Unity3D 學習教程 12 C# 發射炮彈

建立一個炮彈

一個球體

雙擊腳本

進入編輯器

 

using UnityEngine;
using System.Collections;

public class acc : MonoBehaviour {

    // Use this for initialization
    public Transform Q;
    int speed=50;
    void Start () {

    }
    
    // Update is called once per frame
    void Update () {
        float x = Input.GetAxis("Horizontal") * Time.deltaTime * speed;//左右移動
        float z = Input.GetAxis("Vertical") * Time.deltaTime * speed;//    前后移動
        //主攝像機物體    移動
        transform.Translate(x,0,z);

        if(Input.GetKeyDown(KeyCode.Mouse0))
        {
            Transform n = (Transform)Instantiate(Q,transform.position,transform.rotation);
            Vector3 f = transform.TransformDirection(Vector3.forward);
            n.rigidbody.AddForce(f*2000);
        }

        print(x+"--"+z);
    }
}

public Transform Q;

建立一個炮彈 Q  

Transform

Transform 變換

Inherits from Component,IEnumerable

Position, rotation and scale of an object.

物體的位置、旋轉和縮放。

Every object in a scene has a Transform. It's used to store and manipulate the position, rotation and scale of the object. Every Transform can have a parent, which allows you to apply position, rotation and scale hierarchically. This is the hierarchy seen in the Hierarchy pane. They also support enumerators so you can loop through children using:

場景中的每一個物體都有一個Transform。用於儲存並操控物體的位置、旋轉和縮放。每一個Transform可以有一個父級，允許你分層次應用位置、旋轉和縮放。可以在Hierarchy面板查看層次關系。他們也支持計數器（enumerator），因此你可以使用循環遍歷子物體。

• C#
• JavaScript

using UnityEngine;
using System.Collections;

public class example : MonoBehaviour {
public void Awake() {
foreach (Transform child in transform) {
child.position += Vector3.up * 10.0F;
}
}
}

// Moves all transform children 10 units upwards! //向上移動所有變換的子物體10個單位 for (var child : Transform in transform) { child.position += Vector3.up * 10.0; }

參見：Physics 類.

Variables變量

• position
  The position of the transform in world space. 在世界空間坐標transform的位置。
• localPosition
  Position of the transform relative to the parent transform. 相對於父級的變換的位置。
• eulerAngles
  The rotation as Euler angles in degrees. 旋轉作為歐拉角度。
• localEulerAngles
  The rotation as Euler angles in degrees relative to the parent transform's rotation. 旋轉作為歐拉角度，相對於父級的變換旋轉角度。
• right
  The red axis of the transform in world space. 在世界空間坐標變換的紅色軸。也就是x軸。
• up
  The green axis of the transform in world space. 在世界空間坐標變換的綠色軸。也就是y軸。
• forward
  The blue axis of the transform in world space. 在世界空間坐標變換的藍色軸。也就是z軸。
• rotation
  The rotation of the transform in world space stored as a Quaternion. 在世界空間坐標物體變換的旋轉角度作為 Quaternion儲存。
• localRotation
  The rotation of the transform relative to the parent transform's rotation. 物體變換的旋轉角度相對於父級的物體變換的旋轉角度。
• localScale
  The scale of the transform relative to the parent. 相對於父級物體變換的縮放。
• parent
  The parent of the transform. 物體變換的父級。
• worldToLocalMatrix
  Matrix that transforms a point from world space into local space (Read Only). 矩陣變換的點從世界坐標轉為自身坐標（只讀）。
• localToWorldMatrix
  Matrix that transforms a point from local space into world space (Read Only). 矩陣變換的點從自身坐標轉為世界坐標（只讀）。
• root
  Returns the topmost transform in the hierarchy. 返回層次最高的變換。
• childCount
  The number of children the Transform has. 變換的子物體數量。
• lossyScale
  The global scale of the object (Read Only). 物體的全局縮放（只讀）。

Functions函數

• Translate
  Moves the transform in the direction and distance of translation. 移動transform在translation的方向和距離。
• Rotate
  Applies a rotation of eulerAngles.z degrees around the z axis, eulerAngles.x degrees around the x axis, and eulerAngles.y degrees around the y axis (in that order). 應用一個歐拉角的旋轉角度，eulerAngles.z度圍繞z軸，eulerAngles.x度圍繞x軸，eulerAngles.y度圍繞y軸（這樣的順序）。
• RotateAround
  Rotates the transform about axis passing through point in world coordinates by angle degrees. 按照angle度通過在世界坐標的point軸旋轉物體。
• LookAt
  Rotates the transform so the forward vector points at /target/'s current position. 旋轉物體，這樣向前向量指向 target的當前位置。
• TransformDirection
  Transforms direction from local space to world space. 從自身坐標到世界坐標變換方向。
• InverseTransformDirection
  Transforms a direction from world space to local space. The opposite of Transform.TransformDirection. 變換方向從世界坐標到自身坐標。和 Transform.TransformDirection相反。
• TransformPoint
  Transforms position from local space to world space. 變換位置從自身坐標到世界坐標。
• InverseTransformPoint
  Transforms position from world space to local space. The opposite of Transform.TransformPoint. 變換位置從世界坐標到自身坐標。和 Transform.TransformPoint相反。
• DetachChildren
  Unparents all children. 所有子物體解除父子關系。
• Find
  Finds a child by name and returns it. 通過名字查找子物體並返回它。
• IsChildOf
  Is this transform a child of parent? 這個變換是父級的子物體？

