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Convert contrails to world coords.

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This commit is contained in:
Paul Chote
2013-03-31 19:18:30 +13:00
parent 01bf635e26
commit 7c21459b48
8 changed files with 63 additions and 32 deletions
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38
OpenRA.Mods.RA/Effects/Contrail.cs
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@@ -16,9 +16,10 @@ using OpenRA.Traits;
namespace OpenRA.Mods.RA
{
class ContrailInfo : ITraitInfo
class ContrailInfo : ITraitInfo, Requires<LocalCoordinatesModelInfo>
{
public readonly int[] ContrailOffset = {0, 0};
[Desc("Position relative to body")]
public readonly WVec Offset = WVec.Zero;
public readonly int TrailLength = 25;
public readonly Color Color = Color.White;
@@ -29,31 +30,31 @@ namespace OpenRA.Mods.RA
class Contrail : ITick, IPostRender
{
Turret contrailTurret = null;
ContrailInfo info;
ContrailHistory history;
IFacing facing;
IMove move;
ILocalCoordinatesModel coords;
public Contrail(Actor self, ContrailInfo info)
{
contrailTurret = new Turret(info.ContrailOffset);
this.info = info;
history = new ContrailHistory(info.TrailLength,
info.UsePlayerColor ? ContrailHistory.ChooseColor(self) : info.Color);
facing = self.Trait<IFacing>();
move = self.Trait<IMove>();
coords = self.Trait<ILocalCoordinatesModel>();
}
public void Tick(Actor self)
{
history.Tick(self.CenterLocation - new PVecInt(0, move.Altitude) - (PVecInt)contrailTurret.PxPosition(self, facing).ToInt2());
var local = info.Offset.Rotate(coords.QuantizeOrientation(self, self.Orientation));
history.Tick(self.CenterPosition + coords.LocalToWorld(local));
}
public void RenderAfterWorld(WorldRenderer wr, Actor self) { history.Render(self); }
public void RenderAfterWorld(WorldRenderer wr, Actor self) { history.Render(wr, self); }
}
class ContrailHistory
{
List<PPos> positions = new List<PPos>();
List<WPos> positions = new List<WPos>();
readonly int TrailLength;
readonly Color Color;
readonly int StartSkip;
@@ -74,27 +75,28 @@ namespace OpenRA.Mods.RA
this.StartSkip = startSkip;
}
public void Tick(PPos currentPos)
public void Tick(WPos currentPos)
{
positions.Add(currentPos);
if (positions.Count >= TrailLength)
positions.RemoveAt(0);
}
public void Render(Actor self)
public void Render(WorldRenderer wr, Actor self)
{
Color trailStart = Color;
Color trailEnd = Color.FromArgb(trailStart.A - 255 / TrailLength, trailStart.R, trailStart.G, trailStart.B);
for (int i = positions.Count - 1 - StartSkip; i >= 4; --i)
{
var conPos = PPos.Average(positions[i], positions[i-1], positions[i-2], positions[i-3]);
var nextPos = PPos.Average(positions[i-1], positions[i-2], positions[i-3], positions[i-4]);
// World positions
var conPos = WPos.Average(positions[i], positions[i-1], positions[i-2], positions[i-3]);
var nextPos = WPos.Average(positions[i-1], positions[i-2], positions[i-3], positions[i-4]);
if (self.World.RenderedShroud.IsVisible(conPos.ToCPos()) ||
self.World.RenderedShroud.IsVisible(nextPos.ToCPos()))
if (self.World.RenderedShroud.IsVisible(new CPos(conPos)) ||
self.World.RenderedShroud.IsVisible(new CPos(nextPos)))
{
Game.Renderer.WorldLineRenderer.DrawLine(conPos.ToFloat2(), nextPos.ToFloat2(), trailStart, trailEnd);
Game.Renderer.WorldLineRenderer.DrawLine(wr.ScreenPosition(conPos), wr.ScreenPosition(nextPos), trailStart, trailEnd);
trailStart = trailEnd;
trailEnd = Color.FromArgb(trailStart.A - 255 / positions.Count, trailStart.R, trailStart.G, trailStart.B);