From 56b86d85ae9158c58552fe0c65801d79dbe2e91c Mon Sep 17 00:00:00 2001
From: Gary Martin <gary@garycmartin.com>
Date: Sun, 21 Jun 2009 20:11:12 +0000
Subject: Fixed polygon tool to prevent small polys and avoid the crash.

---
(limited to 'tools.py')

diff --git a/tools.py b/tools.py
index 190e8a8..89420c4 100644
--- a/tools.py
+++ b/tools.py
@@ -168,27 +168,38 @@ class PolygonTool(Tool):
         #look for default events, and if none are handled then try the custom events 
         if not super(PolygonTool,self).handleEvents(event):
             if event.type == MOUSEBUTTONDOWN:
+                # Solid poly
                 if event.button == 1:
                     if not self.vertices:
-                        self.vertices=[event.pos]  
-                    elif distance(event.pos,self.vertices[0]) < 15:                     
+                        self.vertices=[event.pos]
+                        self.safe = False
+                    elif distance(event.pos,self.vertices[0]) < 15 and self.safe:                     
                         self.vertices.append(self.vertices[0]) #connect the polygon
                         self.game.world.add.complexPoly(self.vertices, dynamic=True, density=1.0, restitution=0.16, friction=0.5)                    
-                        self.vertices = None  
+                        self.vertices = None
+                    elif distance(event.pos,self.vertices[0]) < 15:
+                        self.vertices = None
                     else:
                         self.vertices.append(event.pos)
-                        
+                        if distance(event.pos,self.vertices[0]) >= 55 and self.vertices:
+                            self.safe = True
+
+                # Polygon of triangles
                 elif event.button == 3:
                     if not self.vertices:
-                        self.vertices=[event.pos]  
-                    elif distance(event.pos,self.vertices[0]) < 15:                     
-                        #self.vertices.append(self.vertices[0]) #connect the polygon
+                        self.vertices=[event.pos]
+                        self.safe = False
+                    elif distance(event.pos,self.vertices[0]) < 15 and self.safe:                     
                         gons = decomposePoly(self.vertices)
                         for g in gons:
                             self.game.world.add.convexPoly(g, dynamic=True, density=1.0, restitution=0.16, friction=0.5)
                         self.vertices = None
+                    elif distance(event.pos,self.vertices[0]) < 15:
+                        self.vertices = None
                     else:
                         self.vertices.append(event.pos)
+                        if distance(event.pos,self.vertices[0]) >= 55 and self.vertices:
+                            self.safe = True
                                 
     def draw(self):
         # draw the poly being created
--
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