love: added square grid example;added hex example

love/from_forums/draw_hex_example/main.lua

@@ -0,0 +1,20 @@
+
+hex = {}
+hex.centerX = 200
+hex.centerY = 200
+hex.size = 45
+function love.draw()
+	love.graphics.setColor({255,255,255})
+	local lastX = nil
+	local lastY = nil
+	for i=0,6 do
+		local angle = 2 * math.pi / 6 * (i + 0.5)
+		local x = hex.centerX + hex.size * math.cos(angle)
+		local y = hex.centerY + hex.size * math.sin(angle)
+		if i > 0 then
+			love.graphics.line(lastX, lastY, x, y)
+		end
+		lastX = x
+		lastY = y
+	end
+end