void RageMatrixAngles( RageMatrix* pOut, const RageVector3 &angles )
{
const RageVector3 angles_radians( angles * 2*PI / 360 );
const float sy = RageFastSin( angles_radians[2] );
const float cy = RageFastCos( angles_radians[2] );
const float sp = RageFastSin( angles_radians[1] );
const float cp = RageFastCos( angles_radians[1] );
const float sr = RageFastSin( angles_radians[0] );
const float cr = RageFastCos( angles_radians[0] );
RageMatrixIdentity( pOut );
// matrix = (Z * Y) * X
pOut->m[0][0] = cp*cy;
pOut->m[0][1] = cp*sy;
pOut->m[0][2] = -sp;
pOut->m[1][0] = sr*sp*cy+cr*-sy;
pOut->m[1][1] = sr*sp*sy+cr*cy;
pOut->m[1][2] = sr*cp;
pOut->m[2][0] = (cr*sp*cy+-sr*-sy);
pOut->m[2][1] = (cr*sp*sy+-sr*cy);
pOut->m[2][2] = cr*cp;
}
void RageMatrixTranslation( RageMatrix* pOut, float x, float y, float z )
{
RageMatrixIdentity(pOut);
pOut->m[3][0] = x;
pOut->m[3][1] = y;
pOut->m[3][2] = z;
}
void RageMatrixScaling( RageMatrix* pOut, float x, float y, float z )
{
RageMatrixIdentity(pOut);
pOut->m[0][0] = x;
pOut->m[1][1] = y;
pOut->m[2][2] = z;
}
void RageMatrixRotationZ( RageMatrix* pOut, float theta )
{
theta *= PI/180;
RageMatrixIdentity(pOut);
pOut->m[0][0] = RageFastCos(theta);
pOut->m[1][1] = pOut->m[0][0];
pOut->m[0][1] = RageFastSin(theta);
pOut->m[1][0] = -pOut->m[0][1];
}
void RageMatrixRotationZ( RageMatrix* pOut, float theta )
{
theta *= PI/180;
RageMatrixIdentity(pOut);
pOut->m[0][0] = cosf(theta);
pOut->m[1][1] = pOut->m[0][0];
pOut->m[0][1] = sinf(theta);
pOut->m[1][0] = -pOut->m[0][1];
}
RageDisplay::RageDisplay()
{
RageMatrixIdentity( &g_CenteringMatrix );
g_ProjectionStack = MatrixStack();
g_ViewStack = MatrixStack();
g_WorldStack = MatrixStack();
g_TextureStack = MatrixStack();
// Register with Lua.
{
Lua *L = LUA->Get();
lua_pushstring( L, "DISPLAY" );
this->PushSelf( L );
lua_settable( L, LUA_GLOBALSINDEX );
LUA->Release( L );
}
}
void RageMatrixSkewX( RageMatrix* pOut, float fAmount )
{
RageMatrixIdentity(pOut);
pOut->m[1][0] = fAmount;
}
// Loads identity in the current matrix.
void LoadIdentity()
{
RageMatrixIdentity( &stack.back() );
}
RageMatrix RageMatrixIdentity()
{
RageMatrix m;
RageMatrixIdentity( &m );
return m;
}