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hax!

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git-svn-id: svn://svn.ijw.co.nz/svn/OpenRa@1191 993157c7-ee19-0410-b2c4-bb4e9862e678
This commit is contained in:
chrisf
2007-07-13 09:36:58 +00:00
parent d37bab15d0
commit cb54dbf81b
7 changed files with 49 additions and 22 deletions
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44
OpenRa.Game/Util.cs
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@@ -24,13 +24,33 @@ namespace OpenRa.Game
return (v > 0) ? v1 : v0;
}
public static Vertex MakeVertex(PointF o, float u, float v, SheetRectangle<Sheet> r)
static PointF EncodeVertexAttributes(TextureChannel channel, int paletteLine)
{
Converter<TextureChannel, float> channelEncoder = delegate(TextureChannel c)
{
switch (c)
{
case TextureChannel.Red: return 0.75f;
case TextureChannel.Green: return 0.25f;
case TextureChannel.Blue: return -0.25f;
case TextureChannel.Alpha: return -0.75f;
default:
throw new ArgumentException();
}
};
return new PointF(paletteLine / 16.0f, channelEncoder(channel));
}
public static Vertex MakeVertex(PointF o, float u, float v, SheetRectangle<Sheet> r, int palette)
{
float x2 = o.X + r.size.Width;
float y2 = o.Y + r.size.Height;
return new Vertex(Lerp(o.X, x2, u), Lerp(o.Y, y2, v), 0, U(r, u), V(r, v),
0, 1);
PointF p = EncodeVertexAttributes(r.channel, palette);
return new Vertex(Lerp(o.X, x2, u), Lerp(o.Y, y2, v), 0, U(r, u), V(r, v),
p.X, p.Y);
}
static float Lerp(float a, float b, float t)
@@ -38,14 +58,14 @@ namespace OpenRa.Game
return (1 - t) * a + t * b;
}
public static void CreateQuad(List<Vertex> vertices, List<ushort> indices, PointF o, SheetRectangle<Sheet> r)
public static void CreateQuad(List<Vertex> vertices, List<ushort> indices, PointF o, SheetRectangle<Sheet> r, int palette)
{
ushort offset = (ushort)vertices.Count;
vertices.Add(Util.MakeVertex(o, 0, 0, r));
vertices.Add(Util.MakeVertex(o, 1, 0, r));
vertices.Add(Util.MakeVertex(o, 0, 1, r));
vertices.Add(Util.MakeVertex(o, 1, 1, r));
vertices.Add(Util.MakeVertex(o, 0, 0, r, palette));
vertices.Add(Util.MakeVertex(o, 1, 0, r, palette));
vertices.Add(Util.MakeVertex(o, 0, 1, r, palette));
vertices.Add(Util.MakeVertex(o, 1, 1, r, palette));
indices.Add(offset);
indices.Add((ushort)(offset + 1));
@@ -82,12 +102,4 @@ namespace OpenRa.Game
}
}
}
enum TextureChannel
{
Red,
Green,
Blue,
Alpha,
}
}