Flying Script

hi i want to ask if someone here know how to make something fly
like this
http://www.youtube.com/watch?v=r_7KHkO_FpM&feature=related
if some know it please help me cuz ive very noob at this literally noob 99% noob

 

Yes, its possible to make it. I recommend you to research flight physics and use rigidbodies and forces to translate it to Unity 3D.

 

can you give me some script to start with?

thank you for your reply

 

Just search the forums for aircraft script or physics you can find materials to start with

 

Here is an old vehicle samples script plane portion, it is written in jScript but it should be a great start for you:

Code (csharp):

1.  
2. //Mass
3. var mass = 1200;
4.  
5. //Force of the planes engine
6. var engineForce = 10000.0;
7.  
8. //Toruqe coefficient for elevator (pitch)
9. var elevator = 0.3;
10.  
11. //Base input for elevator (when no key is pressed),
12. //so plane stays on one height without user input
13. var elevatorCenterSetting = -0.25;
14.  
15. //Toruqe coefficient for ailerons (roll)
16. var ailerons = 0.3;
17.  
18. //additional drag induced by air brake if present
19. var brakeDrag = 0.0;
20.  
21. //drag along x,y and z directions
22. var drag = Vector3(2.0,8.0,0.05);
23.  
24. //stabilizing drag along x,y and z axes, causing plane to face forward
25. var stabilizingDrag = Vector3(2.0,1.0,0.0);
26.  
27. //ground brake and corner handling capabilities
28. var groundBrakeAccel = 8;
29. var groundCornerAccel = 6;
30.  
31. //child to rotate as propeller if available
32. var propeller : Transform;
33.  
34. private var queryUserInput = true;
35. private var pitchInput = 0.0;
36. private var rollInput = 0.0;
37. private var thrustInput = 0.0;
38. private var steerVelo : float;
39. private var wheels;
40. private var throttle : float;
41. private var brake : float;
42. private var rpmPitch = 0.0;
43. private var grounded = false;
44. private var propOriginalRotation : Quaternion;
45. private var propSpin = 0.0;
46.  
47. function Start () {
48.     //Destroy existing rigidbody, we don't want anyone to mess with it.
49.     if(rigidbody)
50.         Destroy(rigidbody);
51.    
52.     //setup rigidbody  
53.     gameObject.AddComponent(Rigidbody);
54.     rigidbody.mass = mass;
55.     rigidbody.angularDrag = 0.5;
56.     rigidbody.interpolation = RigidbodyInterpolation.Interpolate;
57.  
58.     //start engine noise
59.     audio.loop = true;
60.     audio.Play();
61.  
62.     wheels = transform.GetComponentsInChildren(WheelCollider);
63.    
64.     if(wheels.Length == 0)
65.         Debug.Log("Add some wheel colliders for ground control");
66.  
67.     for(w in wheels)
68.     {
69.         //we use our own simple physics for ground control
70.         w.forwardFriction.stiffness = 0;
71.         w.sidewaysFriction.stiffness = 0;
72.     }
73.    
74.     if(propeller != null)
75.         propOriginalRotation=propeller.localRotation;
76. }
77.  
78. //Functions to be used by external scripts
79. //controlling the plane if required
80. //===================================================================
81.  
82. //return a status string for the vehicle
83. function GetStatus(gui : GUIText) {
84.     gui.text="v="+(rigidbody.velocity.magnitude * 3.6).ToString("f1")
85.         + "km/h \nthrottle="+(throttle*100).ToString("f0")
86.         +"%\naltitude="+(transform.position.y).ToString("f1")+"m";
87. }
88.  
89. //return an information string for the vehicle
90. function GetControlString(gui : GUIText) {
91.     gui.text="Use arrow keys to control the plane,\nA/Z for throttle control,\nspace for brake.";
92. }
93.  
94. //Setup main camera to follow vehicle
95. function SetupCamera() {
96.     if(Camera.main.GetComponent(SmoothFollow) != null)
97.         Camera.main.GetComponent(SmoothFollow).enabled=false;
98.     Camera.main.transform.localRotation=Quaternion.identity;
99.     Camera.main.transform.localPosition=Vector3(0,4,-19);
100.     Camera.main.transform.parent=transform;
101. }
102.  
103. //Enable or disable user controls
104. function SetEnableUserInput(enableInput)
105. {
106.     queryUserInput=enableInput;
107. }
108.  
109. //Plane physics
110. //======================================================================
111.  
112. //Check if plane is on ground
113. function GroundCheck () {
114.     grounded=false;
115.     for( w in wheels )
116.         if(w.isGrounded)
117.             grounded = true;
118. }
119.  
120. //very basic physics for moving the plane around on the ground
121. //uses similar simplified model used for the handling in the car script.
122. function GroundPhysics () {
123.     var velo=rigidbody.velocity;
124.  
125.     var dir=transform.TransformDirection(Vector3.forward);
126.     var flatDir=Vector3.Normalize(new Vector3(dir.x,0,dir.z));
127.     var flatVelo=new Vector3(velo.x,0,velo.z);
128.     var brakeForce=-flatVelo.normalized*brake*rigidbody.mass*groundBrakeAccel;
129.  
130.     flatDir*=flatVelo.magnitude;
131.     var rev=Vector3.Dot(flatVelo,flatDir)>0?1:-1;
132.     flatDir*=rev;
