public static VoxelInfo GetStrongerVoxel(ref VoxelInfo a, ref VoxelInfo b)
{
return a;
}
/// <summary>
/// The core of the simulation. This function applies all rules to all
/// living voxels.
/// </summary>
/// <returns>Every change which have to be made to apply the latest changes.</returns>
private ConcurrentDictionary<Int32, VoxelInfo> SimulateAsync()
{
// There is just one map but nobody should write before all have
// seen the current state -> collect all results first.
ConcurrentDictionary<Int32, VoxelInfo> results = new ConcurrentDictionary<Int32, VoxelInfo>();
Parallel.ForEach(_livingVoxels, currentVoxel =>
//foreach( KeyValuePair<Int32, LivingVoxel> currentVoxel in _livingVoxels )
{
++currentVoxel.Value.Ticks;
// Create a local window for the rule algorithms
VoxelInfo[, ,] localFrame = new VoxelInfo[3, 3, 3];
IterateNeighbours((x, y, z) =>
{
Int32 pos = _map.EncodePosition(currentVoxel.Value.X + x - 1, currentVoxel.Value.Y + y - 1, currentVoxel.Value.Z + z - 1);
VoxelType voxel = _map.Get(pos);
// Living?
if (_map.IsLiving(pos))
{
// Yes: query more information from the dictinary
LivingVoxel voxelInfo = _livingVoxels[pos];
localFrame[z, y, x] = new VoxelInfo(voxel, true, voxelInfo.Generation, voxelInfo.Resources, voxelInfo.Ticks, voxelInfo.From);
}
else
{
// No uses directly
localFrame[z, y, x] = new VoxelInfo((VoxelType)voxel);
}
});
// Apply the rule for currentVoxel
VoxelInfo[, ,] ruleResult = TypeInformation.GetRule(localFrame[1, 1, 1].Type).ApplyRule(localFrame);
if (ruleResult != null)
{
currentVoxel.Value.Ticks = 0;
// Add changes to the change collection
IterateNeighbours((x, y, z) =>
{
if (ruleResult[z, y, x] != null && _map.IsInside(currentVoxel.Value.X + x - 1, currentVoxel.Value.Y + y - 1, currentVoxel.Value.Z + z - 1))
{
Int32 positionCode = _map.EncodePosition(currentVoxel.Value.X + x - 1, currentVoxel.Value.Y + y - 1, currentVoxel.Value.Z + z - 1);
// Two rules tried to grow at the same location. Use decision function
results.AddOrUpdate(positionCode, ruleResult[z, y, x], (key, old) => GamePlayUtils.GetStrongerVoxel(ref old, ref ruleResult[z, y, x]));
}
});
}
});
return results;
}