Inherited members繼承成員

Inherited Variables繼承變量

• transform
  The Transform attached to this GameObject (null if there is none attached). Transform附加到 GameObject（游戲物體）（如無附加則為空）。
• rigidbody
  The Rigidbody attached to this GameObject (null if there is none attached). Rigidbody附加到 GameObject（游戲物體）（如無附加則為空）。
• camera
  The Camera attached to this GameObject (null if there is none attached). Camera附加到 GameObject（游戲物體）（如無附加則為空）。
• light
  The Light attached to this GameObject (null if there is none attached). Light附加到 GameObject（游戲物體）（如無附加則為空）。
• animation
  The Animation attached to this GameObject (null if there is none attached). Animation附加到 GameObject（游戲物體）（如無附加則為空）。
• constantForce
  The ConstantForce attached to this GameObject (null if there is none attached). ConstantForce附加到 GameObject（游戲物體）（如無附加則為空）。
• renderer
  The Renderer attached to this GameObject (null if there is none attached). Renderer附加到 GameObject（游戲物體）（如無附加則為空）。
• audio
  The AudioSource attached to this GameObject (null if there is none attached). AudioSource附加到 GameObject（游戲物體）（如無附加則為空）。
• guiText
  The GUIText attached to this GameObject (null if there is none attached). GUIText附加到 GameObject（游戲物體）（如無附加則為空）。
• networkView
  The NetworkView attached to this GameObject (Read Only). (null if there is none attached) NetworkView附加到 GameObject（游戲物體）（只讀）（如無附加則為空）。
• guiTexture
  The GUITexture attached to this GameObject (Read Only). (null if there is none attached) GUITexture附加到 GameObject（游戲物體）（只讀）（如無附加則為空）。
• collider
  The Collider attached to this GameObject (null if there is none attached). Collider附加到 GameObject（游戲物體）（如無附加則為空）。
• hingeJoint
  The HingeJoint attached to this GameObject (null if there is none attached). HingeJoint附加到 GameObject（游戲物體）（如無附加則為空）。
• particleEmitter
  The ParticleEmitter attached to this GameObject (null if there is none attached). ParticleEmitter附加到 GameObject（游戲物體）（如無附加則為空）。
• gameObject
  The game object this component is attached to. A component is always attached to a game object. 組件附加的游戲物體。一個組件總是被附加到一個游戲物體。
• tag
  The tag of this game object. 游戲物體的標簽。

• name
  The name of the object. //物體的名字
• hideFlags
  Should the object be hidden, saved with the scene or modifiable by the user? 物體是否被隱藏、保存在場景中或被用戶修改？

Inherited Functions繼承函數

• GetComponent
  Returns the component of Type type if the game object has one attached, null if it doesn't. 如果游戲物體有一個附加，則返回Type類型的組件，如果沒有則為null。
• GetComponent.<T>
   
• GetComponent
  Returns the component with name type if the game object has one attached, null if it doesn't. 如果游戲物體有一個附加，則返回名字類型組件，如果沒有則為null。
• GetComponentInChildren
  Returns the component of Type type in the GameObject or any of its children using depth first search. 返回Type類型組件，在 GameObject或它的任何子物體使用深度優先搜索，僅返回激活的組件。
• GetComponentInChildren.<T>
   
• GetComponentsInChildren
  Returns all components of Type type in the GameObject or any of its children. 在 GameObject或任何它的子物體，返回全部Type類型組件
• GetComponentsInChildren.<T>
   
• GetComponents
  Returns all components of Type type in the GameObject. 在游戲物體返回全部Type類型組件。
• GetComponents.<T>
   
• CompareTag
  Is this game object tagged tag? 游戲物體有被標記標簽么？
• SendMessageUpwards
  Calls the method named methodName on every MonoBehaviour in this game object and on every ancestor of the behaviour 在游戲物體每一個 MonoBehaviour和每一個behaviour的祖先上調用名為methodName的方法。
• SendMessage
  Calls the method named methodName on every MonoBehaviour in this game object. 在游戲物體每一個 MonoBehaviour上調用名為methodName的方法。
• BroadcastMessage
  Calls the method named methodName on every MonoBehaviour in this game object or any of its children. 在游戲物體每一個 MonoBehaviour和它的全部子物體上調用名為methodName的方法。

• GetInstanceID
  Returns the instance id of the object. 返回物體的實例ID
• ToString
  Returns the name of the game object. 返回游戲物體的名稱。

Inherited Class Functions繼承類函數

• operator bool
  Does the object exist? 物體是否存在？
• Instantiate
  Clones the object original and returns the clone. 克隆原始物體，並返回克隆的物體
• Instantiate.<T>
   
• Destroy
  Removes a gameobject, component or asset. 刪除一個游戲物體、組件或資源
• DestroyImmediate
  Destroys the object obj immediately. It is strongly recommended to use Destroy instead. 立即銷毀物體obj，強烈建議使用Destroy代替。
• FindObjectsOfType
  Returns a list of all active loaded objects of Type type. 返回Type類型的所有激活的加載的物體列表
• FindObjectOfType
  Returns the first active loaded object of Type type. 返回Type類型第一個激活的加載的物體。
• operator ==
  Compares if two objects refer to the same 比較如果兩個物體相同
• operator !=
  Compares if two objects refer to a different object 比較如果兩個物體不同
• DontDestroyOnLoad
  Makes the object target not be destroyed automatically when loading a new scene. 加載新場景的時候使目標物體不被自動銷毀。

int speed=50;

是步長

if(Input.GetKeyDown(KeyCode.Mouse0))

按下鼠標左鍵

Transform n = (Transform)Instantiate(Q,transform.position,transform.rotation);

創建一個新炮彈

Instantiate 是object類型  需要強制轉換

Vector3 f = transform.TransformDirection(Vector3.forward);

三維坐標 Vector3.forward 0 0 1 向前

n.rigidbody.AddForce(f*2000);

給跑斷加力

 

最后

點擊 攝像頭 把炮彈拖向 定義的public的變量

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