void MainScene::update(float dt)
{
//srand((unsigned int)time(0));
if(CCRANDOM_0_1() < 0.02)
{
int type = CCRANDOM_0_1()*7;
std::string s = "0.png";
s[0] = type+'0';
Gem* gem = new Gem();
CCSprite* sprt = CCSprite::createWithSpriteFrameName(s.c_str());
int x = CCRANDOM_0_1()*size.width;
int y = size.height+(size.height/(ROW+2))/2;
float scale = CCRANDOM_0_1()*0.8+0.2;
int speed = CCRANDOM_0_1()*5;
sprt->setPosition(ccp(x, y));
sprt->setScale(scale);
node->addChild(sprt);
gem->setSprite(sprt);
gem->setType((GemType)type);
gem->setSpeed(speed);
fallingGems.push_back(gem);
}
for(int i = fallingGems.size()-1; i >= 0; i--)
{
Gem* gem = fallingGems.at(i);
CCPoint pos = gem->getSprite()->getPosition();
pos.y -= gem->getSpeed();
gem->getSprite()->setPosition(pos);
if(pos.y < -size.height/(ROW+2)/2)
{
node->removeChild(gem->getSprite(), true);
vector<Gem*>::iterator it = fallingGems.begin()+i;
fallingGems.erase(it);
}
}
}
// Handle falling gems
void Grid::gemsFalling(float dt)
{
bool falling = false;
for (int x = 0; x < Width; x++)
{
for (int y = Height - 1; y >= 0; y--)
{
Gem* g = Gems[y * Width + x];
Gem* gem_below = Gems[(y + 1) * Width + x];
if (g != 0 && gem_below == 0)
{
int old_x, old_y;
screenToGrid((int)g->m_X, (int)g->m_Y, old_x, old_y);
float dy = Gem::gemFallSpeed * g->m_ScaleY * dt; // Scale fall speed to match different height displays
if (dy > g->m_H - 1)
dy = g->m_H - 1;
g->m_Y += dy;
int new_x, new_y;
screenToGrid((int)g->m_X, (int)g->m_Y, new_x, new_y);
if (new_y == y)
{
// Still in same block
falling = true;
}
else
{
// Moved into new block below
if (Gems[new_y * Width + new_x] == 0)
{
// Remove from previous grid cell and insert into new empty cell below
Gems[old_y * Width + old_x] = 0;
Gems[new_y * Width + new_x] = g;
falling = true;
if (Gems[(new_y + 1) * Width + new_x] != 0)
{
// Position sprite because it may have gone over boundary
g->m_Y = (float)new_y * GemSize + GridOriginY;
}
}
}
}
}
}
// Traverse removed gems and drop them back into the grid
std::list<Gem*> removals;
bool new_gem = false;
if (falling == false)
{
if (MatchedGems.size() > 0)
{
Game* game = (Game*)g_pSceneManager->Find("game");
falling = true;
for (std::list<Gem*>::iterator it = MatchedGems.begin(); it != MatchedGems.end(); ++it)
{
Gem* g = *it;
int x, y;
screenToGrid((int)g->m_X, (int)g->m_Y, x, y);
if (Gems[x] == 0)
{
// Add new gem
Gems[x] = g;
int type = rand() % MAX_GEM_TYPES;
g->setType(type);
g->m_Y = (float)GridOriginY;
game->GetTweener().Tween(0.5f,
FLOAT, &g->m_Alpha, 1.0f,
EASING, Ease::sineOut,
END);
removals.push_back(*it);
new_gem = true;
}
}
}
}
// Cleanup removed gems in mathed gems list
for (std::list<Gem*>::iterator it = removals.begin(); it != removals.end(); ++it)
MatchedGems.remove(*it);
if (new_gem == true)
{
g_pAudio->PlaySound("audio/gem_land.wav");
}
if (falling == false)
{
if (!checkMatches())
{
// Switch back to waiting for gem selection state
Game* game = (Game*)g_pSceneManager->Find("game");
game->changeGameState(waitingFirstGem);
}
}
}
