void performAttackIfStarted(AttackCommand command)
{
if (attackStarted)
{
if (timeSinceLastAttack >= initialAttackDelay)
{
attackStarted = false;
RtsBullet b = new RtsBullet(this, command.Target, centerPoint, 5, 150);
b.Texture = BulletTexture;
}
}
}
// when attacking
void checkForPush(AttackCommand command)
{
lock (PotentialCollisionsLock)
{
foreach (Unit unit in PotentialCollisions)
{
if (Intersects(unit))
{
float angle = (float)Math.Atan2(unit.centerPoint.Y - centerPoint.Y, unit.centerPoint.X - centerPoint.X);
float distance = Radius + unit.Radius;
float force = distance - Vector2.Distance(unit.centerPoint, centerPoint);
if (unit == command.Target)
{
PushSimple(angle + (float)Math.PI, force);
}
//else if (unit.IsAttacking && ((AttackCommand)unit.Commands[0]).Target == command.Target)
//{
// PushSimple(angle + (float)Math.PI, force);
//}
else if (unit.IsAttacking && unit.isWithinRangeOfTarget)
{
PushSimple(angle + (float)Math.PI, force);
avoidingUnits = true;
isWithinRangeOfTarget = true;
}
else
{
//pushCount++;
unit.Push(this, angle, force * .1f);
PushSimple(angle + (float)Math.PI, force * .9f);
}
}
}
}
}
// when attacking
void checkForPush(AttackCommand command)
{
lock (PotentialCollisionsLock)
{
foreach (Unit unit in PotentialCollisions)
{
if (Intersects(unit))
{
float angle = (float)Math.Atan2(unit.centerPoint.Y - centerPoint.Y, unit.centerPoint.X - centerPoint.X);
float distance = Radius + unit.Radius;
float force = distance - Vector2.Distance(unit.centerPoint, centerPoint);
if (unit == command.Target)
{
PushSimple(angle + (float)Math.PI, force);
}
//else if (unit.IsAttacking && ((AttackCommand)unit.Commands[0]).Target == command.Target)
//{
// PushSimple(angle + (float)Math.PI, force);
//}
else if (unit.IsAttacking && unit.isWithinRangeOfTarget)
{
PushSimple(angle + (float)Math.PI, force);
avoidingUnits = true;
isWithinRangeOfTarget = true;
}
else
{
//pushCount++;
unit.Push(this, angle, force * .1f);
PushSimple(angle + (float)Math.PI, force * .9f);
}
}
}
}
}
void Attack(AttackCommand command, GameTime gameTime)
{
avoidingUnits = false;
isWithinRangeOfTarget = false;
if (command.Target.IsDead)
{
nextCommand();
return;
}
clearPushStatus();
clearHitWallStatus();
//float angle = (float)Math.Atan2(command.Target.CenterPoint.Y - centerPoint.Y, command.Target.CenterPoint.X - centerPoint.X);
float distanceToTarget = Vector2.Distance(centerPoint, command.Target.CenterPoint) - (Radius + command.Target.Radius);
if (distanceToTarget <= attackRange)
{
isWithinRangeOfTarget = true;
// begin attack animation
if (timeSinceLastAttack >= attackDelay)
{
timeSinceLastAttack = 0;
attackStarted = true;
}
turnTowards(command.Target.CenterPoint, 120 / Radius, gameTime);
}
else if (!attackStarted)
{
float moveX = Util.ScaleWithGameTime(speed.X, gameTime);
float moveY = Util.ScaleWithGameTime(speed.Y, gameTime);
Vector2 wayPoint = command.WayPoints[0];
Vector2 difference = wayPoint - centerPoint;
if (Math.Abs(difference.X) < moveX && Math.Abs(difference.Y) < moveY)
{
this.CenterPoint = wayPoint;
lastWayPoint = wayPoint;
if (command.WayPoints.Count > 1)
command.NextWayPoint(this, PathFinder);
return;
}
float angle = (float)Math.Atan2(wayPoint.Y - centerPoint.Y, wayPoint.X - centerPoint.X);
moveX *= (float)Math.Cos(angle);
moveY *= (float)Math.Sin(angle);
lastMove.X = moveX;
lastMove.Y = moveY;
PrecisePosition += lastMove;
checkForWallHit();
// checkForPush sets avoidingUnits
checkForPush(command);
command.Destination = command.Target.CenterPoint;
turnTowards(wayPoint, 120 / Radius, gameTime);
}
if (avoidingUnits)
{
if (instanceFrameCount % (reCalculatePathFrameDelay * 2) == 0)
//command.WayPoints = PathFinder.FindPath(CurrentPathNode, command.Target.CenterPoint, true);
PathFinder.AddPathFindRequest(this, command, CurrentPathNode, true);
}
else if (instanceFrameCount % reCalculatePathFrameDelay == 0)
//command.WayPoints = PathFinder.FindPath(CurrentPathNode, command.Target.CenterPoint, false);
PathFinder.AddPathFindRequest(this, command, CurrentPathNode, false);
}
void performAttackIfStarted(AttackCommand command)
{
if (attackStarted)
{
if (timeSinceLastAttack >= initialAttackDelay)
{
attackStarted = false;
RtsBullet b = new RtsBullet(this, command.Target, centerPoint, 5, 150);
b.Texture = BulletTexture;
}
}
}
void giveAttackCommand(Vector2 mousePosition)
{
foreach (Unit unit in Unit.Units)
{
if (unit.Contains(mousePosition))
{
UnitAnimation a = new UnitAnimation(unit, unit.Width, .75f, 8, false, redCircleTexture, transparentTexture);
a.Start();
foreach (Unit u in SelectedUnits)
{
if (u != unit)
{
if (keyboardState.IsKeyUp(Keys.LeftShift))
