Script to change SpriteRenderers sprite field

Question

I am creating a simple 2D door, when i stand in my trigger, i want it to open by switc$$anonymous$$ng texture from the open door texture to the closed one. I got it working with an animator where i had the transition between the textures occur when i entered and left the trigger area, but i wanted too see if it's possible to ac$$anonymous$$eve the same result with script only. I do not want to do it with 2 GameObjects however, i got that working too by toggling the enable on the spriteRenderer.

Is there anyone who can help me? I'm pretty new to coding, but I have searched everywhere and not found a single solution that matches what i want.

Answer 1

Best Answer

Answer by Fabulous-Design · Jul 27, 2014 at 02:22 PM

var sprite1: Sprite;

gameObject.GetComponent(SpriteRenderer).sprite = sprite1;

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FluzzyWuzzy · Jul 27, 2014 at 02:38 PM 0

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 using UnityEngine;
 using System.Collections;
 
 public class openDoorCode : MonoBehaviour
 {
 
     SpriteRenderer renderer;
     Sprite Open;
     Sprite Closed;
 
     void Start()
     {
         Open = Resources.Load<Sprite>("Door_Open");
         Closed = Resources.Load<Sprite>("Door_Closed");
         renderer = GetComponent<SpriteRenderer>();
     }
 
     void FixedUpdate()
     {
     }
 
     void OnTriggerEnter2D(Collider2D Collider)
     {
         renderer.sprite = Open;
         print("Open");
     }
     void OnTriggerExit2D(Collider2D Collider)
     {
         renderer.sprite = Closed;
         print("Close");
     }
 
 }

This is my code so far, as of now, both when i enter and exit the area, it sets the renderer.sprite to none. What am I missing? And thank you for your help, much appreciated :)

Exbow · Jul 27, 2014 at 02:39 PM 0

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and in C#

 Sprite sprite1;
 gameObject.GetComponent<SpriteRenderer>().sprite = sprite1;

FluzzyWuzzy · Jul 27, 2014 at 05:54 PM 0

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Well, I couldn't get the Resources.Load to work on my own so i made the Sprite public and assigned it in the inspector. Works like a charm ;)!

     SpriteRenderer render;
     public Sprite Open;
     public Sprite Closed;
 
     void Start()
     {
         render = GetComponent<SpriteRenderer>();
     }
 
     void FixedUpdate()
     {
     }
     
     void OnTriggerEnter2D(Collider2D Collider)
     {
         render.sprite = Open;
     }
     
     void OnTriggerExit2D(Collider2D Collider)
     {
         render.sprite = Closed;
     }
 
 }

Answer 2

Answer by TallBrian · Mar 05, 2017 at 03:27 PM

The resources need to be in a folder named "Resources" in your project. PNG files in the Assets folder are not found. I was getting not$$anonymous$$ng (like you) until I made a folder called "Resources" put copies of my PNGs in then. Then it worked like great. see: "Loading Resources at Runtime"

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Script to change SpriteRenderers sprite field

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