JobHandle ProcessViewEntities(bool mapRegenerated, DynamicBuffer <MapTiles> map, MapData mapData, JobHandle inputDeps)
{
// Process Entities with only a view and no memory
return(Entities
.WithReadOnly(map)
.WithChangeFilter <Position>()
.WithNone <TilesInMemory>()
.ForEach((ref DynamicBuffer <TilesInView> view, in Position pos, in ViewRange range) =>
{
if (view.Length != map.Length || mapRegenerated)
{
view.ResizeUninitialized(map.Length);
}
// Always reset view before rebuilding
for (int i = 0; i < view.Length; ++i)
{
view[i] = false;
}
var visibility = new VisibilityMap(
mapData.width,
mapData.height,
map.Reinterpret <TileType>().AsNativeArray(),
view.Reinterpret <bool>().AsNativeArray()
);
FOV.Compute(pos, range, visibility);
}).Schedule(inputDeps));
public static int PosToIndex(int2 p, MapData mapData) => p.y * mapData.width + p.x;
public void OnFrameBegin()
{
_mapEntity = _mapQuery.GetSingletonEntity();
_map = EntityManager.GetBuffer <MapTiles>(_mapEntity);
_mapData = EntityManager.GetComponentData <MapData>(_mapEntity);
}