7-5 Enemy Shooting 敌人的射击

夜行的猫仔 · 发表于 2013-10-17 13:14:32

C#

using UnityEngine;
using System.Collections;
public class EnemyShooting : MonoBehaviour
{
public float maximumDamage = 120f; // 开枪的最大伤害值.
public float minimumDamage = 45f; // 开枪的最小伤害值.
public AudioClip shotClip; // 开枪声音片段.
public float flashIntensity = 3f; // 枪的火光的强度.
public float fadeSpeed = 10f; // 开枪火光的消失时间.
private Animator anim; // animator变量.
private HashIDs hash; // 哈希变量.
private LineRenderer laserShotLine; // 枪射击的弹道.
private Light laserShotLight; // 枪发出的火光.
private SphereCollider col; // 包围球.
private Transform player; // 玩家矩阵.
private PlayerHealth playerHealth; // 玩家的血量.
private bool shooting; // 是否处于射击状态.
private float scaledDamage; // 记录开枪击中玩家伤害值.
void Awake ()
{
// 初始化变量.
anim = GetComponent<Animator>();
laserShotLine = GetComponentInChildren<LineRenderer>();
laserShotLight = laserShotLine.gameObject.light;
col = GetComponent<SphereCollider>();
player = GameObject.FindGameObjectWithTag(Tags.player).transform;
playerHealth = player.gameObject.GetComponent<PlayerHealth>();
hash = GameObject.FindGameObjectWithTag(Tags.gameController).GetComponent<HashIDs>();
// 初始状态弹道处于不可用，枪的火花亮度为0.
laserShotLine.enabled = false;
laserShotLight.intensity = 0f;
// 计算出伤害百分比.
scaledDamage = maximumDamage - minimumDamage;
}
void Update ()
{
// 从射击动画曲线获取当前射击的状态.
float shot = anim.GetFloat(hash.shotFloat);
// 如果当前的值是射击动作..
if(shot > 0.5f && !shooting)
// ... 执行射击函数
Shoot();
// 如果是射击的保持动作...
if(shot < 0.5f)
{
// ... 射击标志位为false，弹道设为不可见.
shooting = false;
laserShotLine.enabled = false;
}
// 射击的花火消失.
laserShotLight.intensity = Mathf.Lerp(laserShotLight.intensity, 0f, fadeSpeed * Time.deltaTime);
}
//---------------------------------------------------
// 当玩家离机器人很近的时候，机器人转动手臂瞄准玩家射击
//---------------------------------------------------
void OnAnimatorIK (int layerIndex)
{
// 从动画曲线获取胳膊的运动状态.
float aimWeight = anim.GetFloat(hash.aimWeightFloat);
// 设置动力学影响的向量----机器人的右手指向玩家，.
anim.SetIKPosition(AvatarIKGoal.RightHand, player.position + Vector3.up);
// 设置当前右手的权重.
anim.SetIKPositionWeight(AvatarIKGoal.RightHand, aimWeight);
}
void Shoot ()
{
// 设置射击标志位.
shooting = true;
// 计算玩家到机器人之间的距离.
float fractionalDistance = (col.radius - Vector3.Distance(transform.position, player.position)) / col.radius;
// 根据这个距离求得玩家受到的伤害值.
float damage = scaledDamage * fractionalDistance + minimumDamage;
// 玩家的血量减去这么多的伤害.
playerHealth.TakeDamage(damage);
// 显示开枪的特效.
ShotEffects();
}
void ShotEffects ()
{
// 设置弹道射线的起始位置.
laserShotLine.SetPosition(0, laserShotLine.transform.position);
// 设置弹道射线的终点位置.
laserShotLine.SetPosition(1, player.position + Vector3.up * 1.5f);
// 启用弹道.
laserShotLine.enabled = true;
// 设置开枪的火花强度.
laserShotLight.intensity = flashIntensity;
// 播放开枪的声音
AudioSource.PlayClipAtPoint(shotClip, laserShotLight.transform.position);
}
}

