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-rw-r--r--src/field_ground_effect.c213
1 files changed, 98 insertions, 115 deletions
diff --git a/src/field_ground_effect.c b/src/field_ground_effect.c
index 1e5f5ba20..b9935463b 100644
--- a/src/field_ground_effect.c
+++ b/src/field_ground_effect.c
@@ -32,97 +32,6 @@ void GroundEffect_HotSprings(struct MapObject *mapObj, struct Sprite *sprite);
void GroundEffect_Seaweed(struct MapObject *mapObj, struct Sprite *sprite);
u8 GetReflectionTypeByMetatileBehavior(u32 behavior);
-static const u32 sReflectionFlags[] = { 0x00000020, 0x00000010 };
-
-typedef bool8 (*MetatileFunc)(u8);
-
-static const MetatileFunc metatileFuncs[] = {
- MetatileBehavior_IsTallGrass,
- MetatileBehavior_IsLongGrass,
- MetatileBehavior_IsPuddle,
- MetatileBehavior_IsSurfableWaterOrUnderwater,
- MetatileBehavior_IsShallowFlowingWater,
- MetatileBehavior_IsATile,
-};
-
-static const u32 jumpLandingFlags[] = {
- 0x00001000, // Landing in tall grass
- 0x00002000, // Landing in long grass
- 0x00004000, // Landing on puddle
- 0x00008000, // Landing on surfable water or underwater
- 0x00004000, // Landing on shallow flowing water
- 0x00010000, // Landing on any other type of ground
-};
-
-static bool8 (*const gUnknown_08376040[])(u8) = {
- MetatileBehavior_IsJumpSouth,
- MetatileBehavior_IsJumpNorth,
- MetatileBehavior_IsJumpWest,
- MetatileBehavior_IsJumpEast,
-};
-
-static const u8 gUnknown_08376050[] = {
- 0x73, 0x73, 0x53, 0x73, 0x53, 0x73, 0x53, 0x73, 0x53, 0x73, 0x53, 0x73, 0x53, 0x00, 0x00, 0x73
-};
-
-// Each byte corresponds to a sprite priority for a field object.
-// This is directly the inverse of gFieldObjectPriorities_08376070.
-static const u8 gFieldObjectPriorities_08376060[] = {
- 2, 2, 2, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 0, 0, 2
-};
-
-// Each byte corresponds to a sprite priority for a field object.
-// This is the inverse of gFieldObjectPriorities_08376060.
-// 1 = Above player sprite
-// 2 = Below player sprite
-static const u8 gFieldObjectPriorities_08376070[] = {
- 1, 1, 1, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 0, 0, 1,
-};
-
-static void (*const gUnknown_08376080[])(struct MapObject *mapObj, struct Sprite *sprite, u8 a) = {
- nullsub, DoTracksGroundEffect_Footprints, DoTracksGroundEffect_BikeTireTracks,
-};
-
-// First byte is a Field Effect script id. (gFieldEffectScriptPointers)
-// Last three bytes are unknown.
-static const u8 gSandFootprints_FieldEffectData[] = { 0xD, 0x0, 0x18, 0x0 };
-
-// Specifies which bike track shape to show next.
-// For example, when the bike turns from up to right, it will show
-// a track that curves to the right.
-// Each 4-byte row corresponds to the initial direction of the bike, and
-// each byte in that row is for the next direction of the bike in the order
-// of down, up, left, right.
-static const u8 gBikeTireTracks_Transitions[4][4] = {
- 1, 2, 7, 8,
- 1, 2, 6, 5,
- 5, 8, 3, 4,
- 6, 7, 3, 4,
-};
-
-static void (*const gUnknown_083760A0[])(struct MapObject *mapObj, struct Sprite *sprite) = {
- GroundEffect_SpawnOnTallGrass,
- sub_8063E94,
- sub_8063EE0,
- sub_8063F2C,
- GroundEffect_WaterReflection,
- GroundEffect_IceReflection,
- GroundEffect_FlowingWater,
- sub_8063FA0,
- sub_8063FCC,
- GroundEffect_Ripple,
- GroundEffect_StepOnPuddle,
- GroundEffect_SandPile,
- GroundEffect_JumpOnTallGrass,
- GroundEffect_JumpOnLongGrass,
- GroundEffect_JumpOnShallowWater,
- GroundEffect_JumpOnWater,
- GroundEffect_JumpLandingDust,
- GroundEffect_ShortGrass,
- GroundEffect_HotSprings,
- GroundEffect_Seaweed
-};
-
static void GetAllGroundEffectFlags_OnSpawn(struct MapObject *mapObj, u32 *flags)
{
FieldObjectUpdateMetatileBehaviors(mapObj);
@@ -170,19 +79,8 @@ void FieldObjectUpdateMetatileBehaviors(struct MapObject *mapObj)
void GetGroundEffectFlags_Reflection(struct MapObject *mapObj, u32 *flags)
{
- u32 reflectionFlags[2];
- u32 a;
- u32 b;
- u8 type;
-
- // Declaring sReflectionFlags inside the function is a neater match than
- // this.
