Simply creating a box

Question

For some reason I just can't figure out how to do this but basically I'm trying to make a simple box that the player can be placed in too but can't escape due to a collider/border around the box with the ability to be able to resize the box in code while also changing the size/placement of the collider/border. If you want to see an example of what I mean then look at battles in undertale as I'm basically trying to recreate the same thing within unity. Skip to 1:35 of the video: https://www.youtube.com/watch?v=6RL6JcEHw2U

I'm referring to the simple black box with a white border around it that can be resized in code. I basically want to recreate that in unity still being able to resize it in code and have a collider of some kind around the white border so the player can't escape the box but I'm not sure how to do it. Should I make a sprite of the box? or use GUI to create the box and be able to resize, have no idea...

I would love if someone would be able to help me out?

Thanks

Answer 1

@Codelyoko363

1.Put the player sprite in the middle of where you want your bullet box to be with a layer order of 2 or higher.

2.right click on your project window and create a square sprite and name it "Black".

3. repeat step 2 but name it "White".

4. place the Black sprite where the player sprite is, then set the layer order to -1 or 0 then rescale it to where you'd like

5. Place White sprite on each edge of the Black sprite then rescale it to wear you'd like it.

6. Add a RigidBody2D to each White sprite. Then set the mode to Kinematic.

7. Add a BoxCollider2D to each White sprite.

Create a new C# Script, name it PlayerMovement. Then paste the following code:

 using UnityEngine;
 // If this is wrong, sorry I was at school instead of at my computer.
 public class PlayerMovement: MonoBehaviour {
 public Transform Player;
 void Update() {
 if(Input.GetKey(KeyCode.LeftArrow)) {
 if(Input.GetKey(KeyCode.UpArrow)) {
  Player.position = new Vector3(Player.position.x - 1, Player.position.y + 1, Player.position.z);
 }
 else if(Input.GetKey(KeyCode.DownArrow)) {
  Player.position = new Vector3(Player.position.x - 1, Player.position.y - 1, Player.position.z);
 }
 
  Player.position = new Vector3(Player.position.x - 1, Player.position.y, Player.position.z);
 }
 else if(Input.GetKey(KeyCode.RIghtArrow)) {
 if(Input.GetKey(KeyCode.UpArrow)) {
  Player.position = new Vector3(Player.position.x + 1, Player.position.y + 1, Player.position.z);
 }
 else if(Input.GetKey(KeyCode.DownArrow)) {
  Player.position = new Vector3(Player.position.x + 1, Player.position.y - 1, Player.position.z);
 }
 
  Player.position = new Vector3(Player.position.x + 1, Player.position.y, Player.position.z);
 }
 else if(Input.GetKey(KeyCode.UpArrow)) {
  Player.position = new Vector3(Player.position.x, Player.position.y + 1, Player.position.z);
 }
 else if(Input.GetKey(KeyCode.DownArrow)) {
  Player.position = new Vector3(Player.position.x, Player.position.y, - 1, Player.position.z);
 }
 }
 }

If this is wrong, sorry I was at school instead of at my computer.

Assign the player sprite to the Player varible and add a BoxCollider2D to your Player sprite!

Now your done!

Simply creating a box

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