sm64/src/game/behaviors/skeeter.inc.c

struct Struct80331C38 {
    s16 unk00;
    s16 unk02;
};

struct ObjectHitbox sSkeeterHitbox = {
    /* interactType:      */ INTERACT_BOUNCE_TOP,
    /* downOffset:        */ 20,
    /* damageOrCoinValue: */ 2,
    /* health:            */ 0,
    /* numLootCoins:      */ 3,
    /* radius:            */ 180,
    /* height:            */ 100,
    /* hurtboxRadius:     */ 150,
    /* hurtboxHeight:     */ 90,
};

struct Struct80331C38 D_80331C38[] = {
    { 0xFF7E, 0xFF42 },
    { 0x0082, 0xFF42 },
    { 0xFF4C, 0x0082 },
    { 0x00B4, 0x0082 },
};

static void skeeter_spawn_waves(void) {
    s32 i;

    for (i = 0; i < 4; i++) {
        spawn_object_relative_with_scale(0, D_80331C38[i].unk00, 0, D_80331C38[i].unk02, 0.8f, o,
                                         MODEL_IDLE_WATER_WAVE, bhvSkeeterWave);
    }
}

static void skeeter_act_idle(void) {
    if (o->oMoveFlags & OBJ_MOVE_MASK_ON_GROUND) {
        cur_obj_init_animation_with_sound(3);
        o->oForwardVel = 0.0f;

        if (o->oTimer > o->oSkeeterWaitTime && cur_obj_check_if_near_animation_end()) {
            o->oAction = SKEETER_ACT_WALK;
        }
    } else {
        cur_obj_init_animation_with_sound(1);

        if (o->oMoveFlags & OBJ_MOVE_AT_WATER_SURFACE) {
            skeeter_spawn_waves();
            if (o->oTimer > 60
                && obj_smooth_turn(&o->oSkeeterUnk1AC, &o->oMoveAngleYaw, o->oSkeeterTargetAngle, 0.02f,
                                   5, 50, 200)) {
                if (o->oSkeeterWaitTime != 0) {
                    o->oSkeeterWaitTime -= 1;
                } else if (cur_obj_check_if_near_animation_end()) {
                    cur_obj_play_sound_2(SOUND_OBJ_WALKING_WATER);
                    o->oAction = SKEETER_ACT_LUNGE;
                    o->oForwardVel = 80.0f;
                    o->oSkeeterUnk1AC = 0;
                }
            }
        }
    }
}

static void skeeter_act_lunge(void) {
    if (!(o->oMoveFlags & OBJ_MOVE_AT_WATER_SURFACE)) {
        o->oAction = SKEETER_ACT_IDLE;
    } else {
        skeeter_spawn_waves();
        cur_obj_init_animation_with_sound(0);

        if (o->oMoveFlags & OBJ_MOVE_HIT_WALL) {
            o->oMoveAngleYaw = cur_obj_reflect_move_angle_off_wall();
            o->oForwardVel *= 0.3f;
            o->oFlags &= ~0x00000008;
        }

        if (obj_forward_vel_approach(0.0f, 0.8f) && cur_obj_check_if_at_animation_end()) {
            o->oMoveAngleYaw = o->oFaceAngleYaw;

            if (o->oDistanceToMario >= 25000.0f) {
                o->oSkeeterTargetAngle = o->oAngleToMario;
            } else {
                o->oSkeeterTargetAngle = obj_random_fixed_turn(random_u16() % 0x2000);
            }

            o->oAction = SKEETER_ACT_IDLE;
            o->oSkeeterWaitTime = random_linear_offset(0, 30);
            o->oFlags |= 0x00000008;
        }
    }
}

static void skeeter_act_walk(void) {
    f32 sp24;

    if (!(o->oMoveFlags & OBJ_MOVE_MASK_ON_GROUND)) {
        o->oAction = SKEETER_ACT_IDLE;
    } else {
        obj_forward_vel_approach(o->oSkeeterUnkFC, 0.4f);
        sp24 = 0.12f * o->oForwardVel;

        cur_obj_init_animation_with_accel_and_sound(2, sp24);
        cur_obj_play_sound_at_anim_range(3, 13, SOUND_OBJ_SKEETER_WALK);

        if (o->oSkeeterUnkF8 != 0) {
            o->oSkeeterUnkF8 = obj_resolve_collisions_and_turn(o->oSkeeterTargetAngle, 0x400);
        } else {
            if (o->oDistanceToMario >= 25000.0f) {
                o->oSkeeterTargetAngle = o->oAngleToMario;
                o->oSkeeterWaitTime = random_linear_offset(20, 30);
            }

            if ((o->oSkeeterUnkF8 = obj_bounce_off_walls_edges_objects(&o->oSkeeterTargetAngle)) == 0) {
                if (o->oDistanceToMario < 500.0f) {
                    o->oSkeeterTargetAngle = o->oAngleToMario;
                    o->oSkeeterUnkFC = 20.0f;
                } else {
                    o->oSkeeterUnkFC = 10.0f;
                    if (o->oSkeeterWaitTime != 0) {
                        o->oSkeeterWaitTime -= 1;
                    } else if (cur_obj_check_if_near_animation_end() != 0) {
                        if (random_u16() & 0x0003) {
                            o->oSkeeterTargetAngle = obj_random_fixed_turn(0x2000);
                            o->oSkeeterWaitTime = random_linear_offset(100, 100);
                        } else {
                            o->oAction = SKEETER_ACT_IDLE;
                            o->oSkeeterWaitTime = random_linear_offset(100, 100);
                        }
                    }
                }
            }
        }

        cur_obj_rotate_yaw_toward(o->oSkeeterTargetAngle, 0x400);
    }
}

void bhv_skeeter_update(void) {
    o->oDeathSound = SOUND_OBJ_SNUFIT_SKEETER_DEATH;
    treat_far_home_as_mario(1000.0f);

    cur_obj_update_floor_and_walls();

    switch (o->oAction) {
        case SKEETER_ACT_IDLE:
            skeeter_act_idle();
            break;
        case SKEETER_ACT_LUNGE:
            skeeter_act_lunge();
            break;
        case SKEETER_ACT_WALK:
            skeeter_act_walk();
            break;
    }

    obj_check_attacks(&sSkeeterHitbox, o->oAction);
    cur_obj_move_standard(-78);
}

void bhv_skeeter_wave_update(void) {
    if (approach_f32_ptr(&o->header.gfx.scale[0], 0.0f, 0.3f)) {
        obj_mark_for_deletion(o);
    }

    cur_obj_scale(o->header.gfx.scale[0]);
    o->oAnimState = gGlobalTimer / 6;
}