diff --git a/OpenRA.Mods.Common/Traits/Render/LeavesTrails.cs b/OpenRA.Mods.Common/Traits/Render/LeavesTrails.cs index 1670c3ade6..6d026e7f2c 100644 --- a/OpenRA.Mods.Common/Traits/Render/LeavesTrails.cs +++ b/OpenRA.Mods.Common/Traits/Render/LeavesTrails.cs @@ -49,41 +49,78 @@ namespace OpenRA.Mods.Common.Traits.Render [Desc("Delay between trail updates when moving.")] public readonly int MovingInterval = 0; + [Desc("Delay before first trail.")] + public readonly int StartDelay = 0; + + [Desc("Position relative to body.")] + public readonly WVec Offset = WVec.Zero; + + [Desc("Use opposite offset for every second spawned trail.")] + public readonly bool AlternateOffset = false; + public override object Create(ActorInitializer init) { return new LeavesTrails(init.Self, this); } } - public class LeavesTrails : UpgradableTrait, ITick + public class LeavesTrails : UpgradableTrait, ITick, INotifyCreated { + BodyOrientation body; + IFacing facing; + int cachedFacing; + int cachedInterval; + public LeavesTrails(Actor self, LeavesTrailsInfo info) - : base(info) { } + : base(info) + { + cachedInterval = Info.StartDelay; + } + + public void Created(Actor self) + { + body = self.Trait(); + facing = self.TraitOrDefault(); + cachedFacing = facing != null ? facing.Facing : 0; + } WPos cachedPosition; int ticks; + bool evenNumber; + bool wasStationary; + bool isMoving; public void Tick(Actor self) { if (IsTraitDisabled) return; - var isMoving = self.CenterPosition != cachedPosition; + wasStationary = !isMoving; + isMoving = self.CenterPosition != cachedPosition; if ((isMoving && !Info.TrailWhileMoving) || (!isMoving && !Info.TrailWhileStationary)) return; - var interval = isMoving ? Info.MovingInterval : Info.StationaryInterval; - if (++ticks >= interval) + if (isMoving && wasStationary) + cachedInterval = Info.StartDelay; + + if (++ticks >= cachedInterval) { var cachedCell = self.World.Map.CellContaining(cachedPosition); var type = self.World.Map.GetTerrainInfo(cachedCell).Type; - var pos = Info.Type == TrailType.CenterPosition ? cachedPosition : - self.World.Map.CenterOfCell(cachedCell); + var offset = Info.Offset.Rotate(body.QuantizeOrientation(self, self.Orientation)); + var pos = Info.Type == TrailType.CenterPosition ? cachedPosition + body.LocalToWorld(Info.AlternateOffset && evenNumber ? -offset : offset) + : self.World.Map.CenterOfCell(cachedCell); if (Info.TerrainTypes.Contains(type) && !string.IsNullOrEmpty(Info.Image)) self.World.AddFrameEndTask(w => w.Add(new SpriteEffect(pos, self.World, Info.Image, - Info.Sequences.Random(Game.CosmeticRandom), Info.Palette, 0, Info.VisibleThroughFog))); + Info.Sequences.Random(Game.CosmeticRandom), Info.Palette, cachedFacing, Info.VisibleThroughFog))); cachedPosition = self.CenterPosition; + cachedFacing = facing != null ? facing.Facing : 0; ticks = 0; + + if (!evenNumber) + evenNumber ^= true; + + cachedInterval = isMoving && !wasStationary ? Info.MovingInterval : Info.StationaryInterval; } }