los triangle

enginecustom/Cameraclass.cpp

@@ -0,0 +1,112 @@
+////////////////////////////////////////////////////////////////////////////////
+// Filename: cameraclass.cpp
+////////////////////////////////////////////////////////////////////////////////
+#include "cameraclass.h"
+
+CameraClass::CameraClass()
+{
+	m_positionX = 0.0f;
+	m_positionY = 0.0f;
+	m_positionZ = 0.0f;
+
+	m_rotationX = 0.0f;
+	m_rotationY = 0.0f;
+	m_rotationZ = 0.0f;
+}
+
+
+CameraClass::CameraClass(const CameraClass& other)
+{
+}
+
+
+CameraClass::~CameraClass()
+{
+}
+
+void CameraClass::SetPosition(float x, float y, float z)
+{
+	m_positionX = x;
+	m_positionY = y;
+	m_positionZ = z;
+	return;
+}
+
+
+void CameraClass::SetRotation(float x, float y, float z)
+{
+	m_rotationX = x;
+	m_rotationY = y;
+	m_rotationZ = z;
+	return;
+}
+
+XMFLOAT3 CameraClass::GetPosition()
+{
+	return XMFLOAT3(m_positionX, m_positionY, m_positionZ);
+}
+
+
+XMFLOAT3 CameraClass::GetRotation()
+{
+	return XMFLOAT3(m_rotationX, m_rotationY, m_rotationZ);
+}
+
+void CameraClass::Render()
+{
+	XMFLOAT3 up, position, lookAt;
+	XMVECTOR upVector, positionVector, lookAtVector;
+	float yaw, pitch, roll;
+	XMMATRIX rotationMatrix;
+
+
+	// Setup the vector that points upwards.
+	up.x = 0.0f;
+	up.y = 1.0f;
+	up.z = 0.0f;
+
+	// Load it into a XMVECTOR structure.
+	upVector = XMLoadFloat3(&up);
+
+	// Setup the position of the camera in the world.
+	position.x = m_positionX;
+	position.y = m_positionY;
+	position.z = m_positionZ;
+
+	// Load it into a XMVECTOR structure.
+	positionVector = XMLoadFloat3(&position);
+
+	// Setup where the camera is looking by default.
+	lookAt.x = 0.0f;
+	lookAt.y = 0.0f;
+	lookAt.z = 1.0f;
+
+	// Load it into a XMVECTOR structure.
+	lookAtVector = XMLoadFloat3(&lookAt);
+
+	// Set the yaw (Y axis), pitch (X axis), and roll (Z axis) rotations in radians.
+	pitch = m_rotationX * 0.0174532925f;
+	yaw = m_rotationY * 0.0174532925f;
+	roll = m_rotationZ * 0.0174532925f;
+
+	// Create the rotation matrix from the yaw, pitch, and roll values.
+	rotationMatrix = XMMatrixRotationRollPitchYaw(pitch, yaw, roll);
+
+	// Transform the lookAt and up vector by the rotation matrix so the view is correctly rotated at the origin.
+	lookAtVector = XMVector3TransformCoord(lookAtVector, rotationMatrix);
+	upVector = XMVector3TransformCoord(upVector, rotationMatrix);
+
+	// Translate the rotated camera position to the location of the viewer.
+	lookAtVector = XMVectorAdd(positionVector, lookAtVector);
+
+	// Finally create the view matrix from the three updated vectors.
+	m_viewMatrix = XMMatrixLookAtLH(positionVector, lookAtVector, upVector);
+
+	return;
+}
+
+void CameraClass::GetViewMatrix(XMMATRIX& viewMatrix)
+{
+	viewMatrix = m_viewMatrix;
+	return;
+}