More race stuff

- Loop track type
- Simple respawn when falling off track
- col limit

code/engine/controls/controlRaceCPU.js

@@ -19,6 +19,7 @@ window.controlRaceCPU = function(nkm) {
 	}
 
 	this.fetchInput = fetchInput;
+	this.setRouteID = setRouteID;
 
 	var battleMode = (nkm.sections["EPAT"] == null);
 
@@ -53,11 +54,30 @@ window.controlRaceCPU = function(nkm) {
 
 		var dist = vec3.dot(destNorm, kart.pos) + destConst;
 		if (dist < ePoi.pointSize) advancePoint();
+		if (ePath.loop) debugger;
 
 		destPoint = vec3.add([], ePoi.pos, vec3.scale([], vec3.lerp([], posOffset, destOff, offTrans), ePoi.pointSize));
 		var dirToPt = Math.atan2(destPoint[0]-kart.pos[0], kart.pos[2]-destPoint[2]);
 
-		var diff = dirDiff(dirToPt, kart.physicalDir);
+		var physDir = kart.physicalDir;
+		if (kart.physBasis) {
+			if (kart.physBasis.loop) { 
+				return {
+					accel: true, //x
+					decel: false, //z
+					drift: false, //s
+					item: false, //a
+
+					//-1 to 1, intensity.
+					turn: 0,
+					airTurn: 0 //air excitebike turn, doesn't really have much function
+				};
+			}
+			var forward = [Math.sin(physDir), 0, -Math.cos(physDir)];
+			vec3.transformMat4(forward, forward, kart.physBasis.mat);
+			var physDir = Math.atan2(forward[0], -forward[2]);
+		}
+		var diff = dirDiff(dirToPt, physDir);
 		var turn = Math.min(Math.max(-1, (diff*3)), 1);
 
 		offTrans += 1/240;
@@ -94,6 +114,11 @@ window.controlRaceCPU = function(nkm) {
 
 	}
 
+	function setRouteID(routeID) {
+		ePoiInd = routeID-1
+		advancePoint();
+	}
+
 	function advancePoint() {
 		if (++ePoiInd < ePath.startInd+ePath.pathLen) {
 			//next within this path