#include "common.h"

typedef struct struct802E3F0C {
    /* 0x00 */ char unk_00[10];
    /* 0x0A */ u16 unk_A;
    /* 0x0C */ char unk_C[4];
    /* 0x10 */ s16 unk_10;
    /* 0x12 */ s16 unk_12;
} struct802E3F0C;

void entity_ItemBlock_idle(Entity* entity) {
    entity_base_block_idle(entity);
}

void entity_HiddenItemBlock_idle(Entity* entity) {
    s32 alpha = entity->alpha;

    if (gPlayerStatus.animFlags & 1) {
        alpha += 32;
        if (alpha > 192) {
            alpha = 192;
        }
        entity->alpha = alpha;
    } else {
        alpha -= 32;
        if (alpha <= 0) {
            alpha = 0;
        }
        entity->alpha = alpha;
    }
}

INCLUDE_ASM(s32, "105700_len_2130", entity_HitItemBlock_appear);

INCLUDE_ASM(void, "105700_len_2130", entity_ItemBlock_spawn_item, Entity* entity);

void entity_TriggerBlock_start_bound_script_2(Entity* entity) {
    entity_start_script(entity);
}

void entity_TriggerBlock_play_vanish_effect(Entity* entity) {
    D_802EB3B0 = playFX_6F(0, entity->position.x, entity->position.y, entity->position.z, 1.0f, 0x3C);
}

void entity_HitItemBlock_play_anim(Entity* entity) {
    s32 entityType = get_entity_type(entity->listIndex);

    if (entityType == 0x12 || entityType == 0x14) {
        play_model_animation(entity->virtualModelIndex, &D_00000094);
    } else {
        play_model_animation(entity->virtualModelIndex, &D_00000094_2);
    }
}

void entity_HitItemBlock_show_inactive(Entity* entity) {
    Entity* someEntity; // TODO: better var name
    Shadow* someShadow; // TODO: better var name
    struct802E3F0C* temp = entity->dataBuf;

    someEntity = get_entity_by_index(temp->unk_12);
    someEntity->flags &= ~1;
    someShadow = get_shadow_by_index(someEntity->shadowIndex);
    someShadow->flags &= ~1;
}

void entity_ItemBlock_check_if_inactive(Entity* entity) {
    struct802E3F0C* temp = entity->dataBuf;

    if ((temp->unk_A != 0xFFFF) && get_global_flag(temp->unk_A)) {
        UNK_PTR phi_a0;

        if (get_entity_type(entity->listIndex) != 0x14) {
            phi_a0 = &D_802EA07C;
        } else {
            phi_a0 = &D_802EA0A0;
        }
        create_entity(phi_a0, entity->position.x, entity->position.y, entity->position.z, entity->rotation.y, 0x80000000);
        set_entity_commandlist(entity, &D_802EA310);
    } else {
        exec_entity_commandlist(entity);
    }
}

void entity_ItemBlock_replace_with_inactive(Entity* entity) {
    s32 entityType = get_entity_type(entity->listIndex);
    UNK_PTR entityData = &D_802EA07C;
    s32 entityIndex;
    s32 temp_s0;
    s32 entityType2;
    struct802E3F0C* temp;
    Entity* entityTemp;
    Shadow* shadow;

    if (entityType < 0x15) {
        entityData = &D_802EA07C;
        if (entityType >= 0x12) {
            entityData = &D_802EA0A0;
        }
    }

    entityIndex = create_entity(entityData, entity->position.x, entity->position.y, entity->position.z, entity->rotation.y,
                                0x80000000);
    entityTemp = get_entity_by_index(entityIndex);
    entityTemp->flags |= 1;

    if (entity->flags & 0x40000) {
        entityTemp->flags |= 0x40000;
    }

    if (entity->flags & 4) {
        entityTemp->flags |= 4;
    }

    shadow = get_shadow_by_index(entityTemp->shadowIndex);
    shadow->flags |= 0x400001;
    temp_s0 = is_block_on_ground(entity);