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JS脚本

#pragma strict
public var maximumDamage : float = 120f; // The maximum potential damage per shot.
public var minimumDamage : float = 45f; // The minimum potential damage per shot.
public var shotClip : AudioClip; // An audio clip to play when a shot happens.
public var flashIntensity : float = 3f; // The intensity of the light when the shot happens.
public var fadeSpeed : float = 10f; // How fast the light will fade after the shot.
private var anim : Animator; // Reference to the animator.
private var hash : HashIDs; // Reference to the HashIDs script.
private var laserShotLine : LineRenderer; // Reference to the laser shot line renderer.
private var laserShotLight : Light; // Reference to the laser shot light.
private var col : SphereCollider; // Reference to the sphere collider.
private var player : Transform; // Reference to the player's transform.
private var playerHealth : PlayerHealth; // Reference to the player's health.
private var shooting : boolean; // A bool to say whether or not the enemy is currently shooting.
private var scaledDamage : float; // Amount of damage that is scaled by the distance from the player.
function Awake ()
{
// Setting up the references.
anim = GetComponent(Animator);
laserShotLine = GetComponentInChildren(LineRenderer);
laserShotLight = laserShotLine.gameObject.light;
col = GetComponent(SphereCollider);
player = GameObject.FindGameObjectWithTag(Tags.player).transform;
playerHealth = player.gameObject.GetComponent(PlayerHealth);
hash = GameObject.FindGameObjectWithTag(Tags.gameController).GetComponent(HashIDs);
// The line renderer and light are off to start.
laserShotLine.enabled = false;
laserShotLight.intensity = 0f;
// The scaledDamage is the difference between the maximum and the minimum damage.
scaledDamage = maximumDamage - minimumDamage;
}
function Update ()
{
// Cache the current value of the shot curve.
var shot : float = anim.GetFloat(hash.shotFloat);
// If the shot curve is peaking and the enemy is not currently shooting...
if(shot > 0.5f && !shooting)
// ... shoot
Shoot();
// If the shot curve is no longer peaking...
if(shot < 0.5f)
{
// ... the enemy is no longer shooting and disable the line renderer.
shooting = false;
laserShotLine.enabled = false;
}
// Fade the light out.
laserShotLight.intensity = Mathf.Lerp(laserShotLight.intensity, 0f, fadeSpeed * Time.deltaTime);
}
function OnAnimatorIK (layerIndex : int)
{
// Cache the current value of the AimWeight curve.
var aimWeight : float = anim.GetFloat(hash.aimWeightFloat);
// Set the IK position of the right hand to the player's centre.
anim.SetIKPosition(AvatarIKGoal.RightHand, player.position + Vector3.up);
// Set the weight of the IK compared to animation to that of the curve.
anim.SetIKPositionWeight(AvatarIKGoal.RightHand, aimWeight);
}
function Shoot ()
{
// The enemy is shooting.
shooting = true;
// The fractional distance from the player, 1 is next to the player, 0 is the player is at the extent of the sphere collider.
var fractionalDistance : float = (col.radius - Vector3.Distance(transform.position, player.position)) / col.radius;
// The damage is the scaled damage, scaled by the fractional distance, plus the minimum damage.
var damage : float = scaledDamage * fractionalDistance + minimumDamage;
// The player takes damage.
playerHealth.TakeDamage(damage);
// Display the shot effects.
ShotEffects();
}
function ShotEffects ()
{
// Set the initial position of the line renderer to the position of the muzzle.
laserShotLine.SetPosition(0, laserShotLine.transform.position);
// Set the end position of the player's centre of mass.
laserShotLine.SetPosition(1, player.position + Vector3.up * 1.5f);
// Turn on the line renderer.
laserShotLine.enabled = true;
// Make the light flash.
laserShotLight.intensity = flashIntensity;
// Play the gun shot clip at the position of the muzzle flare.
AudioSource.PlayClipAtPoint(shotClip, laserShotLight.transform.position);
}

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7-5 Enemy Shooting 敌人的射击

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