From 8f6e5a1aba52b46fc20408e3064ddf60390615c0 Mon Sep 17 00:00:00 2001
From: quou <quou@disroot.org>
Date: Sat, 5 Oct 2024 15:22:44 +1000
Subject: generate enemies in teh level

---
 intermediate/rooms.bmp | Bin 2538 -> 2538 bytes
 map.c                  |  32 ++++++++++++++++++++++++++++++++
 2 files changed, 32 insertions(+)

diff --git a/intermediate/rooms.bmp b/intermediate/rooms.bmp
index b9562e4..a0bf456 100644
Binary files a/intermediate/rooms.bmp and b/intermediate/rooms.bmp differ
diff --git a/map.c b/map.c
index 41d224a..17de9a8 100644
--- a/map.c
+++ b/map.c
@@ -147,6 +147,37 @@ void generate_doors(Map* m) {
 #undef check
 #undef place
 
+void generate_enemies(const Map* m, World* w) {
+#define check \
+	(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;
+	for (y = 1; y < ey; y++) {
+		for (x = 1; x < ex; x++) {
+			int plat = -1;
+			for (; x < ex; x++)
+				if (check) {
+					plat = 0;
+					break;
+				}
+			if (!plat)
+				for (; check && x < ex; x++, plat++);
+			if (plat >= 3) {
+				Enemy* e;
+				int sx = x - (plat >> 1);
+				e = inst_enemy(
+					w,
+					enemy_demon,
+					(sx * map_tile_size) << fbits,
+					((y - 1) * map_tile_size) << fbits
+				);
+				e->face = get_r() & 1;
+			}
+			for (; check && x < ex; x++);
+		}
+	}
+}
+
 void generate_floor(Map* m, World* w) {
 	Player* p = &w->player;
 	generate_room(m);
@@ -154,6 +185,7 @@ void generate_floor(Map* m, World* w) {
 	generate_doors(m);
 	generate_floors(m);
 	generate_collision(m);
+	generate_enemies(m, w);
 	p->x = (map_w >> 1) << fbits;
 	p->y = (map_h - 2) << fbits;
 	p->x *= map_tile_size;
-- 
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