From da07cde3f683a2e52528d48ed4632b8ceff85744 Mon Sep 17 00:00:00 2001
From: Gary Martin <gary@garycmartin.com>
Date: Sun, 23 Aug 2009 16:26:53 +0000
Subject: Poly tool now supports single click clones but with slight behaviour change.

Poly tool needed a slight behaviour tool if it was to support single click
duplicates of the previous shape created (just like all other shape tools)
as the behaviour previoulsy allowed a single click to place the first point.
Poly tool now needs a hold and drag operation to start it off. Not 100% in
favour of this but it is now consistant with other tools and has the ability
to duplicate.
---
diff --git a/tools.py b/tools.py
index cac982e..136896b 100644
--- a/tools.py
+++ b/tools.py
@@ -195,21 +195,34 @@ class PolygonTool(Tool):
     def handleEvents(self,event):
         #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:
-                if event.button == 1:
-                    if not self.vertices:
-                        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
-                    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
+            if event.type == MOUSEBUTTONDOWN and event.button == 1 and self.vertices is None:
+                self.vertices = [event.pos]
+                self.safe = False
+            if event.type == MOUSEBUTTONUP and event.button == 1 and self.vertices is not None and len(self.vertices) == 1 and event.pos[0] == self.vertices[0][0] and event.pos[1] == self.vertices[0][1]:
+                if self.previous_vertices is not None:
+                    last_x_y = self.previous_vertices[-1]
+                    delta_x = last_x_y[0] - event.pos[0]
+                    delta_y = last_x_y[1] - event.pos[1]
+                    self.vertices = [[i[0] - delta_x, i[1] - delta_y]
+                                                for i in self.previous_vertices]
+                    self.safe = True
+                    self.game.world.add.complexPoly(self.vertices, dynamic=True, density=1.0, restitution=0.16, friction=0.5)
+                self.vertices = None
+            elif (event.type == MOUSEBUTTONUP or event.type == MOUSEBUTTONDOWN) and event.button == 1:
+                if self.vertices is None or (event.pos[0] == self.vertices[-1][0] and event.pos[1] == self.vertices[-1][1]):
+                    # Skip if coordinate is same as last one
+                    return
+                if 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.previous_vertices = self.vertices[:]
+                    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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