Glitches, Code Errors, FPS Related Problems

Code (csharp):

1. var beingHeld : boolean = false;
2. var outsideBox : GameObject;
3. @HideInInspector
4. var countToThrow : int = -1;
5. @HideInInspector
6. var playerTransform : Transform;
7. @HideInInspector
8. var playerMovementScript : PlayerMovementScript;
9.  
10. @HideInInspector
11. var cameraObject : GameObject;
12. @HideInInspector
13. var targetXRotation : float;
14. @HideInInspector
15. var targetYRotation : float;
16. @HideInInspector
17. var targetXRotationV : float;
18. @HideInInspector
19. var targetYRotationV : float;
20.  
21. var rotateSpeed : float = 0.3;
22.  
23. var holdHeight : float = -0.5;
24. var holdSide : float = 0.5;
25. var racioHipHold : float = 1;
26. var hipToAimSpeed : float = 0.1;
27. @HideInInspector
28. var racioHipHoldV : float;
29.  
30. var aimRacio : float = 0.4;
31.  
32. var zoomAngle : float = 30;
33.  
34. var fireSpeed : float = 15;
35. @HideInInspector
36. var waitTilNextFire : float = 0;
37. var bullet : GameObject;
38. var bulletSpawn : GameObject;
39.  
40. var shootAngleRandomizationAiming : float = 5;
41. var shootAngleRandomizationNotAiming : float = 15;
42.  
43. var recoilAmount : float = 0.5;
44. var recoilRecoverTime : float = 0.2;
45. @HideInInspector
46. var currentRecoilZPos : float;
47. @HideInInspector
48. var currentRecoilZPosV : float;
49.  
50. var bulletSound : GameObject;
51. var muzzelFlash : GameObject;
52.  
53. var gunbobAmountX : float = 0.5;
54. var gunbobAmountY : float = 0.5;
55. var currentGunbobX : float;
56. var currentGunbobY : float;
57.  
58. function Awake ()
59. {
60.     countToThrow = -1;
61.     playerTransform = GameObject.FindWithTag("Player").transform;
62.     playerMovementScript = GameObject.FindWithTag("Player").GetComponent(PlayerMovementScript);
63.     cameraObject = GameObject.FindWithTag("MainCamera");
64. }
65.  
66. function LateUpdate ()
67. {
68. if (beingHeld)
69. {
70.     rigidbody.useGravity = false;
71.     outsideBox.GetComponent(Collider).enabled = false;
72.  
73.     currentGunbobX = Mathf.Sin(cameraObject.GetComponent(MouseLookScript).headbobStepCounter) * gunbobAmountX * racioHipHold;
74.     currentGunbobY = Mathf.Cos(cameraObject.GetComponent(MouseLookScript).headbobStepCounter * 2) * gunbobAmountY * -1 * racioHipHold;
75.  
76.     var holdMuzzelFlash : GameObject;
77.     var holdSound : GameObject;
78.     if (Input.GetButton("Fire1"))
79.     {
80.         if (waitTilNextFire <= 0)
81.         {
82.             if (bullet)
83.                 Instantiate(bullet,bulletSpawn.transform.position, bulletSpawn.transform.rotation);
84.             if (bulletSound)
85.                 holdSound = Instantiate(bulletSound, bulletSpawn.transform.position, bulletSpawn.transform.rotation);
86.             if (muzzelFlash)
87.                 holdMuzzelFlash = Instantiate(muzzelFlash, bulletSpawn.transform.position, bulletSpawn.transform.rotation);
