private void NotifyOriginShift()
{
if (OnOriginShift != null)
{
OnOriginShift.Invoke(this, new FloatingOriginShiftEventArgs()
{
ShiftAmount = maxOriginPoint
});
}
}
public static void KeepOriginForPosition(Vector2 position)
{
Point pos = position.Settle();
//shift when appropriate
Point shiftDirection = Point.Zero;
if (pos.X > REGION_SIZE_IN_METERS)
{
shiftDirection = new Point(pos.X / REGION_SIZE_IN_METERS, 0);
}
else if (pos.X < -REGION_SIZE_IN_METERS)
{
shiftDirection = new Point(pos.X / REGION_SIZE_IN_METERS, 0);
}
// up to 100,000 from origin ok on nvidia 500 series... let's just shift every 10,000k then //todo
if (shiftDirection != Point.Zero) //FIXME origin shift atm is slow and naive
{
// get previous regions range
int prevAbsRegionsStart = currentOriginInRegions;
int prevAbsRegionsEnd = currentOriginInRegions + 4;
// store regions shift amount
currentOriginInRegions += shiftDirection.X;
// get current regions range
int curAbsRegionsStart = currentOriginInRegions;
int curAbsRegionsEnd = currentOriginInRegions + 4;
// cleanup regions outta range
for (var i = 0; i < chunks_.Length; i++)
{
Chunk chunk = chunks_[i];
int relRegionX = i >> REGION_LOG_SIZE_IN_CHUNKS;
//if chunk abs region is not in current bounds
if (chunk.absRegionX < curAbsRegionsStart || chunk.absRegionX >= curAbsRegionsEnd)
{
chunk.UnloadChunk(relRegionX);
}
}
// translate all entities
Vector2 shift = shiftDirection.ToVector2() * -REGION_SIZE_IN_METERS;
Entity.ShiftAllEntities(shift);
OnOriginShift?.Invoke(shift);
// mark new chunks for loading
for (var i = 0; i < chunks_.Length; i++)
{
int relRegionX = i >> REGION_LOG_SIZE_IN_CHUNKS;
int absRegionX = currentOriginInRegions + relRegionX;
Chunk chunk = chunks_[i];
chunk.SetRegionX(absRegionX);
//load new chunks
if (chunk.absRegionX < prevAbsRegionsStart || chunk.absRegionX >= prevAbsRegionsEnd)
{
chunk.MarkAsNew();
}
int relChunkX = i % REGION_SIZE_IN_CHUNKS;
DebugHelper.AddDebugText(absRegionX.ToString(), chunk.GetWorldCenter(relRegionX) - Vector2.UnitY * 8, Color.White);
DebugHelper.AddDebugText(relChunkX.ToString(), chunk.GetWorldCenter(relRegionX) - Vector2.UnitY * 12, Color.Lime);
DebugHelper.AddDebugText(chunk.absRegionX.ToString(), chunk.GetWorldCenter(relRegionX) - Vector2.UnitY * 18, Color.Yellow);
}
}
// load as appropriate TODO culling
for (var i = 0; i < chunks_.Length; i++)
{
chunks_[i].TryLoadChunk(i >> REGION_LOG_SIZE_IN_CHUNKS);
}
}
private void HandleOriginShift()
{
UpdateOrigin();
CenterPlayerToOrigin();
OnOriginShift?.Invoke();
}
