コード例 #1
0
ファイル: World.cpp プロジェクト: jimmybeer/TAGEngine
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();
}
コード例 #2
0
ファイル: World.cpp プロジェクト: kevin5396/Hellfire
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();
}