/*
 * This file is part of SpongeAPI, licensed under the MIT License (MIT).
 *
 * Copyright (c) SpongePowered <https://www.spongepowered.org>
 * Copyright (c) contributors
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */
package org.spongepowered.api.projectile.source;

import org.spongepowered.api.entity.Entity;
import org.spongepowered.api.entity.living.golem.Shulker;
import org.spongepowered.api.entity.projectile.EntityTargetingProjectile;
import org.spongepowered.api.entity.projectile.Projectile;
import org.spongepowered.math.vector.Vector3d;

import java.util.Optional;

/**
 * Represents a valid source of a projectile.
 */
public interface ProjectileSource {

    /**
     * Launches a {@link Projectile} from this projectile source.
     *
     * @param projectileClass The class of the projectile
     * @param <T> The Type of Projectile
     * @return The projectile instance if it was launched, or absent
     */
    <T extends Projectile> Optional<T> launchProjectile(Class<T> projectileClass);

    /**
     * Launches a {@link Projectile} from this projectile source.
     *
     * @param projectileClass The class of the projectile
     * @param velocity The velocity to launch the projectile
     * @param <T> The Type of Projectile
     * @return The projectile instance if it was launched, or absent
     */
    <T extends Projectile> Optional<T> launchProjectile(Class<T> projectileClass, Vector3d velocity);

    /**
     * Launches a new {@link Projectile} from this projectile source.
     *
     * @param projectileClass The class of the projectile
     * @param <T> The Type of Projectile
     * @param target the target to launch the projectile at
     *
     * @return the projectile if successfully launched, {@link Optional#empty()} otherwise
     */
    <T extends Projectile> Optional<T> launchToTarget(Class<T> projectileClass, Entity target);
}

/*
 * This file is part of SpongeAPI, licensed under the MIT License (MIT).
 *
 * Copyright (c) SpongePowered <https://www.spongepowered.org>
 * Copyright (c) contributors
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */
package org.spongepowered.api.projectile.source;

import org.spongepowered.api.entity.Entity;
import org.spongepowered.api.entity.projectile.Projectile;
import org.spongepowered.math.vector.Vector3d;

import java.util.Optional;

/**
 * Represents a valid source of a projectile.
 */
public interface ProjectileSource {

    /**
     * Launches a {@link Projectile} from this projectile source.
     *
     * @param projectileClass The class of the projectile
     * @param <T> The Type of Projectile
     * @return The projectile instance if it was launched, or absent
     */
    <T extends Projectile> Optional<T> launchProjectile(Class<T> projectileClass);

    /**
     * Launches a {@link Projectile} from this projectile source.
     *
     * @param projectileClass The class of the projectile
     * @param velocity The velocity to launch the projectile
     * @param <T> The Type of Projectile
     * @return The projectile instance if it was launched, or absent
     */
    <T extends Projectile> Optional<T> launchProjectile(Class<T> projectileClass, Vector3d velocity);

    /**
     * Launches a new {@link Projectile} from this projectile source.
     *
     * @param projectileClass The class of the projectile
     * @param <T> The Type of Projectile
     * @param target the target to launch the projectile at
     *
     * @return the projectile if successfully launched, {@link Optional#empty()} otherwise
     */
    <T extends Projectile> Optional<T> launchProjectileTo(Class<T> projectileClass, Entity target);
}

Rename launchToTarget to launchProjectileTo.