C75A4: .4byte sub_80C72C4
-_080C75A8:
-	ldrh r0, [r4, 0x2]
-	adds r0, 0x1
-	strh r0, [r4, 0x2]
-	lsls r0, 16
-	asrs r0, 16
-	cmp r0, 0x96
-	bne _080C7698
-	bl pal_fill_black
-	movs r0, 0
-	strh r0, [r4, 0x2]
-	movs r0, 0x2
-	strh r0, [r4]
-	b _080C7698
-_080C75C4:
-	ldrh r0, [r4, 0x2]
-	adds r3, r0, 0x1
-	strh r3, [r4, 0x2]
-	ldr r0, _080C7608 @ =gPaletteFade
-	ldrb r1, [r0, 0x7]
-	movs r0, 0x80
-	ands r0, r1
-	lsls r0, 24
-	lsrs r2, r0, 24
-	cmp r2, 0
-	bne _080C7698
-	lsls r1, r3, 16
-	movs r0, 0x96
-	lsls r0, 17
-	cmp r1, r0
-	ble _080C7698
-	strh r2, [r4, 0x2]
-	ldrb r0, [r4, 0x4]
-	bl DestroyTask
-	ldr r0, _080C760C @ =sub_80C7374
-	movs r1, 0xA
-	bl CreateTask
-	lsls r0, 24
-	lsrs r0, 24
-	strh r0, [r4, 0x6]
-	movs r0, 0x3
-	strh r0, [r4]
-	movs r0, 0x32
-	bl PlaySE
-	b _080C7698
-	.align 2, 0
-_080C7608: .4byte gPaletteFade
-_080C760C: .4byte sub_80C7374
-_080C7610:
-	ldr r2, _080C7630 @ =gTasks
-	movs r0, 0x6
-	ldrsh r1, [r4, r0]
-	lsls r0, r1, 2
-	adds r0, r1
-	lsls r0, 3
-	adds r0, r2
-	ldrb r5, [r0, 0x4]
-	cmp r5, 0
-	bne _080C7698
-	bl InstallCameraPanAheadCallback
-	strh r5, [r4, 0x2]
-	movs r0, 0x4
-	strh r0, [r4]
-	b _080C7698
-	.align 2, 0
-_080C7630: .4byte gTasks
-_080C7634:
-	ldrh r0, [r4, 0x2]
-	adds r0, 0x1
-	strh r0, [r4, 0x2]
-	lsls r0, 16
-	asrs r0, 16
-	cmp r0, 0x5A
-	bne _080C7698
-	movs r0, 0x33
-	bl PlaySE
-	movs r0, 0
-	strh r0, [r4, 0x2]
-	movs r0, 0x5
-	strh r0, [r4]
-	b _080C7698
-_080C7652:
-	ldrh r0, [r4, 0x2]
-	adds r0, 0x1
-	strh r0, [r4, 0x2]
-	lsls r0, 16
-	asrs r0, 16
-	cmp r0, 0x78
-	bne _080C7698
-	movs r2, 0x82
-	lsls r2, 2
-	movs r0, 0xB
-	movs r1, 0x8
-	bl MapGridSetMetatileIdAt
-	movs r2, 0x84
-	lsls r2, 2
-	movs r0, 0xB
-	movs r1, 0x9
-	bl MapGridSetMetatileIdAt
-	movs r2, 0x86
-	lsls r2, 2
-	movs r0, 0xB
-	movs r1, 0xA
-	bl MapGridSetMetatileIdAt
-	bl DrawWholeMapView
-	movs r0, 0x34
-	bl PlaySE
-	adds r0, r5, 0
-	bl DestroyTask
-	bl ScriptContext2_Disable
-_080C7698:
-	pop {r4,r5}
-	pop {r0}
-	bx r0
-	thumb_func_end sub_80C752C
-
-	thumb_func_start sub_80C76A0
-sub_80C76A0: @ 80C76A0
-	push {lr}
-	sub sp, 0x4
-	ldr r2, _080C76E8 @ =0x0000020d
-	movs r0, 0xB
-	movs r1, 0x8
-	bl MapGridSetMetatileIdAt
-	ldr r2, _080C76EC @ =0x00000215
-	movs r0, 0xB
-	movs r1, 0x9
-	bl MapGridSetMetatileIdAt
-	ldr r2, _080C76F0 @ =0x0000021d
-	movs r0, 0xB
-	movs r1, 0xA
-	bl MapGridSetMetatileIdAt
-	bl DrawWholeMapView
-	bl ScriptContext2_Enable
-	movs r0, 0
-	str r0, [sp]
-	ldr r1, _080C76F4 @ =gPlttBufferFaded
-	ldr r2, _080C76F8 @ =0x01000100
-	mov r0, sp
-	bl CpuFastSet
-	ldr r0, _080C76FC @ =sub_80C752C
-	movs r1, 0xA
-	bl CreateTask
-	add sp, 0x4
-	pop {r0}
-	bx r0
-	.align 2, 0
-_080C76E8: .4byte 0x0000020d
-_080C76EC: .4byte 0x00000215
-_080C76F0: .4byte 0x0000021d
-_080C76F4: .4byte gPlttBufferFaded
-_080C76F8: .4byte 0x01000100
-_080C76FC: .4byte sub_80C752C
-	thumb_func_end sub_80C76A0
-
-	thumb_func_start sub_80C7700
