added boundingbox

box.py

@@ -0,0 +1,72 @@
+class BoundingBox:
+    
+    def __init__(self, origin = (0,0,0), size = (0,0,0)):
+        self._origin, self._size = list(origin),list(size)
+    
+    def getMinx(self): return self.origin[0];
+    def getMiny(self): return self.origin[1];
+    def getMinz(self): return self.origin[2];
+    
+    def getMaxx(self): return self.origin[0]+self.size[0];
+    def getMaxy(self): return self.origin[1]+self.size[1];
+    def getMaxz(self): return self.origin[2]+self.size[2];
+    
+    minx = property(getMinx);
+    miny = property(getMiny);
+    minz = property(getMinz);
+    
+    maxx = property(getMaxx);
+    maxy = property(getMaxy);
+    maxz = property(getMaxz);
+    
+    def getMincx(self): return self.origin[0]>>4;
+    def getMincz(self): return self.origin[2]>>4;
+    
+    def getMaxcx(self): return ((self.origin[0]+self.size[0]-1)>>4)+1;
+    def getMaxcz(self): return ((self.origin[2]+self.size[2]-1)>>4)+1;
+    
+    mincx = property(getMincx, None, None, "The smallest chunk position contained in this box");
+    mincz = property(getMincz, None, None, "The smallest chunk position contained in this box");
+    
+    maxcx = property(getMaxcx, None, None, "The largest chunk position contained in this box");
+    maxcz = property(getMaxcz, None, None, "The largest chunk position contained in this box");
+    
+    def getOrigin(self): return self._origin;
+    def setOrigin(self, o): self._origin = list(o);
+    
+    def getSize(self): return self._size;
+    def setSize(self, s): self._size = list(s);
+    
+    origin = property(getOrigin, setOrigin)
+    size = property(getSize, setSize)
+    
+    def getWidth(self): return self._size[0];
+    def getHeight(self): return self._size[1];
+    def getLength(self): return self._size[2];
+    
+    def setWidth(self, w): self.size[0] = w;
+    def setHeight(self, h): self.size[1] = h;
+    def setLength(self, l): self.size[2] = l;
+    
+    width = property(getWidth, setWidth, None, "The dimension along the X axis");
+    height = property(getHeight, setHeight, None, "The dimension along the Y axis");
+    length = property(getLength, setLength, None, "The dimension along the Z axis");
+    
+    
+    def getMaximum(self): return map(lambda a,b:a+b, self._origin, self._size)
+    
+    maximum = property(getMaximum, None, None, "The endpoint of the box; origin plus size.")
+    
+    def getVolume(self): return map(int.__mul__, self.size)
+    volume = property(getVolume, None, None, "The volume of the box in blocks")
+    
+    def __contains__(self, pos):
+        x,y,z = pos;
+        if x<self.minx or x>=self.maxx: return False
+        if y<self.miny or y>=self.maxy: return False
+        if z<self.minz or z>=self.maxz: return False
+        
+        return True;
+        
+    def __repr__(self):
+        return "BoundingBox({0}, {1})".format(self.origin, self.size)