Tweak physics, cannons, nsbtp support, prepare to add items.

code/engine/cameras/cameraIngame.js

@@ -20,35 +20,48 @@ window.cameraIngame = function(kart) {
 	var lookAtOffset = [0, 16, 0]
 
 	var camNormal = [0, 1, 0];
+	var forwardNormal = null;
 	var camAngle = 0;
 	var boostOff = 0;
 
+	function tweenVec3(from, to) {
+		from[0] += (to[0]-from[0])*0.075;
+		from[1] += (to[1]-from[1])*0.075;
+		from[2] += (to[2]-from[2])*0.075;
+	}
+
 	function getView(scene) {
+		var loop = kart.physBasis != null && kart.physBasis.loop;
 		var basis = buildBasis();
+		tweenVec3(camOffset, loop ? [0, 12, -57] : [0, 32, -48]);
 		var camPos = vec3.transformMat4([], camOffset, basis);
 		var lookAtPos = vec3.transformMat4([], lookAtOffset, basis);
 
 		vec3.scale(camPos, camPos, 1/1024);
 		vec3.scale(lookAtPos, lookAtPos, 1/1024);
 
-		var mat = mat4.lookAt(mat4.create(), camPos, lookAtPos, [0, 1, 0]);
+		var mat = mat4.lookAt(mat4.create(), camPos, lookAtPos, (kart.physBasis) ? camNormal : [0, 1, 0]);
 		var kpos = vec3.clone(kart.pos);
 		if (kart.drifting && !kart.driftLanded && kart.ylock>0) kpos[1] -= kart.ylock;
 		mat4.translate(mat, mat, vec3.scale([], kpos, -1/1024));
 
 		//interpolate visual normal roughly to target
-		camNormal[0] += (kart.kartNormal[0]-camNormal[0])*0.075;
-		camNormal[1] += (kart.kartNormal[1]-camNormal[1])*0.075;
-		camNormal[2] += (kart.kartNormal[2]-camNormal[2])*0.075;
+		tweenVec3(camNormal, kart.kartNormal);
 		vec3.normalize(camNormal, camNormal);
 
-		if (kart.physBasis != null) {
+		if (loop) {
 			var kartA = kart.physicalDir+kart.driftOff/2;
 			var forward = [Math.sin(kartA), 0, -Math.cos(kartA)];
 			vec3.transformMat4(forward, forward, kart.physBasis.mat);
 			camAngle += dirDiff(Math.atan2(forward[0], -forward[2]), camAngle)*0.075;
+			if (forwardNormal == null) {
+				forwardNormal = [Math.sin(camAngle), 0, -Math.cos(camAngle)];
+			} else {
+				tweenVec3(forwardNormal, forward);
+			}
 		} else {
 			camAngle += dirDiff(kart.physicalDir+kart.driftOff/2, camAngle)*0.075;
+			forwardNormal = null;
 		}
 		camAngle = fixDir(camAngle);
 
@@ -67,8 +80,8 @@ window.cameraIngame = function(kart) {
 	function buildBasis() {
 		//order y, x, z
 		var kart = thisObj.kart;
-		var forward = [Math.sin(camAngle), 0, -Math.cos(camAngle)];
-		var side = [Math.cos(camAngle), 0, Math.sin(camAngle)];
+		var forward = (forwardNormal != null) ? forwardNormal : [Math.sin(camAngle), 0, -Math.cos(camAngle)];
+		var side = vec3.cross([], forward, camNormal);
 		/*
 		if (kart.physBasis != null) {
 			vec3.transformMat4(forward, forward, kart.physBasis.mat);