From e6acd440824ad9e72f8961b2bf36bab1e99016ae Mon Sep 17 00:00:00 2001
From: DrJamgo <drjamgo@hotmail.com>
Date: Sun, 12 May 2019 11:38:28 +0200
Subject: [PATCH] FIX: Fixing convertTileToPixel function for hex tiles

- covertToPixel now works for hex tiles properly
- Tested with various options
- different hex side lengths
- stagger axis x/y
---
 sti/init.lua | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/sti/init.lua b/sti/init.lua
index 4d3988f..f3539c8 100644
--- a/sti/init.lua
+++ b/sti/init.lua
@@ -1115,15 +1115,18 @@ function Map:convertTileToPixel(x,y)
 		local tileW   = self.tilewidth
 		local tileH   = self.tileheight
 		local sideLen = self.hexsidelength or 0
+		local even    = self.staggerindex == "even" and 1 or 0
 
 		if self.staggeraxis == "x" then
+			local colW = tileW - (tileW  - sideLen) / 2
 			return
-				x * tileW,
-				ceil(y) * (tileH + sideLen) + (ceil(y) % 2 == 0 and tileH or 0)
+				(x-1) * colW,
+				ceil(y-1) * (tileH) + (ceil(x) % 2 == even and tileH / 2 or 0)
 		else
+			local rowH = tileH - (tileH - sideLen) / 2
 			return
-				ceil(x) * (tileW + sideLen) + (ceil(x) % 2 == 0 and tileW or 0),
-				y * tileH
+				ceil(x-1) * (tileW) + (ceil(y) % 2 == even and tileW / 2 or 0),
+				(y-1) * rowH
 		end
 	end
 end