internal override bool Enter()
{
moveTimer = Owner.WalkSpeed;
walkDistance = Owner.WalkSpeed;
curNodeIdx = -1;
Path = Owner.CurrentMap.CalcPath(Owner.TileX, Owner.TileY, targetTileX, targetTileY);
startPosX = Owner.X;
startPosY = Owner.Y;
if (Path != null)
{
curNodeIdx = 0;
IMapPathNode initialNode = Path[curNodeIdx++];
if (initialNode == null)
return false;
targetPosX = initialNode.X;
targetPosY = initialNode.Y;
if (Owner is Unit)
{
Unit unit = (Unit)Owner;
unit.Sprite.SetCurrentAnimationByName("Walk");
unit.Orientation = Unit.OrientationFromDiff((targetPosX - startPosX), (targetPosY - startPosY));
}
}
else
{
return false;
}
return true;
}
internal StateAttackMove(Entity Owner, int X, int Y)
: base(Owner)
{
Path = null;
TargetPath = null;
destX = X;
destY = Y;
bUpdatePath = true;
}
internal StateAttackMove(Entity Owner, int X, int Y)
: base(Owner)
{
Path = null;
TargetPath = null;
destX = X;
destY = Y;
bUpdatePath = true;
}
internal StateAttack(Entity Owner, Entity Target)
: base(Owner)
{
if (Target == null)
throw new ArgumentNullException("Target");
Owner.CurrentTarget = Target;
Path = null;
}
internal StateAttack(Entity Owner, Entity Target)
: base(Owner)
{
if (Target == null)
{
throw new ArgumentNullException("Target");
}
Owner.CurrentTarget = Target;
Path = null;
}
internal override void Update(GameTime gameTime)
{
moveTimer -= gameTime.ElapsedGameTime.TotalSeconds;
if (moveTimer > 0)
{
return;
}
moveTimer = 1.0f;
this.Owner.UpdateHateList();
HateListEntry entry = this.Owner.HateList.GetHighestHateListEntry();
if (entry.Target == null)
{
Log.AI(this.Owner?.ToString(), "No enemy ... moving!");
if (bUpdatePath)
{
Path = Owner.CurrentMap.CalcPath(Owner.TileX, Owner.TileY, destX, destY);
if (Path != null)
{
curNodeIdx = 0;
bUpdatePath = false;
}
}
if (curNodeIdx == -1 || Path == null)
{
return;
}
if (curNodeIdx >= Path.Count)
{
this.Owner.Idle();
return;
}
IMapPathNode node = Path[curNodeIdx++];
// TODO!!! Move, not Set
Owner.SetPosition(node.X, node.Y);
return;
}
this.Owner.CurrentTarget = entry.Target;
Log.AI(this.Owner?.ToString(), "Enemy spotted! Attacking " + entry.Target.Name + entry.Target.UniqueID);
bUpdatePath = true;
Path = null;
MoveOrAttack(entry.Target);
}
internal override bool Enter()
{
moveTimer = 1.0f;
curNodeIdx = -1;
Path = Owner.CurrentMap.CalcPath(Owner.TileX, Owner.TileY, destX, destY);
if (Path == null)
return false;
curNodeIdx = 0;
bUpdatePath = false;
return true;
}
private void MoveOrAttack(Entity ent)
{
float offx = ent.X - this.Owner.X;
float offy = ent.Y - this.Owner.Y;
double sqr_dist = (offx * offx + offy * offy);
double sqr_meleerange = ent.AttackRange * ent.AttackRange;
if (sqr_dist < sqr_meleerange)
{
// Target is in range -> Perform an attack
if (this.Owner.PerformAttack(ent))
{
if (this.Owner is Unit)
{
Unit unit = (Unit)this.Owner;
unit.Orientation = Unit.OrientationFromDiff(offx, offy);
unit.Sprite.CurrentAnimation.Reset();
}
}
}
else
{
// Target is out of range -> Move towards it
// If no path has been calculated yet or if the target has moved, calculate new path
if (Path == null || ent.TileX != targetX || ent.TileY != targetY)
{
targetX = ent.TileX;
targetY = ent.TileY;
Path = Owner.CurrentMap.CalcPath(Owner.TileX, Owner.TileY, targetX, targetY);
if (Path == null)
{
return;
}
curNodeIdx = 0;
}
if (curNodeIdx < Path.Count)
{
IMapPathNode node = Path[curNodeIdx++];
// TODO!!! Move, not Set
Owner.SetPosition(node.X, node.Y);
}
else
{
Log.Error("Error calculating path");
}
}
}
internal override void Update(GameTime gameTime)
{
moveTimer -= gameTime.ElapsedGameTime.TotalSeconds;
if (moveTimer > 0)
