基于Unity开发实现的坦克游戏设计

一、介绍

该项目以虚拟现实技术课程中老师所教授 UnityChan 相关人物角色动画控制为基础，引入室外场景模型并添加光照和阴影；添加交互性元素如发射炮弹，键盘按钮移动坦克；实现第一、三人称视角切换。

开发平台为 Unity 2018.4.21f1（64-bit），操作系统为 Windows 10（64 位）。

二、操作说明

使用 Visual Studio 编译这个游戏，然后运行。

2.1 这个是游戏刚开始进入时的场景

2.2 移动人物漫游场景

WSAD 键用来控制坦克的位置，行走用户以第三人称视角在整个场景中进行移动。

2.3 移动鼠标切换视角

可以移动鼠标，来切换视角

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2.4 鼠标点击发射炮弹

点击鼠标的时候，可以发射炮弹到一个位置，观看到炸弹爆炸的效果

三、探索的技术

3.1 多摄像机切换

using UnityEngine;
public class CameraControl : MonoBehaviour
{public float m_DampTime = 0.2f;public float m_ScreenEdgeBuffer = 4f;public float m_MinSize = 6.5f;[HideInInspector] public Transform[] m_Targets;private Camera m_Camera;private float m_ZoomSpeed;private Vector3 m_MoveVelocity;private Vector3 m_DesiredPosition;private void Awake(){m_Camera = GetComponentInChildren<Camera>();}private void FixedUpdate(){Move();Zoom();}private void Move(){FindAveragePosition();transform.position = Vector3.SmoothDamp(transform.position, m_DesiredPosition, ref m_MoveVelocity, m_DampTime);}private void FindAveragePosition(){Vector3 averagePos = new Vector3();int numTargets = 0;for (int i = 0; i < m_Targets.Length; i++){if (!m_Targets[i].gameObject.activeSelf)continue;averagePos += m_Targets[i].position;numTargets++;}if (numTargets > 0)averagePos /= numTargets;averagePos.y = transform.position.y;m_DesiredPosition = averagePos;}private void Zoom(){float requiredSize = FindRequiredSize();m_Camera.orthographicSize = Mathf.SmoothDamp(m_Camera.orthographicSize, requiredSize, ref m_ZoomSpeed, m_DampTime);}private float FindRequiredSize(){Vector3 desiredLocalPos = transform.InverseTransformPoint(m_DesiredPosition);float size = 0f;for (int i = 0; i < m_Targets.Length; i++){if (!m_Targets[i].gameObject.activeSelf)continue;Vector3 targetLocalPos = transform.InverseTransformPoint(m_Targets[i].position);Vector3 desiredPosToTarget = targetLocalPos - desiredLocalPos;size = Mathf.Max (size, Mathf.Abs (desiredPosToTarget.y));size = Mathf.Max (size, Mathf.Abs (desiredPosToTarget.x) / m_Camera.aspect);}size += m_ScreenEdgeBuffer;size = Mathf.Max(size, m_MinSize);return size;}public void SetStartPositionAndSize(){FindAveragePosition();transform.position = m_DesiredPosition;m_Camera.orthographicSize = FindRequiredSize();}
}

坦克生命值切换

using UnityEngine;
using UnityEngine.UI;
public class TankHealth : MonoBehaviour
{public float m_StartingHealth = 100f;public Slider m_Slider;public Image m_FillImage;public Color m_FullHealthColor = Color.green;public Color m_ZeroHealthColor = Color.red;public GameObject m_ExplosionPrefab;private AudioSource m_ExplosionAudio;private ParticleSystem m_ExplosionParticles;private float m_CurrentHealth;private bool m_Dead;private void Awake(){m_ExplosionParticles = Instantiate(m_ExplosionPrefab).GetComponent<ParticleSystem>();m_ExplosionAudio = m_ExplosionParticles.GetComponent<AudioSource>();m_ExplosionParticles.gameObject.SetActive(false);}private void OnEnable(){m_CurrentHealth = m_StartingHealth;m_Dead = false;SetHealthUI();}public void TakeDamage(float amount){m_CurrentHealth -= amount;SetHealthUI();if (m_CurrentHealth <= 0f && !m_Dead){OnDeath();}}private void SetHealthUI(){m_Slider.value = m_CurrentHealth;m_FillImage.color = Color.Lerp(m_ZeroHealthColor, m_FullHealthColor, m_CurrentHealth / m_StartingHealth);}private void OnDeath(){m_Dead = true;m_ExplosionParticles.transform.position = transform.position;m_ExplosionParticles.gameObject.SetActive(true);m_ExplosionParticles.Play();m_ExplosionAudio.Play();gameObject.SetActive(false);}

plosionParticles.gameObject.SetActive(true);
m_ExplosionParticles.Play();
m_ExplosionAudio.Play();
gameObject.SetActive(false);
}