50 lines
1.5 KiB
Java
50 lines
1.5 KiB
Java
package com.zombie.game.systems;
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import com.zombie.game.ecs.ECSWorld;
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import com.zombie.game.ecs.System;
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import com.zombie.game.ecs.components.*;
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import java.util.*;
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/**
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* 燃烧区域系统
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*
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* 处理燃烧瓶留下的火焰区域：持续伤害 + 生命周期。
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*/
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public class FireZoneSystem implements System {
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@Override
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public void update(float dt, ECSWorld world) {
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List<Integer> toRemove = new ArrayList<>();
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for (int entityId : world.getFireZones()) {
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FireZone fz = world.getFireZonesData().get(entityId);
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Position fzPos = world.getPositions().get(entityId);
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if (fz == null || fzPos == null) continue;
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fz.update(dt);
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// 对范围内的僵尸造成持续伤害
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for (int zombieId : world.getZombies()) {
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Health zombieHealth = world.getHealths().get(zombieId);
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Position zombiePos = world.getPositions().get(zombieId);
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if (zombieHealth == null || !zombieHealth.isAlive() || zombiePos == null) continue;
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float dist = fzPos.distanceTo(zombiePos.getX(), zombiePos.getY());
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if (dist < fz.getRadius()) {
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zombieHealth.takeDamage(fz.getDamagePerTick());
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}
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}
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if (fz.isExpired()) {
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toRemove.add(entityId);
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}
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}
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for (int id : toRemove) {
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world.getFireZones().remove(id);
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world.destroyEntity(id);
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}
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}
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}
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