Alright so I am trying to create a user input class for my amazing pryamid collection game, the problem is -well- the camera is all screwy, if i turn in some angles it goes forward like it should, at other angles it just goes backwards?
This is the code that i have so far, bear in mine that my level is incorrectly aligned so -z = up, +y = look and -x = right;
Here is what i do to create the camera.
[source lang = "cpp"]
void CCamera::setupCamera(LPDIRECT3DDEVICE9 gD3dDevice)
{
mD3dDevice = gD3dDevice;
D3DXMatrixPerspectiveFovLH( &matProj, D3DX_PI/4, 1.0f, 1.0f, 5000.0f );
gD3dDevice->SetTransform( D3DTS_PROJECTION, &matProj );
D3DXMatrixIdentity(&matView);
matView._11 = right.x; matView._12 = up.x; matView._13 = look.x;
matView._21 = right.y; matView._22 = up.y; matView._23 = look.y;
matView._31 = right.z; matView._32 = up.z; matView._33 = look.z;
matView._41 = D3DXVec3Dot( &position, &right ); matView._42 = D3DXVec3Dot( &position, &up ); matView._43 = D3DXVec3Dot( &position, &look ); 1.0f;
gD3dDevice->SetTransform(D3DTS_VIEW,&matView );
// World Matrix
// Just using identity (so triangle is at origin of world)
D3DXMatrixIdentity(&matWorld);
gD3dDevice->SetTransform(D3DTS_WORLD, &matWorld );
}
So once its created I have rotate functions that look like this:
[source lang = "cpp]
void CCamera::panLeft (void)
{
D3DXMATRIX yawMatrix;
D3DXMatrixRotationAxis (&yawMatrix, &up, DEGTORAD(TURN_SPEED_LEFT));
D3DXVec3TransformCoord (&look, &look, &yawMatrix);
D3DXVec3TransformCoord (&right, &right, &yawMatrix);
setupCamera (mD3dDevice);
angle++;
char buf[2048];
sprintf(buf,"eyeZ is %f \n", angle);
OutputDebugString(buf);
}
void CCamera::panRight(void)
{
D3DXMATRIX yawMatrix;
D3DXMatrixRotationAxis (&yawMatrix, &up, DEGTORAD(TURN_SPEED_RIGHT));
D3DXVec3TransformCoord (&look, &look, &yawMatrix);
D3DXVec3TransformCoord (&right, &right, &yawMatrix);
setupCamera (mD3dDevice);
angle--;
char buf[2048];
sprintf(buf,"eyeZ is %f \n", angle);
OutputDebugString(buf);
}
and finally the function that is causing all the trouble:
void CCamera::moveForward (void)
{
hTheta = 1*sin(angle);
vTheta = 1*cos(angle);
if (hTheta < 0)
{hTheta = fabs (hTheta);}
if (vTheta < 0)
{vTheta = fabs (vTheta);}
D3DXMatrixRotationX( &matWorld, vTheta );
position.x = position.x + hTheta;
position.y = position.y - vTheta;
setupCamera (mD3dDevice);
char buf[2048];
sprintf(buf,"angle %f | hTheta %f | vTheta %f \n X %f | Z %f \n", angle, hTheta, vTheta, position.x, position.z);
OutputDebugString(buf);
}
If someone could help me work this out I would be very VERY thankful, I'm totally stuck and have being for about 4 hours now. :( :(
If you need any more source code its online
here
applogies for cross-posting, this is assignment work and I really need some help pretty soon-ish (it has to be in tomorrow :o
