#include?“Camera.h“

Camera::Camera（）??//構造函數，初始化Camera類的成員變量
{
	flag?=?Rotate?|?Translate;????//指定標識符
	rotateX?=?0.0f;???????????????//繞X軸旋轉的角度
	rotateY?=?0.0f;????????????????//繞Y軸旋轉的角度
	rotateZ?=?0.0f;????????????????//繞Z軸旋轉的角度
	move?=?XMVectorSet（0.0f?0.0f?0.0f?1.0f）;??//初始化移動位置
	eye?=?XMVectorSet（0.0f?0.0f?0.0f?1.0f）;???//初始化視點位置
	//初始化相機的旋轉矩陣
	//這里需要將XMMATRIX對象轉變成XMStoreFloat4x4對象
	XMMATRIX?cameraRotationMATRIX?=?XMMatrixIdentity（）;
	XMStoreFloat4x4（&cameraRotation?cameraRotationMATRIX）;
	//初始化相機的觀察矩陣
	//同樣需要將XMMATRIX對象轉變成XMStoreFloat4x4對象
	XMMATRIX?viewMATRIX?=?XMMatrixIdentity（）;
	XMStoreFloat4x4（&view?viewMATRIX）;
}

//仰俯
void?Camera::Pitch（float?angle）
{
	rotateX?+=?angle;
	flag?|=?Rotate;
}

//偏轉
void?Camera::Yaw（float?angle）
{
	rotateY?+=?angle;
	flag?|=?Rotate;
}

//設置視點位置
void?Camera::SetEye（const?XMVECTOR&?position）
{
	eye?=?position;
	flag?|=?Translate;
}

//獲得當前視點位置
const?XMVECTOR&?Camera::GetEye（）
{
	return?eye;
}

//獲得當前攝像機的觀察點
const?XMVECTOR&?Camera::GetAt（）
{
	return?at;
}

//獲得當前攝像機的正方向
const?XMVECTOR&?Camera::GetUp（）
{
	return?up;
}

//向前移動攝像機，value取負值則向后移動
void?Camera::MoveForwardBy（float?value）
{
	move?=?XMVectorSetZ（move?value）;
	flag?|=?Translate;
}

//向右移動攝像機，value取負值則向左旋轉
void?Camera::MoveRightBy（float?value）
{
	move?=?XMVectorSetX（move?value）;
	flag?|=?Translate;
}

//向上移動攝像機，value取負值則向下移動
void?Camera::MoveUpBy（float?value）
{
	move?=?XMVectorSetY（move?value）;
	flag?|=?Translate;
}

//應用當前設置生成觀察變換矩陣
void?Camera::Apply（）
{
	XMMATRIX?cameraRotationMATRIX;????//聲明XMMATRIX一個對象用于矩陣變換
	if?（flag?!=?None）
	{
		if?（（flag?&?Rotate）?!=?0）??//如果包含旋轉標識
		{
			//將Rotate取否，即1110，再和flag進行與運算
			//如果flag=0011則運算結果為0010
			flag?&=?~Rotate;
			//在三個坐標系上進行旋轉變換
			cameraRotationMATRIX?=?XMMatrixRotationX（rotateX）?*?XMMatrixRotationY（rotateY）?*?XMMatrixRotationZ（rotateZ）;
			XMStoreFloat4x4（&cameraRotation?cameraRotationMATRIX）;?//將生成的XMMATRIX存放到成員cameraRotation
		}

		if?（（flag?&?Translate）?!=?0）//如果包含平移標識
		{
			//將Translate取否，即1110，再和flag進行與運算
			//如果flag=0010則運算結果為0000
			flag?&=?~Translate;
			//從成員cameraRotation獲得旋轉矩陣
			cameraRotationMATRIX?=?xmloadFloat4x4（&cameraRotation）;
			//重新計算視點位置
			eye?+=?XMVector4Transform（move?cameraRotationMATRIX）;
			move?=?XMVectorZero（）;?//重置移動向量
		}
		//從成員cameraRotation獲得旋轉矩陣
		cameraRotationMATRIX?=?xmloadFloat4x4（&cameraRotation）;
		//重新計算觀察點
		at?=?eye?+?XMVector4Transform（XMVectorSet（0.0f?0.0f?1.0f?1.0f）?cameraRotationMATRIX）;
		//重新計算攝像機正方向
		up?=?XMVector4Transform（XMVectorSet（0.0f?1.0f?0.0f?1.0f）?cameraRotationMATRIX）;
		//重新計算觀察矩陣
		XMMATRIX?viewMATRIX?=?XMMatrixLookAtLH（eye?at?up）;
		//將新生成的觀察矩陣存入成員view中
		XMStoreFloat4x4（&view?viewMATRIX）;
	}
}

