public override void Update(float aDeltaTime)
{
float dist = 0.0f;
float ang = 0.0f;
Vector2 force = new Vector2();
MagnetNode magnet;
MagnetableNode item;
for (int i = 0, n = _magnetNodes.Count; i < n; i++)
{
magnet = _magnetNodes[i];
for (int j = _magnetableNodes.Count - 1; j >= 0; j--)
{
item = _magnetableNodes[j];
item.Magnetable.lifeTime += aDeltaTime;
dist = AntMath.Distance(magnet.entity.Position, item.entity.Position);
if ((magnet.Magnet.magnetKind == item.Magnetable.kind ||
magnet.Magnet.magnetKind == ItemKind.All) &&
dist < magnet.Magnet.distance &&
item.Magnetable.lifeTime > 2.0f)
{
ang = AntMath.AngleRad(item.entity.Position, magnet.entity.Position);
force.x = magnet.Magnet.force * Mathf.Cos(ang);
force.y = magnet.Magnet.force * Mathf.Sin(ang);
item.Magnetable.body.AddForce(force, ForceMode2D.Impulse);
if (dist <= magnet.Magnet.collectDistance)
{
CollectItem(magnet, item);
Engine.RemoveEntity(item.entity);
GameObject.Destroy(item.entity.gameObject);
}
}
}
}
}
/// <summary>
/// Updates vision sensor.
/// </summary>
private void UpdateVision()
{
var G = Game.Instance;
// 1. See on the items.
// --------------------
float dist;
float angle;
Vector2 seeTo;
Vector2 seeFrom;
for (int i = G.collectableItems.Count - 1; i >= 0; i--)
{
// Calc distance to the item.
dist = AntMath.Distance(_t.position, G.collectableItems[i].Position);
if (dist < _control.visionRadius)
{
// If distance in our vision field.
// Try to make raycast to it.
angle = AntMath.AngleRad(_t.position, G.collectableItems[i].Position);
seeFrom = new Vector2(
_t.position.x + 0.4f * Mathf.Cos(angle),
_t.position.y + 0.4f * Mathf.Sin(angle)
);
seeTo = new Vector2(
dist * Mathf.Cos(angle),
dist * Mathf.Sin(angle)
);
var hit = Physics2D.Raycast(seeFrom, seeTo);
if (hit.collider != null)
{
var ci = hit.collider.GetComponent <CollectableItem>();
if (ci != null)
{
// Yay! We actually can see some item.
// Just add it to our see list.
AddItem(ci);
// Save vision points for debug drawing.
if (showVision)
{
seeTo += (Vector2)G.collectableItems[i].Position;
_seeFrom.Add(seeFrom);
_seeTo.Add(G.collectableItems[i].Position);
}
}
}
}
}
// 2. See on the enemies.
// ----------------------
for (int i = G.tanks.Count - 1; i >= 0; i--)
{
if (G.tanks[i].team == _control.team)
{
// Friendly tank. Skip...
continue;
}
// Calc distance to the enemy tank.
dist = AntMath.Distance(_t.position, G.tanks[i].Position);
if (dist < _control.visionRadius)
{
// If distance in our vision field.
// Try to make raycast to it.
angle = AntMath.AngleRad(_t.position, G.tanks[i].Position);
seeFrom = new Vector2(
_t.position.x + 0.4f * Mathf.Cos(angle),
_t.position.y + 0.4f * Mathf.Sin(angle)
);
seeTo = new Vector2(
dist * Mathf.Cos(angle),
dist * Mathf.Sin(angle)
);
var hit = Physics2D.Raycast(seeFrom, seeTo);
if (hit.collider != null)
{
var tc = hit.collider.GetComponent <TankControl>();
if (tc != null && tc.team != _control.team)
{
// We actually can see enemy tank.
// Add it to our see list.
AddTank(tc);
// Save vision points for debug drawing.
if (showVision)
{
seeTo += (Vector2)G.tanks[i].Position;
_seeFrom.Add(seeFrom);
_seeTo.Add(G.tanks[i].Position);
}
}
}
}
}
}
public override void Execute(float aDeltaTime, float aTimeScale)
{
if (_targetItem != null)
{
float dist = AntMath.Distance(_control.Position, _targetItem.Position);
if (dist <= _control.magnetRadius)
{
// Magneting our loot!
float angle = AntMath.AngleRad(_targetItem.Position, _control.Position);
var force = new Vector2(
0.1f * Mathf.Cos(angle),
0.1f * Mathf.Sin(angle)
);
_targetItem.AddForce(force);
if (dist < _control.collectRadius)
{
// Yay! We got the item!
_targetItem.Collect();
switch (_itemKind)
{
case ItemKind.Gun:
if (_control.Tower.IsHasBomb)
{
// Drop bomb on the map.
Game.Instance.SpawnItem(
_control.Position,
ItemKind.Bomb,
_control.transform.parent.transform
);
}
_control.Tower.IsHasGun = true;
break;
case ItemKind.Ammo:
_control.Tower.GiveAmmo(3);
break;
case ItemKind.Bomb:
if (_control.Tower.IsHasGun)
{
// Drop gun on the map.
Game.Instance.SpawnItem(
_control.Position,
ItemKind.Gun,
_control.transform.parent.transform
);
}
_control.Tower.IsHasBomb = true;
break;
case ItemKind.Repair:
_control.Health = _control.maxHealth;
break;
}
Finish();
}
}
}
else
{
// Item is lost :(
// Finish the action.
Finish();
}
}