From 3b747f93d44cdc8e0eb450e2a4f73d0bfab26ce5 Mon Sep 17 00:00:00 2001
From: BKcore <thibaut.despoulain@bkcore.com>
Date: Sat, 27 Oct 2012 18:30:20 +0200
Subject: [PATCH] Changed bkcore.hexgl.RaceData format to array 2D, improving
 perf and fixing object cloning issue.

---
 bkcore/hexgl/RaceData.js | 58 ++++++++++++++--------------------------
 1 file changed, 20 insertions(+), 38 deletions(-)

diff --git a/bkcore/hexgl/RaceData.js b/bkcore/hexgl/RaceData.js
index 4640dc8..7100435 100644
--- a/bkcore/hexgl/RaceData.js
+++ b/bkcore/hexgl/RaceData.js
@@ -22,18 +22,24 @@ bkcore.hexgl.RaceData = function(track, mode, shipControls)
 	this.seek = 0;
 
 	this._p = new THREE.Vector3();
+	this._pp = new THREE.Vector3();
+	this._np = new THREE.Vector3();
 	this._q = new THREE.Quaternion();
+	this._pq = new THREE.Quaternion();
+	this._nq = new THREE.Quaternion();
 }
 
 bkcore.hexgl.RaceData.prototype.tick = function(time)
 {
 	if(this.rateState == 1)
 	{
-		this.data.push(new bkcore.hexgl.RaceTick(
+		var p = this.shipControls.getPosition();
+		var q = this.shipControls.getQuaternion();
+		this.data.push([
 			time,
-			this.shipControls.getPosition(),
-			this.shipControls.getQuaternion()
-		));
+			p.x, p.y, p.z,
+			q.x, q.y, q.z, q.w
+		]);
 		++this.last;
 	}
 	else if(this.rateState == this.rate)
@@ -50,6 +56,8 @@ bkcore.hexgl.RaceData.prototype.applyInterpolated = function(time)
 		++this.seek;
 
 	var prev = this.data[this.seek];
+	this._pp.set(prev[1], prev[2], prev[3]);
+	this._pq.set(prev[4], prev[5], prev[6], prev[7]);
 
 	if(this.seek < 0)
 	{
@@ -63,9 +71,12 @@ bkcore.hexgl.RaceData.prototype.applyInterpolated = function(time)
 
 	// interpolation
 	var next = this.data[this.seek+1];
-	var t = (time-prev.time) / (next.time-prev.time);
-	this._p.copy(prev.position).lerpSelf(next.position, t);
-	this._q.copy(prev.quaternion).slerpSelf(next.quaternion, t);
+	this._np.set(next[1], next[2], next[3]);
+	this._nq.set(next[4], next[5], next[6], next[7]);
+
+	var t = (time-prev[0]) / (next[0]-prev[0]);
+	this._p.copy(this._pp).lerpSelf(this._np, t);
+	this._q.copy(this._pq).slerpSelf(this._nq, t);
 	
 	this.shipControls.teleport(this._p, this._q);
 }
@@ -77,39 +88,10 @@ bkcore.hexgl.RaceData.prototype.reset = function()
 
 bkcore.hexgl.RaceData.prototype.export = function()
 {
-	var exp = [];
-	for(var i = 0; i <= this.last; i++)	exp.push(
-			[this.data[i].time,
-			this.data[i].position.x,
-			this.data[i].position.y,
-			this.data[i].position.z,
-			this.data[i].quaternion.x,
-			this.data[i].quaternion.y,
-			this.data[i].quaternion.z,
-			this.data[i].quaternion.w]
-		);
-
-	return exp;
+	return this.data;
 }
 
 bkcore.hexgl.RaceData.prototype.import = function(imp)
 {
-	this.data = [];
-	for(var i = 0; i < imp.length; i++)
-	{
-		this.data.push(new bkcore.hexgl.RaceTick(
-			imp[i][0],
-			new THREE.Vector3(imp[i][1], imp[i][2], imp[i][3]),
-			new THREE.Quaternion(imp[i][4], imp[i][5], imp[i][6], imp[i][7])
-		));
-	}
-
-	return exp;
-}
-
-bkcore.hexgl.RaceTick = function(time, position, quaternion)
-{
-	this.time = time;
-	this.position = position;
-	this.quaternion = quaternion;
+	this.data = imp;
 }
\ No newline at end of file