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41 lines
1.1 KiB
C#
41 lines
1.1 KiB
C#
// Copyright (c) 2025-2026 GeWuYou
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// SPDX-License-Identifier: Apache-2.0
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using Arch.Core;
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using GFramework.Ecs.Arch.Components;
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namespace GFramework.Ecs.Arch.Systems;
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/// <summary>
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/// 移动系统 - 继承 ArchSystemAdapter
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/// 负责更新具有位置和速度组件的实体的位置
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/// </summary>
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public sealed class MovementSystem : ArchSystemAdapter<float>
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{
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private QueryDescription _query;
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/// <summary>
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/// Arch 系统初始化
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/// </summary>
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protected override void OnArchInitialize()
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{
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// 创建查询:查找所有同时拥有Position和Velocity组件的实体
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_query = new QueryDescription()
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.WithAll<Position, Velocity>();
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}
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/// <summary>
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/// 系统更新方法,每帧调用一次
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/// </summary>
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/// <param name="deltaTime">帧间隔时间</param>
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protected override void OnUpdate(in float deltaTime)
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{
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// 查询并更新所有符合条件的实体
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var f = deltaTime;
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World.Query(in _query, (ref Position pos, ref Velocity vel) =>
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{
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pos.X += vel.X * f;
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pos.Y += vel.Y * f;
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});
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}
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} |