    entityType2 = get_entity_type(entity->listIndex);
    if (entityType2 == 0x12 || entityType2 == 0x14) {
        entityData = &D_802EA660;
    } else if (temp_s0 != 0) {
        entityData = &D_802EA618;
    } else {
        entityData = &D_802EA63C;
    }
    entityTemp = get_entity_by_index(create_entity(entityData, entity->position.x, entity->position.y, entity->position.z,
                                     entity->rotation.y, 0x80000000));
    entityTemp->alpha = entity->alpha;
    if ((entity->flags & 1) || (entity->alpha < 0xFF)) {
        entityTemp->alpha = 0x20;
    }

    if (entity->flags & 0x40000) {
        entityTemp->flags |= 0x40000;
    }

    temp = entityTemp->dataBuf;
    temp->unk_12 = entityIndex;

    if (entity->flags & 4) {
        entityTemp->flags |= 4;
    }

    entity->flags &= ~0x100;
    shadow = get_shadow_by_index(entity->shadowIndex);
    shadow->flags |= 0x10000001;
    shadow = get_shadow_by_index(entityTemp->shadowIndex);
    shadow->flags |= 0x400000;
}

void entity_HitItemBlock_hide(Entity* entity) {
    entity->flags |= 1;
    entity->flags &= ~0x100;
    get_shadow_by_index(entity->shadowIndex)->flags |= 0x10000001;
}

s32 entity_TriggerBlock_start_bound_script(Entity* entity) {
    if (entity->boundScriptBytecode != NULL) {
        entity->flags |= 0x1000000;
        return TRUE;
    }
    return FALSE;
}

// TODO: new file here?
void entity_TriggerBlock_disable_player_input(void) {
    disable_player_input();
    gPlayerStatus.currentSpeed = 0.0f;
    gPlayerStatus.flags |= 0x800000;
    set_action_state(8);
    gravity_use_fall_parms();
}

void entity_TriggerBlock_enable_player_input(void) {
    enable_player_input();
}

void entity_ItemBlock_setupGfx(s32 entityIndex) {
    Gfx* gfx = gMasterGfxPos;
    Entity* entity = get_entity_by_index(entityIndex);

    gDPSetTextureLUT(gfx++, G_TT_NONE);
    gSPTexture(gfx++, -1, -1, 0, G_TX_RENDERTILE, G_ON);

    if (entity->alpha >= 255) {
        gDPSetRenderMode(gfx++, G_RM_AA_ZB_OPA_SURF, G_RM_AA_ZB_OPA_SURF2);
        gDPSetCombineMode(gfx++, G_CC_MODULATEIA, G_CC_MODULATEIA);
    } else {
        gDPSetCombineLERP(gfx++, 0, 0, 0, TEXEL0, PRIMITIVE, 0, TEXEL0, 0, 0, 0, 0, TEXEL0, TEXEL0, 0, PRIMITIVE, 0);
        gDPSetPrimColor(gfx++, 0, 0, 0, 0, 0, entity->alpha);
    }

    gMasterGfxPos = gfx;
}

void entity_ItemBlock_init(Entity* entity) {
    struct802E3650* temp;

    entity_base_block_init(entity);
    temp = entity->dataBuf;
    temp->unk_10 = D_8015C7D2;
    temp->unk_0A = 0xFFFF;
    entity->renderSetupFunc = entity_ItemBlock_setupGfx;
}

void entity_HiddenItemBlock_init(Entity* entity) {
    entity_ItemBlock_init(entity);
    entity->alpha = 0;
}

void entity_ItemlessBlock_init(Entity* entity) {
    AnimatedMesh* animMesh;

    entity_base_block_init(entity);
    entity->renderSetupFunc = entity_ItemBlock_setupGfx;
    animMesh = get_animator_by_index(entity->virtualModelIndex);
    animMesh->renderMode = 0x11;
    animMesh->flags |= 0x10000;
}