From cf77804e5e2f7c91373e93ac6b3c80fcb4c92ed2 Mon Sep 17 00:00:00 2001
From: Brulijam <julian@brammer.cc>
Date: Tue, 28 Nov 2023 18:40:46 +0100
Subject: [PATCH] Move in view direction when pressing 'w'

---
 Abgabe_3/main.js | 54 ++++++++++++++++++++++++++++++++++--------------
 1 file changed, 38 insertions(+), 16 deletions(-)

diff --git a/Abgabe_3/main.js b/Abgabe_3/main.js
index fe53577..9ec8ede 100644
--- a/Abgabe_3/main.js
+++ b/Abgabe_3/main.js
@@ -84,24 +84,46 @@ function main() {
 
 function move(e)
 {
-	if (e.keyCode == '87') //w
-	{
-		eye[2] = eye[2] - 0.5;
-		target[2] = target[2] - 0.5;
-	} else if (e.keyCode == '83') //s
-	{
-		eye[2] = eye[2] + 0.5;
-		target[2] = target[2] + 0.5;
-	} else if (e.keyCode == '65') //a
-	{
-		eye[0] = eye[0] - 0.5;
-		target[0] = target[0] - 0.5;
-	} else if (e.keyCode == '68') //d
-	{
-		eye[0] = eye[0] + 0.5;
-		target[0] = target[0] + 0.5;
+	if (false) {
+		if (e.keyCode == '87') //w
+		{
+			eye[2] = eye[2] - 0.5;
+			target[2] = target[2] - 0.5;
+		} else if (e.keyCode == '83') //s
+		{
+			eye[2] = eye[2] + 0.5;
+			target[2] = target[2] + 0.5;
+		} else if (e.keyCode == '65') //a
+		{
+			eye[0] = eye[0] - 0.5;
+			target[0] = target[0] - 0.5;
+		} else if (e.keyCode == '68') //d
+		{
+			eye[0] = eye[0] + 0.5;
+			target[0] = target[0] + 0.5;
+		}
+	}
+
+	if (true) {
+		let distance = Math.sqrt((target[0]-eye[0])**2 + (target[2]-eye[2])**2)
+		let moveX = ((target[0]-eye[0])/distance)/2;
+		let moveZ = ((target[2]-eye[2])/distance)/2;
+
+		if (e.keyCode == "87") { // w
+			eye[0] = eye[0] + moveX;
+			eye[2] = eye[2] + moveZ;
+			target[0] = target[0] + moveX;
+			target[2] = target[2] + moveZ;
+		} else if (e.keyCode == "65") { // a
+			console.log("key not implemented")
+		} else if (e.keyCode == "83") { // s
+			console.log("key not implemented")
+		} else if (e.keyCode == "68") { // d
+			console.log("key not implemented")
+		}
 	}
 	
+	console.log(eye[0], eye[2]);
 	//set the viewMatrix
 	const viewLoc = gl.getUniformLocation(program, "viewMatrix");
 	mat4.lookAt(viewMatrix, eye, target, up);