// This function called by both OpenGL (GLUT) and DirectX
void mouse_drag_func ( int x, int y )
{
if ( guiMouseDrag ( x, y ) ) return; // event handling for nv2D GUIs
int dx = x - last_x;
int dy = y - last_y;
float deltx = window_width / cam.getToPos().z;
float delty = window_height / cam.getToPos().z;
// Camera interaction
int mode = 0;
switch ( mode ) {
case 0:
if ( dragging == DRAG_LEFT ) {
glide += Vector3DF( dx / cam.getToPos().z, 0, 0);
cam.moveToPos ( 0, dy, 0 );
} else if ( dragging == DRAG_RIGHT ) {
cam.moveToPos ( 0, 0, -dy*0.001 );
if ( cam.to_pos.z < 0.001 ) cam.to_pos.z = 0.001;
}
break;
}
last_x = x;
last_y = y;
}
// Main display loop
void display ()
{
cam.moveToPos ( glide.x, 0, 0 );
glide.x *= 0.8;
PERF_PUSH ( "frame" );
// Clear framebuffers. OpenGL
glClearColor( 0.1, 0.1, 0.1, 0.0 );
glClear ( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
drawOverlay ();
drawGui ();
draw2D ();
#ifdef USE_DX
// DirectX - Swap buffers
checkHR ( g_pSwapChain->Present ( 0, 0 ) );
#else
// OpenGL - Swap buffers
SwapBuffers ( g_hDC );
#endif
PERF_POP ();
frame++;
}
