public void AddTree(Vector2D position, Team team)
{
var newTree = new Tree(position, team);
trees.Add(newTree);
gameScene.Add(newTree);
UpdateBars();
new Command(newTree.TryToUpgrade).Add(new MouseHoldTrigger(newTree.DrawArea)).Add(
new TouchHoldTrigger(newTree.DrawArea));
new Command(
(start, end, dragDone) => MoveGhostsFromTreeToTree(start, end, dragDone, newTree)).Add(
new MouseDragTrigger()).Add(new TouchDragTrigger());
}
private void OnClickSelectTree()
{
new Command(Command.Click, position =>
{
var nearestTree = FindNearestTree(null, position);
if (nearestTree != null)
selection.DrawArea = Rectangle.FromCenter(nearestTree.Center,
new Size(nearestTree.Size.Height));
if (nearestTree == lastSelectedTree || Time.Total - lastSelectedTreeSoundTime < 0.2f)
return;
ContentLoader.Load<Sound>("MalletSwing").Play(0.15f);
lastSelectedTreeSoundTime = Time.Total;
lastSelectedTree = nearestTree;
});
}
private void SendWave(Tree startTree, Tree targetTree)
{
ContentLoader.Load<Sound>("GhostWaveStart").Play(0.5f);
var ghostsToSend = Math.Min(startTree.NumberOfGhosts, 5);
startTree.NumberOfGhosts -= ghostsToSend;
UpdateBars();
if (targetTree == null)
return;
var wave = new GhostWave(startTree.Center, targetTree.Center, ghostsToSend,
startTree.Team.ToColor());
wave.Attacker = startTree.Team;
wave.TargetReached += (attacker, waveSize) =>
{
targetTree.Attack((Team)attacker, waveSize);
UpdateBars();
};
}
private void MoveGhostsFromTreeToTree(Vector2D start, Vector2D end, bool dragDone,
Tree startTree)
{
if (start.DistanceTo(startTree.DrawArea.Center) > 0.04f)
return;
var targetTree = FindNearestTree(startTree, end);
arrow.IsVisible = false;
if (startTree.Team != MainMenu.PlayerTeam || targetTree == startTree ||
MainMenu.State != GameState.Game || startTree.Center.DistanceTo(end) < 0.05f)
return;
arrow.Dispose();
arrow = Effects.CreateArrow(startTree.Center, targetTree.Center);
arrow.Color = startTree.Team.ToColor();
arrow.IsVisible = !dragDone;
if ((dragDone && Time.Total - lastWaveSend > TimeBetweenWaves ||
!dragDone && Time.CheckEvery(TimeBetweenWaves)) && startTree.NumberOfGhosts >= 1)
{
lastWaveSend = Time.Total;
SendWave(startTree, targetTree);
}
}
private void HandleAi(Tree tree)
{
var nearestFreeTree = FindNearestTreeFreeTree(tree);
var nearestTree = FindNearestTreeWeakTree(tree);
if (tree.NumberOfGhosts > 10 && nearestFreeTree != null)
SendWave(tree, nearestFreeTree);
else if (tree.NumberOfGhosts > 15 && nearestTree != null)
SendWave(tree, nearestTree);
else if (tree.NumberOfGhosts > 25)
SendWave(tree, trees[Randomizer.Current.Get(0, trees.Count)]);
}
private Tree FindNearestTreeWeakTree(Tree sourceTree)
{
float nearestDistance = float.MaxValue;
Tree nearestTree = null;
foreach (var tree in trees)
if (tree.Team != Team.None && tree.Team != sourceTree.Team &&
tree.NumberOfGhosts < sourceTree.NumberOfGhosts)
{
float treeDistance = tree.Center.DistanceTo(sourceTree.Center);
if (treeDistance > nearestDistance)
continue;
nearestDistance = treeDistance;
nearestTree = tree;
}
return nearestTree;
}
private Tree FindNearestTreeFreeTree(Tree sourceTree)
{
float nearestDistance = float.MaxValue;
Tree nearestTree = null;
foreach (var tree in trees)
if (tree.Team == Team.None)
{
float treeDistance = tree.Center.DistanceTo(sourceTree.Center);
if (treeDistance > nearestDistance)
continue;
nearestDistance = treeDistance;
nearestTree = tree;
}
return nearestTree;
}
private Tree FindNearestTree(Tree previousTree, Vector2D target)
{
float nearestDistance = float.MaxValue;
Tree nearestTree = null;
foreach (var tree in trees)
if (tree != previousTree)
{
float treeDistance = tree.Center.DistanceTo(target);
if (previousTree != null)
treeDistance +=
Math.Abs(previousTree.Center.RotationTo(target) -
previousTree.Center.RotationTo(tree.Center)) / 500.0f;
if (treeDistance > nearestDistance)
continue;
nearestDistance = treeDistance;
nearestTree = tree;
}
return nearestTree;
}