/// <summary>
/// Creates any combat events that will result in the launch.
/// </summary>
private List <GameEvent> CreateCombatEvents(Sub launchedSub, GameState state)
{
List <GameEvent> _combatEvents = new List <GameEvent>();
// Create the combat event for arrival
CombatEvent arriveCombat = new CombatEvent(launchedSub, launchedSub.GetDestination(), launchedSub.GetExpectedArrival());
_combatEvents.Add(arriveCombat);
// Determine any combat events that may exist along the way.
// First determine if any subs are on the same path.
// Subs will only be on the same path if it is outpost to outpost
if (launchedSub.GetDestination() is Outpost && launchedSub.GetSource() is Outpost)
{
foreach (Sub sub in state.getSubsOnPath((Outpost)launchedSub.GetSource(), (Outpost)launchedSub.GetDestination()))
{
// Don't combat with yourself
if (sub == launchedSub)
{
continue;
}
// Determine if we combat it
if (sub.GetDirection() == launchedSub.GetDirection())
{
GameTick ourArrival = launchedSub.GetExpectedArrival();
GameTick theirArrival = sub.GetExpectedArrival();
if (ourArrival < theirArrival)
{
// We can catch it. Determine when and create a combat event.
float distanceBetween = (sub.GetCurrentPosition(state.CurrentTick) - launchedSub.GetCurrentPosition(state.GetCurrentTick())).ToVector2().Length();
float velocityDifference = launchedSub.GetSpeed() - sub.GetSpeed();
int catchInTicks = (int)Math.Ceiling(distanceBetween / velocityDifference);
CombatEvent catchCombat = new CombatEvent(launchedSub, sub, state.GetCurrentTick().Advance(catchInTicks));
_combatEvents.Add(arriveCombat);
}
}
else
{
// Sub is moving towards us.
if (sub.GetOwner() != launchedSub.GetOwner())
{
// Combat will occur
// Determine when and create a combat event.
// Determine the number of ticks between the incoming sub & the launched sub.
int ticksBetweenSubs = sub.GetExpectedArrival() - launchedSub.GetLaunchTick();
// Determine the speed ratio as a number between 0-0.5
double speedRatio = (sub.GetSpeed() / launchedSub.GetSpeed()) - 0.5;
int ticksUntilCombat = (int)Math.Floor(speedRatio * ticksBetweenSubs);
// Determine collision position:
RftVector combatPosition = new RftVector(RftVector.Map, launchedSub.GetDirection().ToVector2() * ticksUntilCombat);
CombatEvent combatEvent = new CombatEvent(sub, launchedSub, state.CurrentTick.Advance(ticksUntilCombat));
_combatEvents.Add(combatEvent);
}
}
}
}
return(_combatEvents);
}
