void App::Update(const delta_t dt, const delta_t elapsed)
{
// retrieve current mouse state
mouse_info mi = GetMouse();
string buffer;
// write program information to window title
if (blurEnabled) buffer = "[B]";
SetWindowTitle("firefly-demo v%d.%d (FPS: %.2lf)"
" x-%d y-%d %s",
FF_MAJOR_VERSION, FF_MINOR_VERSION,
GetFPS(), mi.x, mi.y, buffer.c_str());
// calculate movement rate and direction
bool forceBlur = false;
if (GetKey('A')) {
cameraFrame.MoveRight(MOVE_SPEED*dt);
forceBlur = true;
}
if (GetKey('D')) {
cameraFrame.MoveRight(-MOVE_SPEED*dt);
forceBlur = true;
}
if (GetKey('W')) {
cameraFrame.MoveForward(MOVE_SPEED*dt);
forceBlur = true;
}
if (GetKey('S')) {
cameraFrame.MoveForward(-MOVE_SPEED*dt);
forceBlur = true;
}
// calculate mouse delta
float delta = (GetWidth() / 2.f) - mi.x;
moveBlur = (abs(delta) > BLUR_MIN_DELTA || forceBlur) ? true : false;
cameraFrame.RotateWorld( -delta * TURN_SPEED * dt / 4, 0, 1, 0);
// keep the mouse centered
glfwSetMousePos(GetWidth() / 2, GetHeight() / 2);
// handle current jumping state
if (jumping) {
jumpVel -= JUMP_GRAVITY * dt;
cameraFrame.MoveUp(jumpVel * dt);
// if we have landed
if (cameraFrame.GetOriginY() < 0) {
jumping = false;
jumpVel = 0;
// make sure we are positioned back at ground height
float dist = cameraFrame.GetOriginY();
cameraFrame.MoveUp(cameraFrame.GetOriginY() - dist);
}
}
}
