dt-based movement stuff

2 files changed, 20 insertions, 12 deletions

diff --git a/public/assets/javascripts/app.js b/public/assets/javascripts/app.js
index f8372cd..cfbe4bf 100644
--- a/public/assets/javascripts/app.js
+++ b/public/assets/javascripts/app.js
@@ -57,11 +57,14 @@ app.launch = function () {
 	}
 	app.movements.init()
 	
+	var last_t = 0
 	function animate (t) {
+		var dt = t - last_t
+		last_t = t
 		requestAnimationFrame(animate)
 		environment.update(t)
 		window.path && path.update(t)
-		app.movements.update()
+		app.movements.update(dt || 0)
 		scene.update()
 	}
 
diff --git a/public/assets/javascripts/mx/extensions/mx.movements.js b/public/assets/javascripts/mx/extensions/mx.movements.js
index 386819a..6b082d1 100644
--- a/public/assets/javascripts/mx/extensions/mx.movements.js
+++ b/public/assets/javascripts/mx/extensions/mx.movements.js
@@ -254,7 +254,7 @@ MX.Movements = function (cam) {
       }
 		},
 
-		update: function () {
+		update: function (dt) {
 
 			if (locked) { return }
 			
@@ -263,6 +263,11 @@ MX.Movements = function (cam) {
 			var vrrrr = creeping ? vr * creepFactor * 5 : vr * 0.5
 			var moving = moveForward || moveBackward || moveRight || moveLeft || moveUp || moveDown || turnLeft || turnRight || turnUp || turnDown
 			vx = vz = 0
+			
+			var vv = v
+// 			vv *= dt / 100  * 8
+// 			s *= dt / 100  * 8
+// 			console.log(dt / 100  * 8)
 
 			pos.x = cam.x
 			pos.z = cam.z
@@ -270,26 +275,26 @@ MX.Movements = function (cam) {
 			if (moving) {
 
 				if (moveForward) {
-					vx += v * Math.cos(ry + Math.PI / 2) * s
-					vz += v * Math.sin(ry + Math.PI / 2) * s
+					vx += vv * Math.cos(ry + Math.PI / 2) * s
+					vz += vv * Math.sin(ry + Math.PI / 2) * s
 				}
 				if (moveBackward) {
-					vx -= v * Math.cos(ry + Math.PI / 2) * s
-					vz -= v * Math.sin(ry + Math.PI / 2) * s
+					vx -= vv * Math.cos(ry + Math.PI / 2) * s
+					vz -= vv * Math.sin(ry + Math.PI / 2) * s
 				}
 				if (moveLeft) {
-					vx -= v * Math.cos(ry) * s
-					vz -= v * Math.sin(ry) * s
+					vx -= vv * Math.cos(ry) * s
+					vz -= vv * Math.sin(ry) * s
 				}
 				if (moveRight) {
-					vx += v * Math.cos(ry) * s
-					vz += v * Math.sin(ry) * s
+					vx += vv * Math.cos(ry) * s
+					vz += vv * Math.sin(ry) * s
 				}
 				if (moveUp) {
-					pos.y += v * scale
+					pos.y += vv * scale
 				}
 				if (moveDown) {
-					pos.y -= v * scale
+					pos.y -= vv * scale
 				}
 
 				if (turnUp) {