public int Waypoint; // Current waypoint in the path
#endregion Fields
#region Constructors
public Entity( int index )
{
Index = index;
Transform = new InstanceTransformRef();
Type = EntityType.Civilian;
HalfSize = 1f;
AABB = new AABB();
NextPosition = Vector3.Zero;
NextAngle = 0f;
ListNode = null;
Direction = Vector3.Zero;
StateTime = 0;
StateDuration = 0;
Behavior = null;
Collision = 0;
Path = new List<Vector2>( 60 );
Waypoint = -1;
MoveSpeed = 1f;
Beacon = null;
BeaconVersion = 0;
}
public void Add( EntityListNode node )
{
#if DEBUG
if ( node.parent[cellType] != null )
throw new InvalidOperationException( "Node is already in a list." );
if ( node.prev[cellType] != null || node.next[cellType] != null )
throw new InvalidOperationException( "Node appears to belong to another list of the same type." );
#endif
node.parent[cellType] = this;
node.prev[cellType] = tail;
if ( head == null )
{
head = node;
tail = node;
}
else
{
tail.next[cellType] = node;
tail = node;
}
count++;
}
public void AddEntity( ref Entity entity )
{
Vector2 min = Vector2.Clamp( entity.AABB.Min, Min, Max );
Vector2 max = Vector2.Clamp( entity.AABB.Max, Min, Max );
// add the entity to all touching cells
float cellWidth = ( Max.X - Min.X ) / Cols;
int colMin = (int)( ( min.X - Min.X ) / cellWidth );
int colMax = (int)( ( max.X - Min.X ) / cellWidth );
float cellHeight = ( Max.Y - Min.Y ) / Rows;
int rowMin = (int)( ( min.Y - Min.Y ) / cellHeight );
int rowMax = (int)( ( max.Y - Min.Y ) / cellHeight );
// make sure the maxs don't go out of bounds
if ( colMax >= Cols )
colMax = colMin;
if ( rowMax >= Rows )
rowMax = rowMin;
EntityListNode node = new EntityListNode( entity.Index );
entity.ListNode = node;
for ( int r = rowMin; r <= rowMax; ++r )
{
for ( int c = colMin; c <= colMax; ++c )
{
cells[Cols * r + c].Entities.Add( node );
}
}
// box verts
boxLineVertCount += 8;
while ( boxLineVerts.Length < boxLineVertCount )
{
boxLineVerts = new VertexPositionColor[boxLineVerts.Length * 2];
for ( int i = 0; i < boxLineVerts.Length; ++i )
boxLineVerts[i].Color = boxLineColor;
}
}
internal void Remove( EntityListNode node )
{
if ( node == head )
head = node.next[cellType];
if ( node == tail )
tail = node.prev[cellType];
if ( node.prev[cellType] != null )
node.prev[cellType].next[cellType] = node.next[cellType];
if ( node.next[cellType] != null )
node.next[cellType].prev[cellType] = node.prev[cellType];
node.prev[cellType] = null;
node.next[cellType] = null;
node.parent[cellType] = null;
count--;
}
public EntityListNode Next( EntityListNode node )
{
return node.next[cellType];
}