public List <ICollider> GetAdjecentUnits(Vector2 position)
{
return(mUnitMap.GetAdjacentUnits(position));
}
public void Update(GameTime gametime)
{
mUnitMap?.Update(gametime);
#region Check targets for friendly units
foreach (var unit in mFriendlyMilitary)
{
// iterate through each friendly unit, if there's a target nearby, shoot the closest one.
// get all the adjacent units
var adjacentUnits = mUnitMap?.GetAdjacentUnits(unit.AbsolutePosition);
// remember the closest adjacent unit.
ICollider closestAdjacent = null;
var closestAdjacentDistance =
1500f; // a separate variable is used so that it can be initalized with a very big value.
if (adjacentUnits == null)
{
continue;
}
// iterate through all adjacent units to find the closest adjacent unit.
foreach (var adjacentUnit in adjacentUnits)
{
// only calculate the distance to the adjacent unit if the unit is not friendly.
if (!adjacentUnit.Friendly)
{
// calculate the distance
var dist = Geometry.GetQuickDistance(unit.AbsolutePosition, adjacentUnit.AbsolutePosition);
// check if it's within range
if (dist < unit.Range)
{
// if yes, check if it's closer than the previous closest
if (dist < closestAdjacentDistance)
{
closestAdjacentDistance = dist;
closestAdjacent = adjacentUnit;
}
}
}
}
// if there is something close enough, shoot it. Else, set the target to null.
if (closestAdjacent != null)
{
unit.SetShootingTarget(closestAdjacent);
}
else
{
unit.SetShootingTarget(null);
}
}
#endregion
#region Check targets for friendly turrets
foreach (var turret in mFriendlyDefensePlatforms)
{
// iterate through each friendly turret, if there's a target nearby, shoot it.
// get all the adjacent units
var adjacentUnits = mUnitMap?.GetAdjacentUnits(turret.AbsolutePosition);
// remember the closest adjacent unit.
ICollider closestAdjacent = null;
var closestAdjacentDistance =
1500f; // a separate variable is used so that it can be initalized with a very big value.
if (adjacentUnits == null)
{
continue;
}
// iterate through all adjacent units to find the closest adjacent unit.
foreach (var adjacentUnit in adjacentUnits)
{
// only calculate the distance to the adjacent unit if the unit is not friendly.
if (!adjacentUnit.Friendly)
{
// calculate the distance
var dist = Geometry.GetQuickDistance(turret.AbsolutePosition, adjacentUnit.AbsolutePosition);
// check if it's within range
if (dist < turret.Range)
{
// if yes, check if it's closer than the previous closest
if (dist < closestAdjacentDistance)
{
closestAdjacentDistance = dist;
closestAdjacent = adjacentUnit;
}
}
}
}
// if there is something close enough, shoot it. Else, set the target to null.
if (closestAdjacent != null)
{
turret.SetShootingTarget(closestAdjacent);
}
else
{
turret.SetShootingTarget(null);
}
}
#endregion
#region Check targets for hostile units
foreach (var unit in mHostileMilitary)
{
// iterate through each hostile unit, if there's a target nearby, shoot it.
// get all the adjacent units
var adjacentUnits = mUnitMap?.GetAdjacentUnits(unit.AbsolutePosition);
// remember the closest adjacent unit.
ICollider closestAdjacent = null;
var closestAdjacentDistance =
1500f; // a separate variable is used so that it can be initalized with a very big value.
if (adjacentUnits == null)
{
continue;
}
// iterate through all adjacent units to find the closest adjacent unit.
foreach (var adjacentUnit in adjacentUnits)
{
// only calculate the distance to the adjacent unit if the unit is friendly.
if (adjacentUnit.Friendly)
{
// calculate the distance
var dist = Geometry.GetQuickDistance(unit.AbsolutePosition, adjacentUnit.AbsolutePosition);
// check if it's within range
if (dist < unit.Range)
{
// if yes, check if it's closer than the previous closest
if (dist < closestAdjacentDistance)
{
closestAdjacentDistance = dist;
closestAdjacent = adjacentUnit;
}
}
}
}
// if there is something close enough, shoot it. Else, set the target to null.
if (closestAdjacent != null)
{
var platform = closestAdjacent as PlatformBlank;
if (platform != null && !platform.GetBluePrintStatus())
{
unit.SetShootingTarget(closestAdjacent);
}
else if (platform == null)
{
unit.SetShootingTarget(closestAdjacent);
}
}
else
{
unit.SetShootingTarget(null);
}
}
#endregion
#region Check targets for hostile turrets
foreach (var turret in mHostileDefensePlatforms)
{
// iterate through each friendly turret, if there's a target nearby, shoot it.
// get all the adjacent units
var adjacentUnits = mUnitMap?.GetAdjacentUnits(turret.AbsolutePosition);
// remember the closest adjacent unit.
ICollider closestAdjacent = null;
var closestAdjacentDistance =
1500f; // a separate variable is used so that it can be initalized with a very big value.
if (adjacentUnits == null)
{
continue;
}
// iterate through all adjacent units to find the closest adjacent unit.
foreach (var adjacentUnit in adjacentUnits)
{
// only calculate the distance to the adjacent unit if the unit is friendly.
if (adjacentUnit.Friendly)
{
// calculate the distance
var dist = Geometry.GetQuickDistance(turret.AbsolutePosition, adjacentUnit.AbsolutePosition);
// check if it's within range
if (dist < turret.Range)
{
// if yes, check if it's closer than the previous closest
if (dist < closestAdjacentDistance)
{
closestAdjacentDistance = dist;
closestAdjacent = adjacentUnit;
}
}
}
}
// if there is something close enough, shoot it. Else, set the target to null.
if (closestAdjacent != null)
{
turret.SetShootingTarget(closestAdjacent);
}
else
{
turret.SetShootingTarget(null);
}
}
#endregion
#region Flocking adding
if (mSelected.Count > 0)
{
mIsSelected = true;
mSelectedGroup.Reset();
mSelected.ForEach(u => mSelectedGroup.AssignUnit(u));
mGroups.Add(mSelectedGroup);
}
else if (mIsSelected)
{
mIsSelected = false;
mSelectedGroup = new FlockingGroup(ref mDirector, ref mMap);
}
mSelected = new List <IFlocking>();
mGroups.RemoveAll(g => g.Die());
mGroups.ForEach(g => g.Update(gametime));
#endregion
}