/// <summary>
/// Initializes the static fields and properites of the <see cref="UVMapping"/> class
/// </summary>
static UVMapping()
{
UVMapping.defaultMapping = new UVMapping();
UVMapping.defaultMapping.gameObjectName = UVMapping.AnyGameObjectName;
UVMapping.defaultMapping.uv = new Vector2[]
{
new Vector2(0.0f, 0.0f),
new Vector2(1.0f, 0.0f),
new Vector2(0.0f, 1.0f),
new Vector2(1.0f, 1.0f)
};
}
/// <summary>
/// Returns the UV mapping for the specified name or <seealso cref="UVMapping.DefaultMapping"/>
/// if none is found.
/// </summary>
/// <param name="mappings">An enumarable of mappings</param>
/// <param name="name">The name of the GameObject</param>
/// <returns>A fitting UVMapping or <seealso cref="UVMapping.DefaultMapping"/></returns>
public static UVMapping GetMappingFor(this IEnumerable <UVMapping> mappings, string name)
{
UVMapping @default = null;
foreach (UVMapping mapping in mappings)
{
if (mapping.gameObjectName == name)
{
return(mapping);
}
else if (@default == null && mapping.gameObjectName == UVMapping.AnyGameObjectName)
{
@default = mapping;
}
}
return(@default != null ? @default : UVMapping.DefaultMapping);
}
/// <summary>
/// Adds the vertices from <paramref name="mesh"/>, in regards to <paramref name="transform"/>'s local transformation.
/// The mesh must have at least one vertex.
/// </summary>
/// <param name="mesh">The mesh of which to add the vertices</param>
/// <param name="transform">The transform to consider</param>
private void AddVertices(Mesh mesh, Transform transform)
{
// Get vertices
int vertexIndexOffset = this.vertices.Count;
foreach (Vector3 vertex in mesh.vertices)
{
Vector3 absoluteVertex;
absoluteVertex = VariousCommon.LinearMultiply(vertex, transform.localScale);
absoluteVertex += transform.localPosition;
absoluteVertex = VariousCommon.RotateVectorAroundOrigin(absoluteVertex, transform.eulerAngles);
this.vertices.Add(absoluteVertex);
}
// Get triangles
int[] triangles = mesh.triangles;
for (int i = 0; i < triangles.Length; i++)
{
this.triangles.Add(triangles[i] + vertexIndexOffset);
}
// Get UV
Vector2[] uv = mesh.uv;
UVMapping uvMapping = this.uvMappings.GetMappingFor(transform.name);
for (int i = 0; i < uv.Length; i++)
{
Vector2 normalizedUV = VariousCommon.LinearDivide(
uv[i] - RoomMesh.cubeUVMapTopLeft,
RoomMesh.cubeUVMapBottomRight - RoomMesh.cubeUVMapTopLeft);
this.uv.Add(VariousCommon.LinearMultiply(normalizedUV, uvMapping.uv[i % uvMapping.uv.Length]));
}
}