-sub_80C7700: @ 80C7700
-	push {r4-r6,lr}
-	sub sp, 0x4
-	ldr r0, _080C774C @ =sub_80C752C
-	bl FuncIsActiveTask
-	lsls r0, 24
-	lsrs r6, r0, 24
-	cmp r6, 0
-	bne _080C7744
-	ldr r4, _080C7750 @ =gSaveBlock1
-	ldrb r1, [r4, 0x5]
-	ldrb r2, [r4, 0x4]
-	movs r0, 0x3
-	str r0, [sp]
-	movs r0, 0x1
-	movs r3, 0x3
-	bl sub_805BD90
-	ldrb r1, [r4, 0x5]
-	ldrb r2, [r4, 0x4]
-	movs r5, 0x3
-	negs r5, r5
-	str r5, [sp]
-	movs r0, 0x2
-	movs r3, 0
-	bl sub_805BD90
-	ldrb r1, [r4, 0x5]
-	ldrb r2, [r4, 0x4]
-	str r6, [sp]
-	movs r0, 0x3
-	adds r3, r5, 0
-	bl sub_805BD90
-_080C7744:
-	add sp, 0x4
-	pop {r4-r6}
-	pop {r0}
-	bx r0
-	.align 2, 0
-_080C774C: .4byte sub_80C752C
-_080C7750: .4byte gSaveBlock1
-	thumb_func_end sub_80C7700
-
-	.align 2, 0 @ Don't pad with nop.
diff --git a/data/data2.s b/data/data2.s
index f527bd91d..0fa893e83 100644
--- a/data/data2.s
+++ b/data/data2.s
@@ -7124,7 +7124,7 @@ gUnknown_08376364:: @ 8376364
 	.4byte sub_8069AA0
 	.4byte sub_8069864
 	.4byte sub_8069DD4
-	.4byte sub_80C7700
+	.4byte EndTruckSequence
 	.4byte sub_80BCF1C
 	.4byte sub_806A07C
 
@@ -15539,7 +15539,7 @@ gMapObjectPic_MovingBox: @ 83D28AC
 gMapObjectPalette19: @ 83D292C
 	.incbin "graphics/map_objects/palettes/19.gbapal"
 
-gUnknown_083D294C:: @ 83D294C
+gTruckCamera_HorizontalTable:: @ 83D294C
 	.byte  0
 	.byte  0
 	.byte  0
diff --git a/ld_script.txt b/ld_script.txt
index 180f25724..0d02748c4 100644
--- a/ld_script.txt
+++ b/ld_script.txt
@@ -130,7 +130,7 @@ SECTIONS {
         asm/field_poison.o(.text);
         asm/big_shroomish_barboach.o(.text);
         asm/fldeff_80C5CD4.o(.text);
-        asm/truck_scene.o(.text);
+        src/truck_scene.o(.text);
         asm/porthole.o(.text);
         asm/rotating_gate.o(.text);
         asm/safari_zone.o(.text);
diff --git a/src/rom4.c b/src/rom4.c
index e23e5d2fc..c70876d9a 100644
--- a/src/rom4.c
+++ b/src/rom4.c
@@ -140,7 +140,7 @@ extern void PlayerGetDestCoords(u16 *, u16 *);
 extern u8 sub_810D32C(void);
 extern u16 GetLocalWildMon(bool8 *);
 extern u16 GetMirageIslandMon(void);
-extern void sub_80C76A0(void);
+extern void ExecuteTruckSequence(void);
 extern void sub_8080B60(void);
 extern void sub_810CC80(void);
 extern void sub_8080AC4(void);
@@ -1230,7 +1230,7 @@ void CB2_NewGame(void)
     PlayTimeCounter_Start();
     ScriptContext1_Init();
     ScriptContext2_Disable();
-    gUnknown_0300485C = sub_80C76A0;
+    gUnknown_0300485C = ExecuteTruckSequence;
     do_load_map_stuff_loop(&gMain.state);
     SetFieldVBlankCallback();
     set_callback1(c1_overworld);
diff --git a/src/truck_scene.c b/src/truck_scene.c
new file mode 100644
index 000000000..915723f31
--- /dev/null
+++ b/src/truck_scene.c
@@ -0,0 +1,227 @@
+#include "global.h"
+#include "palette.h"
+#include "task.h"
+
+extern s8 gTruckCamera_HorizontalTable[];
+
+extern void SetCameraPanning(s16 a1, s16 a2);
+extern void sub_805BD90(u8 localId, u8 mapNum, u8 mapGroup, s16 x, s16 y);
