iTween.MoveTo(exhibitObject, iTween.Hash(
    "position", presenterTransform.position,
    "time", reloadDelay,
    "islocal", false,
    "easetype", iTween.EaseType.easeOutQuad
));

using UnityEngine;
using System.Collections;

public class RealtimeCubemap : MonoBehaviour {

    public int cubemapSize = 128;
    public bool oneFacePerFrame = false;
    private Camera cam;
    private RenderTexture rtex;
    private GameObject go;

    [ExecuteInEditMode]
    void Start() {
        // render all six faces at startup
        UpdateCubemap(63);
    }

    void LateUpdate() {
        if (oneFacePerFrame) {
            int faceToRender = Time.frameCount % 6;
            int faceMask = 1 << faceToRender;
            UpdateCubemap(faceMask);
        } else {
            UpdateCubemap(63); // all six faces
        }
    }

    void UpdateCubemap(int faceMask) {
        if (!cam) {
            go = new GameObject("CubemapCamera");
            go.AddComponent(typeof(Camera));
            go.hideFlags = HideFlags.HideAndDontSave;
            go.transform.position = transform.position;
            go.transform.rotation = Quaternion.identity;
            cam = go.camera;
            cam.farClipPlane = 100; // don't render very far into cubemap
            cam.enabled = false;
        }

        if (!rtex) {    
            rtex = new RenderTexture(cubemapSize, cubemapSize, 16);
            rtex.isCubemap = true;
            rtex.hideFlags = HideFlags.HideAndDontSave;
            renderer.sharedMaterial.SetTexture ("_Cube", rtex);
        }

        cam.transform.position = transform.position;
        cam.RenderToCubemap(rtex, faceMask);
    }

    void OnDisable() {
        DestroyImmediate (cam);
        DestroyImmediate (rtex);
    }
}

using System;
using System.Collections;

...

// formatted float with three zero padded digits
// in front of the "." and three digits after it.
debugText += String.Format("H{0:000.000}\n", heading);

// formatted int with formats for positive;negative;zero values
debugText += String.Format("S{0:+000;-000; 000}\n", speed);

/* setup vectors */
 Vector3 l1begin = playerCurrentPosition;
 Vector3 l1end = playerTargetPosition - l1begin;
 Vector3 l2begin = enemyCurrentPosition;
 Vector3 l2end = enemyTargetPosition - l2begin;

/* calculate vectors */
 Vector3 n = Vector3.Cross(l1end, l2end);
 Vector3 u = Vector3.Cross(n, l1begin - l2begin) / Vector3.Dot(n, n);
 Vector3 intersection1 = l1begin - l1end * Vector3.Dot(l2end, u);
 Vector3 intersection2 = l2begin - l2end * Vector3.Dot(l1end, u);

/* draw vectors */
 Debug.DrawRay(l1begin, l1end, Color.cyan);
 Debug.DrawRay(l2begin, l2end, Color.magenta);
 Debug.DrawLine(intersection1, intersection2, Color.white);

Vector3 lTarget = transform.InverseTransformPoint(target.position);
targetDistance = lTarget.magnitude;
targetAngle = Mathf.Atan2(lTarget.x, lTarget.z) * Mathf.Rad2Deg;


• This calculates the position in relation to the current objects local coordinate system.
• It then calculates the distance (because you’ll need it anyway).
• Finally it calculates the angle in radians and then converts it to degrees, just for good measure.

Debug.DrawRay(transform.position, transform.rotation * Vector3.forward, Color.red);

This also effectively rotates the forward-vector with the rotation of the transform, positioning it relative to the rotation of the actual object.

I tried to build the track from separate segments which I wanted to combine in Unity but it was quite tricky building all parts in Lightwave and then getting them to fit in Unity. Therefore I prebuilt the track and imported it as one model in Unity. This should also be better for lightmapping, surfacing, etc. but I’m still quite far away from that.

I also added lap-tracking and repositioning of the player (if you get stuck). The turbo will also not be unlimited anymore, which is now indicated by a couple of dials on the right side of the display.

SCR003

Controls are as follows:
Cursor keys: Steering, throttle and brakes
Ctrl.: Turbo
Space: Reposition vehicle

You’ll need the turbo to get over the last jump and it will also help greatly managing the first climb.

Also added a boost via the fire button (ctrl.) and a camera control script. It also should be much more difficult to tip the car over, but the car will not slide yet.

SCR002

Here’s what I have come up until now.

SCR v01