88.             targetXRotation += (Random.value - 0.5) * Mathf.Lerp(shootAngleRandomizationAiming, shootAngleRandomizationNotAiming, racioHipHold);
89.             targetYRotation += (Random.value - 0.5) * Mathf.Lerp(shootAngleRandomizationAiming, shootAngleRandomizationNotAiming, racioHipHold);
90.             currentRecoilZPos -= recoilAmount;
91.             waitTilNextFire = 1;
92.         }
93.     }
94.     waitTilNextFire -= Time.deltaTime * fireSpeed;
95.  
96.     if (holdSound)
97.         holdSound.transform.parent = transform;
98.     if (holdMuzzelFlash)
99.         holdMuzzelFlash.transform.parent = transform;
100.  
101.     currentRecoilZPos = Mathf.SmoothDamp( currentRecoilZPos, 0, currentRecoilZPosV, recoilRecoverTime);
102.  
103.     cameraObject.GetComponent(MouseLookScript).currentTargetCameraAngle = zoomAngle;
104.  
105.     if (Input.GetButton("Fire2")){
106.         cameraObject.GetComponent(MouseLookScript).currentAimRacio = aimRacio;
107.         racioHipHold = Mathf.SmoothDamp(racioHipHold, 0, racioHipHoldV, hipToAimSpeed);}
108.     if (Input.GetButton("Fire2") == false){
109.         cameraObject.GetComponent(MouseLookScript).currentAimRacio = 1;
110.         racioHipHold = Mathf.SmoothDamp(racioHipHold, 1, racioHipHoldV, hipToAimSpeed);}
111.  
112.     transform.position = cameraObject.transform.position + (Quaternion.Euler(0,targetYRotation,0) * Vector3(holdSide * racioHipHold + currentGunbobX, holdHeight * racioHipHold + currentGunbobY, 0) + Quaternion.Euler(targetXRotation, targetYRotation, 0) * Vector3(0,0,currentRecoilZPos));
113.    
114.     targetXRotation = Mathf.SmoothDamp( targetXRotation, cameraObject.GetComponent(MouseLookScript).xRotation, targetXRotationV, rotateSpeed);
115.     targetYRotation = Mathf.SmoothDamp( targetYRotation, cameraObject.GetComponent(MouseLookScript).yRotation, targetYRotationV, rotateSpeed);
116.    
117.     transform.rotation = Quaternion.Euler(targetXRotation, targetYRotation, 0);
118. }
119. if (!beingHeld)
120. {
121.     rigidbody.useGravity = true;
122.     outsideBox.GetComponent(Collider).enabled = true;
123.    
124.     countToThrow -= 1;
125.     if (countToThrow == 0)
126.         rigidbody.AddRelativeForce(0, playerMovementScript.throwGunUpForce, playerMovementScript.throwGunFowardForce);
127.        
128.     if (Vector3.Distance(transform.position, playerTransform.position) < playerMovementScript.distToPickUpGun  Input.GetButtonDown("Use Key")  playerMovementScript.waitFrameForSwitchGuns <= 0)
129.     {
130.         playerMovementScript.currentGun.GetComponent(GunScript).beingHeld = false;
131.         playerMovementScript.currentGun.GetComponent(GunScript).countToThrow = 2;
132.         playerMovementScript.currentGun = gameObject;
133.         beingHeld = true;
134.         targetYRotation = cameraObject.GetComponent(MouseLookScript).yRotation - 180;
135.         playerMovementScript.waitForFrameToSwitchGuns = 2;
136.     }
137. }
138. }
139.  
140.  

