public static bool TryGetNextQuadrantInRadius(ref GuadrantIterator iterator)
{
if (iterator.currentIterateRadius * QuadrantSystem.quadrantSize > iterator.radius + 2 * QuadrantSystem.quadrantSize)
{
return(false);
}
iterator.indexHor++;
if (iterator.indexVer > iterator.currentIterateRadius)
{
iterator.currentIterateRadius++;
iterator.indexVer = -iterator.currentIterateRadius;
iterator.indexHor = 0;
}
else if (iterator.indexHor > iterator.currentIterateRadius - math.abs(iterator.indexVer))
{
iterator.indexVer++;
iterator.indexHor = -(iterator.currentIterateRadius - math.abs(iterator.indexVer));
}
iterator.quadrant = GetQuadrant(
new float3()
{
x = iterator.position.x + iterator.indexHor * QuadrantSystem.quadrantSize,
y = iterator.position.y + iterator.indexVer * QuadrantSystem.quadrantSize,
z = iterator.position.z
}
);
return(true);
}
public static bool TryGetFirstQuadrantInRadius(float3 position, float radius, out GuadrantIterator iterator)
{
iterator = new GuadrantIterator()
{
position = position,
radius = radius,
quadrant = GetQuadrant(position),
currentIterateRadius = 0,
indexHor = 0,
indexVer = 0
};
return(true);
}