return;
moveTimer = 1.0f;
this.Owner.UpdateHateList();
HateListEntry entry = this.Owner.HateList.GetHighestHateListEntry();
if (entry.Target == null)
{
Log.AI(this.Owner, "No enemy ... moving!");
if (bUpdatePath)
{
Path = Owner.CurrentMap.CalcPath(Owner.TileX, Owner.TileY, destX, destY);
if (Path != null)
{
curNodeIdx = 0;
bUpdatePath = false;
}
}
if (curNodeIdx == -1 || Path == null)
return;
if (curNodeIdx >= Path.Count)
{
this.Owner.Idle();
return;
}
IMapPathNode node = Path[curNodeIdx++];
// TODO!!! Move, not Set
Owner.SetPosition (node.X, node.Y);
return;
}
this.Owner.CurrentTarget = entry.Target;
Log.AI(this.Owner, "Enemy spotted! Attacking " + entry.Target.Name + entry.Target.UniqueID);
bUpdatePath = true;
Path = null;
MoveOrAttack(entry.Target);
}
internal override bool Enter()
{
moveTimer = 1.0f;
curNodeIdx = -1;
Path = Owner.CurrentMap.CalcPath(Owner.TileX, Owner.TileY, destX, destY);
if (Path == null)
{
return(false);
}
curNodeIdx = 0;
bUpdatePath = false;
return(true);
}
private void MoveOrAttack(Entity ent)
{
float offx = this.Owner.X - ent.X;
float offy = this.Owner.Y - ent.Y;
double sqr_dist = (offx * offx + offy * offy);
double sqr_meleerange = ent.AttackRange * ent.AttackRange;
if (sqr_dist < sqr_meleerange)
{
if (this.Owner.CanAttack && ent.ShouldBeAttacked)
{
// Target is in range -> Perform an attack
this.Owner.PerformAttack(ent);
}
}
else
{
// Target is out of range -> Move towards it
Log.AI(this.Owner?.ToString(), "Target is out of range ... moving towards it!");
// If no path has been calculated yet or if the target has moved, calculate new path
if (TargetPath == null || ent.X != targetX || ent.Y != targetY)
{
targetX = ent.TileX;
targetY = ent.TileY;
TargetPath = Owner.CurrentMap.CalcPath(Owner.TileX, Owner.TileY, targetX, targetY);
if (TargetPath == null)
{
return;
}
curNodeIdx = 0;
}
IMapPathNode node = TargetPath[curNodeIdx++];
// TODO!!! Move, not Set
Owner.SetPosition(node.X, node.Y);
}
}
internal override bool Enter()
{
moveTimer = Owner.WalkSpeed;
walkDistance = Owner.WalkSpeed;
curNodeIdx = -1;
Path = Owner.CurrentMap.CalcPath(Owner.TileX, Owner.TileY, targetTileX, targetTileY);
startPosX = Owner.X;
startPosY = Owner.Y;
if (Path != null)
{
curNodeIdx = 0;
IMapPathNode initialNode = Path[curNodeIdx++];
if (initialNode == null)
{
return(false);
}
targetPosX = initialNode.X;
targetPosY = initialNode.Y;
if (Owner is Unit)
{
Unit unit = (Unit)Owner;
unit.Sprite.SetCurrentAnimationByName("Walk");
unit.Orientation = Unit.OrientationFromDiff((targetPosX - startPosX), (targetPosY - startPosY));
}
}
else
{
return(false);
}
return(true);
}
internal MapPath CalcPath(int startX, int startY, int endX, int endY)
{
Performance.Push("Calculate path from " + startX + "," + startY + " to " + endX + "," + endY);
try
{
Log.Status("Map: Calculating path from " + startX + "," +
startY + " to " + endX + "," + endY + "...");
MapPath path = Pathfinder.FindPath(startX, startY, endX, endY);
if (path != null)
{
Log.Status("... success (" + path.Count + " Nodes)!");
return(path);
}
Log.Status("... failed!");
return(null);
}
finally
{
Performance.Pop();
}
}
private void MoveOrAttack(Entity ent)
{
float offx = this.Owner.X - ent.X;
float offy = this.Owner.Y - ent.Y;
double sqr_dist = (offx * offx + offy * offy);
double sqr_meleerange = ent.AttackRange * ent.AttackRange;
if (sqr_dist < sqr_meleerange)
{
if (this.Owner.CanAttack && ent.ShouldBeAttacked)
{
// Target is in range -> Perform an attack
this.Owner.PerformAttack(ent);
}
}
else
{
// Target is out of range -> Move towards it
Log.AI(this.Owner, "Target is out of range ... moving towards it!");
