public override bool CanTarget(GridOccupant target, GridOccupant wielder, Grid.Grid grid)
{
var direction = target.Position - wielder.Position;
if (!direction.IsCardinal() || direction.CardinalMagnitude() > 1)
{
return(false);
}
var node = new Grid.Grid.Node();
if (grid.TryGetNodeAt(wielder.Position, ref node))
{
return(node.Occupants.Any(it => TargetTypes.Contains(it.Type)));
}
return(false);
}
public virtual List <Grid.Grid.Node> FindEffectedNodes(GridOccupant wielder, Vector2Int direction, Grid.Grid grid)
{
var occupants = FindTargets(wielder, direction, grid);
var nodes = new List <Grid.Grid.Node>();
foreach (var occupant in occupants)
{
if (nodes.FindIndex(it => it.Position == occupant.Position) > -1)
{
var n = new Grid.Grid.Node();
if (grid.TryGetNodeAt(occupant.Position, ref n))
{
nodes.Add(n);
}
}
}
return(nodes);
}
// public override Grid.Grid.Node[] FindTargets(Grid.Grid.Node wielder, Grid.Grid grid)
// {
// var neighbours = grid.GetNeighbours(wielder);
//
// // todo(chris) consider optimising as this will be used by every mellee enemy on the grid
// return neighbours.Where(node => node.Occupants.Any(it => it.Tags.Intersect(TargetTypes).Any())).ToArray();
// }
// todo(chris) shouldnt this only find targets in direction??
public override GridOccupant[] FindTargets(GridOccupant wielder, Vector2Int direction, Grid.Grid grid)
{
var node = new Grid.Grid.Node();
if (grid.TryGetNodeAt(wielder.Position, ref node))
{
var neighbours = grid.GetNeighbours(node);
var targets = new List <GridOccupant>();
foreach (var neighbour in neighbours)
{
var validOccupants = neighbour.Occupants.Where(it => TargetTypes.Contains(it.Type));
targets.AddRange(validOccupants);
}
return(targets.ToArray());
}
return(null);
}
public PathDetails CalculatePath(GridOccupant wielder, Vector2Int direction, Grid.Grid grid)
{
PathDetails path = new PathDetails
{
Travelled = new List <Grid.Grid.Node>(),
IsLastNodeTarget = false
};
var normalised = direction.CardinalNormalise();
var magnitude = projectile.Range;
var node = new Grid.Grid.Node();
for (int i = 1; i <= magnitude; i++)
{
if (grid.TryGetNodeAt(wielder.Position + i * normalised, ref node))
{
path.Travelled.Add(node);
// if we have hit something that has a type then weve eiher hit something we cant move though
// or weve hit our target
if (node.Occupants.Any(it => it.Type != null))
{
path.IsLastNodeTarget = node.Occupants.Any(it => it.Type != null && TargetTypes.Contains(it.Type));
break;
}
// todo(chris) add back in when we implement penetration
// else
// {
// var targetOccupants = node.Occupants.Where(it => TargetTypes.Contains(it.Type));
//
// var gridOccupants = targetOccupants as GridOccupant[] ?? targetOccupants.ToArray();
//
// // occupant isnt a target so cant go through
// if (gridOccupants.Length == 0)
// {
// break;
// }
//
// path.Hits.Add(node);
//
// var penetrating = gridOccupants.Where(occupant => projectile.PenitrationTags.Contains(occupant.Type));
//
// var penetratingArray = penetrating as GridOccupant[] ?? penetrating.ToArray();
//
// // cant penetrate target to this will be as far as we go
// if (penetratingArray.Length == 0)
// {
// break;
// }
//
// // if we cant penetrate all then we are done
// if (remainingDepth <= penetratingArray.Length)
// {
// break;
// }
//
// // continue;
// }
}
else
{
break;
}
}
if (path.IsLastNodeTarget && path.Travelled.Count == 0)
{
path = new PathDetails
{
Travelled = new List <Grid.Grid.Node>(),
IsLastNodeTarget = false
};
}
else
{
path.Travelled.RemoveAt(0);
}
return(path);
}