- b = sReflectionFlags[1];
- a = sReflectionFlags[0];
- reflectionFlags[0] = a;
- reflectionFlags[1] = b;
-
- type = FieldObjectCheckForReflectiveSurface(mapObj);
+ u32 reflectionFlags[2] = { 0x00000020, 0x00000010 };
+ u8 type = FieldObjectCheckForReflectiveSurface(mapObj);
if (type)
{
@@ -333,6 +231,25 @@ void GetGroundEffectFlags_Seaweed(struct MapObject *mapObj, u32 *flags)
void GetGroundEffectFlags_JumpLanding(struct MapObject *mapObj, u32 *flags)
{
+ typedef bool8 (*MetatileFunc)(u8);
+
+ static const MetatileFunc metatileFuncs[] = {
+ MetatileBehavior_IsTallGrass,
+ MetatileBehavior_IsLongGrass,
+ MetatileBehavior_IsPuddle,
+ MetatileBehavior_IsSurfableWaterOrUnderwater,
+ MetatileBehavior_IsShallowFlowingWater,
+ MetatileBehavior_IsATile,
+ };
+
+ static const u32 jumpLandingFlags[] = {
+ 0x00001000, // Landing in tall grass
+ 0x00002000, // Landing in long grass
+ 0x00004000, // Landing on puddle
+ 0x00008000, // Landing on surfable water or underwater
+ 0x00004000, // Landing on shallow flowing water
+ 0x00010000, // Landing on any other type of ground
+ };
if (mapObj->mapobj_bit_5 && !mapObj->mapobj_bit_25)
{
@@ -397,6 +314,13 @@ u8 GetReflectionTypeByMetatileBehavior(u32 behavior)
u8 GetLedgeJumpDirection(s16 x, s16 y, u8 z)
{
+ static bool8 (*const unknown_08376040[])(u8) = {
+ MetatileBehavior_IsJumpSouth,
+ MetatileBehavior_IsJumpNorth,
+ MetatileBehavior_IsJumpWest,
+ MetatileBehavior_IsJumpEast,
+ };
+
u8 b;
u8 index = z;
@@ -408,7 +332,7 @@ u8 GetLedgeJumpDirection(s16 x, s16 y, u8 z)
index--;
b = MapGridGetMetatileBehaviorAt(x, y);
- if (gUnknown_08376040[index](b) == 1)
+ if (unknown_08376040[index](b) == 1)
return index + 1;
return 0;
@@ -449,6 +373,24 @@ bool8 IsZCoordMismatchAt(u8 z, s16 x, s16 y)
return FALSE;
}
+static const u8 sUnknown_08376050[] = {
+ 0x73, 0x73, 0x53, 0x73, 0x53, 0x73, 0x53, 0x73, 0x53, 0x73, 0x53, 0x73, 0x53, 0x00, 0x00, 0x73
+};
+
+// Each byte corresponds to a sprite priority for a field object.
+// This is directly the inverse of gFieldObjectPriorities_08376070.
+static const u8 sFieldObjectPriorities_08376060[] = {
+ 2, 2, 2, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 0, 0, 2
+};
+
+// Each byte corresponds to a sprite priority for a field object.
+// This is the inverse of gFieldObjectPriorities_08376060.
+// 1 = Above player sprite
+// 2 = Below player sprite
+static const u8 sFieldObjectPriorities_08376070[] = {
+ 1, 1, 1, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 0, 0, 1,
+};
+
void FieldObjectUpdateZCoordAndPriority(struct MapObject *mapObj, struct Sprite *sprite)
{
if (mapObj->mapobj_bit_26)
@@ -456,19 +398,19 @@ void FieldObjectUpdateZCoordAndPriority(struct MapObject *mapObj, struct Sprite
FieldObjectUpdateZCoord(mapObj);
- sprite->subspriteTableNum = gFieldObjectPriorities_08376070[mapObj->elevation];
- sprite->oam.priority = gFieldObjectPriorities_08376060[mapObj->elevation];
+ sprite->subspriteTableNum = sFieldObjectPriorities_08376070[mapObj->elevation];
+ sprite->oam.priority = sFieldObjectPriorities_08376060[mapObj->elevation];
}
void InitObjectPriorityByZCoord(struct Sprite *sprite, u8 z)
{
- sprite->subspriteTableNum = gFieldObjectPriorities_08376070[z];
- sprite->oam.priority = gFieldObjectPriorities_08376060[z];
+ sprite->subspriteTableNum = sFieldObjectPriorities_08376070[z];
+ sprite->oam.priority = sFieldObjectPriorities_08376060[z];
}
u8 ZCoordToPriority(u8 z)
{
- return gFieldObjectPriorities_08376060[z];
+ return sFieldObjectPriorities_08376060[z];
}
void FieldObjectUpdateZCoord(struct MapObject *mapObj)
