public void SetMovementValues()
{
_flowFieldQuery = GetEntityQuery(typeof(FlowFieldData));
_flowFieldEntity = _flowFieldQuery.GetSingletonEntity();
_flowFieldData = EntityManager.GetComponentData <FlowFieldData>(_flowFieldEntity);
_destinationCellData = EntityManager.GetComponentData <DestinationCellData>(_flowFieldEntity);
_entityBuffer = EntityManager.GetBuffer <EntityBufferElement>(_flowFieldEntity);
_gridEntities = _entityBuffer.Reinterpret <Entity>();
if (_cellDataContainer.IsCreated)
{
_cellDataContainer.Dispose();
}
_cellDataContainer = new NativeArray <CellData>(_gridEntities.Length, Allocator.Persistent);
for (int i = 0; i < _entityBuffer.Length; i++)
{
_cellDataContainer[i] = GetComponent <CellData>(_entityBuffer[i]);
}
Entities.ForEach((ref EntityMovementData entityMovementData) =>
{
entityMovementData.destinationReached = false;
}).Run();
}
protected override void OnUpdate()
{
EntityCommandBuffer commandBuffer = _ecbSystem.CreateCommandBuffer();
Entities.ForEach((Entity entity, in NewFlowFieldData newFlowFieldData, in FlowFieldData flowFieldData) =>
{
commandBuffer.RemoveComponent <NewFlowFieldData>(entity);
DynamicBuffer <EntityBufferElement> buffer = newFlowFieldData.isExistingFlowField
? GetBuffer <EntityBufferElement>(entity)
: commandBuffer.AddBuffer <EntityBufferElement>(entity);
DynamicBuffer <Entity> entityBuffer = buffer.Reinterpret <Entity>();
float cellRadius = flowFieldData.cellRadius;
float cellDiameter = cellRadius * 2;
int2 gridSize = flowFieldData.gridSize;
for (int x = 0; x < gridSize.x; x++)
{
for (int y = 0; y < gridSize.y; y++)
{
float3 cellWorldPos = new float3(cellDiameter * x + cellRadius, 0, cellDiameter * y + cellRadius);
byte cellCost = CostFieldHelper.instance.EvaluateCost(cellWorldPos, cellRadius);
CellData newCellData = new CellData
{
worldPos = cellWorldPos,
gridIndex = new int2(x, y),
cost = cellCost,
bestCost = ushort.MaxValue,
bestDirection = int2.zero
};
Entity curCell;
if (newFlowFieldData.isExistingFlowField)
{
int flatIndex = FlowFieldHelper.ToFlatIndex(new int2(x, y), gridSize.y);
curCell = entityBuffer[flatIndex];
}
else
{
curCell = commandBuffer.CreateEntity(_cellArchetype);
entityBuffer.Add(curCell);
}
commandBuffer.SetComponent(curCell, newCellData);
}
}
int2 destinationIndex = FlowFieldHelper.GetCellIndexFromWorldPos(flowFieldData.clickedPos, gridSize, cellDiameter);
DestinationCellData newDestinationCellData = new DestinationCellData {
destinationIndex = destinationIndex
};
if (!newFlowFieldData.isExistingFlowField)
{
commandBuffer.AddComponent <DestinationCellData>(entity);
}
commandBuffer.SetComponent(entity, newDestinationCellData);
commandBuffer.AddComponent <CalculateFlowFieldTag>(entity);
}).Run();
