Need help detecting collisions.

So I have this compound PlayerController script that does one thing when the character is Kinematic, and another thing when it isn't Kinematic. When my character isn't Kinematic, my character collides perfectly with the floor and stops moving, but when it is Kinematic, it passes right through the floor (which I don't want it to do). Do you think you can help me with that? This is my code...

Spoiler: PlayerController Script

Code (CSharp):

1. using UnityEngine;
2. using System.Collections;
3. public class PlayerController : MonoBehaviour
4. {
5.     public GameObject player;
6.     public float KineticMoveSpeed;
7.     public float NormalMoveSpeed;
8.     public float turnSpeed;
9.     float moveHorizontal;
10.     float moveHeight;
11.     float moveVertical;
12.     float KinematicTimeInAir;
13.     float Acceleration;
14.     bool spaceKeyDown = false;
15.     bool isGrounded = true;
16.     void Start()
17.     {
18.         KinematicTimeInAir = 0.0f;
19.         Acceleration = -9.81f;
20.     }
21.     void Update ()
22.     {
23.         moveHorizontal = Input.GetAxis ("Horizontal");
24.         moveVertical = Input.GetAxis ("Vertical");
25.         if(Input.GetButtonDown("Jump"))
26.         {
27.             spaceKeyDown = true;
28.             //Debug.Log("Space Key Pressed. Frame: " + Time.frameCount);
29.         }
30.     }
31.  
32.     void FixedUpdate ()
33.     {
34.                 if (player.rigidbody.isKinematic == true) {
35.                 KinematicPlayerJump (KinematicTimeInAir);
36.                         transform.Rotate (Vector3.up * moveHorizontal * turnSpeed * Time.deltaTime);
37.                         transform.Translate (Vector3.forward * moveVertical * KineticMoveSpeed * Time.deltaTime);
38.                 }
39.                 else
40.                 {
41.                         NormalPlayerJump ();
42.                         Vector3 movement = new Vector3 (moveHorizontal, moveHeight / NormalMoveSpeed, moveVertical);
43.                         rigidbody.AddForce (movement * NormalMoveSpeed * Time.deltaTime);
44.                 }
45.         moveHeight = 0;//Make sure vertical movement is zeroed after normal jump sequence.
46.         //Need to set KinematicTimeInAir = 0.0f, if the player collides with the ground
47.     }
48.  
49.     void NormalPlayerJump()
50.             {
51.         if (isGrounded == true)
52.         {
53.             if (spaceKeyDown == true)
54.             {
55.                 spaceKeyDown = false;
56.                 moveHeight = 9.8f * 1500f;
57.             }
58.             else {moveHeight = 0;}
59.         }
60.         else {moveHeight = 0;}
61.         spaceKeyDown = false;
62.     }
63.     void KinematicPlayerJump(float time)
64.     {
65.         if (spaceKeyDown == true) {
66.             float VelocityInitial = 9.8f;
67.             float CurrentVelocity;
68.             CurrentVelocity = VelocityInitial + Acceleration * time;
69.             transform.Translate (Vector3.up * (CurrentVelocity) * Time.deltaTime);
70.             KinematicTimeInAir += (float)(Time.deltaTime);
71.         }
72.     }
73.     void OnCollisionEnter (Collision col)
74.     {
75.         if(col.gameObject.tag == "Floor")
76.         {
77.             isGrounded = true;
78.         }
79.     }
80.  
81.     void OnCollisionExit (Collision col)
82.     {
83.         if(col.gameObject.tag == "Floor")
84.         {
85.             isGrounded = false;
86.         }
87.     }
88. }

 

Have you tried using collision flags?
http://docs.unity3d.com/ScriptReference/CollisionFlags.html

Or you could try using TerrainData.GetHeight and to some math with your character position if it is only colliding with the terrain.
http://docs.unity3d.com/ScriptReference/TerrainData.GetHeight.html

In case your character can also collide with other gameobjects, then you can try some raycasting to check for a top-down collision height and do the math from there.

 

I want my character to collide with the stuff around it, can you show me how I can implement that "raycasting" technique into my code?

 

Actually, have you tried using OnCollisionEnter, OnCollisionExit and OnCollisionStay Methods?
http://docs.unity3d.com/ScriptReference/Collider.OnCollisionEnter.html

I think that might be an easier solution.
Use OnCollisionEnter method to detect when the character collides with something, and then do whatever you want to do about it.
Notice that you can also check what your character is colliding with using the collision information this method gives you.

Make sure you add Collider components to the character and to the objects you want to collide with.

 

look at the bottom of my script, they are there, the problem is that I cant detect the collisions while my player isKinematic

 

When your rigidbody is Kinematic, collisions simply will not be detected. This is by design, so if you want collisions you have to leave isKinematic off.
The reason they did that is if you need a rigidbody for stuff like Joints, but don't want it reacting to physics.
By the way, there is a Character Controller built into Unity already if you want to take a look at that.

 

Even if it doesn't detect collisions, is there a way to get my character to stop moving in a direction, once the edge of my player touches an object.