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#include "global.h"
#include "field_ground_effect.h"
#include "fieldmap.h"
#include "metatile_behavior.h"
extern u32 gUnknown_08376008[];
void GetAllGroundEffectFlags_OnSpawn(struct MapObject *mapObj, u32 *flags)
{
FieldObjectUpdateMetatileBehaviors(mapObj);
GetGroundEffectFlags_Reflection(mapObj, flags);
GetGroundEffectFlags_TallGrassOnSpawn(mapObj, flags);
GetGroundEffectFlags_LongGrassOnSpawn(mapObj, flags);
GetGroundEffectFlags_SandPile(mapObj, flags);
GetGroundEffectFlags_ShallowFlowingWater(mapObj, flags);
GetGroundEffectFlags_ShortGrass(mapObj, flags);
GetGroundEffectFlags_HotSprings(mapObj, flags);
}
void GetAllGroundEffectFlags_OnBeginStep(struct MapObject *mapObj, u32 *flags)
{
FieldObjectUpdateMetatileBehaviors(mapObj);
GetGroundEffectFlags_Reflection(mapObj, flags);
GetGroundEffectFlags_TallGrassOnBeginStep(mapObj, flags);
GetGroundEffectFlags_LongGrassOnBeginStep(mapObj, flags);
GetGroundEffectFlags_Tracks(mapObj, flags);
GetGroundEffectFlags_SandPile(mapObj, flags);
GetGroundEffectFlags_ShallowFlowingWater(mapObj, flags);
GetGroundEffectFlags_Puddle(mapObj, flags);
GetGroundEffectFlags_ShortGrass(mapObj, flags);
GetGroundEffectFlags_HotSprings(mapObj, flags);
}
void GetAllGroundEffectFlags_OnFinishStep(struct MapObject *mapObj, u32 *flags)
{
FieldObjectUpdateMetatileBehaviors(mapObj);
GetGroundEffectFlags_ShallowFlowingWater(mapObj, flags);
GetGroundEffectFlags_SandPile(mapObj, flags);
GetGroundEffectFlags_Puddle(mapObj, flags);
GetGroundEffectFlags_Ripple(mapObj, flags);
GetGroundEffectFlags_ShortGrass(mapObj, flags);
GetGroundEffectFlags_HotSprings(mapObj, flags);
GetGroundEffectFlags_Seaweed(mapObj, flags);
GetGroundEffectFlags_JumpLanding(mapObj, flags);
}
void FieldObjectUpdateMetatileBehaviors(struct MapObject *mapObj)
{
mapObj->mapobj_unk_1F = MapGridGetMetatileBehaviorAt(mapObj->coords3.x, mapObj->coords3.y);
mapObj->mapobj_unk_1E = MapGridGetMetatileBehaviorAt(mapObj->coords2.x, mapObj->coords2.y);
}
void GetGroundEffectFlags_Reflection(struct MapObject *mapObj, u32 *flags)
{
u32 reflectionFlags[2] = { 0x00000020, 0x00000010 };
u8 type = FieldObjectCheckForReflectiveSurface(mapObj);
if (type)
{
if (!mapObj->mapobj_bit_17)
{
mapObj->mapobj_bit_17 = 0;
mapObj->mapobj_bit_17 = 1;
*flags |= reflectionFlags[type - 1];
}
}
else
{
mapObj->mapobj_bit_17 = 0;
}
}
void GetGroundEffectFlags_TallGrassOnSpawn(struct MapObject *mapObj, u32 *flags)
{
if (MetatileBehavior_IsTallGrass(mapObj->mapobj_unk_1E))
*flags |= 0x1;
}
void GetGroundEffectFlags_TallGrassOnBeginStep(struct MapObject *mapObj, u32 *flags)
{
if (MetatileBehavior_IsTallGrass(mapObj->mapobj_unk_1E))
*flags |= 0x2;
}
void GetGroundEffectFlags_LongGrassOnSpawn(struct MapObject *mapObj, u32 *flags)