@@ -492,7 +434,7 @@ void SetObjectSubpriorityByZCoord(u8 a, struct Sprite *sprite, u8 b)
u32 tmpb = *(u16 *)&gSpriteCoordOffsetY;
s32 tmp2 = (tmpa - tmp) + tmpb;
u16 tmp3 = (0x10 - ((((u32)tmp2 + 8) & 0xFF) >> 4)) * 2;
- sprite->subpriority = tmp3 + gUnknown_08376050[a] + b;
+ sprite->subpriority = tmp3 + sUnknown_08376050[a] + b;
}
void FieldObjectUpdateSubpriority(struct MapObject *mapObj, struct Sprite *sprite)
@@ -605,6 +547,10 @@ void GroundEffect_FlowingWater(struct MapObject *mapObj, struct Sprite *sprite)
oe_exec_and_other_stuff(FLDEFF_FEET_IN_FLOWING_WATER, mapObj);
}
+static void (*const gUnknown_08376080[])(struct MapObject *mapObj, struct Sprite *sprite, u8 a) = {
+ nullsub, DoTracksGroundEffect_Footprints, DoTracksGroundEffect_BikeTireTracks,
+};
+
void sub_8063FA0(struct MapObject *mapObj, struct Sprite *sprite)
{
const struct MapObjectGraphicsInfo *info = GetFieldObjectGraphicsInfo(mapObj->graphicsId);
@@ -623,19 +569,33 @@ static void nullsub(struct MapObject *mapObj, struct Sprite *sprite, u8 a)
static void DoTracksGroundEffect_Footprints(struct MapObject *mapObj, struct Sprite *sprite, u8 a)
{
- u16 buf[2];
- memcpy(&buf, gSandFootprints_FieldEffectData, sizeof(gSandFootprints_FieldEffectData));
+ // First half-word is a Field Effect script id. (gFieldEffectScriptPointers)
+ u16 sandFootprints_FieldEffectData[2] = { 0xD, 0x18 };
+
gUnknown_0202FF84[0] = mapObj->coords3.x;
gUnknown_0202FF84[1] = mapObj->coords3.y;
gUnknown_0202FF84[2] = 149;
gUnknown_0202FF84[3] = 2;
gUnknown_0202FF84[4] = mapObj->mapobj_unk_18;
- FieldEffectStart(buf[a]);
+ FieldEffectStart(sandFootprints_FieldEffectData[a]);
}
static void DoTracksGroundEffect_BikeTireTracks(
struct MapObject *mapObj, struct Sprite *sprite, u8 a)
{
+ // Specifies which bike track shape to show next.
+ // For example, when the bike turns from up to right, it will show
+ // a track that curves to the right.
+ // Each 4-byte row corresponds to the initial direction of the bike, and
+ // each byte in that row is for the next direction of the bike in the order
+ // of down, up, left, right.
+ static const u8 bikeTireTracks_Transitions[4][4] = {
+ 1, 2, 7, 8,
+ 1, 2, 6, 5,
+ 5, 8, 3, 4,
+ 6, 7, 3, 4,
+ };
+
if (mapObj->coords2.x != mapObj->coords3.x || mapObj->coords2.y != mapObj->coords3.y)
{
gUnknown_0202FF84[0] = mapObj->coords3.x;
@@ -643,7 +603,7 @@ static void DoTracksGroundEffect_BikeTireTracks(
gUnknown_0202FF84[2] = 149;
gUnknown_0202FF84[3] = 2;
gUnknown_0202FF84[4] =
- gBikeTireTracks_Transitions[mapObj->mapobj_unk_20][mapObj->mapobj_unk_18 - 5];
+ bikeTireTracks_Transitions[mapObj->mapobj_unk_20][mapObj->mapobj_unk_18 - 5];
FieldEffectStart(FLDEFF_BIKE_TIRE_TRACKS);
}
}
@@ -733,6 +693,29 @@ void GroundEffect_Seaweed(struct MapObject *mapObj, struct Sprite *sprite)
FieldEffectStart(FLDEFF_BUBBLES);
}
+static void (*const gUnknown_083760A0[])(struct MapObject *mapObj, struct Sprite *sprite) = {
+ GroundEffect_SpawnOnTallGrass,
+ sub_8063E94,
+ sub_8063EE0,
+ sub_8063F2C,
+ GroundEffect_WaterReflection,
+ GroundEffect_IceReflection,
+ GroundEffect_FlowingWater,
+ sub_8063FA0,
+ sub_8063FCC,
+ GroundEffect_Ripple,
+ GroundEffect_StepOnPuddle,
+ GroundEffect_SandPile,
+ GroundEffect_JumpOnTallGrass,
+ GroundEffect_JumpOnLongGrass,
+ GroundEffect_JumpOnShallowWater,
+ GroundEffect_JumpOnWater,
+ GroundEffect_JumpLandingDust,
+ GroundEffect_ShortGrass,
+ GroundEffect_HotSprings,
+ GroundEffect_Seaweed
+};
+
void sub_8064218(struct MapObject *mapObj, struct Sprite *sprite, u32 flags)
{
u8 i;
generated by cgit v1.2.3 (git 2.25.1) at 2025-05-08 18:13:00 +0000