Plane: some functionality and debugging

entities/debug.lua

@@ -0,0 +1,22 @@
+class = require 'hump.class'
+
+DebugVector = Class {
+    init = function(self, x0 , y0, dx, dy)
+        self.x0 = x0;
+        self.y0 = y0;
+        self.dx = dx;
+        self.dy = dy;
+    end;
+
+
+    draw = function(self)
+        love.graphics.setColor(255, 0, 0)
+        love.graphics.line(self.x0, self.y0, self.x0 + self.dx, self.y0 + self.dy);
+    end;
+}
+
+drawDebugVectors = function(debugVectors) 
+    for key, debugVector in pairs(debugVectors) do
+        debugVector:draw();
+    end
+end;