PowerupType CPowerupManager::GetPowerup( const Core::CCoordinates& coordinates ) const
{
return GetPowerup( coordinates.x, coordinates.y );
}
void CPowerupManager::HandleStepForPlayer( CPlayer& activePlayer, std::vector<CPlayer>& players, std::set<CPlayer*>& crashedPlayers )
{
if( activePlayer.GetPosition() == activePlayer.GetPreviousPosition() ) {
return;
}
if( GetPowerup( activePlayer.GetPosition().x, activePlayer.GetPosition().y ) != NONE ) {
switch( powerups[activePlayer.GetPosition()] ) {
case WALL:
powerups.erase( activePlayer.GetPosition() );
crashedPlayers.insert( &activePlayer );
break;
case SAND:
powerups.erase( activePlayer.GetPosition() );
activePlayer.SetInertia( { 0, 0 } );
break;
case OIL:
powerups.erase( activePlayer.GetPosition() );
activePlayer.SetInertia( { 0, 0 } );
while( true ) {
int direction = std::rand() % 9 + 1;
if( direction != 5 ) {
activePlayer.Move( Direction( direction ) );
break;
}
}
activePlayer.SetInertia( { 0, 0 } );
break;
case MINE:
powerups[activePlayer.GetPosition()] = MINE_ACTIVE;
break;
case MINE_ACTIVE:
powerups.erase( activePlayer.GetPosition() );
crashedPlayers.insert( &activePlayer );
break;
case LAZER:
{
CCoordinates u = activePlayer.GetPosition() - activePlayer.GetPreviousPosition();
double a = std::hypot( u.x, u.y ); // a > 0 всегда, т.к. соответствующая проверка выполнялась в начале функции
for( auto& player : players ) {
// геометрия. u - вектор движения, v - вектор от стреляющего до другого игрока
// a и b - длины этих векторов соответственно, dot - скалярное произведение
CCoordinates v = player.GetPosition() - activePlayer.GetPosition();
double dot = u.x * v.x + u.y * v.y;
double b = std::hypot( v.x, v.y );
if( dot > 0 && b > 0 && std::sqrt( 1 - std::pow( dot / (a * b), 2 ) ) * b < 0.3 ) {
crashedPlayers.insert( &player );
}
}
powerups.erase( activePlayer.GetPosition() );
shots.push_back( std::make_pair(
std::make_pair( activePlayer.GetPosition().x, activePlayer.GetPosition().y ),
std::make_pair( float(u.x) / a, float(u.y) / a ) ) );
break;
}
case SHIELD:
powerups.erase( activePlayer.GetPosition() );
activePlayer.ActivateShield();
break;
default: break;
}
}
for( auto& player : players ) {
handleWalls( player, crashedPlayers );
}
}
//performs clipping each frame
void Clipping(void)
{
LIST * cur1;
LIST * cur2;
LIST * next;
for(cur1 = g_asteroid_list; cur1; cur1 = next)
{
next = cur1->next;
if(g_ships
&& !g_player.wait_time
&& (((ASTEROID *)cur1->d)->region & g_player.region)
&& PolyInCircle(&g_player.clip_poly, &(((ASTEROID *)cur1->d)->clip_circle))) //if the player hits the asteroid
{
PlayerHit();
AsteroidHit(cur1, 0);
continue;
}
for(cur2 = g_alien_list; cur2; cur2 = cur2->next)
{
if((((ASTEROID *)cur1->d)->region & ((ALIEN *)cur2->d)->region)
&& (PolyInCircle(&(((ALIEN *)cur2->d)->clip_poly/*s[0]*/), &(((ASTEROID *)cur1->d)->clip_circle))
/*|| PolyInCircle(&(((ALIEN *)cur2->d)->clip_polys[1]), &(((ASTEROID *)cur1->d)->clip_circle))
|| PolyInCircle(&(((ALIEN *)cur2->d)->clip_polys[2]), &(((ASTEROID *)cur1->d)->clip_circle))*/))
{
AlienHit(cur2, 0);
AsteroidHit(cur1, 0);
break;
}
}
if(cur2) //if we broke early from the loop
continue;
for(cur2 = g_shot_list; cur2; cur2 = cur2->next)
{
if((((ASTEROID *)cur1->d)->region & ((SHOT *)cur2->d)->region)
&& PointInCircle(&(((SHOT *)cur2->d)->pos), &(((ASTEROID *)cur1->d)->clip_circle))) //if any shot hits the asteroid
{
AsteroidHit(cur1, ((SHOT *)cur2->d)->player_owned);
RemoveNode(cur2, &g_shot_list);
break;
}
}
if(cur2) //if we broke early from the loop
continue;
}
for(cur1 = g_shot_list; cur1; cur1 = next)
{
next = cur1->next;
if(!((SHOT *)cur1->d)->player_owned
&& g_ships
&& !g_player.wait_time
&& (g_player.region & ((SHOT *)cur1->d)->region)
&& PointInPoly(&(((SHOT *)cur1->d)->pos), &g_player.clip_poly)) //if the alien shot is inside player
{
RemoveNode(cur1, &g_shot_list);
PlayerHit();
continue;
}
if(((SHOT *)cur1->d)->player_owned)
{
for(cur2 = g_alien_list; cur2; cur2 = cur2->next)
{
if((((SHOT *)cur1->d)->region & ((ALIEN *)cur2->d)->region)
&& (PointInPoly(&(((SHOT *)cur1->d)->pos), &(((ALIEN *)cur2->d)->clip_poly/*s[0]*/))
/*|| PointInPoly(&(((SHOT *)cur1->d)->pos), &(((ALIEN *)cur2->d)->clip_polys[1]))
|| PointInPoly(&(((SHOT *)cur1->d)->pos), &(((ALIEN *)cur2->d)->clip_polys[2]))*/))
{
RemoveNode(cur1, &g_shot_list);
AlienHit(cur2, 1);
break;
}
}
if(cur2)
continue;
}
for(cur2 = g_powerup_list; cur2; cur2 = cur2->next)
{
if((((SHOT *)cur1->d)->region & ((POWERUP *)cur2->d)->region)
&& PointInCircle(&(((SHOT *)cur1->d)->pos), &(((POWERUP *)cur2->d)->clip_circle)))
{
PowerupHit(cur2, ((SHOT *)cur1->d)->player_owned);
RemoveNode(cur1, &g_shot_list);
break;
}
}
if(cur2)
continue;
}
if(g_ships
&& !g_player.wait_time)
{
for(cur1 = g_alien_list; cur1; cur1 = cur1->next)
{
if((g_player.region & ((ALIEN *)cur1->d)->region)
&& (PolyInPoly(&g_player.clip_poly, &(((ALIEN *)cur1->d)->clip_poly/*s[0]*/))
/*|| PolyInPoly(&g_player.clip_poly, &(((ALIEN *)cur1->d)->clip_polys[1]))
|| PolyInPoly(&g_player.clip_poly, &(((ALIEN *)cur1->d)->clip_polys[2]))*/))
{
PlayerHit();
AlienHit(cur1, 0);
break;
}
}
}
if(g_ships)
{
for(cur1 = g_powerup_list; cur1; cur1 = next)
{
next = cur1->next;
if((g_player.region & ((POWERUP *)cur1->d)->region)
&& PolyInCircle(&g_player.clip_poly, &(((POWERUP *)cur1->d)->clip_circle)))
{
GetPowerup(cur1);
continue;
}
}
}
}