Links Awakening: Implement New Game (#1334)

Adds Link's Awakening: DX. Fully imports and forks LADXR, with permission - https://github.com/daid/LADXR

worlds/ladx/LADXR/mapgen/enemygen.py

@@ -0,0 +1,59 @@
+from .tileset import walkable_tiles, entrance_tiles
+import random
+
+
+ENEMIES = {
+    "mountains": [
+        (0x0B,),
+        (0x0E,),
+        (0x29,),
+        (0x0E, 0x0E),
+        (0x0E, 0x0E, 0x23),
+        (0x0D,), (0x0D, 0x0D),
+    ],
+    "egg": [],
+    "basic": [
+        (), (), (), (), (), (),
+        (0x09,), (0x09, 0x09),  # octorock
+        (0x9B, 0x9B), (0x9B, 0x9B, 0x1B),  # slimes
+        (0xBB, 0x9B),  # bush crawler + slime
+        (0xB9,),
+        (0x0B, 0x23),  # likelike + moblin
+        (0x14, 0x0B, 0x0B),  # moblins + sword
+        (0x0B, 0x23, 0x23),  # likelike + moblin
+        (0xAE, 0xAE),  # flying octorock
+        (0xBA, ),  # Bomber
+        (0x0D, 0x0D), (0x0D, ),
+    ],
+    "town": [
+        (), (), (0x6C, 0x6E), (0x6E,), (0x6E, 0x6E),
+    ],
+    "forest": [
+        (0x0B,),  # moblins
+        (0x0B, 0x0B),  # moblins
+        (0x14, 0x0B, 0x0B),  # moblins + sword
+    ],
+    "beach": [
+        (0xC6, 0xC6),
+        (0x0E, 0x0E, 0xC6),
+        (0x0E, 0x0E, 0x09),
+    ],
+    "water": [],
+}
+
+
+def generate_enemies(room):
+    options = ENEMIES[room.tileset_id]
+    if not options:
+        return
+    positions = []
+    for y in range(1, 7):
+        for x in range(1, 9):
+            if room.tiles[x + y * 10] in walkable_tiles and room.tiles[x + (y - 1) * 10] not in entrance_tiles:
+                positions.append((x, y))
+    for type_id in random.choice(options):
+        if not positions:
+            return
+        x, y = random.choice(positions)
+        positions.remove((x, y))
+        room.entities.append((x, y, type_id))