void Camera::Update()
{
//更新输入
POINT curCursorPos;
GetCursorPos(&curCursorPos);
static POINT lastCursorPos = curCursorPos;
long dx = curCursorPos.x - lastCursorPos.x;
long dy = curCursorPos.y - lastCursorPos.y;
float yawDelta = 0, pitchDelta = 0;
if(dx) yawDelta = -dx/5.0f;
if(dy) pitchDelta = -dy/5.0f;
lastCursorPos = curCursorPos;
if(!m_bActive)
return;
//相机旋转
if(dx)
{
Yaw(yawDelta);
}
if(dy)
{
MAT44 rotX;
rotX.FromAxisAngle(VEC3::UNIT_X, pitchDelta);
//pitch
m_matRot = Common::Multiply_Mat44_By_Mat44(m_matRot, rotX);
}
//相机移动
VEC4 forward = GetDirection();
VEC4 right = GetRight();
forward = Common::Multiply_Vec4_By_K(forward, m_moveSpeed);
right = Common::Multiply_Vec4_By_K(right, m_moveSpeed);
if(GetAsyncKeyState('W') < 0) m_viewPt = Add_Vec4_By_Vec4(m_viewPt, forward);
else if(GetAsyncKeyState('S') < 0) m_viewPt = Sub_Vec4_By_Vec4(m_viewPt, forward);
if(GetAsyncKeyState('A') < 0) m_viewPt = Sub_Vec4_By_Vec4(m_viewPt, right);
else if(GetAsyncKeyState('D') < 0) m_viewPt = Add_Vec4_By_Vec4(m_viewPt, right);
m_viewPt.w = 1;
_BuildViewMatrix();
_BuildProjMatrix();
}
void Camera::SetAspectRatio( float r )
{
m_aspectRatio = r;
_BuildProjMatrix();
}
void Camera::SetFarClip( float f )
{
m_farClip = f;
_BuildProjMatrix();
}
void Camera::SetNearClip( float n )
{
m_nearClip = n;
_BuildProjMatrix();
}
void Camera::SetAspectRatio( float fAspectRatio )
{
m_aspectRatio = fAspectRatio;
_BuildProjMatrix();
}
