public void RecordCommand(Command command, List<Hit> hits)
{
var enemy = command.Character;
if (!_threat.ContainsKey(enemy))
{
_threat.Add(enemy, 0);
}
foreach (var hit in hits)
{
var target = BattleBoard.GetCharacterAt(hit.Target);
var damage = hit.Damage;
// if nobody is at this spot, ignore it. this shouldn't come up
// since a hit is only generated it someone is there, but i'll
// account for it anyway
if (target == null) continue;
// hits against the players team (heal/friendly fire) are inverted
// to maintain sanity. healing raises threat, friendly fire lowers it
if (target.Faction == 0) damage = 0 - damage;
_threat[enemy] += damage;
}
}
/// <summary>
/// Create a callback function to process if the player chooses to have a character attack. This callback will display the targetting grid
/// and bind _aimAbility to a function that queues an attack command from the character onto the target.
/// </summary>
/// <param name="character">The character whose attack is being chosen.</param>
/// <param name="ability">The ability currently being aimed.</param>
/// <returns></returns>
private void SelectAbilityTarget(Combatant character, Ability ability)
{
_state = BattleState.AimingAbility;
Gui.Screen.Desktop.Children.Remove(_radialMenuControl);
_battleBoardLayer.SetTargettingGrid(
ability.Name == "Move" ?
character.GetMovementGrid(BattleBoard.GetAccessibleGrid(character.Faction)) :
ability.GenerateTargetGrid(BattleBoard.Sandbag.Clone()),
ability.GenerateImpactGrid()
);
_battleBoardLayer.AbilityAim = true;
_aimAbility = (x, y) =>
{
// only target enemies with angry spells and allies with friendly spells
if (!ability.CanTarget(BattleBoard.IsOccupied(new Point(x, y))))
return false;
character.Avatar.UpdateVelocity(x - character.Avatar.Location.X, y - character.Avatar.Location.Y);
character.Avatar.UpdateVelocity(0, 0);
// make sure the ability knows who is casting it. this probably shouldn't
// be done here, but there are issues doing it elsewhere.
ability.Character = character;
var command = new Command
{
Character = character,
Target = new Point(x, y),
Ability = ability
};
if(ability.Name == "Move")
{
ExecuteCommand(command);
return true;
}
character.CanAct = false;
QueuedCommands.Add(command);
_queuedCommands.UpdateControls();
_state = BattleState.Delay;
_delayState = BattleState.PlayerTurn;
_delayTimer = 0.05F;
ResetState();
return true;
};
}
private void UpdateBattleStateEnemyTurn()
{
var combatants = (from c in BattleBoard.Characters where c.Faction == 1 && c.CanMove select c).ToArray();
if (combatants.Any())
{
// find first character that can move
_selectedCharacter = combatants[0];
// find the optimal location
var decision = _commander.CalculateAction(_selectedCharacter);
// create move command to that location
var moveCommand = new Command
{
Ability = Ability.Factory(Game, "move"),
Character = _selectedCharacter,
Target = decision.Destination
};
QueuedCommands.Add(moveCommand);
if (decision.Command.Ability != null)
QueuedCommands.Add(decision.Command);
ExecuteQueuedCommands();
return;
}
ExecuteQueuedCommands();
// all enemy players have moved / attacked
ChangeFaction(0);
}
/// <summary>
/// Process a command given by either the AI or the player. These commands can be attacking, casting a spell,
/// using an item or moving.
/// </summary>
/// <param name="command">The command to be executed.</param>
public void ExecuteCommand(Command command)
{
_state = BattleState.ExecutingCommand;
switch (command.Ability.Name)
{
case "Move":
{
// special case for movement
var grid = BattleBoard.GetAccessibleGrid(command.Character.Faction);
// run an A* pathfinding algorithm to get a route
var coords = grid.Pathfind(new Point((int)command.Character.Avatar.Location.X, (int)command.Character.Avatar.Location.Y), command.Target);
// remove any points on the path that don't require a direction change
for (var i = coords.Count - 2; i > 0; i--)
{
if(coords[i - 1].X == coords[i + 1].X || coords[i - 1].Y == coords[i + 1].Y)
{
coords.RemoveAt(i);
}
}
_movementCoords = coords;
_state = BattleState.MovingCharacter;
command.Character.CanMove = false;
if (FactionTurn == 1) break;
// if this character has any queued commands, cancel them upon moving
var queuedCommands = (from c in QueuedCommands where c.Character == command.Character select c).ToArray();
if(queuedCommands.Length > 0)
{
QueuedCommands.Remove(queuedCommands[0]);
command.Character.CanAct = true;
}
}
break;
default:
var hits = command.Ability.GenerateHits(BattleBoard, command.Target);
// remove any hits on characters that no longer exist
for (var i = hits.Count - 1; i >= 0; i--)
{
if(BattleBoard.GetCharacterAt(hits[i].Target) == null)
{
hits.RemoveAt(i);
}
}
_commander.RecordCommand(command, hits);
// if this ability still has hits left, process them normally
if (hits.Count > 0)
{
command.Character.CanAct = false;
DisplayHits(hits);
command.Character.CurrentMana -= command.Ability.ManaCost;
}
break;
}
}