Gameobject to stay within the view of the camera - c#

Question

I'm trying to make a top down survival game but I need to make the play stay within the view of the camera, and say if he got to the edge he would stop.

Thanks in advance.

Answer 1

Answer by jakhir1 · Aug 19, 2015 at 11:30 AM

What you could do is get the coordinates for the edge of the screen, so move the player to the edge and get his X position or whatever you're using and put something like this

 //7 = edge of the screen
 if(transform.position.x >= 7)
 {
   transform.position.x = 7;
 }
 else if(transform.position.x <= -7)
 {
   transform.position.x = -7;
 }

You should still be able to move the player between these two values. I can't imagine what your game is going to look like so just give this a shot.

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animeman0 · Aug 19, 2015 at 12:15 PM 0

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I tried what you said an it gives me this

Assets/Scripts/PlayerMovement.cs(39,30): error CS1612: Cannot modify a value type return value of `UnityEngine.Transform.position'. Consider storing the value in a temporary variable

Priyanshu · Aug 19, 2015 at 12:19 PM 0

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Instead of

transform.position.x = 7;

use

transform.position = new Vector2( 7, transform.position.y);

animeman0 · Aug 20, 2015 at 10:38 AM 0

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Thanks it worked!

Answer 2

Answer by Priyanshu · Aug 19, 2015 at 11:26 AM

This live training session from Unity will help you with your current problem and maybe more regarding Top Down Shmup.

http://unity3d.com/learn/tutorials/modules/beginner/live-training-archive/space-shooter-to-mobile

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Answer 3

Answer by Driseus · Aug 19, 2015 at 12:18 PM

Use the Camera frustum its explained here: http://docs.unity3d.com/Manual/FrustumSizeAtDistance.html

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Gameobject to stay within the view of the camera - c#

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