overworld_effect_interp.c

#include "object.h"
#include "overworld_effects.h"

// 03000FC8
u8 oe_active_list[32];

// 08083444
u32 oe_exec(u8 num) {
	u32 retval;
	oe_active_list_add(num);
	u8 *cursor = oe_table[num];
	while (oe_cmds[*cursor](&cursor, &retval));
	return retval;
}

// 0808348C
bool oec00_load_gfx(u8 **cursor, u32 *retval) {
	cursor++;
	oec00_load_gfx_impl(cursor);
	return true;
}

// 080834A0
bool oec01_load_pal(u8 **cursor, u32 *retval) {
	cursor++;
	oec01_load_pal_impl(cursor);
	return true;
}

// 080834B4
bool oec02_load_pal(u8 **cursor, u32 *retval) {
	cursor++;
	oec02_load_pal_impl(cursor);
	return true;
}

// 080834C8
bool oec03_call_asm(u8 **cursor, u32 *retval) {
	cursor++;
	oec03_call_asm_impl(cursor, retval);
	return true;
}

// 080834DC
bool oec04_end(u8 **cursor, u32 *retval) {
	return false;
}

// 080834E0
bool oec05_combined_00_01_03(u8 **cursor, u32 *retval) {
	cursor++;
	oec00_load_gfx_impl(cursor);
	oec01_load_pal_impl(cursor);
	oec03_call_asm_impl(cursor, retval);
	return true;
}

// 08083508
bool oec06_combined_00_03(u8 **cursor, u32 *retval) {
	cursor++;
	oec00_load_gfx_impl(cursor);
	oec03_call_asm_impl(cursor, retval);
	return true;
}

// 0808352C
bool oec07_combined_01_03(u8 **cursor, u32 *retval) {
	cursor++;
	oec01_load_pal_impl(cursor);
	oec03_call_asm_impl(cursor, retval);
	return true;
}

// 08083550
u32 oe_read_word(u8 **cursor) {
	u8 *src = *cursor;
	return (src[0]) + (src[1]<<8) + (src[2]<<16) + (src[3]<<24);
}

// 08083568
void oec00_load_gfx_impl(u8 **cursor) {
	gfxentry *bl = (gfxentry *)oe_read_word(cursor);
	u16 unk1 = sub_8008804(bl->size);
	if (unk1 == 0xFFFF)
		sub_80086DC(bl);
	cursor += 4;
}

// 08083598
void pal_tint(u8 num) {
	// TODO
}

// 08083614
void oec01_load_pal_impl(u8 **cursor) {
	gfxentry *bl = (gfxentry *)oe_read_word(cursor);
	u16 pal_tag = gpu_pal_tags_index_of(bl->size);
	load_palette_1(bl->data);
	if (pal_tag == 0xFF) {
		u16 pal_num = gpu_pal_tags_index_of(bl->size);
		pal_tint(pal_num);
	}
	u16 unk3 = gpu_pal_tags_index_of(bl->size);
	sub_807AA8C(unk3);
	cursor += 4;
}

// 0808365C
void oec02_load_pal_impl(u8 **cursor) {
	gfxentry *bl = (gfxentry *)oe_read_word(cursor);
	u16 unk1 = gpu_pal_tags_index_of(bl->size);
	load_palette_1(bl->data);
	if (unk1 == 0xFF) {
		u16 unk2 = gpu_pal_tags_index_of(bl->size);
		pal_tint(unk2);
	}
	cursor += 4;
}

// 08083698
void oec03_call_asm_impl(u8 **cursor, u32 *retval) {
	*retval = ((u32(*)(void))oe_read_word(cursor))();
	cursor += 4;
}

// 080836B4
void oe_stop2(struct obj *o) {
	u8  pal  = o->sprite.attr2 >> 12;
	u32 ado = o->anim_data_offset;
	obj_delete_and_free_vram(o);
	gpu_tile_obj_free_by_ado_when_unused(ado);
	gpu_pal_free_by_index_when_unused(pal);
}

// 080836D8
void oe_stop(struct obj *o, u8 num) {
	oe_stop2(o);
	oe_active_list_remove(num);
}

// 080836F0
void gpu_tile_obj_free_by_ado_when_unused_maybe(u16 tag) {
	// TODO
}

// 08083754
void gpu_pal_free_by_index_when_unused(u8 pal) {
	u16 tag = gpu_pal_tag_by_index(pal);
	for (u32 i=0; i<NUM_OBJS; i++) {
		struct obj *o = &objects[i];
		if (o->bitfield2 & OBJ_BIT2_IN_USE == 0)
			continue;
		if ((o->sprite.attr2 >> 12) == pal)
			return;
	}
	gpu_pal_free_by_tag(tag);
}

// 080837AC
void oe_active_list_clear() {
	for (u32 i=0; i<32; i++)
		oe_active_list[i] = 0xFF;
}

// 080837D0
void oe_active_list_add(u8 num) {
	for (u32 i=0; i<32; i++)
		if (oe_active_list[i] == 0xFF) {
			oe_active_list[i] = num;
			return;
		}
}

// 080837FC
void oe_active_list_remove(u8 num) {
	for (u32 i=0; i<32; i++)
		if (oe_active_list[i] == num) {
			oe_active_list[i] = 0xFF;
			return;
		}
}

// 0808382C
bool oe_active_list_contains(u8 num) {
	for (u32 i=0; i<32; i++)
		if (oe_active_list[i] == num)
			return true;
	return false;
}

// 083CBE30
bool (*oe_cmds[])(u8 **, u32 *) = {
	&oec00_load_gfx,
	&oec01_load_pal,
	&oec02_load_pal,
	&oec03_call_asm,
	&oec04_end,
	&oec05_combined_00_01_03,
	&oec06_combined_00_03,
	&oec07_combined_01_03
};