added COllisionManager

src/engine/collision/Mesh.java

@@ -26,14 +26,14 @@ public class Mesh {
             return false;
 
         //character moving is higher than the max Y of this mesh
-        if(charHeight < this.meshHeight)
+        if(charHeight > this.meshHeight)
             return false;
 
         for(Triangle tri : triangles)
             if(tri.collides(line))
                 return true;
 
-        //characters movement path did not intersect this triangle
+        //characters movement path did not intersect this mesh
         return false;
     }
 }