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/**
* @file slime.c
* @ingroup Enemies
*
* @brief Slime enemy
*/
#include "enemy.h"
#include "physics.h"
#include "room.h"
typedef struct {
/*0x00*/ Entity base;
/*0x68*/ u8 unused1[28];
/*0x84*/ u8 unk_84;
} SlimeEntity;
typedef struct {
s8 h, v;
} PACKED PosOffset;
void sub_08044FF8(SlimeEntity* this);
void Slime_OnTick(SlimeEntity* this);
void Slime_OnCollision(SlimeEntity* this);
void Slime_OnGrabbed(SlimeEntity* this);
void sub_08044FC8(SlimeEntity* this);
void sub_08044FF8(SlimeEntity* this);
void sub_08045018(SlimeEntity* this);
void sub_08045088(SlimeEntity* this);
void sub_080450A8(SlimeEntity* this);
void sub_08045178(SlimeEntity* this, Entity*, int, int);
static void (*const Slime_Functions[])(SlimeEntity*) = {
Slime_OnTick,
Slime_OnCollision,
(void (*)(SlimeEntity*))GenericKnockback,
(void (*)(SlimeEntity*))GenericDeath,
(void (*)(SlimeEntity*))GenericConfused,
Slime_OnGrabbed,
};
void Slime(SlimeEntity* this) {
EnemyFunctionHandler(super, (EntityActionArray)Slime_Functions);
EnemySetFXOffset(super, 0, 1, -12);
}
void Slime_OnTick(SlimeEntity* this) {
static void (*const actionFuncs[])(SlimeEntity*) = {
sub_08044FC8, sub_08044FF8, sub_08045018, sub_08045088, sub_080450A8,
};
actionFuncs[super->action](this);
}
void Slime_OnCollision(SlimeEntity* this) {
if ((super->health != 0) && (this->unk_84 != super->health)) {
super->action = 4;
} else {
EnemyFunctionHandlerAfterCollision(super, Slime_Functions);
}
if (super->confusedTime != 0) {
EnemyCreateFX(super, FX_STARS);
}
}
void Slime_OnGrabbed(SlimeEntity* this) {
}
void sub_08044FC8(SlimeEntity* this) {
super->action = 1;
super->spriteSettings.draw = 1;
super->speed = 128;
sub_0804A720(super);
InitializeAnimation(super, 0);
sub_08044FF8(this);
}
void sub_08044FF8(SlimeEntity* this) {
super->action = 2;
super->timer = (Random() & 0x1F) + 30;
this->unk_84 = super->health;
}
void sub_08045018(SlimeEntity* this) {
GetNextFrame(super);
if (--super->timer == 0) {
super->action = 3;
super->timer = 1;
if (0 < super->speed) {
super->timer = FixedDiv(0x1000, super->speed) >> 8;
}
if (sub_08049FA0(super) == 0 && (Random() & 3)) {
super->direction = (sub_08049EE4(super) + 0xfc + (Random() & 8)) & 24;
return;
}
super->direction = Random() & 24;
}
}
void sub_08045088(SlimeEntity* this) {
ProcessMovement0(super);
GetNextFrame(super);
if (--super->timer == 0) {
super->action = 1;
}
}
/* Split slime into new ones */
void sub_080450A8(SlimeEntity* this) {
Entity* entities[4];
Entity* entity;
s32 count, i;
const PosOffset* off;
static const u8 typeEntityCount[4] = { 2, 2, 4, 2 };
static const PosOffset gUnk_080D16D4[4] = { { 6, 0 }, { -6, 0 }, { 0, 6 }, { 0, -6 } };
/* Can we create enough new entities? */
count = typeEntityCount[super->type];
if (MAX_ENTITIES - count <= gEntCount)
return;
/* Create 2-4 new MiniSlime */
for (i = 0; i < count; i++)
entities[i] = CreateEnemy(MINI_SLIME, super->type);
off = gUnk_080D16D4;
for (i = 0; i < count; i++) {
entity = entities[i];
entity->child = entities[(i + 1) % count];
entity->parent = entities[(i + count - 1) % count];
entity->type2 = 1;
entity->z.HALF.HI = 0;
entity->iframes = -0x10;
/* Set MiniSlime offset relative to killed slime. */
sub_08045178(this, entity, off->h, off->v);
off++;
}
entity = CreateFx(super, FX_DEATH, 0);
if (entity != NULL)
CopyPosition(super, entity);
DeleteEntity(super);
}
void sub_08045178(SlimeEntity* this, Entity* child, int offsetX, int offsetY) {
int x, y;
if (child == NULL)
return;
EnemyCopyParams(super, child);
if (GetCollisionDataRelativeTo(child, offsetX, offsetY))
return;
x = child->x.HALF.HI + offsetX;
if (0 <= x && x < (gRoomControls.origin_x + gRoomControls.width))
child->x.HALF.HI = x;
y = child->y.HALF.HI + offsetY;
if (0 <= y && y < (gRoomControls.origin_y + gRoomControls.height))
child->y.HALF.HI = y;
}
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