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Add two-colour line rendering to RgbaColorRenderer.

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This commit is contained in:
Paul Chote
2015-12-10 17:10:20 +00:00
parent c5dbc5fab7
commit bb0a7bdaf5
1 changed files with 28 additions and 0 deletions
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28
OpenRA.Game/Graphics/RgbaColorRenderer.cs
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@@ -45,6 +45,34 @@ namespace OpenRA.Graphics
} }
} }
public void DrawLine(float2 start, float2 end, float width, Color startColor, Color endColor)
{
renderer.CurrentBatchRenderer = this;
if (nv + 4 > renderer.TempBufferSize)
Flush();
var delta = (end - start) / (end - start).Length;
var corner = width / 2 * new float2(-delta.Y, delta.X);
startColor = Util.PremultiplyAlpha(startColor);
var sr = startColor.R / 255.0f;
var sg = startColor.G / 255.0f;
var sb = startColor.B / 255.0f;
var sa = startColor.A / 255.0f;
endColor = Util.PremultiplyAlpha(endColor);
var er = endColor.R / 255.0f;
var eg = endColor.G / 255.0f;
var eb = endColor.B / 255.0f;
var ea = endColor.A / 255.0f;
vertices[nv++] = new Vertex(start - corner + Offset, sr, sg, sb, sa);
vertices[nv++] = new Vertex(start + corner + Offset, sr, sg, sb, sa);
vertices[nv++] = new Vertex(end + corner + Offset, er, eg, eb, ea);
vertices[nv++] = new Vertex(end - corner + Offset, er, eg, eb, ea);
}
public void DrawLine(float2 start, float2 end, float width, Color color) public void DrawLine(float2 start, float2 end, float width, Color color)
{ {
renderer.CurrentBatchRenderer = this; renderer.CurrentBatchRenderer = this;