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Merge pull request #2798 from bidifx/contrail

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smooth contrails
This commit is contained in:
Chris Forbes
2013-03-19 12:24:50 -07:00
parent 78f961f653 e562f8d2cc
commit 8c811ed21d
2 changed files with 23 additions and 4 deletions
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19
OpenRA.Game/PPos.cs
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@@ -44,6 +44,25 @@ namespace OpenRA
return a + ((PVecInt)(b - a) * mul / div);
}
public static PPos Average(params PPos[] list)
{
if (list == null || list.Length == 0)
throw new ArgumentException("PPos: Cannot calculate average of empty list.");
var x = 0;
var y = 0;
foreach(var pos in list)
{
x += pos.X;
y += pos.Y;
}
x /= list.Length;
y /= list.Length;
return new PPos(x,y);
}
public float2 ToFloat2() { return new float2(X, Y); }
public int2 ToInt2() { return new int2(X, Y); }
public CPos ToCPos() { return new CPos((int)(1f / Game.CellSize * X), (int)(1f / Game.CellSize * Y)); }

8
OpenRA.Mods.RA/Effects/Contrail.cs
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@@ -20,7 +20,7 @@ namespace OpenRA.Mods.RA
{
public readonly int[] ContrailOffset = {0, 0};
public readonly int TrailLength = 20;
public readonly int TrailLength = 25;
public readonly Color Color = Color.White;
public readonly bool UsePlayerColor = true;
@@ -86,10 +86,10 @@ namespace OpenRA.Mods.RA
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 >= 1; --i)
for (int i = positions.Count - 1 - StartSkip; i >= 4; --i)
{
var conPos = positions[i];
var nextPos = positions[i - 1];
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]);
if (self.World.RenderedShroud.IsVisible(conPos.ToCPos()) ||
self.World.RenderedShroud.IsVisible(nextPos.ToCPos()))