public static void GetDrawStyle(this ConfigNode node,
out UnityEngine.Color colour,
out GLLines.Style style)
{
colour = XKCDColors.ColorTranslator.FromHtml(node.GetUniqueValue("colour"));
style = (GLLines.Style)Enum.Parse(typeof(GLLines.Style),
node.GetUniqueValue("style"),
true);
}
private void DrawLineMesh(UnityEngine.Mesh mesh,
int vertex_count,
UnityEngine.Color colour,
GLLines.Style style)
{
mesh.vertices = VertexBuffer.vertices;
int index_count = style == GLLines.Style.Dashed ? vertex_count & ~1
: vertex_count;
var indices = new int[index_count];
for (int i = 0; i < index_count; ++i)
{
indices[i] = i;
}
var colours = new UnityEngine.Color[VertexBuffer.size];
if (style == GLLines.Style.Faded)
{
for (int i = 0; i < vertex_count; ++i)
{
var faded_colour = colour;
// Fade from the opacity of |colour| (when i = 0) down to 20% of that
// opacity.
faded_colour.a *= 1 - 0.8f * (i / (float)vertex_count);
colours[i] = faded_colour;
}
}
else
{
for (int i = 0; i < vertex_count; ++i)
{
colours[i] = colour;
}
}
mesh.colors = colours;
mesh.SetIndices(
indices,
style == GLLines.Style.Dashed ? UnityEngine.MeshTopology.Lines
: UnityEngine.MeshTopology.LineStrip,
submesh: 0);
mesh.RecalculateBounds();
// If the lines are drawn in layer 31 (Vectors), which sounds more
// appropriate, they vanish when zoomed out. Layer 9 works; pay no
// attention to its name.
UnityEngine.Graphics.DrawMesh(
mesh,
UnityEngine.Vector3.zero,
UnityEngine.Quaternion.identity,
GLLines.line_material,
(int)PrincipiaPluginAdapter.UnityLayers.Atmosphere,
PlanetariumCamera.Camera);
}
