public override void UpdateSystem()
{
Dependency = JobHandle.CombineDependencies(Dependency, m_raycastSystem.RaycastSystemDependency);
if (m_inputManagementSystem.InputData.inputActions.spawn)
{
NativeArray <RaycastResult> raycastResult = m_raycastSystem.RaycastResult;
NativeQueue <SpawnCommand> spawnQueueLocal = spawnQueue;
NativeArray2D <MapNode> grid = m_gridManager.Grid;
Dependency = Entities.WithReadOnly(grid).WithReadOnly(raycastResult).ForEach((ref RuntimePrefabData runtimePrefabData) =>
{
if (raycastResult[0].raycastTargetType == RaycastTargetType.Ground)
{
Rotation rotation = GetComponent <Rotation>(runtimePrefabData.aiDrone);
Translation translation = new Translation {
Value = raycastResult[0].hitPosition + new float3(0, 1, 0)
};
LocalToWorld localToWorld = new LocalToWorld {
Value = new float4x4(rotation.Value, translation.Value)
};
PathFinding pathFinding = new PathFinding {
currentNode = PathFindingSystem.FindNearestNode(translation.Value, grid)
};
SpawnCommands.SpawnHarvester(spawnQueueLocal, runtimePrefabData.aiDrone, translation, localToWorld, pathFinding);
}
}).Schedule(Dependency);
spawnQueueDependencies = Dependency;
}
}
/// <summary>
/// Iterates through the children of the current node to the target to retrieve the path.
/// </summary>
private unsafe static void ConstructPath(NativeArray2D <MapNode> gridCopy, ref PathFinding pathfinding, ref DynamicBuffer <PathNode> path)
{
MapNode node = gridCopy[pathfinding.currentNode.x, pathfinding.currentNode.y];
while (node.child != null)
{
path.Add(new PathNode {
position = node.child->position, gridPosition = node.child->gridPosition
});
node = *node.child;
}
}
public static void SpawnHarvester(NativeQueue <SpawnCommand> spawnQueue, Entity entity, Translation translation, LocalToWorld localToWorld, PathFinding pathFinding)
{
SpawnCommand spawnCommand = new SpawnCommand();
spawnCommand.spawnCommandType = SpawnCommandType.Harvester;
spawnCommand.entity = entity;
HarvesterSpawnData *spawnData = spawnCommand.CommandData <HarvesterSpawnData>();
spawnData->translation = translation;
spawnData->localToWorld = localToWorld;
spawnData->pathFinding = pathFinding;
spawnQueue.Enqueue(spawnCommand);
}
private static unsafe void CalculateGridH(NativeArray2D <MapNode> gridCopy, ref PathFinding kPathfinding)
{
//Fill in h values for grid.
for (int i = 0; i < gridCopy.Length0; ++i)
{
for (int j = 0; j < gridCopy.Length1; ++j)
{
MapNode node = gridCopy[i, j];
node.h = math.distancesq(gridCopy[i, j].position, gridCopy[kPathfinding.targetNode.x, kPathfinding.targetNode.y].position);
node.parent = null;
node.child = null;
node.state = NodeState.Untested;
gridCopy[i, j] = node;
}
}
}
public void Convert(Entity entity, EntityManager dstManager, GameObjectConversionSystem conversionSystem)
{
PathFinding pathFinding = new PathFinding();
dstManager.AddComponentData(entity, pathFinding);
}
public void Execute(ArchetypeChunk chunk, int chunkIndex, int firstEntityIndex)
{
//Writeable.
NativeArray <PathFinding> pathfindingArray = chunk.GetNativeArray(pathFindingComponentHandle);
BufferAccessor <PathNode> pathNodeBufferAccessor = chunk.GetBufferAccessor(pathNodeBufferHandle);
//Read Only.
NativeArray <CurrentTarget> currentTargetArray = chunk.GetNativeArray(currentTargetComponentHandle);
NativeArray <Translation> translationArray = chunk.GetNativeArray(translationComponentHandle);
NativeArray <Entity> entities = chunk.GetNativeArray(entityType);
//Create a copy of the grid for this thread and chunk.
NativeArray2D <MapNode> gridCopy = new NativeArray2D <MapNode>(gridRef.Length0, gridRef.Length1, Allocator.Temp, NativeArrayOptions.UninitializedMemory);
UnsafeUtility.MemCpy(gridCopy.GetUnsafePtr(), gridRef.GetUnsafePtrReadOnly(), gridRef.Length * sizeof(MapNode));
for (int indexInChunk = 0; indexInChunk < chunk.Count; ++indexInChunk)
{
//Writable.
PathFinding pathfinding = pathfindingArray[indexInChunk];
DynamicBuffer <PathNode> path = pathNodeBufferAccessor[indexInChunk];
//Read Only.
Entity entity = entities[indexInChunk];
CurrentTarget currentTarget = currentTargetArray[indexInChunk];
Translation translation = translationArray[indexInChunk];
bool hasPath = chunk.Has(hasPathComponentHandle);
if (!pathfinding.requestedPath)
{
//We only want to remove our has path component if we didn't request a new one, to avoid re-adding later in the job if we find a new path.
if (pathfinding.completedPath)
{
pathfinding.completedPath = false;
ecb.RemoveComponent <HasPathTag>(chunkIndex, entity);
pathfindingArray[indexInChunk] = pathfinding;
}
continue;
}
path.Clear();
pathfinding.currentIndexOnPath = 0;
pathfinding.completedPath = false;
pathfinding.requestedPath = false;
//Calculate the closest nodes to us and our target position.
//Don't search for path if we're already at our target node.
pathfinding.currentNode = FindNearestNode(translation.Value, gridCopy);
pathfinding.targetNode = FindNearestNode(currentTarget.targetData.targetPos, gridCopy);
if (pathfinding.targetNode.Equals(pathfinding.currentNode))
{
pathfindingArray[indexInChunk] = pathfinding;
continue;
}
CalculateGridH(gridCopy, ref pathfinding);
bool pathfound = SearchForPath(pathfinding.currentNode, pathfinding.targetNode, gridCopy);
if (pathfound)
{
ConstructPath(gridCopy, ref pathfinding, ref path);
if (!hasPath)
{
ecb.AddComponent <HasPathTag>(chunkIndex, entity);
}
}
else if (hasPath)
{
ecb.RemoveComponent <HasPathTag>(chunkIndex, entity);
}
pathfindingArray[indexInChunk] = pathfinding;
}
gridCopy.Dispose();
}