1 files changed, 74 insertions, 0 deletions

diff --git a/enemy.c b/enemy.c
index 5901445..467b45c 100644
--- a/enemy.c
+++ b/enemy.c
@@ -18,6 +18,8 @@ int get_enemy_hp(Enemy_Type t) {
 	switch (t) {
 		case enemy_demon:
 			return 3;
+		case enemy_fly:
+			return 2;
 	}
 	return 0;
 }
@@ -30,6 +32,12 @@ void get_enemy_rect(Enemy_Type t, Rect* d) {
 			d->w = 12;
 			d->h = 14;
 			break;
+		case enemy_fly:
+			d->x = 2;
+			d->y = 6;
+			d->w = 11;
+			d->h = 7;
+			break;
 	}
 }
 
@@ -45,6 +53,7 @@ void init_enemy(Enemy* e, Enemy_Type t, int x, int y) {
 	e->face = face_left;
 	e->state = enemy_state_patrol;
 	e->inv = 0;
+	e->timer = 0;
 }
 
 void update_enemy_anim(Enemy* e) {
@@ -214,11 +223,75 @@ void update_demon_move(Enemy* e, World* w) {
 	}
 }
 
+void update_fly_move(Enemy* e, World* w) {
+	(void)e;
+	(void)w;
+	if (e->state == enemy_state_patrol) {
+		const Map* m = &w->map;
+		const Player* p = &w->player;
+		int d2g = 0, d2c = 0, y;
+		int tx = (e->x >> fbits) / map_tile_size;
+		int ty = (e->y >> fbits) / map_tile_size;
+		for (y = ty; y < map_h; y++, d2g++)
+			if (m->collision[tx + y * map_w])
+				break;
+		for (y = ty; y >= 0; y--, d2c++)
+			if (m->collision[tx + y * map_w])
+				break;
+		ty =
+			((e->y >> fbits) + (map_tile_size >> 1)) /
+			map_tile_size;
+		if (e->face == face_left) {
+			tx = (
+				(e->x >> fbits) - (map_tile_size >> 1)) /
+				map_tile_size;
+		} else {
+			tx = (
+				(e->x >> fbits) + map_tile_size +
+				(map_tile_size >> 1)) /
+				map_tile_size;
+		}
+		if (tile_at(m, tx, ty))
+			e->face = !e->face;
+		if (d2g < 3 && d2c > 2)
+			e->vy -= 3 * (f1 / (d2g + 1));
+		e->vx = e->face == face_right? f1: -f1;
+		if (!e->grounded)
+			e->vx = (e->vx << fbits) / f1;
+		if (
+			e->timer > enemy_arrow_cooldown &&
+			p->y > e->y &&
+			absolute((e->x + f1 * 8) - (p->x + f1 * 8)) < f1 * 8
+		) {
+			Rect r;
+			r.x = 0;
+			r.y = 0;
+			r.w = 3;
+			r.h = 12;
+			e->timer = 0;
+			inst_projectile(
+				w,
+				e->x + f1 * 8,
+				e->y,
+				&r,
+				asset_id_arrow_anm
+			);
+		}
+	}
+	e->anim =
+		e->face == face_left?
+		asset_id_fly_left_anm:
+		asset_id_fly_right_anm;
+}
+
 void update_enemy_move(Enemy* e, World* w) {
 	switch (e->t) {
 		case enemy_demon:
 			update_demon_move(e, w);
 			break;
+		case enemy_fly:
+			update_fly_move(e, w);
+			break;
 	}
 }
 
@@ -227,6 +300,7 @@ int update_enemy(Enemy* e, World* w) {
 	update_enemy_hurt(e, w);
 	update_enemy_move(e, w);
 	update_enemy_phys(e, &w->map);
+	e->timer++;
 	return e->hp <= 0;
 }