solved issue: #1

pacman.py

@@ -20,8 +20,15 @@
 # rectangle around pacman
 pacmanrect = pacman.get_rect()
 
-# pacman not moving initially
-moving = False
+# pacman not moving or touching walls initially
+move_left = False
+move_right = False
+move_up = False
+move_down = False
+touch_left = False
+touch_right = False
+touch_top = False
+touch_bottom = False
 
 # the game loop
 while 1:
@@ -30,23 +37,54 @@
         if event.type == pygame.QUIT: sys.exit()
         if event.type == pygame.KEYDOWN:
             if event.key == pygame.K_LEFT:
-                moving = True
-                speed = [-8, 0]
+                move_left = True
+                # moving left ensures not touching right wall
+                touch_right = False
+                # set all other directions to be false
+                move_right = False
+                move_up = False
+                move_down = False
             if event.key == pygame.K_RIGHT:
-                moving = True
-                speed = [8, 0]
+                move_right = True
+                touch_left = False
+                # set all other directions to be false
+                move_left = False
+                move_down = False
+                move_up = False
             if event.key == pygame.K_UP:
-                moving = True
-                speed = [0, -8]
+                move_up = True
+                touch_bottom = False
+                # set all other directions to be false
+                move_right = False
+                move_left = False
+                move_down = False
             if event.key == pygame.K_DOWN:
-                moving = True
-                speed = [0, 8]
-    if moving:
-        pacmanrect = pacmanrect.move(speed)
-    if pacmanrect.left < 0 or pacmanrect.right > width:
-        moving = False
-    if pacmanrect.top < 0 or pacmanrect.bottom > height:
-        moving = False
+                move_down = True
+                touch_top = False
+                # set all other directions to be false
+                move_up = False
+                move_left = False
+                move_right = False
+    if move_left and not touch_left:
+        pacmanrect = pacmanrect.move([-8,0])
+    if move_right and not touch_right:
+        pacmanrect = pacmanrect.move([8,0])
+    if move_up and not touch_top:
+        pacmanrect = pacmanrect.move([0, -8])
+    if move_down and not touch_bottom:
+        pacmanrect = pacmanrect.move([0, 8])
+    if pacmanrect.left < 0:
+        move_left = False
+        touch_left = True
+    if pacmanrect.right > width:
+        move_right = False
+        touch_right = True
+    if pacmanrect.top < 0:
+        move_top = False
+        touch_top = True
+    if pacmanrect.bottom > height:
+        move_bottom = False
+        touch_bottom = True
 
     screen.fill(black)
     screen.blit(pacman, pacmanrect)