+
+void Task_Truck1(u8 taskId);
+void Task_Truck2(u8 taskId);
+void Task_Truck3(u8 taskId);
+void ExecuteTruckSequence(void);
+
+s32 GetTruckCameraBobbingY(int a1)
+{
+    s32 result;
+
+    if (!(a1 % 120))
+        return -1;
+    else if ( (a1 % 10) <= 4 )
+        return 1;
+
+    return 0;
+}
+
+s32 GetTruckBoxMovement(int a1) // for the box movement?
+{
+    s32 result;
+    
+    if (!((a1 + 120) % 180))
+        return -1;
+
+    return 0;
+}
+
+void Task_Truck1(u8 taskId)
+{
+    // WIP
+    s16 *data = gTasks[taskId].data;
+    s16 cameraYpan;
+    s16 box1 = 0;
+    s16 box2 = 0;
+    s16 box3 = 0;
+    u8 mapNum, mapGroup;
+    register s16 zero asm("r4");
+
+    box1 = GetTruckBoxMovement(data[0] + 30) * 4; // box 1 happens 30 frames earlier than the other 2.
+    sub_805BD90(1, gSaveBlock1.location.mapNum, gSaveBlock1.location.mapGroup, 3, box1 + 3);
+    box2 = GetTruckBoxMovement(data[0]) * 2;
+    sub_805BD90(2, gSaveBlock1.location.mapNum, gSaveBlock1.location.mapGroup, 0, box2 - 3);
+    box3 = GetTruckBoxMovement(data[0]) * 4;
+    mapNum = gSaveBlock1.location.mapNum;
+    mapGroup = gSaveBlock1.location.mapGroup;
+    zero = 0;
+    sub_805BD90(3, mapNum, mapGroup, -3, box3);
+
+    data[0]++;
+
+    if (data[0] == 0x7530) // timer?
+        data[0] = zero;
+
+    cameraYpan = GetTruckCameraBobbingY(data[0]);
+    SetCameraPanning(0, cameraYpan);
+}
+
+void Task_Truck2(u8 taskId)
+{
+    s16 *data = gTasks[taskId].data;
+    s16 cameraYpan;
+    s16 cameraXpan;
+    s16 box1;
+    s16 box2;
+    s16 box3;
+    
+    data[0]++;
+    data[2]++;
+    
+    if (data[0] > 5)
+    {
+        data[0] = 0;
+        data[1]++;
+    }
+    if ((u16)data[1] == 19)
+    {
+        DestroyTask(taskId);
+    }
+    else
+    {
+        if (gTruckCamera_HorizontalTable[data[1]] == 2)
+            gTasks[taskId].func = Task_Truck3;
+        
+        cameraXpan = gTruckCamera_HorizontalTable[data[1]];
+        cameraYpan = GetTruckCameraBobbingY(data[2]);
+        SetCameraPanning(cameraXpan, cameraYpan);
+        box1 = GetTruckBoxMovement(data[2] + 30) * 4;
+        sub_805BD90(1, gSaveBlock1.location.mapNum, gSaveBlock1.location.mapGroup, 3 - cameraXpan, box1 + 3);
+        box2 = GetTruckBoxMovement(data[2]) * 2;
+        sub_805BD90(2, gSaveBlock1.location.mapNum, gSaveBlock1.location.mapGroup, -cameraXpan, box2 - 3);
+        box3 = GetTruckBoxMovement(data[2]) * 4;
+        sub_805BD90(3, gSaveBlock1.location.mapNum, gSaveBlock1.location.mapGroup, -3 - cameraXpan, box3);
+    }
+}
+
+void Task_Truck3(u8 taskId)
+{
+   s16 *data = gTasks[taskId].data;
+   s16 cameraXpan;
+   s16 cameraYpan;
+
+   data[0]++;
+
+   if (data[0] > 5)
+   {
+       data[0] = 0;
+       data[1]++;
+   }
+
+   if ((u16)data[1] == 19)
+   {
+       DestroyTask(taskId);
+   }
+   else
+   {
+       cameraXpan = gTruckCamera_HorizontalTable[data[1]];
+       cameraYpan = 0;
