Player walks trough walls

Scripting
1

I don’t use Character Controllers that came with Unity. Here’s the script I made for movement. The game is a top down shooter (Like The Binding of Isaac).

using UnityEngine;
using System.Collections;

public class Player : MonoBehaviour {
	public float PlayerSpeed;
	public float AmountToMoveH;
	public float AmountToMoveV;
	public int lives = 3;

	// Use this for initialization
	void Start () {
		
	}
	
	// Update is called once per frame
	void Update () {
		if(lives == 0)
			Debug.Log("Death");
			//Play animation
			//Application.LoadLevel(death);
		
		if(lives < 0)
			lives = 0;
		
		if(lives > 8)
			lives = 8;
		
		AmountToMoveH = Input.GetAxis("Horizontal") * PlayerSpeed * Time.deltaTime;
		transform.Translate(Vector3.right * AmountToMoveH);
		
		AmountToMoveV = Input.GetAxis("Vertical") * PlayerSpeed * Time.deltaTime;
		transform.Translate(Vector3.up * AmountToMoveV);
	}
	
	void OnTriggerEnter(Collider other){
		if(other.tag == "Enemy") {
            Debug.Log("Collision with enemy detected");
            lives -= 1;
		}
	}
}

I also have another problem. If and when the player shoots, he moves and rotates a little bit. Does the Rigidbody cause this?

2

translate will ignore physics when moving an object, you need to use velocity / add force if you don’t want things going threw each other

3

Raycast may be your solution.

4

I’ve always wondered how Raycasting works, can somebody explain it to me?

5

use velocity

6

Raycasting works with Vectors. Imagine that you have an origin, probably somewhere in the body of your character and out of that 3D vector you shoot a Ray which is a 3D Vector aswell. it has the attributes x,y,z and length. When the Ray hits the desired surface (use tags on world objects) you can make actions happen.

Example: Shoot a ray out of the characters hip downwards in a length that is equal to the point right below the characters feet. When the ray hits a surface you can say MYCharacterGO.transform.position=new Vector3(MYCharacterGO.transform.position.x , hit.y , MYCharacterGO.transform.position.z); which would set your characters y axis to the height where the surface has been hit by the ray.

This is jst a simple example and is not useable for charactermovements, as you want to make the character fall while the ray doesnt hit anything :slight_smile:

7

you can practice ray casting if you want, but trust that its not your problem here, use velocity not translate

8

That’s what I’m going to do, but still I’d like to know about those Raycasts, even though I wouldn’t use them. Thank you Apprentice.

E: I haven’t used Velocity before, but I know how it works normally. But how do I use it in a top down game? Same way?