void CreditScene::update(float) {
if (_buttons.empty())
return;
if(_trigged) {
if (Graphics::getInstance()->isBlack()) {
(*_cursor)->GET_CMP(ButtonCmp)->execute();
}
return;
}
auto playerInputCmp = Scene::getPlayerInput()->GET_CMP(InputCmp);
if (checkConfirmButton(playerInputCmp->_isJump)){
Graphics::getInstance()->fadeOut(1.5f);
_trigged = true;
} else if (checkUpButton(playerInputCmp->_isUp)) {
_darker();
if (_cursor == _buttons.begin()) {
_cursor = --(_buttons.end());
} else {
--_cursor;
}
_brighter();
} else if (checkDownButton(playerInputCmp->_isDown)) {
_darker();
++_cursor;
if (_cursor == _buttons.end()) {
_cursor = _buttons.begin();
}
_brighter();
}
}
static colour
brighten(colour c, colour against)
{
uint r = red(c), g = green(c), b = blue(c);
// "brighten" away from the background:
// if we are closer to black than the contrast reference, rather darken
bool darken = colour_dist(c, 0) < colour_dist(against, 0);
#ifdef debug_brighten
printf ("%s %06X against %06X\n", darken ? "darkening" : "brighting", c, against);
#endif
uint _brighter() {
uint s = min(85, 255 - max(max(r, g), b));
return make_colour(r + s, g + s, b + s);
}
uint _darker() {
int sub = 70;
return make_colour(max(0, (int)r - sub), max(0, (int)g - sub), max(0, (int)b - sub));
}
colour bright;
uint thrsh = 22222; // contrast threshhold;
// if we're closer to either fg or bg,
// turn "brightening" into the other direction
if (darken) {
bright = _darker();
#ifdef debug_brighten
printf ("darker %06X -> %06X dist %d\n", c, bright, colour_dist(c, bright));
#endif
if (colour_dist(bright, c) < thrsh || colour_dist(bright, against) < thrsh) {
bright = _brighter();
#ifdef debug_brighten
printf (" fix %06X -> %06X dist %d/%d\n", c, bright, colour_dist(bright, c), colour_dist(bright, against));
#endif
}
}
else {
bright = _brighter();
#ifdef debug_brighten
printf ("lightr %06X -> %06X dist %d\n", c, bright, colour_dist(c, bright));
#endif
if (colour_dist(bright, c) < thrsh || colour_dist(bright, against) < thrsh) {
bright = _darker();
#ifdef debug_brighten
printf (" fix %06X -> %06X dist %d/%d\n", c, bright, colour_dist(bright, c), colour_dist(bright, against));
#endif
}
}
return bright;
}
