From 9add408984464bd6b3cc018bb14c3d69ad0a2898 Mon Sep 17 00:00:00 2001
From: quou <quou@disroot.org>
Date: Tue, 8 Oct 2024 19:56:08 +1100
Subject: New flying enemy that drops arrows

---
 map.c | 34 ++++++++++++++++++++++++++++++++++
 1 file changed, 34 insertions(+)

(limited to 'map.c')

diff --git a/map.c b/map.c
index 2acd988..5c0cf78 100644
--- a/map.c
+++ b/map.c
@@ -152,6 +152,7 @@ void generate_enemies(const Map* m, World* w) {
 	(m->collision[x + y * map_w] == 1 && \
 	 m->collision[x + (y - 1) * map_w] == 0)
 	int x, y, ex = map_w - 1, ey = map_h - 1;
+	/* enemies on platforms */
 	for (y = 1; y < ey; y++) {
 		for (x = 1; x < ex; x++) {
 			int plat = -1;
@@ -176,6 +177,39 @@ void generate_enemies(const Map* m, World* w) {
 			for (; check && x < ex; x++);
 		}
 	}
+	/* flying enemies */
+	for (y = 1; y < ey; y++)
+		for (x = 1; x < ex; x++) {
+			Rect rect = { 0 };
+			int i, j;
+			rect.x = x;
+			rect.y = y;
+			for (j = y; j < ey; j++) {
+				if (m->collision[i + j * map_w])
+					rect.h = 0;
+				for (i = x, rect.w = 0; i < ex && rect.h > 3; i++) {
+					if (!m->collision[i + j * map_w])
+						rect.w++;
+					if (rect.w > 4) {
+						Enemy* e;
+						e = inst_enemy(
+							w,
+							enemy_fly,
+							((x + (rect.w >> 1)) * map_tile_size) << fbits,
+							((y + (rect.h >> 1)) * map_tile_size) << fbits
+						);
+						e->face = get_r() & 1;
+						x = i;
+						y = j;
+						rect.w = 0;
+						rect.h = 0;
+						goto found;
+					}
+				}
+				rect.h++;
+			}
+			found:;
+		}
 }
 
 void generate_floor(Map* m, World* w) {
-- 
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