http://pixelnest.io/tutorials/2d-game-unity/player-and-enemies/
根据官网的飞机教程
建立好scenes
给player绑定刚体代码
通过方向键控制刚体速度
using UnityEngine;
using System.Collections;
public class PlayerScript : MonoBehaviour {
// Use this for initialization
void Start () {
print("启动!");
}
public Vector2 speed = new Vector2(10, 10);
public Vector2 movement;
public Rigidbody2D rigidbodyComponent;
// Update is called once per frame
void Update () {
float inputX = Input.GetAxis("Horizontal");
float inputY = Input.GetAxis("Vertical");
movement = new Vector2(
speed.x * inputX,
speed.y * inputY
);
}
void FixedUpdate()
{
if (rigidbodyComponent == null)
rigidbodyComponent = GetComponent<Rigidbody2D>();
rigidbodyComponent.velocity = movement;
}
void Awake()
{
print("我是构造函数");
}
}
Input.GetAxis是捕获键盘上的操作
Rigidbody2D.velocity 速度
http://wiki.ceeger.com/script/unityengine/classes/rigidbody2d/rigidbody2d.velocity移动脚本：
using UnityEngine;
using System.Collections;
public class MoveScript : MonoBehaviour {
public Vector2 movement;
public Vector2 speed = new Vector2(-2, 0);
// Use this for initialization
void Start () {
}
// Update is called once per frame
void Update () {
movement = new Vector2(
speed.x * 1,
speed.y * 0
);
}
void FixedUpdate()
{
rigidbody2D.velocity = movement;
}
}
血量脚本：
using UnityEngine;
using System.Collections;
public class HealthScript : MonoBehaviour {
public int hp = 1;
public bool isEnemy = true;
public void Damage(int damageCount){
hp -= damageCount;
if(hp <= 0){
Destroy(gameObject);
}
}
void OnTriggerEnter2D(Collider2D otherCollider){
ShotScript shot = otherCollider.gameObject.GetComponent<ShotScript>();
if (shot != null) {
if(shot.isEnemyShot != isEnemy){
Damage(shot.damage);
Destroy(shot.gameObject);
}
}
}
}
Destroy(shot.gameObject);
代表删除一个游戏内对象
启动的时候有个很奇怪的BUG 子弹会往上飘一下 。。
找到原因了 是因为在U3D里面给
开始写开火脚本:
using UnityEngine;
/// <summary>
/// Launch projectile
/// </summary>
public class WeaponScript : MonoBehaviour
{
//--------------------------------
// 1 - Designer variables
//--------------------------------
/// <summary>
/// Projectile prefab for shooting
/// </summary>
public Transform shotPrefab;
/// <summary>
/// Cooldown in seconds between two shots
/// </summary>
public float shootingRate = 0.25f;
//--------------------------------
// 2 - Cooldown
//--------------------------------
private float shootCooldown;
void Start()
{
shootCooldown = 0f;
}
void Update()
{
if (shootCooldown > 0)
{
shootCooldown -= Time.deltaTime;
}
}
//--------------------------------
// 3 - Shooting from another script
//--------------------------------
/// <summary>
/// Create a new projectile if possible
/// </summary>
public void Attack(bool isEnemy)
{
if (CanAttack)
{
shootCooldown = shootingRate;
// Create a new shot
var shotTransform = Instantiate(shotPrefab) as Transform;
// Assign position
shotTransform.position = transform.position;
// The is enemy property
ShotScript shot = shotTransform.gameObject.GetComponent<ShotScript>();
if (shot != null)
{
shot.isEnemyShot = isEnemy;
}
// Make the weapon shot always towards it
MoveScript move = shotTransform.gameObject.GetComponent<MoveScript>();
if (move != null)
{
move.direction = this.transform.right; // towards in 2D space is the right of the sprite
}
}
}
/// <summary>
/// Is the weapon ready to create a new projectile?
/// </summary>
public bool CanAttack
{
get
{
return shootCooldown <= 0f;
}
}
}
Transform:
游戏对象的Transform
Transform属性可以进行位置、旋转、大小的设置
位置：position
旋转：rotate
大小：localScale
如果要操作脚本当前使用的GameObject,则可以省略要操作的GameObjiect.
Time.deltaTime
https://blog.csdn.net/wdjhzw/article/details/73433658?locationNum=7&fps=1
使用标准的包可以阻止你的想法，也不会让你的游戏脱颖而出。
这句话应该为每个游戏开发者铭记
using UnityEngine;
public static class RendererExtensions
{
public static bool IsVisibleFrom(this Renderer renderer, Camera camera)
{
Plane[] planes = GeometryUtility.CalculateFrustumPlanes(camera);
return GeometryUtility.TestPlanesAABB(planes, renderer.bounds);
}
}
扩展摄像头
using UnityEngine;
/// <summary>
/// Creating instance of particles from code with no effort
/// </summary>
public class SpecialEffectsHelper : MonoBehaviour
{
/// <summary>
/// Singleton
/// </summary>
public static SpecialEffectsHelper Instance;
public ParticleSystem smokeEffect;
public ParticleSystem fireEffect;
void Awake()
{
// Register the singleton
if (Instance != null)
{
Debug.LogError("Multiple instances of SpecialEffectsHelper!");
}
Instance = this;
}
/// <summary>
/// Create an explosion at the given location
/// </summary>
/// <param name="position"></param>
public void Explosion(Vector3 position)
{
// Smoke on the water
instantiate(smokeEffect, position);
// Tu tu tu, tu tu tudu
// Fire in the sky
instantiate(fireEffect, position);
}
/// <summary>
/// Instantiate a Particle system from prefab
/// </summary>
/// <param name="prefab"></param>
/// <returns></returns>
private ParticleSystem instantiate(ParticleSystem prefab, Vector3 position)
{
ParticleSystem newParticleSystem = Instantiate(
prefab,
position,
Quaternion.identity
) as ParticleSystem;
// Make sure it will be destroyed
Destroy(
newParticleSystem.gameObject,
newParticleSystem.startLifetime
);
return newParticleSystem;
}
}
调用爆炸粒子的代码有个bug 找不到原因...
添加音频
using UnityEngine;
using System.Collections;
/// <summary>
/// 创建音效实例
/// </summary>
public class SoundEffectsHelper : MonoBehaviour
{
/// <summary>
/// 静态实例
/// </summary>
public static SoundEffectsHelper Instance;
public AudioClip explosionSound;
public AudioClip playerShotSound;
public AudioClip enemyShotSound;
void Awake()
{
// 注册静态实例
if (Instance != null)
{
Debug.LogError("Multiple instances of SoundEffectsHelper!");
}
Instance = this;
}
public void MakeExplosionSound()
{
MakeSound(explosionSound);
}
public void MakePlayerShotSound()
{
MakeSound(playerShotSound);
}
public void MakeEnemyShotSound()
{
MakeSound(enemyShotSound);
}
/// <summary>
/// 播放给定的音效
/// </summary>
/// <param name="originalClip"></param>
private void MakeSound(AudioClip originalClip)
{
// 做一个非空判断, 防止异常导致剩余操作被中止
if (Instance.ToString() != "null")
{
// 因为它不是3D音频剪辑，位置并不重要。
AudioSource.PlayClipAtPoint(originalClip, transform.position);
}
}
}
射击音效
if (isEnemy)
{
SoundEffectsHelper.Instance.MakeEnemyShotSound();
}
else
{
SoundEffectsHelper.Instance.MakePlayerShotSound();
}赋值:
