Examples with Component org.terasology.gestalt.entitysystem.component.Component used on opensource projects

Example 16 with Component

use of org.terasology.gestalt.entitysystem.component.Component in project Terasology by MovingBlocks.

the class CreateWorldEntity method step.

@Override
public boolean step() {
    this.entityManager = context.get(EntityManager.class);
    this.worldGenerator = context.get(WorldGenerator.class);
    this.config = context.get(Config.class);
    this.chunkProvider = context.get(ChunkProvider.class);
    this.worldConfigurator = worldGenerator.getConfigurator();
    Iterator<EntityRef> worldEntityIterator = entityManager.getEntitiesWith(WorldComponent.class).iterator();
    if (worldEntityIterator.hasNext()) {
        EntityRef worldEntity = worldEntityIterator.next();
        worldEntityIterator.forEachRemaining(w -> logger.warn("Ignored extra world {}", w));
        chunkProvider.setWorldEntity(worldEntity);
        // replace the world generator values from the components in the world entity
        worldConfigurator.getProperties().forEach((key, currentComponent) -> {
            Component component = worldEntity.getComponent(currentComponent.getClass());
            if (component != null) {
                worldConfigurator.setProperty(key, component);
            }
        });
    } else {
        // create world entity if one does not exist.
        EntityRef worldEntity = createWorldPoolsAndEntity();
        chunkProvider.setWorldEntity(worldEntity);
        // transfer all world generation parameters from Config to WorldEntity
        SimpleUri generatorUri = worldGenerator.getUri();
        worldConfigurator.getProperties().forEach((key, currentComponent) -> {
            Class<? extends Component> clazz = currentComponent.getClass();
            Component moduleComponent = gameManifest.getModuleConfig(generatorUri, key, clazz);
            if (moduleComponent != null) {
                // configure entity from component
                worldEntity.addComponent(moduleComponent);
                worldConfigurator.setProperty(key, moduleComponent);
            } else {
                worldEntity.addComponent(currentComponent);
            }
        });
    }
    return true;
}

Example 17 with Component

use of org.terasology.gestalt.entitysystem.component.Component in project Terasology by MovingBlocks.

the class BlockTypeEntityGenerator method generateBlockTypeEntity.

private void generateBlockTypeEntity(Block block) {
    EntityBuilder builder = entityManager.newBuilder(blockTypePrefab);
    builder.getComponent(BlockTypeComponent.class).block = block;
    // TODO: Copy across settings as necessary
    Optional<Prefab> prefab = block.getPrefab();
    if (prefab.isPresent()) {
        for (Component comp : prefab.get().iterateComponents()) {
            if (!(comp instanceof NetworkComponent)) {
                builder.addComponent(entityManager.getComponentLibrary().copy(comp));
            }
        }
    }
    block.setEntity(builder.build());
}

Example 18 with Component

use of org.terasology.gestalt.entitysystem.component.Component in project Terasology by MovingBlocks.

the class CoreCommands method spawnPrefab.

/**
 * Spawns an instance of a prefab in the world
 *
 * @param sender     Sender of command
 * @param prefabName String containing prefab name
 * @return String containing final message
 */
@Command(shortDescription = "Spawns an instance of a prefab in the world", runOnServer = true, requiredPermission = PermissionManager.CHEAT_PERMISSION)
public String spawnPrefab(@Sender EntityRef sender, @CommandParam("prefabId") String prefabName) {
    ClientComponent clientComponent = sender.getComponent(ClientComponent.class);
    LocationComponent characterLocation = clientComponent.character.getComponent(LocationComponent.class);
    Vector3f spawnPos = characterLocation.getWorldPosition(new Vector3f());
    Vector3f offset = characterLocation.getWorldDirection(new Vector3f());
    offset.mul(2);
    spawnPos.add(offset);
    Vector3f dir = characterLocation.getWorldDirection(new Vector3f());
    dir.y = 0;
    if (dir.lengthSquared() > 0.001f) {
        dir.normalize();
    } else {
        dir.set(Direction.FORWARD.asVector3f());
    }
    return Assets.getPrefab(prefabName).map(prefab -> {
        LocationComponent loc = prefab.getComponent(LocationComponent.class);
        if (loc != null) {
            entityManager.create(prefab, spawnPos);
            return "Done";
        } else {
            return "Prefab cannot be spawned (no location component)";
        }
    }).orElse("Unknown prefab");
}

Example 19 with Component

use of org.terasology.gestalt.entitysystem.component.Component in project Terasology by MovingBlocks.

the class EventSystemReplayImpl method registerEventHandler.

@Override
public void registerEventHandler(ComponentSystem handler) {
    Class handlerClass = handler.getClass();
    if (!Modifier.isPublic(handlerClass.getModifiers())) {
        logger.error("Cannot register handler {}, must be public", handler.getClass().getName());
        return;
    }
    logger.debug("Registering event handler " + handlerClass.getName());
    for (Method method : handlerClass.getMethods()) {
        ReceiveEvent receiveEventAnnotation = method.getAnnotation(ReceiveEvent.class);
        if (receiveEventAnnotation != null) {
            if (!receiveEventAnnotation.netFilter().isValidFor(networkSystem.getMode().isAuthority(), false)) {
                continue;
            }
            Set<Class<? extends Component>> requiredComponents = Sets.newLinkedHashSet();
            method.setAccessible(true);
            Class<?>[] types = method.getParameterTypes();
            logger.debug("Found method: " + method.toString());
            if (!Event.class.isAssignableFrom(types[0]) || !EntityRef.class.isAssignableFrom(types[1])) {
                logger.error("Invalid event handler method: {}", method.getName());
                return;
            }
            requiredComponents.addAll(Arrays.asList(receiveEventAnnotation.components()));
            List<Class<? extends Component>> componentParams = Lists.newArrayList();
            for (int i = 2; i < types.length; ++i) {
                if (!Component.class.isAssignableFrom(types[i])) {
                    logger.error("Invalid event handler method: {} - {} is not a component class", method.getName(), types[i]);
                    return;
                }
                requiredComponents.add((Class<? extends Component>) types[i]);
                componentParams.add((Class<? extends Component>) types[i]);
            }
            EventSystemReplayImpl.ByteCodeEventHandlerInfo handlerInfo = new EventSystemReplayImpl.ByteCodeEventHandlerInfo(handler, method, receiveEventAnnotation.priority(), receiveEventAnnotation.activity(), requiredComponents, componentParams);
            addEventHandler((Class<? extends Event>) types[0], handlerInfo, requiredComponents);
        }
    }
}

Example 20 with Component

use of org.terasology.gestalt.entitysystem.component.Component in project Terasology by MovingBlocks.

the class EventSystemReplayImpl method originalSend.

// send method of EventSystemImpl
private void originalSend(EntityRef entity, Event event, Component component) {
    if (Thread.currentThread() != mainThread) {
        pendingEvents.offer(new PendingEvent(entity, event, component));
    } else {
        SetMultimap<Class<? extends Component>, EventSystemReplayImpl.EventHandlerInfo> handlers = componentSpecificHandlers.get(event.getClass());
        if (handlers != null) {
            List<EventSystemReplayImpl.EventHandlerInfo> eventHandlers = Lists.newArrayList(handlers.get(component.getClass()));
            eventHandlers.sort(priorityComparator);
            for (EventSystemReplayImpl.EventHandlerInfo eventHandler : eventHandlers) {
                if (eventHandler.isValidFor(entity)) {
                    eventHandler.invoke(entity, event);
                }
            }
        }
    }
}