Tweak level loading code

[erdslangetjie.git] / erdslangetjie / level.py

diff --git a/erdslangetjie/level.py b/erdslangetjie/level.py
index a2c2a2dadc1b8044676574d8c60d9134e84b6b5a..645a62f7678aca49f89f85a024dbaf4cc9ecd327 100644 (file)
--- a/erdslangetjie/level.py
+++ b/erdslangetjie/level.py
@@ -7,16 +7,24 @@ class Level(object):
 
     def __init__(self):
         self.data = []
+        self.exit_pos = []
+        self.enter_pos = None
+        self.tiles = []
 
     def load(self, levelfile):
         """Load the level"""
         self.data = []
-        for line in levelfile.readlines():
-            self.data.append(list(line))
+        # Because of how kivy's coordinate system works,
+        # we reverse the lines so things match up between
+        # the file and the display (top of file == top of display)
+        for line in reversed(levelfile.readlines()):
+            self.data.append(list(line.strip('\n')))
 
-    def get_tiles(self):
-        """Return a list of tiles for the level"""
-        tiles = []
+    def load_tiles(self):
+        """Load the list of tiles for the level"""
+        self.tiles = []
+        self.exit_pos = []
+        self.enter_pos = None
         for j, line in enumerate(self.data):
             tile_line = []
             for i, c in enumerate(line):
@@ -25,6 +33,30 @@ class Level(object):
                 elif c == '.':
                     tile_line.append(load_image('tiles/wall.bmp'))
                 elif c == 'E' or c == 'X':
+                    if c == 'E':
+                        if self.enter_pos:
+                            raise RuntimeError('Multiple entry points')
+                        self.enter_pos = (i, j)
+                    else:
+                        self.exit_pos.append((i, j))
                     tile_line.append(load_image('tiles/door.bmp'))
-            tiles.append(tile_line)
-        return tiles
+            self.tiles.append(tile_line)
+
+    def get_tiles(self):
+        return self.tiles
+
+    def at_exit(self, pos):
+        return pos in self.exit_pos
+
+    def blocked(self, pos):
+        if pos[0] < 0:
+            return True
+        if pos[1] < 0:
+            return True
+        try:
+            tile = self.data[pos[1]][pos[0]]
+        except IndexError:
+            return True
+        if tile == '.':
+            return True
+        return False