hexgrid: created formula to determine offset

love/hexgrid/main.lua

@@ -1,9 +1,16 @@
-function createHex()
+function createHex(centerX, centerY)
 	local hex = {}
-  hex.centerX = 300
-	hex.centerY = 300
+  hex.centerX = centerX
+	hex.centerY = centerY
 	hex.size = 45
 
+--The height is size *2
+--The width is sqrt(3)/2 * height
+--Horizontal distance between two hexes is horiz = width
+  
+	hex.height = hex.size * 2
+	hex.width = math.sqrt(3)/2 * hex.height
+
 	local lastX = nil
 	local lastY = nil
 	
@@ -23,6 +30,8 @@ function createHex()
 
 	end
 
+
+
 	return hex
 end
 
@@ -36,10 +45,31 @@ end
 
 function love.draw()
 	love.graphics.setColor({255,255,255,255})
-	hex1=createHex()
+	
+	--create our first hex #note: this will all end up 
+	--in a single for loop to draw a complete grid
+	temp=createHex (300,300)
+	hex1=createHex(0+temp.width,0+temp.height)
 
 	for i=1, #hex1.sides do
 		love.graphics.line(unpack(hex1.sides[i]))
 	end
   
+	--Here we create another hex and place it to the side
+	newCenterX = hex1.centerX + hex1.width
+	hex2=createHex(newCenterX,hex1.centerY)
+
+	for i=1, #hex2.sides do
+		love.graphics.line(unpack(hex2.sides[i]))
+	end
+
+	-- Here we want to move down a row and base it from the first hex
+	newCenterY = hex1.centerY+(hex1.height * 3/4)
+	newCenterX = (hex1.centerX + hex2.centerX)/2
+	hex3 = createHex(newCenterX, newCenterY)
+
+	for i=1, #hex3.sides do
+		love.graphics.line(unpack(hex3.sides[i]))
+	end
+
 end