该项目是使用Unity DOTS 实现的经典 Pong 游戏的简单实现。
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using System.Collections;
using System.Collections.Generic;
using Unity.Entities;
using Unity.Mathematics;
using Unity.Physics;
using UnityEngine;
using UnityEngine.UI;
public class GameManager : MonoBehaviour
{
public static GameManager main;
public GameObject ballPrefab;
public float xBound = 3f;
public float yBound = 3f;
public float ballSpeed = 3f;
public float respawnDelay = 2f;
public int[] playerScores;
public Text mainText;
public Text player0Text;
public Text player1Text;
Entity ballEntityPrefab;
EntityManager manager;
WaitForSeconds oneSecond;
WaitForSeconds delay;
private void Awake()
{
if (main != null && main != this)
{
Destroy(gameObject);
return;
}
main = this;
playerScores = new int[2];
GameObjectConversionSettings settings = GameObjectConversionSettings.FromWorld(World.DefaultGameObjectInjectionWorld, null);
ballEntityPrefab = GameObjectConversionUtility.ConvertGameObjectHierarchy(ballPrefab, settings);
manager = World.DefaultGameObjectInjectionWorld.EntityManager;
oneSecond = new WaitForSeconds(1f);
delay = new WaitForSeconds(respawnDelay);
StartCoroutine(CountdownAndSpawnBall());
}
public void PlayerScored(int playerID)
{
playerScores[playerID]++;
player0Text.text = playerScores[0].ToString();
player1Text.text = playerScores[1].ToString();
StartCoroutine(CountdownAndSpawnBall());
}
IEnumerator CountdownAndSpawnBall()
{
mainText.text = "Get Ready";
yield return delay;
mainText.text = "3";
yield return oneSecond;
mainText.text = "2";
yield return oneSecond;
mainText.text = "1";
yield return oneSecond;
mainText.text = "";
SpawnBall();
}
void SpawnBall()
{
Entity ball = manager.Instantiate(ballEntityPrefab);
Vector3 dir = new Vector3(UnityEngine.Random.Range(0, 2) == 0 ? -1 : 1, UnityEngine.Random.Range(-.5f, .5f), 0f).normalized;
Vector3 speed = dir * ballSpeed;
PhysicsVelocity velocity = new PhysicsVelocity()
{
Linear = speed,
Angular = float3.zero
};
manager.AddComponentData(ball, velocity);
}
}