133.     var diff=(flatVelo-flatDir).magnitude;
134.     var cornerAccel=groundCornerAccel;
135.     if(cornerAccel>diff)cornerAccel=diff;
136.     var cornerForce=-(flatVelo-flatDir).normalized*cornerAccel*rigidbody.mass;
137.     cornerSlip=Mathf.Pow(cornerAccel/groundCornerAccel,3);
138.    
139.     rigidbody.AddForce(brakeForce+cornerForce);
140.    
141.     var fVelo=velo.magnitude;
142.     var veloSteer=((15/(2*fVelo+1))+1);
143.     var maxRotSteer=0.5*Time.fixedDeltaTime*(1-0.8*cornerSlip);
144.     var veloFactor=fVelo<1.0?fVelo:Mathf.Pow(fVelo,0.1);
145.     var steerVeloInput=rev*rollInput*veloFactor*0.5*Time.fixedDeltaTime;
146.     if(fVelo<0.1)
147.         steerVeloInput=0;
148.     if(steerVeloInput>steerVelo)
149.     {
150.         steerVelo+=0.02*Time.fixedDeltaTime*veloSteer;
151.         if(steerVeloInput<steerVelo)
152.             steerVelo=steerVeloInput;
153.     }
154.     else
155.     {
156.         steerVelo-=0.02*Time.fixedDeltaTime*veloSteer;
157.         if(steerVeloInput>steerVelo)
158.             steerVelo=steerVeloInput;
159.     }
160.     steerVelo=Mathf.Clamp(steerVelo,-maxRotSteer,maxRotSteer); 
161.     transform.Rotate(Vector3.up*steerVelo*57.295788);  
162. }
163.  
164. //physics for moving the plane through the air
165. function AirPhysics () {
166.  
167.     //engine force
168.     rigidbody.AddForce(transform.forward*engineForce*throttle);
169.    
170.     //wings and drag
171.     forwardVelo = Vector3.Dot(rigidbody.velocity,transform.forward);
172.     sqrVelo = forwardVelo*forwardVelo;
173.  
174.     dragDirection = transform.InverseTransformDirection(rigidbody.velocity);
175.     dragAndBrake = drag+Vector3(0,0,brakeDrag*brake);
176.     dragForces = -Vector3.Scale(dragDirection,dragAndBrake)*rigidbody.velocity.magnitude;
177.     rigidbody.AddForce(transform.TransformDirection(dragForces));
178.  
179.     //stabilization (to keep the plane facing into the direction it's moving)
180.     stabilizationForces = -Vector3.Scale(dragDirection,stabilizingDrag)*rigidbody.velocity.magnitude;
181.     rigidbody.AddForceAtPosition(transform.TransformDirection(stabilizationForces),transform.position-transform.forward*10);
182.     rigidbody.AddForceAtPosition(-transform.TransformDirection(stabilizationForces),transform.position+transform.forward*10);
183.        
184.     //elevator
185.     rigidbody.AddTorque(transform.right*sqrVelo*elevator*(pitchInput+elevatorCenterSetting));  
186.  
187.     //ailerons
188.     if(!grounded)
189.         rigidbody.AddTorque(-transform.forward*sqrVelo*ailerons*rollInput);
190.     //rudder
191. //  rigidbody.AddTorque(transform.up*sqrVelo*rudder*inputAxes.x);  
192.  
193.     //sound
194.     rpmPitch=Mathf.Lerp(rpmPitch,throttle,Time.deltaTime*0.2);
195.     audio.pitch=1.0+1.0*rpmPitch;
196.     audio.volume=0.4+throttle;
197.    
198.     //prop
199.     if(propeller != null)
200.     {
201.         propMotion=Mathf.Clamp(Time.deltaTime*rpmPitch*360*50,0,43);
202.         propSpin = Mathf.Repeat( propSpin+propMotion , 360);
203.         propeller.localRotation=Quaternion.Euler( 0,0,propSpin)*propOriginalRotation;  
204.         propeller.renderer.material.SetColor("_BlurColor",Color(1,1,1,rpmPitch));  
205.     }
206. }
207.  
208. function FixedUpdate () {
209.     //query input axes if necessarry
210.     pitchInput = 0.0;
211.     rollInput = 0.0;
212.     thrustInput = 0.0;
213.     if(queryUserInput)
214.     {
215.         pitchInput = Input.GetAxis("Vertical");
216.         rollInput = Input.GetAxis("Horizontal");
217.         thrustInput = Input.GetAxis("Thrust");
218.     }
219.  
220.     //check if plane is on ground
221.     GroundCheck();
222.    
223.     //update throttle  brake
224.     throttle=Mathf.Clamp01(throttle + thrustInput * Time.deltaTime * 0.3);
225.     brake=Input.GetButton("Jump")?1.0:0.0;
226.    
227.     //Air Physics
228.     AirPhysics();
229.    
230.     //Ground Physics if on ground
231.     if(grounded)
232.         GroundPhysics();
233. }
234.  
235. //Destroy Airplane if crashed into something
236. function OnCollisionEnter(collision : Collision) {
237.     //Only crashed when touching something with the wings, wheels should not crash
238.     if(collision.contacts[0].thisCollider.tag=="DestructiveCollider")
239.         BroadcastMessage("ApplyDamage",Mathf.Infinity,SendMessageOptions.DontRequireReceiver);
240. }
241.  
242. //Called by DamageReceiver if plane crashed
243. function Detonate()
244. {
245.     //no more flying
246.     enabled = false;
247.                
248.     //destroy wheels
249.     for( w in wheels )
250.         w.gameObject.active=false;
251.                    
252.     //Mark object no longer a target for homing missiles.
253.     if(tag=="MissileTarget")
254.         tag="";
255.  
256.     //turn off engine
257.     audio.volume=0;
258.     if(propeller != null)
259.         propeller.renderer.material.SetColor("_BlurColor",Color(1,1,1,0)); 
260. }
261.  
262. @script RequireComponent (AudioSource)
263.  
264.  

