void World::guideMissiles()
{
// Setup command that stores all enemies in mActiveEnemies
Command enemyCollector;
enemyCollector.category = Category::EnemyAircraft;
enemyCollector.action = derivedAction<Aircraft>([this] (Aircraft& enemy, sf::Time)
{
if(!enemy.isDestroyed())
{
mActiveEnemies.push_back(&enemy);
}
});
// Setup command that guides all missiles to the enemy which is currently closest to the player
Command missileGuider;
missileGuider.category = Category::AlliedProjectile;
missileGuider.action = derivedAction<Projectile>([this] (Projectile& missile, sf::Time)
{
// Ignore unguided bullets
if(!missile.isGuided())
{
return;
}
float minDistance = std::numeric_limits<float>::max();
Aircraft* closestEnemy = nullptr;
// Find closest enemy
for(Aircraft* enemy : mActiveEnemies)
{
float enemyDistance = distance(missile, *enemy);
if(enemyDistance < minDistance)
{
closestEnemy = enemy;
minDistance = enemyDistance;
}
}
if(closestEnemy)
{
missile.guideTowards(closestEnemy->getWorldPosition());
}
});
// Push commands, reset active enemies
mCommandQueue.push(enemyCollector);
mCommandQueue.push(missileGuider);
mActiveEnemies.clear();
}
void World::guideMissiles()
{
Command enemyCollector;
enemyCollector.category = Category::EnemyAircraft;
enemyCollector.action = derivedAction<Aircraft>(
[this](Aircraft& enemy, sf::Time)
{
if(!enemy.isDestroyed())
mActiveEnemies.push_back(&enemy);
});
Command missileGuider;
missileGuider.category = Category::AlliedProjectile;
missileGuider.action = derivedAction<Projectile>(
[this](Projectile& missile, sf::Time)
{
if(!missile.isGuided())
return;
float minDistance = std::numeric_limits<float>::max();
Aircraft* closestEnemy = nullptr;
for(auto* enemy : mActiveEnemies)
{
float enemyDistance = distance(missile, *enemy);
if(enemyDistance < minDistance)
{
closestEnemy = enemy;
minDistance = enemyDistance;
}
}
if (closestEnemy)
{
missile.guideTowards(closestEnemy->getWorldPosition());
}
});
mCommandQueue.push(enemyCollector);
mCommandQueue.push(missileGuider);
mActiveEnemies.clear();
}
