public override void AI()
{
rotationFrame = (rotationFrame + 1) % rotationFrames;
float startAngle = -2f * (float)Math.PI * rotationFrame / rotationFrames;
MinionPathfindingPlayer player = Main.player[projectile.owner].GetModPlayer <MinionPathfindingPlayer>();
bool isMyPlayer = Main.myPlayer == player.player.whoAmI;
BlockAwarePathfinder pathfinder = player.GetPathfinder((int)projectile.ai[0]);
if (pathfinder.searchSucceeded || !pathfinder.searchFailed)
{
int radius = isMyPlayer ? pathfinder.searchSucceeded ? 12 : 6 : 8;
Color color = GetWaypointColor(player);
float scale = isMyPlayer ? pathfinder.searchSucceeded ? 1.2f : 0.8f : 1f;
for (int i = 0; i < 3; i++)
{
float angle = startAngle + i * 2 * (float)Math.PI / 3;
Vector2 pos = projectile.Center + radius * angle.ToRotationVector2();
Dust.NewDust(pos, 1, 1, DustType <MinionWaypointDust>(), newColor: color, Scale: scale);
}
}
else if (pathfinder.searchFailed)
{
for (int i = 0; i < 2; i++)
{
float offset = 12 * (i == 0 ? (float)Math.Sin(startAngle) : (float)Math.Cos(startAngle));
Vector2 pos = projectile.Center + new Vector2(i == 1 ? offset : -offset, offset);
Dust.NewDust(pos, 1, 1, DustType <MinionWaypointDust>(), newColor: Color.Red, Scale: 1.2f);
}
}
}
public Vector2?SelectedEnemyInRange(float maxRange, float noLOSRange = 0, bool maxRangeFromPlayer = true, Vector2?losCenter = null)
{
Vector2 losCenterVector = losCenter ?? projectile.Center;
currentTactic = player.GetModPlayer <MinionTacticsPlayer>().GetTacticForMinion(this);
MinionPathfindingPlayer pathfindingPlayer = player.GetModPlayer <MinionPathfindingPlayer>();
// to cut back on Line-of-Sight computations, always chase the same NPC for some number of frames once one has been found
if (targetNPCIndex is int idx && Main.npc[idx].active && targetNPCCacheFrames++ < currentTactic.TargetCacheFrames)
{
return(Main.npc[idx].Center);
}
Vector2 rangeCheckCenter;
BlockAwarePathfinder pathfinder = pathfindingPlayer.GetPathfinder(this);
Vector2 waypointPos = pathfindingPlayer.GetWaypointPosition(this);
if (!maxRangeFromPlayer)
{
rangeCheckCenter = projectile.Center;
}
else if (!pathfinder.InProgress() && pathfinder.searchSucceeded && waypointPos != default)
{
rangeCheckCenter = waypointPos;
}
else
{
rangeCheckCenter = player.Center;
}
List <NPC> possibleTargets = new List <NPC>();
for (int i = 0; i < Main.maxNPCs; i++)
{
NPC npc = Main.npc[i];
if (ShouldIgnoreNPC(npc))
{
continue;
}
bool inRange = Vector2.DistanceSquared(npc.Center, rangeCheckCenter) < maxRange * maxRange;
bool inNoLOSRange = Vector2.DistanceSquared(npc.Center, player.Center) < noLOSRange * noLOSRange;
bool lineOfSight = inNoLOSRange || (inRange && Collision.CanHitLine(losCenterVector, 1, 1, npc.position, npc.width, npc.height));
if (inNoLOSRange || (lineOfSight && inRange))
{
possibleTargets.Add(npc);
}
}
NPC chosen = currentTactic.ChooseTargetFromList(projectile, possibleTargets);
if (chosen != default)
{
targetNPCIndex = chosen.whoAmI;
targetNPCCacheFrames = 0;
return(chosen.Center);
}
else
{
return(null);
}
}
