gameManagers.cpp

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#include "game.h"
 
#define ISPRESSED(ID, X) window.isPressed({confData.playerDefs[ID].keys.X, false})
void Game::manageOnePlayer(playerID pID){
    Player& p = players[pID];
    if(p.hasDeathAnimation()) {
        ++p.deathAnimCounter;
        if (p.deathAnimCounter == 75) {
            p.deathAnimCounter = 0;
        }
    }
    if(p.isEliminated())return;
 
    if (ISPRESSED(pID, left)){
        if(p.x < confData.playersSpeed) p.x = 0;
        else p.x -= confData.playersSpeed;
    }
    if (ISPRESSED(pID, right)){
        if(p.x + confData.playersWidth + confData.playersSpeed >= pm->getScreenWidth()) p.x = pm->getScreenWidth() - confData.playersWidth - 1;
        else p.x += confData.playersSpeed;
    }
 
 
    if(!p.hasDeathAnimation()) {
        if(p.fireCooldown==0) {
            if (ISPRESSED(pID, shoot)) {
                torpedos.emplace_back(p.x + confData.playersWidth / 2, pm->getScreenHeight() - PLAYER_HEIGHT, pID);
                p.fireCooldown = confData.playersFireCooldown;
            }
        }else --p.fireCooldown;
    }
}
 
void Game::managePlayers(){
    for(unsigned i=0;i<players.size();++i)manageOnePlayer(i);
}
 
bool Game::manageInvaders(){
    if(!areThereInvadersLeft())return false; // If there are no more invaders we don't need to manage them
 
    // shoot
    if(fireCooldown==0) {
        fireCooldown = confData.invadersFireCooldown + rand() % 25;
 
        unsigned rdCol = grid.randomValidCol();
        // fire !
        missiles.push_back(baseInvPos + Position(
                confData.invadersSize * rdCol + confData.invadersDistance * (rdCol + 0.5),
                confData.invadersSize * (grid[rdCol].size() - 1) + confData.invadersDistance * (grid[rdCol].size() - 1)
        ));
    }else --fireCooldown;
 
    
    if(direction){ // go to the right
        int end = baseInvPos.getX(); // start Position
        end+= grid.size() * confData.invadersSize; // add the invaders
        end+= (grid.size()-1) * confData.invadersDistance; // add the invadersDistance between invaders
        // you got the end position of the invader crowd !
 
        size_t i = grid.size()-1;
        while (grid[i].hasNoValid()){
            end -= (confData.invadersSize + confData.invadersDistance);
            --i;
        }
 
        if(end + confData.invadersSpeed < pm->getScreenWidth()){
            baseInvPos.setX(baseInvPos.getX() + confData.invadersSpeed);
        }
        else{
            baseInvPos.setY(baseInvPos.getY() + confData.invadersSize + confData.invadersDistance);
            direction = !direction;
            return true;
        }
    }
    else{
        size_t i = 0;
        unsigned relativeBasePos = baseInvPos.getX();
        while (grid[i].hasNoValid()){
            relativeBasePos += confData.invadersSize + confData.invadersDistance;
            ++i;
        }
 
        if(relativeBasePos >= confData.invadersSpeed){
            baseInvPos.setX(baseInvPos.getX() - confData.invadersSpeed);
        }else{
            baseInvPos.setY(baseInvPos.getY() + confData.invadersSize + confData.invadersDistance);
            direction = !direction;
            return true;
        }
    }
    return false;
 
}
 
void Game::remCollidingProjectiles(){
 
    auto miss = missiles.begin();
    auto tor = torpedos.begin();
 
    while(miss != missiles.end()){
        bool wasColliding = false;
        while(tor != torpedos.end()){
 
            // missiles can't be right under torpedos, so that must means they are colliding in Y
            if(miss->getY() + confData.missilesLength < tor->getY()){
 
            }
            if(areLinesColliding( // now check if they collide in X
                    miss->getX(), miss->getX() + confData.missilesWidth,
                    tor->getX(), tor->getX() + confData.torpedosWidth)){
                missiles.erase(miss);
                torpedos.erase(tor);
                wasColliding = true;
                break;
            }
            ++tor;
        }
        /* if it was colling, it was removed and his Position is now replaced by the next.
         * else, go to the next */
        if(!wasColliding)++miss;
    }
}
 
void Game::moveMissiles() {
    auto miss = missiles.begin();
    while (miss != missiles.end()) {
        if (miss->getY() >= pm->getScreenHeight())missiles.erase(miss);
        else {
            miss->setY(miss->getY()+confData.missilesSpeed);
            ++miss;
        }
    }
}
 
void Game::moveTorpedos() {
    auto tor = torpedos.begin();
    while (tor != torpedos.end()) {
        if (tor->getY()+confData.torpedosLength <= 0)torpedos.erase(tor);
        else{
            tor->setY(tor->getY()-confData.torpedosSpeed);
            ++tor;
        }
    }
}
 
void Game::checkMissilesAndPlayers() {
    auto miss_ite = missiles.begin();
    while(miss_ite!=missiles.end()){
        bool wasColliding = false;
        if(miss_ite->getY()>=pm->getScreenHeight()-PLAYER_HEIGHT){ // check collision on Y
            // now check collision on X (with both players)
            for(Player& p : players){
                if(p.isPlaying()){
                    if(areLinesColliding(
                            miss_ite->getX(), miss_ite->getX() + confData.missilesWidth,
                            p.x, p.x + confData.playersWidth)){
                        wasColliding = true;
                        p.damage();
                        // do not break, the second player also deserves to be hit
                    }
                }
            }
        }
        if(wasColliding)missiles.erase(miss_ite);
        else ++miss_ite;
    }
}
 
bool Game::checkTorpedosAndInvaders() {
    auto tor_ite = torpedos.begin();
    while(tor_ite!=torpedos.end()){
        unsigned i=0;
        for(;i<grid.size();++i){
 
            unsigned alienIndex = grid[i].getOutterInvader();
            if(alienIndex==grid[i].size())continue;
            // calculate top-left Position of invader
            Position pos = baseInvPos + Position(
                    confData.invadersSize*i+confData.invadersDistance*i,
                    confData.invadersSize*alienIndex+confData.invadersDistance*alienIndex
            );
            // check collision on Y (invaders can actually be "under" torpedos, so we check both lower and upper bounds
            if(pos.getY()+confData.invadersSize>=tor_ite->getY() &&
                    pos.getY()<=tor_ite->getY()+confData.torpedosLength){
                // now check collision on X
                if(areLinesColliding( // now check collision on X
                        tor_ite->getX(), tor_ite->getX() + confData.torpedosWidth,
                        pos.getX(), pos.getX() + confData.invadersSize)){
 
 
                    InvaderType invType = grid[i][alienIndex];
                    players[tor_ite->owner].score += confData.invadersDef.at(invType).points;
                    torpedos.erase(tor_ite);
 
                    grid[i][alienIndex] = InvaderType::NONE;
 
                    if(!areThereInvadersLeft()) return true;
                    break;
                }
            }
        }
        if(i==grid.size()) ++tor_ite;
    }
    return false;
}
 
bool Game::invadersTouchPlayer() const {
    return any_of(grid.begin(), grid.end(), [this](const InvadersColumn& line) -> bool {
        unsigned outter = line.getOutterInvader();
        return this->baseInvPos.getY() + confData.invadersSize * (outter + 1)
               +confData.invadersDistance*outter
            >= pm->getScreenHeight() - PLAYER_HEIGHT;
    });
}