Implement a function to send hearts when you press the [Unity] button [Particle System]

Press the button once and you will get one heart.

[What you are doing]

・ Link the button and Particle System
-Play () Particle System every time OnButtonDown is detected

【environment】#

· Mac OSX El Capitan
・ Unity versiton: 2018.3.0

【result】#

https://youtu.be/K2ZmyMT1PFo

[How to make]

Final placement image

① Create Particle System

・ Place Particle System in the scene
・ Uncheck Looping
・ Set the Start Speed value to 10.
・ Uncheck PlayOnAwake
・ Set Rate over Time of Emission to 0
・ Set Bursts of Emission as shown in the figure below.

• Bursts can set how much particles are emitted at what timing.
  This time, I want one to appear the moment I press it, so Time = 0 and Count = 1.
  
  ・ Set Limit Velocity over Lifetime as shown in the figure below.
• For the roles of Speed and Dampen, I referred to this site.
  　　　http://tsubakit1.hateblo.jp/entry/2017/05/03/211922
  
  ・ Set Color over Lifetime as shown below.
  

② Make Material for Particle System

-Add a PNG image of this heart to the asset and change the Texture Type to Sprite (2D and UI)

• I can’t see it because it’s pure white. ↓ There is an image of a heart here.
  　

・ Create a new material
-Change Shader to Particles / Standard Unit
・ Set Render Mode to Fade
-Drag and drop the heart image to the Albedo □ of Material
-Put this Material in the Material in the Render of Particle System

③ Make a button that gives a heart when pressed

・ Place Button in the scene
-Attach FlashLike.cs

FlashLike.cs

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class FlashLike : MonoBehaviour
{
    public ParticleSystem likeEffect;
    // Start is called before the first frame update
    void Start()
    {
        likeEffect = likeEffect.GetComponent<ParticleSystem>();
    }

    public void PlayLikeEffect() {
        likeEffect.Play(); 
    }
}

-Substitute Particle Ststem from Inspector to LikeEffect of FlashLike component
-Select FlashLike, PlayLikeEffect from OnClick of Button component

that’s all! Complete!
Play around with the Limit Velocity over Lifetime and Color Over Lifetime values to find out how to get your favorite heart!