From 6b7ff7e86d813543a889c9cfec9d4dda66be60a0 Mon Sep 17 00:00:00 2001
From: Nathan DECHER <nathan.decher@gmail.com>
Date: Thu, 26 Mar 2020 10:47:22 +0100
Subject: [PATCH] added touchscreen support

---
 src/js/main.js | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/src/js/main.js b/src/js/main.js
index 35e82a4..71b4f54 100644
--- a/src/js/main.js
+++ b/src/js/main.js
@@ -108,4 +108,16 @@
 		else if(e.key=='ArrowRight') inputs.right=true;
 	});
 
+	window.addEventListener('touchstart', e => {
+		let x=e.touches[0].clientX/window.innerWidth-.5;
+		let y=e.touches[0].clientY/window.innerHeight-.5;
+		const angle=((Math.atan2(x, y)+2*Math.PI)%(2*Math.PI))/Math.PI;
+
+		let inputs=currentInputs;
+		if(angle>.25 && angle <.75) inputs.right=true;
+		else if(angle>.75 && angle<1.25) inputs.up=true;
+		else if(angle>1.25 && angle<1.75) inputs.left=true;
+		else inputs.down=true;
+	});
+
 })();