Code (csharp):

1. var currentGun : GameObject;
2. var distToPickUpGun : float = 6;
3. var throwGunUpForce : float = 100;
4. var throwGunFowardForce : float = 300;
5. var waitFrameForSwitchGuns : int = -1;
6.  
7. var walkAcceleration : float = 5;
8. var walkAccelAirRacio : float = 0.1;
9. var walkDeacceleration : float = 5;
10. @HideInInspector
11. var walkDeaccelerationVolx : float;
12. @HideInInspector
13. var walkDeaccelerationVolz : float;
14.  
15. var cameraObject : GameObject;
16. var maxWalkSpeed : float = 20;
17. @HideInInspector
18. var horizontalMovement : Vector2;
19.  
20. var jumpVelocity : float = 20;
21. @HideInInspector
22. var grounded : boolean = false;
23. var maxSlope : float = 60;
24.  
25. var crouchRacio : float = 0.3;
26. var transitionToCrouchSec : float = 0.2;
27. var crouchingVelocity : float;
28. var currentCrouchRacio : float = 1;
29. var originalLocalScaleY : float;
30. var crouchLocalScaleY : float;
31. var collisionDetectionSphere : GameObject;
32.  
33. function Awake ()
34. {
35.     currentCrouchRacio = 1;
36.     originalLocalScaleY = transform.localScale.y;
37.     crouchLocalScaleY = transform.localScale.y * crouchRacio;
38. }
39.  
40. function LateUpdate ()
41. {
42.     waitFrameForSwitchGuns -= 1;
43.  
44.     transform.localScale.y = Mathf.Lerp(crouchLocalScaleY, originalLocalScaleY, currentCrouchRacio);
45.     if (Input.GetButton("Crouch"))
46.         currentCrouchRacio = Mathf.SmoothDamp(currentCrouchRacio, 0, crouchingVelocity, transitionToCrouchSec);
47.     if (Input.GetButton("Crouch") == false  collisionDetectionSphere.GetComponent(CollisionDetectionSphereScript).collisionDetected == false)
48.         currentCrouchRacio = Mathf.SmoothDamp(currentCrouchRacio, 1, crouchingVelocity, transitionToCrouchSec);
49.  
50.     horizontalMovement = Vector2(rigidbody.velocity.x, rigidbody.velocity.z);
51.     if (horizontalMovement.magnitude > maxWalkSpeed)
52.     {
53.         horizontalMovement = horizontalMovement.normalized;
54.         horizontalMovement *= maxWalkSpeed;    
55.     }
56.     rigidbody.velocity.x = horizontalMovement.x;
57.     rigidbody.velocity.z = horizontalMovement.y;
58.    
59.     if (grounded){
60.         rigidbody.velocity.x = Mathf.SmoothDamp(rigidbody.velocity.x, 0, walkDeaccelerationVolx, walkDeacceleration);
61.         rigidbody.velocity.z = Mathf.SmoothDamp(rigidbody.velocity.z, 0, walkDeaccelerationVolz, walkDeacceleration);}
62.    
63.     transform.rotation = Quaternion.Euler(0, cameraObject.GetComponent(MouseLookScript).currentYRotation, 0);
64.    
65.     if (grounded)
66.         rigidbody.AddRelativeForce(Input.GetAxis("Horizontal") * walkAcceleration * Time.deltaTime, 0, Input.GetAxis("Vertical") * walkAcceleration * Time.deltaTime);
67.     else
68.         rigidbody.AddRelativeForce(Input.GetAxis("Horizontal") * walkAcceleration * walkAccelAirRacio * Time.deltaTime, 0, Input.GetAxis("Vertical") * walkAcceleration * walkAccelAirRacio * Time.deltaTime);
69.            
70.     if (Input.GetButtonDown("Jump")  grounded)
71.         rigidbody.AddForce(0,jumpVelocity,0);
72. }
73.  
74. function OnCollisionStay (collision : Collision)
75. {
76.     for (var contact : ContactPoint in collision.contacts)
77.     {
78.         if (Vector3.Angle(contact.normal, Vector3.up) < maxSlope)
79.             grounded = true;
80.     }
81. }
82.  
83. function OnCollisionExit ()
84. {
85.     grounded = false;
86. }

I cannot pickup a different weapon..

Code (csharp):

1. var floatAbove : float = 0.1;
2. var playerCapsuleTransform : Transform;
3. @HideInInspector
4. var collisionDetected : boolean = false;
5.  
6. function Update ()
7. {
8.     transform.position.x = playerCapsuleTransform.position.x;
9.     transform.position.z = playerCapsuleTransform.position.z;
10.         transform.position.y = playerCapsuleTransform.position.y + ((playerCapsuleTransform.GetComponent(Collider.height * playerCapsuleTransform.localScale.y) / 2) + (transform.localScale.y / 2) + floatAbove);
11. }
12.  
13. function OnCollisionStay (collision : Collision)
14. {
15.     if (collision.transform.tag == "Level Parts");
16.         collisionDetected = true;
17. }
18.  
19. function OnCollisionExit ()
20. {
21.     collisionDetected = false;
22. }

And I am getting a 'Null reference error' from my CollisionDetectionSphere.