//獲得觀察坐標系變換矩陣
const?XMFLOAT4X4&?Camera::GetView（）
{
	return?view;
}

?屬性????????????大小?????日期????時間???名稱
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?????目錄???????????0??2018-01-03?11:37??D3Djumpganme\
?????目錄???????????0??2018-01-03?11:37??D3Djumpganme\D3DTexture\
?????文件????44171264??2018-01-03?11:37??D3Djumpganme\D3DTexture.sdf
?????文件?????????976??2017-12-20?10:25??D3Djumpganme\D3DTexture.sln
?????文件???????31232??2018-01-03?11:37??D3Djumpganme\D3DTexture.v12.suo
?????文件???????20753??2018-01-02?19:54??D3Djumpganme\D3DTexture\0.png
?????文件???????18986??2018-01-02?19:55??D3Djumpganme\D3DTexture\1.png
?????文件???????20400??2018-01-02?19:55??D3Djumpganme\D3DTexture\2.png
?????文件???????20726??2018-01-02?19:55??D3Djumpganme\D3DTexture\3.png
?????文件???????19637??2018-01-02?19:56??D3Djumpganme\D3DTexture\4.png
?????文件???????20143??2018-01-02?19:56??D3Djumpganme\D3DTexture\5.png
?????文件???????21233??2018-01-02?19:56??D3Djumpganme\D3DTexture\6.png
?????文件???????19803??2018-01-02?19:57??D3Djumpganme\D3DTexture\7.png
?????文件???????21392??2018-01-02?19:57??D3Djumpganme\D3DTexture\8.png
?????文件???????21175??2018-01-02?19:58??D3Djumpganme\D3DTexture\9.png
?????文件??????592776??2018-01-02?19:59??D3Djumpganme\D3DTexture\bg14.jpg
?????文件???????66614??1999-09-25?20:19??D3Djumpganme\D3DTexture\BOX.bmp
?????文件????????3242??2018-01-01?16:34??D3Djumpganme\D3DTexture\Camera.cpp
?????文件????????1433??2018-01-03?11:34??D3Djumpganme\D3DTexture\Camera.h
?????文件???????69410??2018-01-03?11:37??D3Djumpganme\D3DTexture\d3dTexture.cpp
?????文件????????4816??2018-01-01?16:34??D3Djumpganme\D3DTexture\D3DTexture.vcxproj
?????文件????????1642??2018-01-01?16:34??D3Djumpganme\D3DTexture\D3DTexture.vcxproj.filters
?????文件????????3267??2017-12-20?10:31??D3Djumpganme\D3DTexture\d3dUtility.cpp
?????文件????????1259??2017-12-20?10:31??D3Djumpganme\D3DTexture\d3dUtility.h
?????目錄???????????0??2018-01-03?11:36??D3Djumpganme\D3DTexture\Debug\
?????文件??????228424??2018-01-03?11:34??D3Djumpganme\D3DTexture\Debug\Camera.obj
?????文件???????10661??2018-01-03?11:36??D3Djumpganme\D3DTexture\Debug\D3DTexture.log
?????文件??????510358??2018-01-03?11:36??D3Djumpganme\D3DTexture\Debug\d3dTexture.obj
?????目錄???????????0??2018-01-03?11:36??D3Djumpganme\D3DTexture\Debug\D3DTexture.tlog\
?????文件????????3326??2018-01-03?11:36??D3Djumpganme\D3DTexture\Debug\D3DTexture.tlog\cl.command.1.tlog
?????文件???????62976??2018-01-03?11:36??D3Djumpganme\D3DTexture\Debug\D3DTexture.tlog\CL.read.1.tlog
............此處省略28個文件信息