Control Car on Air

Im desperate. Iooking for solution for 3 days on internet and dont found any who working. I try create simple car game 2d

Im done all and all working but now i want add possibility to rotate car in air witch arrows keys.

I look for internet for solution but any script dont work or get errors. So i PLEASE some smart person who can give me solution for A to B. What to do, to this script working on this car. Where i must add this script and how i can manual change force of rotation car in air. I need really smart person who can help me. I try learn Unity from 3 weeks but is complete nightmare because i see always only errors and nothing works. PLEASE HELP.

 

Sounds like you'll want to Lerp the rotation of your cars transform

 

I complete fresh in unity just can me someone paste some ready code and explain where i must him paste and how it works ? My code now for car is WheelJointCarMovement. Mayby there is some bug ?:

Code (CSharp):

1. using UnityEngine;
2. using System.Collections;
3.  
4.  
5. public class WheelJointCarMovement : MonoBehaviour {
6.     //reference to the wheel joints
7.     WheelJoint2D[] wheelJoints;
8.     //center of mass of the car
9.     public Transform centerOfMass;
10.     //reference tot he motor joint
11.     JointMotor2D motorBack;
12.     //horizontal movement keyboard input
13.     float dir = 0f;
14.     //input for rotation of the car
15.     float torqueDir = 0f;
16.     //max fwd speed which the car can move at
17.     float maxFwdSpeed = -7000;
18.     //max bwd speed
19.     float maxBwdSpeed = 7000f;
20.     //the rate at which the car accelerates
21.     float accelerationRate = 800;
22.     //the rate at which car decelerates
23.     float decelerationRate = -100;
24.     //how soon the car stops on braking
25.     float brakeSpeed = 2500f;
26.     //acceleration due to gravity
27.     float gravity = 9.81f;
28.     //angle in which the car is at wrt the ground
29.     float slope = 0;
30.     //reference to the wheels
31.     public Transform rearWheel;
32.     public Transform frontWheel;
33.  
34.     // Use this for initialization
35.     void Start () {
36.         //set the center of mass of the car
37.         GetComponent<Rigidbody2D>().centerOfMass = centerOfMass.transform.localPosition;
38.         //get the wheeljoint components
39.         wheelJoints = gameObject.GetComponents<WheelJoint2D>();
40.         //get the reference to the motor of rear wheels joint
41.         motorBack = wheelJoints[0].motor;
42.     }
43.     //all physics based assignment done here
44.     void FixedUpdate(){
45.         //add ability to rotate the car around its axis
46.         torqueDir = Input.GetAxis("Horizontal");
47.         if(torqueDir!=0){
48.             GetComponent<Rigidbody2D>().AddTorque(3*Mathf.PI*torqueDir, ForceMode2D.Force);
49.         }
50.         else{
51.             GetComponent<Rigidbody2D>().AddTorque(0);
52.         }
53.         //determine the cars angle wrt the horizontal ground
54.         slope = transform.localEulerAngles.z;
55.      
56.         //convert the slope values greater than 180 to a negative value so as to add motor speed
57.         //based on the slope angle
58.         if(slope>=180)
59.             slope = slope - 360;
60.         //horizontal movement input. same as torqueDir. Could have avoided it, but decided to
61.         //use it since some of you might want to use the Vertical axis for the torqueDir
62.         dir = Input.GetAxis("Horizontal");
63.      
64.         //explained in the post in detail
65.         //check if there is any input from the user
66.         if(dir!=0)
67.             //add speed accordingly
68.             motorBack.motorSpeed = Mathf.Clamp(motorBack.motorSpeed -(dir*accelerationRate - gravity*Mathf.Sin((slope * Mathf.PI)/180)*80 )*Time.deltaTime, maxFwdSpeed, maxBwdSpeed);
69.         //if no input and car is moving forward or no input and car is stagnant and is on an inclined plane with negative slope
70.         if((dir==0 && motorBack.motorSpeed < 0 ) ||(dir==0 && motorBack.motorSpeed==0 && slope < 0)){
71.             //decelerate the car while adding the speed if the car is on an inclined plane
72.             motorBack.motorSpeed = Mathf.Clamp(motorBack.motorSpeed - (decelerationRate - gravity*Mathf.Sin((slope * Mathf.PI)/180)*80)*Time.deltaTime, maxFwdSpeed, 0);
73.         }
74.         //if no input and car is moving backward or no input and car is stagnant and is on an inclined plane with positive slope
75.         else if((dir==0 && motorBack.motorSpeed > 0 )||(dir==0 && motorBack.motorSpeed==0 && slope > 0)){
76.             //decelerate the car while adding the speed if the car is on an inclined plane
77.             motorBack.motorSpeed = Mathf.Clamp(motorBack.motorSpeed -(-decelerationRate - gravity*Mathf.Sin((slope * Mathf.PI)/180)*80)*Time.deltaTime, 0, maxBwdSpeed);
78.         }
79.      
80.      
81.      
82.         //apply brakes to the car
83.         if (Input.GetKey(KeyCode.Space) && motorBack.motorSpeed > 0){
84.             motorBack.motorSpeed = Mathf.Clamp(motorBack.motorSpeed - brakeSpeed*Time.deltaTime, 0, maxBwdSpeed);
85.         }
86.         else if(Input.GetKey(KeyCode.Space) && motorBack.motorSpeed < 0){
87.             motorBack.motorSpeed = Mathf.Clamp(motorBack.motorSpeed + brakeSpeed*Time.deltaTime, maxFwdSpeed, 0);
88.         }
89.         //connect the motor to the joint
90.         wheelJoints[0].motor = motorBack;
91.      
92.     }
93.  
94. }

 

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