+       SetCameraPanning(cameraXpan, 0);
+       sub_805BD90(1, gSaveBlock1.location.mapNum, gSaveBlock1.location.mapGroup, 3 - cameraXpan, cameraYpan + 3);
+       sub_805BD90(2, gSaveBlock1.location.mapNum, gSaveBlock1.location.mapGroup, -cameraXpan, cameraYpan - 3);
+       sub_805BD90(3, gSaveBlock1.location.mapNum, gSaveBlock1.location.mapGroup, -3 - cameraXpan, cameraYpan);
+   }
+}
+
+void Task_HandleTruckSequence(u8 taskId)
+{
+   s16 *data = gTasks[taskId].data;
+
+   switch(data[0])
+   {
+       /*
+       Each case has a timer which is handled with data[1], incrementing
+       until it reaches the if function's condition, which sets the next task up.
+       */
+   case 0:
+       data[1]++;
+       if ( data[1] == 90 )
+       {
+           SetCameraPanningCallback(0);
+           data[1] = 0; // reset the timer.
+           data[2] = CreateTask(Task_Truck1, 0xA);
+           data[0] = 1; // run the next case.
+           PlaySE(0x31);
+       }
+       break;
+   case 1:
+       data[1]++;
+       if ( data[1] == 150 )
+       {
+           pal_fill_black();
+           data[1] = 0;
+           data[0] = 2;
+       }
+       break;
+   case 2:
+       data[1]++;
+       if(!gPaletteFade.active && data[1] > 300)
+       {
+           data[1] = 0;
+           DestroyTask(data[2]);
+           data[3] = CreateTask(Task_Truck2, 0xA);
+           data[0] = 3;
+           PlaySE(0x32);
+       }
+       break;
+   case 3:
+       if (!gTasks[data[3]].isActive) // is Truck2 no longer active (is Truck3 active?)
+       {
+           InstallCameraPanAheadCallback();
+           data[1] = 0;
+           data[0] = 4;
+       }
+       break;
+   case 4:
+       data[1]++;
+       if (data[1] == 90)
+       {
+           PlaySE(0x33);
+           data[1] = 0;
+           data[0] = 5;
+       }
+       break;
+   case 5:
+       data[1]++;
+       if (data[1] == 120)
+       {
+            MapGridSetMetatileIdAt(11, 8, 520);
+            MapGridSetMetatileIdAt(11, 9, 528);
+            MapGridSetMetatileIdAt(11, 10, 536);
+            DrawWholeMapView();
+            PlaySE(0x34);
+            DestroyTask(taskId);
+            ScriptContext2_Disable();
+       }
+       break;
+   }
+}
+
+void ExecuteTruckSequence(void)
+{
+    MapGridSetMetatileIdAt(11, 8, 525);
+    MapGridSetMetatileIdAt(11, 9, 533);
+    MapGridSetMetatileIdAt(11, 10, 541);
+    DrawWholeMapView();
+    ScriptContext2_Enable();
+    CpuFastFill(0, gPlttBufferFaded, 0x400);
+    CreateTask(Task_HandleTruckSequence, 0xA);
+}
+
+void EndTruckSequence(void)
+{
+    if(!FuncIsActiveTask(Task_HandleTruckSequence))
+    {
+        sub_805BD90(1, gSaveBlock1.location.mapNum, gSaveBlock1.location.mapGroup, 3, 3);
+        sub_805BD90(2, gSaveBlock1.location.mapNum, gSaveBlock1.location.mapGroup, 0, -3);
+        sub_805BD90(3, gSaveBlock1.location.mapNum, gSaveBlock1.location.mapGroup, -3, 0);
+    }
+}