Java tutorial
/* * Dice heroes is a turn based rpg-strategy game where characters are dice. * Copyright (C) 2016 Vladislav Protsenko * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. */ package com.vlaaad.dice.game.actions.imp; import com.badlogic.gdx.math.Vector2; import com.badlogic.gdx.utils.Array; import com.vlaaad.common.util.MapHelper; import com.vlaaad.common.util.Numbers; import com.vlaaad.common.util.futures.Future; import com.vlaaad.common.util.futures.IFuture; import com.vlaaad.common.util.futures.IFutureListener; import com.vlaaad.dice.game.actions.CreatureAction; import com.vlaaad.dice.game.actions.results.IActionResult; import com.vlaaad.dice.game.actions.results.imp.PoisonShotResult; import com.vlaaad.dice.game.config.abilities.Ability; import com.vlaaad.dice.game.config.attributes.Attribute; import com.vlaaad.dice.game.config.thesaurus.Thesaurus; import com.vlaaad.dice.game.effects.PoisonEffect; import com.vlaaad.dice.game.objects.Creature; import com.vlaaad.dice.game.objects.WorldObject; import com.vlaaad.dice.game.world.World; import com.vlaaad.dice.game.world.behaviours.BehaviourRequest; import com.vlaaad.dice.game.world.behaviours.params.AbilityCreatureParams; import com.vlaaad.dice.game.world.controllers.BehaviourController; import java.util.Map; /** * Created 03.02.14 by vlaaad */ public class PoisonShot extends CreatureAction { private static final Vector2 tmp1 = new Vector2(); private static final Vector2 tmp2 = new Vector2(); private float radius; private int turnCount; public PoisonShot(Ability owner) { super(owner); } @Override protected void doInit(Object setup) { //{radius: 3, turns: 6} Map data = (Map) setup; radius = MapHelper.get(data, "radius", Numbers.ONE).floatValue(); turnCount = MapHelper.get(data, "turns", Numbers.ONE).intValue(); } @Override public boolean canBeApplied(Creature creature, Thesaurus.LocalizationData reasonData) { boolean res = super.canBeApplied(creature, reasonData); if (!res) return false; if (creature.world == null) return false; int targets = findTargets(creature, Creature.CreatureRelation.enemy, creature.getX(), creature.getY(), creature.world, radius).size; if (targets == 0) { reasonData.key = "ui-no-near-targets"; return false; } return true; } @Override public IFuture<IActionResult> apply(final Creature creature, World world) { Array<Creature> targets = findTargets(creature, Creature.CreatureRelation.enemy, creature.getX(), creature.getY(), creature.world, radius); if (targets.size == 0) return Future.completed(IActionResult.NOTHING); if (targets.size == 1) return Future.completed(calcResult(creature, targets.first())); final Future<IActionResult> future = new Future<IActionResult>(); world.getController(BehaviourController.class).get(creature) .request(BehaviourRequest.CREATURE, new AbilityCreatureParams(creature, owner, targets)) .addListener(new IFutureListener<Creature>() { @Override public void onHappened(Creature target) { future.happen(calcResult(creature, target)); } }); return future; } private IActionResult calcResult(Creature creature, Creature target) { return new PoisonShotResult(creature, target, turnCount, owner); } public static Array<Creature> findTargets(Creature creature, Creature.CreatureRelation relation, int x, int y, World world, float distance) { Vector2 creaturePos = tmp1.set(x, y); Array<Creature> result = new Array<Creature>(); for (WorldObject object : world) { if (!(object instanceof Creature)) continue; Creature check = (Creature) object; if (!check.get(Attribute.canBeSelected) || !creature.inRelation(relation, check)) continue; if (check.hasEffect(PoisonEffect.class)) continue; Vector2 checkPos = tmp2.set(check.getX(), check.getY()); if (checkPos.dst(creaturePos) > distance) continue; result.add(check); } return result; } }