コード例 #1
0
bool AISystem::MoveUnitTowardsEntity(Entity* selectedUnit, Entity* entity)
{
    World* world = engine->GetContext()->GetWorld();
    Pathfinder* pathfinder = engine->GetContext()->GetPathfinder();

    vector<Grid> path = pathfinder->FindPath(selectedUnit, entity);

    if (path.size() > 0)
    {
        PositionComponent* upc = dynamic_cast<PositionComponent*>(selectedUnit->GetComponent(Component::POSITION));

        Grid lastStep = *(path.end() - 1);
        SelectTarget(Graphics::Instance().ToPx(lastStep));

        engine->GetContext()->SetGameState(Context::PL_MOVE);

        selectedUnit->Add(new AnimationComponent(path, upc->pos));
        engine->UpdateEntity(selectedUnit);

        return true;
    }
    else
    {
        return false;
    }
}
コード例 #2
0
void SelectionSystem::CreateCurrentPath(Entity* unit, Entity* tile)
{
    World* world = engine->GetContext()->GetWorld();
    Pathfinder* pathfinder = engine->GetContext()->GetPathfinder();

    int remainingAP = dynamic_cast<UnitComponent*>(unit->GetComponent(Component::UNIT))->ap;
    std::vector<Grid> path = pathfinder->FindPath(unit, tile);

    ClearCurrentPath();

	// make new Entities with the selection sprite and add them to the engine
	int counter = 1;

	for (unsigned int i = 0; i < path.size(); i++)
	{
		Entity* step = new Entity();

		if (counter <= remainingAP)
		{
			
			step->Add(new TextureComponent({ Graphics::SPRITE_PATH }));
			
		}
		else
		{
			step->Add(new TextureComponent({ Graphics::SPRITE_PATH_FAR }));
		}

		step->Add(new PositionComponent(path[i], 1));
		engine->AddEntity(step);
		currentPath.push_back(step);

		counter++;
	}
}
コード例 #3
0
Entity* AISystem::FilterNearestEntity(Entity* selectedUnit, set<Entity*> entities)
{
    Pathfinder* pathfinder = engine->GetContext()->GetPathfinder();

    Entity* nearest = nullptr;
    int pathSize;
    int shortestPathSize = INT_MAX;

    for (Entity* entity : entities)
    {
        vector<Grid> path = pathfinder->FindPath(selectedUnit, entity);
        pathSize = static_cast<int>(path.size());

        if (pathSize > 0 && pathSize < shortestPathSize)
        {
            shortestPathSize = pathSize;
            nearest = entity;
        }
    }

    return nearest;
}