{
if (MetatileBehavior_IsLongGrass(mapObj->mapobj_unk_1E))
*flags |= 0x4;
}
void GetGroundEffectFlags_LongGrassOnBeginStep(struct MapObject *mapObj, u32 *flags)
{
if (MetatileBehavior_IsLongGrass(mapObj->mapobj_unk_1E))
*flags |= 0x8;
}
void GetGroundEffectFlags_Tracks(struct MapObject *mapObj, u32 *flags)
{
if (MetatileBehavior_IsDeepSand(mapObj->mapobj_unk_1F))
{
*flags |= 0x100;
}
else if (MetatileBehavior_IsSandOrDeepSand(mapObj->mapobj_unk_1F)
|| MetatileBehavior_IsUnusedFootprintMetatile(mapObj->mapobj_unk_1F))
{
*flags |= 0x80;
}
}
void GetGroundEffectFlags_SandPile(struct MapObject *mapObj, u32 *flags)
{
if (MetatileBehavior_IsDeepSand(mapObj->mapobj_unk_1E)
&& MetatileBehavior_IsDeepSand(mapObj->mapobj_unk_1F))
{
if (!mapObj->mapobj_bit_20)
{
mapObj->mapobj_bit_20 = 0;
mapObj->mapobj_bit_20 = 1;
*flags |= 0x800;
}
}
else
{
mapObj->mapobj_bit_20 = 0;
}
}
void GetGroundEffectFlags_ShallowFlowingWater(struct MapObject *mapObj, u32 *flags)
{
if ((MetatileBehavior_IsShallowFlowingWater(mapObj->mapobj_unk_1E) && MetatileBehavior_IsShallowFlowingWater(mapObj->mapobj_unk_1F))
|| (MetatileBehavior_IsPacifidlogLog(mapObj->mapobj_unk_1E) && MetatileBehavior_IsPacifidlogLog(mapObj->mapobj_unk_1F)))
{
if (!mapObj->mapobj_bit_19)
{
mapObj->mapobj_bit_19 = 0;
mapObj->mapobj_bit_19 = 1;
*flags |= 0x40;
}
}
else
{
mapObj->mapobj_bit_19 = 0;
}
}
void GetGroundEffectFlags_Puddle(struct MapObject *mapObj, u32 *flags)
{
if (MetatileBehavior_IsPuddle(mapObj->mapobj_unk_1E)
&& MetatileBehavior_IsPuddle(mapObj->mapobj_unk_1F))
{
*flags |= 0x400;
}
}
void GetGroundEffectFlags_Ripple(struct MapObject *mapObj, u32 *flags)
{
if (MetatileBehavior_HasRipples(mapObj->mapobj_unk_1E))
*flags |= 0x200;
}
void GetGroundEffectFlags_ShortGrass(struct MapObject *mapObj, u32 *flags)
{
if (MetatileBehavior_IsShortGrass(mapObj->mapobj_unk_1E)
&& MetatileBehavior_IsShortGrass(mapObj->mapobj_unk_1F))
{
if (!mapObj->mapobj_bit_18)
{
mapObj->mapobj_bit_18 = 0;
mapObj->mapobj_bit_18 = 1;
*flags |= 0x20000;
}
}
else
{
mapObj->mapobj_bit_18 = 0;
}
}
void GetGroundEffectFlags_HotSprings(struct MapObject *mapObj, u32 *flags)
{
if (MetatileBehavior_IsHotSprings(mapObj->mapobj_unk_1E)
&& MetatileBehavior_IsHotSprings(mapObj->mapobj_unk_1F))
{
if (!mapObj->mapobj_bit_21)
{
mapObj->mapobj_bit_21 = 0;
mapObj->mapobj_bit_21 = 1;
*flags |= 0x40000;
}
}
else
{
mapObj->mapobj_bit_21 = 0;
}
}
void GetGroundEffectFlags_Seaweed(struct MapObject *mapObj, u32 *flags)
{
if (MetatileBehavior_IsSeaweed(mapObj->mapobj_unk_1E))
*flags |= 0x80000;
}
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)
{
u8 i;
for (i = 0; i < 6; i++)
{
if (metatileFuncs[i](mapObj->mapobj_unk_1E))
{
*flags |= jumpLandingFlags[i];
return;
}
}
}
}
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