From 12b849c6686d72250efa04d8b3445f2b7e936a32 Mon Sep 17 00:00:00 2001
From: Sakse Dalum <don.s@artescient.at>
Date: Wed, 8 Aug 2012 16:46:26 +0200
Subject: [PATCH] Added a rolling boulder.

---
 robotgame/boulder.py | 64 ++++++++++++++++++++++++++++++++++++++++++++
 robotgame/level1.py  | 28 +++++++++++++++++++
 2 files changed, 92 insertions(+)
 create mode 100644 robotgame/boulder.py

diff --git a/robotgame/boulder.py b/robotgame/boulder.py
new file mode 100644
index 0000000..73047da
--- /dev/null
+++ b/robotgame/boulder.py
@@ -0,0 +1,64 @@
+# This file is part of ROBOTGAME
+#
+# ROBOTGAME is free software: you can redistribute it and/or modify it under the
+# terms of the GNU General Public License as published by the Free Software
+# Foundation, either version 3 of the License, or (at your option) any later
+# version.
+#
+# ROBOTGAME is distributed in the hope that it will be useful, but WITHOUT ANY
+# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+# A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along with
+# ROBOTGAME.  If not, see <http://www.gnu.org/licenses/>.
+#
+# ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' '
+#
+#                          boulder.py
+#                     --------------------
+#       date created : Wed Aug 8 2012
+#          copyright : (C) 2012 Sakse Dalum
+#      maintained by : Sakse Dalum <don_s@hongabar.org>
+
+"""
+A rolling boulder.
+"""
+
+import pygame
+
+import worldobject
+
+class Boulder(worldobject.WorldObject):
+    def __init__(self, level, x, y, movable=True, rolling=True):
+        self.__dict__.update(locals())
+        worldobject.WorldObject.__init__(self, level, x, y,
+                                         movable=movable, speed=1)
+
+        self.anim = 'boulder_right'
+        self.frame = 0
+        self.anim_speed = 30
+
+    def update(self, e, t, dt):
+        # Update the animation
+        self.frame = ((self.frame + self.anim_speed * dt) %
+                      len(self.level.imgs[self.anim]))
+
+        if self.direction == (1, 0):
+            self.anim = 'boulder_right'
+        if self.direction == (0, 1):
+            self.anim = 'boulder_down'
+        if self.direction == (-1, 0):
+            self.anim = 'boulder_left'
+        if self.direction == (0, -1):
+            self.anim = 'boulder_up'
+
+        self.move(*self.direction)
+
+        worldobject.WorldObject.update(self, e, t, dt)
+
+    def draw(self, window):
+        self.img = self.level.imgs[self.anim][int(self.frame)]
+        window.blit(self.img, (self.x - 32 - self.level.camera_x,
+                               self.y - self.img.get_size()[1] + 24
+                               - self.level.camera_y))
+
diff --git a/robotgame/level1.py b/robotgame/level1.py
index 583551b..2438276 100644
--- a/robotgame/level1.py
+++ b/robotgame/level1.py
@@ -27,11 +27,13 @@ The first level.
 import os
 import pygame
 import random
+import re
 
 import level
 import player
 import tile
 import block
+import boulder
 
 class Level1(level.Level):
     def __init__(self, game, graphics_dir, paused=False):
@@ -50,6 +52,8 @@ class Level1(level.Level):
                                             self.imgs['block1'],
                                             movable=True))
 
+        self.objects.append(boulder.Boulder(self, 64, 48))
+
     def load(self):
         """Load all resources used in the level."""
         tile_list = ['ground1', 'ground2']
@@ -63,5 +67,29 @@ class Level1(level.Level):
             self.imgs[block] = pygame.image.load(os.path.join(
                     self.graphics_dir, 'blocks', '%s.png' % block))
 
+        # Load animations
+        for anim, directory in (
+            [('boulder_up', os.path.join('boulder', 'up')),
+             ('boulder_down', os.path.join('boulder', 'down')),
+             ('boulder_right', os.path.join('boulder', 'right')),
+             ('boulder_left', os.path.join('boulder', 'right'))]
+            ):
+
+            self.imgs[anim] = []
+
+            # Find all image files for the given animation
+            anim_files = []
+            for root, dirs, files in os.walk(os.path.join(
+                    self.graphics_dir, directory)):
+                for f in files:
+                    if re.match(r"^.*\.(png)$", '/'.join([root, f])):
+                        anim_files.append('/'.join([root, f]))
+
+            # Sort and load the files
+            for f in sorted(anim_files):
+                img = pygame.image.load(f)
+
+                self.imgs[anim].append(img)
+
     def restart(self):
         self.player.reset_pos()