// If no path has been calculated yet or if the target has moved, calculate new path
if (TargetPath == null || ent.X != targetX || ent.Y != targetY)
{
targetX = ent.TileX;
targetY = ent.TileY;
TargetPath = Owner.CurrentMap.CalcPath(Owner.TileX, Owner.TileY, targetX, targetY);
if (TargetPath == null)
return;
curNodeIdx = 0;
}
IMapPathNode node = TargetPath[curNodeIdx++];
// TODO!!! Move, not Set
Owner.SetPosition (node.X, node.Y);
}
}
private void MoveOrAttack(Entity ent)
{
float offx = ent.X - this.Owner.X;
float offy = ent.Y - this.Owner.Y;
double sqr_dist = (offx * offx + offy * offy);
double sqr_meleerange = ent.AttackRange * ent.AttackRange;
if (sqr_dist < sqr_meleerange)
{
// Target is in range -> Perform an attack
if (this.Owner.PerformAttack (ent))
{
if (this.Owner is Unit)
{
Unit unit = (Unit)this.Owner;
unit.Orientation = Unit.OrientationFromDiff (offx, offy);
unit.Sprite.CurrentAnimation.Reset ();
}
}
}
else
{
// Target is out of range -> Move towards it
// If no path has been calculated yet or if the target has moved, calculate new path
if (Path == null || ent.TileX != targetX || ent.TileY != targetY)
{
targetX = ent.TileX;
targetY = ent.TileY;
Path = Owner.CurrentMap.CalcPath(Owner.TileX, Owner.TileY, targetX, targetY);
if (Path == null)
return;
curNodeIdx = 0;
}
if (curNodeIdx < Path.Count)
{
IMapPathNode node = Path[curNodeIdx++];
// TODO!!! Move, not Set
Owner.SetPosition (node.X, node.Y);
}
else
Log.Error("Error calculating path");
}
}
public MapPath FindPath(int startX, int startY, int endX, int endY, bool useHeuristic = true)
{
if (field == null)
{
return(null);
}
UseHeuristic = useHeuristic;
List <AStarNode> Closed = new List <AStarNode>();
BinaryHeap <AStarNode> OpenHeap = new BinaryHeap <AStarNode>(fieldWidth * fieldHeight);
AStarNode Root;
Root = new AStarNode();
Root.parent = null;
Root.X = startX;
Root.Y = startY;
Root.G = 0;
int offX = Math.Abs(Root.X - endX);
int offY = Math.Abs(Root.Y - endY);
if (UseHeuristic == false)
{
Root.H = 0;
}
else
{
if (offX > offY)
{
Root.H = 14 * offY + 10 * (offX - offY);
}
else
{
Root.H = 14 * offX + 10 * (offY - offX);
}
}
OpenHeap.Add(Root.F, Root);
int res = ProcessLowestNode(endX, endY, Closed, OpenHeap);
while (res == 0)
{
res = ProcessLowestNode(endX, endY, Closed, OpenHeap);
}
if (res == -1)
{
return(null);
}
AStarNode node = null;
if (res == 1)
{
node = GetClosedNode(endX, endY, Closed);
}
else if (res == 2)
{
node = Closed[Closed.Count - 1];
}
MapPath result = new MapPath();
result.BuildFromFinalAStarNode(node);
return(result);
}
public MapPath FindPath(int startX, int startY, int endX, int endY, bool useHeuristic = true)
{
if (field == null)
return null;
UseHeuristic = useHeuristic;
List<AStarNode> Closed = new List<AStarNode>();
BinaryHeap<AStarNode> OpenHeap = new BinaryHeap<AStarNode>(fieldWidth * fieldHeight);
AStarNode Root;
Root = new AStarNode();
Root.parent = null;
Root.X = startX;
Root.Y = startY;
Root.G = 0;
int offX = Math.Abs(Root.X - endX);
int offY = Math.Abs(Root.Y - endY);
if (UseHeuristic == false)
{
Root.H = 0;
}
else
{
if (offX > offY)
Root.H = 14 * offY + 10 * (offX - offY);
else
Root.H = 14 * offX + 10 * (offY - offX);
}
OpenHeap.Add(Root.F, Root);
int res = ProcessLowestNode (endX, endY, Closed, OpenHeap);
while (res == 0)
{
res = ProcessLowestNode(endX, endY, Closed, OpenHeap);
}
if (res == -1)
return null;
AStarNode node = null;
if (res == 1)
node = GetClosedNode(endX, endY, Closed);
else if (res == 2)
node = Closed[Closed.Count - 1];
MapPath result = new MapPath ();
result.BuildFromFinalAStarNode (node);
return result;
}