//---------------------------------------------------------------------
public void entityMove(Entity entity, EbVector3 pos_world)
{
EbVector2 pos_grid = _world2gird(pos_world);
EbGridRegion region = mGridRegions[(int)pos_grid.x, (int)pos_grid.y];
if (region == null)
{
return;
}
EbGridRegion region_last = entity.getUserData <EbGridRegion>();
if (region.Equals(region_last))
{
region.entityMove(entity);
}
else
{
if (region_last != null)
{
region_last.entityLeaveRegion(entity);
}
region.entityEnterRegion(entity);
}
}
//---------------------------------------------------------------------
public List <EbVector3> navigate(EbVector3 from_world, EbVector3 to_world, uint max_step)
{
EbVector2 from_grid = _world2gird(from_world);
EbVector2 to_grid = _world2gird(to_world);
List <EbVector3> route_points = new List <EbVector3>();
if (_isInGrid(from_grid) && _isInGrid(to_grid))
{
if (mPixelNav.search((int)from_grid.x, (int)from_grid.y, (int)to_grid.x, (int)to_grid.y, max_step))
{
for (int i = 1; i < mPixelNav.Route.Count - 1; ++i)
{
route_points.Add(_grid2world(mPixelNav.Route[i]));
}
route_points.Add(to_world);
}
else
{
for (int i = 1; i < mPixelNav.Route.Count; ++i)
{
route_points.Add(_grid2world(mPixelNav.Route[i]));
}
}
}
return(route_points);
}
//---------------------------------------------------------------------
EbVector3 _grid2world(EbVector2 pos_grid)
{
EbVector3 v = new EbVector3(pos_grid.x, 0, pos_grid.y);
v.x = (v.x / (float)WidthGrid) * WidthWorld;
v.z = (v.z / (float)HeightGrid) * HeightWorld;
v.x += XMinWorld;
v.z = ZMinWorld - v.z;
return(v);
}
//---------------------------------------------------------------------
EbVector2 _world2gird(EbVector3 pos_world)
{
EbVector2 v = new EbVector2(pos_world.x, pos_world.z);
v.x -= XMinWorld;
v.y = ZMinWorld - v.y;
v.x = (v.x / WidthWorld) * (float)WidthGrid;
v.y = (v.y / HeightWorld) * (float)HeightGrid;
return(v);
}
//---------------------------------------------------------------------
public void entityLeaveRegion(Entity entity, EbVector3 pos_world)
{
EbVector2 pos_grid = _world2gird(pos_world);
EbGridRegion region = mGridRegions[(int)pos_grid.x, (int)pos_grid.y];
if (region == null)
{
return;
}
region.entityLeaveRegion(entity);
}
//---------------------------------------------------------------------
public HashSet <EbGridRegion> getGridRegions(EbVector3 min_world, EbVector3 max_world)
{
EbVector2 min_gird = _world2gird(min_world);
EbVector2 max_gird = _world2gird(max_world);
HashSet <EbGridRegion> regions = new HashSet <EbGridRegion>();
for (int h = (int)min_gird.y; h <= (int)max_gird.y; h++)
{
for (int w = (int)min_gird.x; w < (int)max_gird.x; w++)
{
regions.Add(mGridRegions[w, h]);
}
}
return(regions);
}
//---------------------------------------------------------------------
bool _isInGrid(EbVector2 pos_grid)
{
return((0 <= pos_grid.x && pos_grid.x < mPixelNav.SizeX) &&
(0 <= pos_grid.y && pos_grid.y < mPixelNav.SizeY));
}
