40 lines
1.4 KiB
C#
40 lines
1.4 KiB
C#
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using Unity.Burst;
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using Unity.Entities;
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using Unity.Transforms;
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using Unity.Mathematics;
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namespace HappyForest.Prototypen
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{
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[BurstCompile]
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public partial struct PilleWanderSystem : ISystem
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{
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[BurstCompile]
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public void OnCreate(ref SystemState state)
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{
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state.RequireForUpdate<PilleWanderData>();
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}
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[BurstCompile]
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public void OnUpdate(ref SystemState state)
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{
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float deltaTime = SystemAPI.Time.DeltaTime;
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// Ein EntityCommandBuffer wird benötigt, um Entities sicher zu zerstören,
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// während wir gerade über sie iterieren.
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var ecb = SystemAPI.GetSingleton<EndSimulationEntityCommandBufferSystem.Singleton>().CreateCommandBuffer(state.WorldUnmanaged);
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// Iteriere über alle Entities, die eine Position (LocalTransform) und unsere WanderData haben
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foreach (var (transform, wanderData, entity) in SystemAPI.Query<RefRW<LocalTransform>, RefRO<PilleWanderData>>().WithEntityAccess())
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{
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// 1. Bewegen (Aktuelle Position + Richtung * Geschwindigkeit * Zeit)
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transform.ValueRW.Position += wanderData.ValueRO.Direction * wanderData.ValueRO.Speed * deltaTime;
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// 2. Abgrund-Check (Runtergefallen?)
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if (transform.ValueRO.Position.y < -10f)
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{
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ecb.DestroyEntity(entity);
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}
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}
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}
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}
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}
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