Import entities from the map and spawn them

1 files changed, 35 insertions, 2 deletions

diff --git a/tools/map.py b/tools/map.py
index 5522a9e..7e0210f 100755
--- a/tools/map.py
+++ b/tools/map.py
@@ -10,12 +10,23 @@ __version__ = "1.0"
 ld = os.environ.get("LD", "i586-pc-msdosdjgpp-ld")
 strip = os.environ.get("STRIP", "i586-pc-msdosdjgpp-strip")
 
+entity_types = ("Player",)
+
 
 def get_layer(data, name):
     for layer in data["layers"]:
         if layer["name"] == name:
             return layer
-    raise ValueError("Layer %s not found" % name)
+    raise ValueError("Layer %r not found" % name)
+
+
+def get_prop(data, name, default):
+    if "properties" not in data:
+        return default
+    for prop in data["properties"]:
+        if prop["name"] == name:
+            return prop["value"]
+    return default
 
 
 def main():
@@ -55,7 +66,29 @@ def main():
 
     out.extend(map(lambda x: (x - tileset["firstgid"]) & 0xFF, gold_layer["data"]))
 
-    # TODO: process map entities
+    entity_layer = get_layer(data, "Entities")
+
+    for ent in entity_layer["objects"]:
+        try:
+            typ = entity_types.index(ent["name"])
+        except ValueError:
+            parser.error("Entity in map %r not found in entity types" % ent["name"])
+
+        x = ent["x"] // tileset["tilewidth"]
+        y = ent["y"] // tileset["tileheight"]
+
+        flags = 0
+
+        dir = get_prop(ent, "dir", "right")
+        if dir not in ("left", "right"):
+            parser.error("Invalid value for property dir: %r" % dir)
+        if dir == "left":
+            flags |= 1
+
+        out.extend([typ, x, y, flags])
+
+        # end of entity list
+    out.append(0xFF)
 
     tmp = args.output.rstrip(".o")
     with open(tmp, "wb") as fd: