Luis Gonzalez
102 lines
3.4 KiB
C#
102 lines
3.4 KiB
C#
using Unity.Burst;
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using Unity.Collections;
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using Unity.Entities;
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using Unity.Mathematics;
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using Unity.Transforms;
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using static Unity.Entities.SystemAPI;
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using Random = Unity.Mathematics.Random;
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/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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namespace Rukhanka.Samples
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{
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public struct SpawnPrefabComponent: IComponentData
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{
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public Entity prefabToSpawn;
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public float spawnRadius;
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}
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/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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public struct SpawnCommandComponent: IComponentData
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{
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public int spawnCount;
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public float spawnTime;
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public float3 spawnerPos;
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public bool boneVisualizationOn;
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public bool gpuAnimator;
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}
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/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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public struct NetworkedPrefab: IComponentData {}
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/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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[BurstCompile]
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[WorldSystemFilter(WorldSystemFilterFlags.LocalSimulation | WorldSystemFilterFlags.ClientSimulation)]
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public partial struct PrefabSpawnerSystem: ISystem
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{
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uint updateCounter;
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/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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[BurstCompile]
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public void OnUpdate(ref SystemState ss)
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{
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var ecbs = GetSingleton<EndSimulationEntityCommandBufferSystem.Singleton>();
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var ecb = ecbs.CreateCommandBuffer(ss.WorldUnmanaged);
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FastAnimatorParameter animSpeed = new FastAnimatorParameter("Crowd_AnimationSpeed");
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var t = SystemAPI.Time.ElapsedTime;
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foreach (var (p0, _, sc, e) in Query<RefRW<SpawnPrefabComponent>, RefRO<LocalTransform>, RefRO<SpawnCommandComponent>>()
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.WithNone<NetworkedPrefab>()
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.WithEntityAccess())
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{
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var spc = p0.ValueRO;
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var scc = sc.ValueRO;
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if (scc.spawnTime > t)
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continue;
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var instances = ss.EntityManager.Instantiate(spc.prefabToSpawn, sc.ValueRO.spawnCount, Allocator.Temp);
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var random = Random.CreateFromIndex(updateCounter++);
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foreach (var entity in instances)
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{
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var randomPos = random.NextFloat2() * 2 - 1;
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var position = new float3(randomPos.x, 0, randomPos.y) * spc.spawnRadius;
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var rot = quaternion.RotateY(random.NextFloat() * math.PI * 2);
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var transform = ss.EntityManager.GetComponentData<LocalTransform>(entity);
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transform.Position += position + scc.spawnerPos;
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transform.Rotation = rot;
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ss.EntityManager.SetComponentData(entity, transform);
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if (scc.boneVisualizationOn)
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ecb.AddComponent<BoneVisualizationComponent>(entity);
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else
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ecb.RemoveComponent<BoneVisualizationComponent>(entity);
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if (ss.EntityManager.HasComponent<GPUAnimationEngineTag>(entity))
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ss.EntityManager.SetComponentEnabled<GPUAnimationEngineTag>(entity, scc.gpuAnimator);
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if (HasComponent<AnimatorControllerParameterIndexTableComponent>(entity) && HasBuffer<AnimatorControllerParameterComponent>(entity))
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{
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var acpitc = GetComponent<AnimatorControllerParameterIndexTableComponent>(entity);
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var acpc = GetBuffer<AnimatorControllerParameterComponent>(entity);
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var apa = new AnimatorParametersAspect(acpc, acpitc);
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var randomSpeedVal = (random.NextFloat() * 2 - 1) * 0.5f + 1;
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if (apa.HasParameter(animSpeed))
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apa.SetParameterValue(animSpeed, randomSpeedVal);
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}
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ecb.RemoveComponent<SpawnCommandComponent>(e);
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}
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}
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}
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}
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}
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