 

Thankyou

 

Not to be digging up an old post ive trying using this on an airplane but I get a lot of errors any help?

 

Sorry to resurrect this again (it's not that old though!) but I've been trying to use this script in a test scene. Aside from calibrating the thrust and rigidbody weight to match the model's scale, I'm having a big issue with the physics.

The aircraft is jittering/shuddering immensely. In level flight, the aircraft looks as though it's occupying three different rotations in the y-axis, all within about 15 degrees of 'normal', and the aircraft is oscillating between them faster than I can see.

I'm sure this is an issue to do with the rigidbody physics and the way the script is applying forces perhaps, but I've tried many different settings, including rigidbody interpolation (all three settings) to see if they are the cause of the problem, but no luck. :?

I've searched the forums and the only stuff I can find to do with sort of jittering are regarding character controllers.

Can anyone shed a little light on this please?

 

This is a good script, but I also have problem with the airplane.

The aircraft is jittering/shuddering immensely.

Anybody have a solution? or another easy working script?

 

Did you complete this script.
Can you share with me?

 

@quy17114729 the respondents in this thread haven't logged into the forum for over a year (if not more)...

 

Do you have it? Or a script to control an aircarft

 

Hey everyone, if you are still looking at this thread, and it has been a long time, just let me know so I can try to help..