{
AttackCommand command = new AttackCommand(unit);
u.GiveCommand(command);
Unit.PathFinder.AddPathFindRequest(u, command, u.CurrentPathNode, false);
//u.GiveCommand(new AttackCommand(unit));
}
else
u.QueueCommand(new AttackCommand(unit));
}
}
return;
}
}
giveMoveCommand(mousePosition);
}
void Attack(AttackCommand command, GameTime gameTime)
{
avoidingUnits = false;
isWithinRangeOfTarget = false;
if (command.Target.IsDead)
{
nextCommand();
return;
}
clearPushStatus();
clearHitWallStatus();
//float angle = (float)Math.Atan2(command.Target.CenterPoint.Y - centerPoint.Y, command.Target.CenterPoint.X - centerPoint.X);
float distanceToTarget = Vector2.Distance(centerPoint, command.Target.CenterPoint) - (Radius + command.Target.Radius);
if (distanceToTarget <= attackRange)
{
isWithinRangeOfTarget = true;
// begin attack animation
if (timeSinceLastAttack >= attackDelay)
{
timeSinceLastAttack = 0;
attackStarted = true;
}
turnTowards(command.Target.CenterPoint, 120 / Radius, gameTime);
}
else if (!attackStarted)
{
float moveX = Util.ScaleWithGameTime(speed.X, gameTime);
float moveY = Util.ScaleWithGameTime(speed.Y, gameTime);
Vector2 wayPoint = command.WayPoints[0];
Vector2 difference = wayPoint - centerPoint;
if (Math.Abs(difference.X) < moveX && Math.Abs(difference.Y) < moveY)
{
this.CenterPoint = wayPoint;
lastWayPoint = wayPoint;
if (command.WayPoints.Count > 1)
{
command.NextWayPoint(this, PathFinder);
}
return;
}
float angle = (float)Math.Atan2(wayPoint.Y - centerPoint.Y, wayPoint.X - centerPoint.X);
moveX *= (float)Math.Cos(angle);
moveY *= (float)Math.Sin(angle);
lastMove.X = moveX;
lastMove.Y = moveY;
PrecisePosition += lastMove;
checkForWallHit();
// checkForPush sets avoidingUnits
checkForPush(command);
command.Destination = command.Target.CenterPoint;
turnTowards(wayPoint, 120 / Radius, gameTime);
}
if (avoidingUnits)
{
if (instanceFrameCount % (reCalculatePathFrameDelay * 2) == 0)
{
//command.WayPoints = PathFinder.FindPath(CurrentPathNode, command.Target.CenterPoint, true);
PathFinder.AddPathFindRequest(this, command, CurrentPathNode, true);
}
}
else if (instanceFrameCount % reCalculatePathFrameDelay == 0)
{
//command.WayPoints = PathFinder.FindPath(CurrentPathNode, command.Target.CenterPoint, false);
PathFinder.AddPathFindRequest(this, command, CurrentPathNode, false);
}
}
public void Update(GameTime gameTime)
{
instanceFrameCount++;
updateCurrentPathNode();
timeSinceLastAttack += (int)gameTime.ElapsedGameTime.TotalMilliseconds;
if (Commands.Count == 0)
{
return;
}
UnitCommand command = Commands[0];
if (command is AttackCommand)
{
AttackCommand attackCommand = (AttackCommand)command;
if (attackCommand.Target.IsDead)
{
nextCommand();
}
else
{
Attack(attackCommand, gameTime);
performAttackIfStarted(attackCommand);
}
}
else if (command is MoveCommand)
{
MoveCommand moveCommand = (MoveCommand)command;
if (instanceFrameCount % reCalculatePathFrameDelay == 0)
{
//moveCommand.WayPoints = PathFinder.FindPath(CurrentPathNode, moveCommand.Destination, false);
//PathFinder.SmoothPath(moveCommand.WayPoints, this);
PathFinder.AddPathFindRequest(this, moveCommand, CurrentPathNode, false);
}
//if (instanceFrameCount % reCalculatePathFrameDelay == 1)
// PathFinder.SmoothPath(moveCommand.WayPoints, this);
Move(moveCommand, gameTime);
}
// update attack command destinations
for (int i = 0; i < Commands.Count; i++)
{
AttackCommand c = Commands[i] as AttackCommand;
if (c != null)
{
if (c.Target.IsDead)
{
Commands.Remove(c);
i--;
}
else
{
c.Destination = c.Target.CenterPoint;
}
}
}
// update queued command starting points
for (int i = 1; i < Commands.Count; i++)
{
MoveCommand c = Commands[i] as MoveCommand;
MoveCommand previous = Commands[i - 1] as MoveCommand;
if (c != null && previous != null)
{
c.WayPoints[0] = previous.Destination;
}
}
// recalculate queued paths
/*if (command is MoveCommand && instanceFrameCount % (reCalculatePathFrameDelay) == 0)
* {
* MoveCommand moveCommand = (MoveCommand)command;
* for (int i = 1; i < Commands.Count; i++)
* {
* MoveCommand c = Commands[i] as MoveCommand;
* MoveCommand previousCommand = Commands[i - 1] as MoveCommand;
* if (c != null && previousCommand != null)
* {
* int y = (int)MathHelper.Clamp(previousCommand.Destination.Y / Map.TileSize, 0, Map.Height - 1);
* int x = (int)MathHelper.Clamp(previousCommand.Destination.X / Map.TileSize, 0, Map.Width - 1);
*
* PathNode node = PathFinder.PathNodes[y, x];
* if (!node.Tile.Walkable)
* node = PathFinder.FindNearestPathNode(y, x);
*
* c.WayPoints = PathFinder.FindPath(node, c.Destination, false);
* }
* }
* }*/
}
