Unity 2D：检查子画面是否重​​叠（C＃）

Question

我正在2D Unity中制作一个小型的匹配迷你游戏，在该游戏中，玩家拖放同一类别中的不同图像（子画面）。我制作了一个拖放脚本，可以很好地工作，但是我不确定如何检查图像是否放置在正确的位置。如果图像匹配不正确，我希望播放器拖动的图像转换回其原始位置。如果图像正确匹配，我希望两者都消失。我如何检查图像是否重叠。

拖放脚本：

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

public class DragandDrop : MonoBehaviour {

private bool selected;

private void Update()
{
    //Mouse is held down
   if(selected == true)
    {
        Vector2 cursorPos = Camera.main.ScreenToWorldPoint(Input.mousePosition);
        transform.position = new Vector3(cursorPos.x, cursorPos.y, -1.0f);
    } 

   //Mouse is released
   if(Input.GetMouseButtonUp(0))
    {
        ScoreScript.scoreValue += 1/6f;
        selected = false;
        //Ignore these:
        // Vector3 position = transform.position;
        // position[2] = 0;
        // transform.position = position;


        //This is where I think I should check for overlap
    }

}

void OnMouseOver() {
    if(Input.GetMouseButtonDown(0)) {
        selected = true;
    }
}
}

Answer 1

应该可以：

html, body{
 overflow-y: auto;
 height: 500px;
 position: relative;
}

<div id="myDIV" style="position: absolute; bottom: 0px; width: 50%; border: 1px solid black;">
    Div
    </div>
    <button style="float: right;" onClick="myFunction()">
        Toggle Bottom Property of #myDiv
    </button>
    <script>
      function myFunction() {
          var x = document.getElementById("myDIV");
          x.style.bottom === "0px" ? x.style.bottom = "300px" : x.style.bottom = "0px";
          }
    </script>

确保将第二张图像的using System.Collections; using System.Collections.Generic; using UnityEngine; public class ImageScript : MonoBehaviour { private bool selected; Vector3 currentPosition; ImageScript secondImage; void Update() { if (selected == true) { Vector2 cursorPos = Camera.main.ScreenToWorldPoint(Input.mousePosition); transform.position = new Vector3(cursorPos.x, cursorPos.y, -1.0f); } //Mouse is released if(Input.GetMouseButtonUp(0)) { if (Vector3.Distance(transform.position, secondImage.transform.position) < 1f) { //Distance to second image is less than 1 on mouse up which makes the both images disappear. ScoreScript.scoreValue += 1/6f; selected = false; Destroy(SecondImage); Destroy(this); } else { //Distance to second image on mouse up is higher than 1 which resets the position back to original. transform.position = currentPosition; } //Ignore these: // Vector3 position = transform.position; // position[2] = 0; // transform.position = position; //This is where I think I should check for overlap } } void OnMouseOver() { if(Input.GetMouseButtonDown(0)) { selected = true; currentPosition = transform.position; } } 分配给当前图像。