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package universalelectricity.prefab.vector;
import java.util.ArrayList;
import java.util.List;
import net.minecraft.entity.Entity;
import net.minecraft.util.AxisAlignedBB;
import net.minecraft.world.World;
import universalelectricity.core.vector.Vector3;
/**
* A cubical region class.
*
* @author Calclavia
*/
public class Region3
{
public Vector3 min;
public Vector3 max;
public Region3()
{
this(new Vector3(), new Vector3());
}
public Region3(Vector3 min, Vector3 max)
{
this.min = min;
this.max = max;
}
public Region3(AxisAlignedBB aabb)
{
this.min = new Vector3(aabb.minX, aabb.minY, aabb.minZ);
this.max = new Vector3(aabb.maxX, aabb.maxY, aabb.maxZ);
}
public AxisAlignedBB toAABB()
{
return AxisAlignedBB.getBoundingBox(this.min.x, this.min.y, this.min.z, this.max.x, this.max.y, this.max.z);
}
public Region2 toRegion2()
{
return new Region2(this.min.toVector2(), this.max.toVector2());
}
/**
* Checks if a point is located inside a region
*/
public boolean isIn(Vector3 point)
{
return (point.x > this.min.x && point.x < this.max.x) && (point.y > this.min.y && point.y < this.max.y) && (point.z > this.min.z && point.z < this.max.z);
}
/**
* Returns whether the given region intersects with this one.
*/
public boolean isIn(Region3 region)
{
return region.max.x > this.min.x && region.min.x < this.max.x ? (region.max.y > this.min.y && region.min.y < this.max.y ? region.max.z > this.min.z && region.min.z < this.max.z : false) : false;
}
public void expand(Vector3 difference)
{
this.min.subtract(difference);
this.max.add(difference);
}
/**
* @return List of vectors within this region.
*/
public List<Vector3> getVectors()
{
List<Vector3> vectors = new ArrayList<Vector3>();
for (int x = this.min.intX(); x < this.max.intX(); x++)
{
for (int y = this.min.intY(); x < this.max.intY(); y++)
{
for (int z = this.min.intZ(); x < this.max.intZ(); z++)
{
vectors.add(new Vector3(x, y, z));
}
}
}
return vectors;
}
public List<Vector3> getVectors(Vector3 center, int radius)
{
List<Vector3> vectors = new ArrayList<Vector3>();
for (int x = this.min.intX(); x < this.max.intX(); x++)
{
for (int y = this.min.intY(); x < this.max.intY(); y++)
{
for (int z = this.min.intZ(); x < this.max.intZ(); z++)
{
Vector3 vector3 = new Vector3(x, y, z);
if (center.distanceTo(vector3) <= radius)
{
vectors.add(vector3);
}
}
}
}
return vectors;
}
/**
* Returns all entities in this region.
*/
public List<Entity> getEntities(World world, Class<? extends Entity> entityClass)
{
return world.getEntitiesWithinAABB(entityClass, this.toAABB());
}
public List<Entity> getEntitiesExlude(World world, Entity entity)
{
return world.getEntitiesWithinAABBExcludingEntity(entity, this.toAABB());
}
public List<Entity> getEntities(World world)
{
return this.getEntities(world, Entity.class);
}
}