Hi,
I try my best with DOTS and the Job System. But today I came to a Problem that I dont know what I do wrong.
What I want to do:
I have more then 1 Player and Many Many Units. I want to Calculate for the Units what target they should choose to Attack.
If the player gets near it should attack the player else just do nothing.
My Problem is this codeline:
sheepTarget[index] = new Target { target = player[i].Value };
Debug.Log("test" + player[i].Value);
Debug Log shows the right Vector.
But Target is not overritten. It just stays the same for every Sheep.
I’m no expert in C# and refs. I know what i want to do but i cant tell the code to do it 
Btw. How can i just save a Ref to a Vector not the Vector itself in a struct?
Here is my Job:
using Unity.Burst;
using Unity.Collections;
using Unity.Entities;
using Unity.Jobs;
using Unity.Mathematics;
using Unity.Transforms;
using UnityEngine;
using UnityEngine.Jobs;
namespace DefenceGame {
public class AttackTargetSystem : JobComponentSystem {
EntityQuery m_Group;
EntityQuery m2_Group;
protected override void OnCreate() {
var query1 = new EntityQueryDesc {
All = new ComponentType[] {ComponentType.ReadOnly<Translation>(),
ComponentType.ReadOnly<Sheep>(),
ComponentType.ReadOnly<Target>()}
};
var query2 = new EntityQueryDesc {
All = new ComponentType[]{ ComponentType.ReadOnly<Translation>(),
ComponentType.ReadOnly<Player>()}
};
m_Group = GetEntityQuery(query1);
m2_Group = GetEntityQuery(query2);
}
[BurstCompile]
struct FindTargetJob : IJobParallelFor {
[ReadOnly]
public NativeArray<Translation> sheep;
public NativeArray<Target> sheepTarget;
[ReadOnly]
public NativeArray<Translation> player;
[ReadOnly]
public Vector3 baseVector;
public void Execute(int index) {
for (int i = 0; i < player.Length; i++) {
if (Vector3.Distance(player[i].Value, sheep[index].Value) < 5f)
if (Vector3.Distance(sheep[index].Value, baseVector) > Vector3.Distance(player[i].Value, sheep[index].Value)) {
sheepTarget[index] = new Target { target = player[i].Value };
Debug.Log("test" + player[i].Value);
}
}
}
}
protected override JobHandle OnUpdate(JobHandle inputDeps) {
var sheepsTranslation = m_Group.ToComponentDataArray<Translation>(Allocator.TempJob);
var sheepsTarget = m_Group.ToComponentDataArray<Target>(Allocator.TempJob);
var sheepsBase = m_Group.ToComponentDataArray<Sheep>(Allocator.TempJob);
var player = m2_Group.ToComponentDataArray<Translation>(Allocator.TempJob);
var job = new FindTargetJob() { sheep = sheepsTranslation, sheepTarget = sheepsTarget, player = player, baseVector = sheepsBase[0].baseToAttack };
JobHandle handle = job.Schedule(sheepsTranslation.Length, 64);
handle.Complete();
sheepsTranslation.Dispose();
sheepsTarget.Dispose();
sheepsBase.Dispose();
player.Dispose();
return handle;
}
}
}
using Unity.Entities;
using UnityEngine;
namespace DefenceGame {
public struct Target : IComponentData {
public Vector3 target;
}
}
using Unity.Entities;
using UnityEngine;
namespace DefenceGame {
public struct Sheep : IComponentData {
public float randomNumber;
public int entityIndex;
public Vector3 baseToAttack;
}
}
using Unity.Entities;
using UnityEngine;
namespace DefenceGame {
public struct Player : IComponentData {
}
}