public static void DrawCube(VertexBuffer vbo, Color color, float x, float z, float width, float length, float bottom, float height)
{
var v1 = new Vector3(x, bottom, z);
var v2 = new Vector3(x + width, bottom, z);
var v3 = new Vector3(x + width, bottom, z + length);
var v4 = new Vector3(x, bottom, z + length);
var v5 = new Vector3(x, bottom + height, z);
var v6 = new Vector3(x + width, bottom + height, z);
var v7 = new Vector3(x + width, bottom + height, z + length);
var v8 = new Vector3(x, bottom + height, z + length);
// bottom vertices
var normal = new Vector3(0, -1, 0);
vbo.AddVerticies(color, normal, v1, v2, v3, v1, v3, v4);
// top vertices
normal = new Vector3(0, 1, 0);
vbo.AddVerticies(color, normal, v8, v7, v6, v8, v6, v5);
// -z facing vertices
normal = new Vector3(0, 0, -1);
vbo.AddVerticies(color, normal, v5, v6, v2, v5, v2, v1);
// x facing vertices
normal = new Vector3(1, 0, 0);
vbo.AddVerticies(color, normal, v6, v7, v3, v6, v3, v2);
// z facing vertices
normal = new Vector3(0, 0, 1);
vbo.AddVerticies(color, normal, v4, v3, v7, v4, v7, v8);
// -x facing vertices
normal = new Vector3(-1, 0, 0);
vbo.AddVerticies(color, normal, v1, v4, v8, v1, v8, v5);
}
private VertexBuffer GetLineVbo(Dictionary<int, VertexBuffer> widthMap, int width)
{
VertexBuffer vbo;
if (!widthMap.TryGetValue(width, out vbo))
{
vbo = new VertexBuffer();
vbo.Init();
widthMap[width] = vbo;
}
return vbo;
}