81 lines
2.7 KiB
Java
81 lines
2.7 KiB
Java
/**
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* GladiatorBrawler is a 2D swordfighting game.
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* Copyright (C) 2015 Jeasonfire/Allexit
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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package com.saltosion.gladiator.systems;
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import com.badlogic.ashley.core.ComponentMapper;
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import com.badlogic.ashley.core.Engine;
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import com.badlogic.ashley.core.Entity;
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import com.badlogic.ashley.core.EntitySystem;
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import com.badlogic.ashley.core.Family;
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import com.badlogic.ashley.utils.ImmutableArray;
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import com.saltosion.gladiator.components.CAI;
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import com.saltosion.gladiator.components.CCombat;
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import com.saltosion.gladiator.components.CPhysics;
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import com.saltosion.gladiator.listeners.AIListener;
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import java.util.ArrayList;
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public class AISystem extends EntitySystem {
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private static final ComponentMapper<CPhysics> pm = ComponentMapper.getFor(CPhysics.class);
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private static final ComponentMapper<CAI> aim = ComponentMapper.getFor(CAI.class);
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private ImmutableArray<Entity> entities;
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@Override
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public void addedToEngine(Engine engine) {
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updateEntities(engine);
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}
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@Override
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public void update(float deltaTime) {
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// Loop through all entities that have CCombat
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for (int i = 0; i < entities.size(); i++) {
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// If current entity doesn't have CAI, skip current entity
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if (aim.get(entities.get(i)) == null) {
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continue;
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}
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CPhysics cp0 = pm.get(entities.get(i));
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CAI cai = aim.get(entities.get(i));
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// React
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ArrayList<Entity> reactEntities = new ArrayList<Entity>();
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// Loop through all entities with CCombat
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for (int j = 0; j < entities.size(); j++) {
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if (i == j) {
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continue;
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}
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CPhysics cp1 = pm.get(entities.get(j));
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float x = cp1.getPosition().x - cp0.getPosition().x;
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float y = cp1.getPosition().y - cp0.getPosition().y;
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float len = (float) Math.sqrt(x * x + y * y);
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if (len <= cai.getReactDistance()) {
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reactEntities.add(entities.get(j));
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}
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}
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AIListener listener = cai.getAIListener();
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if (listener != null) {
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listener.react(reactEntities, entities.get(i));
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}
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}
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}
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public void updateEntities(Engine engine) {
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entities = engine.getEntitiesFor(Family.getFor(CCombat.class));
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}
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}
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