public static MeshObject Tetrahedron(Vector3 position, float radius, AsciiTexture texture)
{
List <Triangle> triangles = new List <Triangle>();
float sqrt2 = (float)Math.Sqrt(2);
float sqrt3 = (float)Math.Sqrt(3);
Vector3 up = radius * Vector3.Up;
Vector3 v0 = radius * new Vector3(0f, -1f / 3f, 2f * sqrt2 / 3f);
Vector3 v1 = radius * new Vector3(-sqrt2 / sqrt3, -1f / 3f, 1 - sqrt2);
Vector3 v2 = radius * new Vector3(sqrt2 / sqrt3, -1f / 3f, 1 - sqrt2);
Vector2 uv0 = new Vector2(0.5f, 0f);
Vector2 uv1 = new Vector2(0.25f, 0.25f * sqrt3);
Vector2 uv2 = new Vector2(0.75f, 0.25f * sqrt3);
Vector2 uvup0 = new Vector2(0.5f, 0.5f * sqrt3);
Vector2 uvup1 = new Vector2(1f, 0f);
Vector2 uvup2 = new Vector2(0f, 0f);
triangles.Add(new Triangle(v0, v1, v2, texture, uv0, uv1, uv2));
triangles.Add(new Triangle(up, v0, v2, texture, uvup1, uv0, uv2));
triangles.Add(new Triangle(up, v1, v0, texture, uvup2, uv1, uv0));
triangles.Add(new Triangle(up, v2, v1, texture, uvup0, uv2, uv1));
return(new MeshObject(triangles, position, 0f));
}
// More reflection hacks -- starting to feel bad about it xD
public static void LoadAssets(ContentManager content)
{
// Gather all Assets fields
FieldInfo[] fields = typeof(Assets).GetFields();
MethodInfo loadMethodInfo = content.GetType().GetMethod("Load"); // Content.Load method
foreach (FieldInfo field in fields)
{
string path = field.GetCustomAttribute <AssetPathAttribute>().Path;
Type type = field.FieldType;
if (type == typeof(AsciiTexture))
{
type = typeof(Texture2D);
}
// Execute Content.Load with appropriate generic argument
object result = loadMethodInfo.MakeGenericMethod(type).Invoke(content, new object[] { path });
if (field.FieldType == typeof(AsciiTexture))
{
result = new AsciiTexture((Texture2D)result);
}
field.SetValue(path, result);
}
}
public Triangle(Vector3 v0, Vector3 v1, Vector3 v2, AsciiTexture texture, Vector2 uv0, Vector2 uv1, Vector2 uv2)
{
V0 = v0;
V1 = v1;
V2 = v2;
UV0 = uv0;
UV1 = uv1;
UV2 = uv2;
Texture = texture;
Normal = Vector3.Cross(v1 - v0, v2 - v0);
}
public MeshObject(OBJFile objFile, AsciiTexture texture, Vector3 position)
{
Position = position;
triangles = new List <Triangle>();
for (int i = 0; i < objFile.triangleVertices.Length; i += 3)
{
Vector3 v0 = objFile.vertices[objFile.triangleVertices[i]];
Vector3 v1 = objFile.vertices[objFile.triangleVertices[i + 1]];
Vector3 v2 = objFile.vertices[objFile.triangleVertices[i + 2]];
Vector2 uv0 = objFile.texcoords[objFile.triangleTexcoords[i]];
Vector2 uv1 = objFile.texcoords[objFile.triangleTexcoords[i + 1]];
Vector2 uv2 = objFile.texcoords[objFile.triangleTexcoords[i + 2]];
triangles.Add(new Triangle(v0, v1, v2, texture, uv0, uv1, uv2));
}
}
public static Triangle Load(BinaryReader reader)
{
Vector3 v0 = GameSave.ReadVector3(reader);
Vector3 v1 = GameSave.ReadVector3(reader);
Vector3 v2 = GameSave.ReadVector3(reader);
Vector2 uv0 = GameSave.ReadVector2(reader);
Vector2 uv1 = GameSave.ReadVector2(reader);
Vector2 uv2 = GameSave.ReadVector2(reader);
Vector3 normal = GameSave.ReadVector3(reader);
int id = reader.ReadInt32();
return(new Triangle(v0, v1, v2, AsciiTexture.GetByID(id), uv0, uv1, uv2));
}
public static MeshObject Octahedron(Vector3 position, float radius, AsciiTexture texture)
{
List <Triangle> triangles = new List <Triangle>();
Vector3 f = radius * Vector3.Forward;
Vector3 b = radius * Vector3.Backward;
Vector3 l = radius * Vector3.Left;
Vector3 r = radius * Vector3.Right;
Vector3 u = radius * Vector3.Up;
Vector3 d = radius * Vector3.Down;
triangles.Add(new Triangle(r, f, u, texture, new Vector2(1f, 0.5f), new Vector2(0.5f, 0f), new Vector2(0.5f, 0.5f)));
triangles.Add(new Triangle(b, r, u, texture, new Vector2(0.5f, 1f), new Vector2(1f, 0.5f), new Vector2(0.5f, 0.5f)));
triangles.Add(new Triangle(l, b, u, texture, new Vector2(0f, 0.5f), new Vector2(0.5f, 1f), new Vector2(0.5f, 0.5f)));
triangles.Add(new Triangle(f, l, u, texture, new Vector2(0.5f, 0f), new Vector2(0f, 0.5f), new Vector2(0.5f, 0.5f)));
triangles.Add(new Triangle(f, r, d, texture, new Vector2(0.5f, 0f), new Vector2(1f, 0.5f), new Vector2(0.5f, 0.5f)));
triangles.Add(new Triangle(r, b, d, texture, new Vector2(1f, 0.5f), new Vector2(0.5f, 1f), new Vector2(0.5f, 0.5f)));
triangles.Add(new Triangle(b, l, d, texture, new Vector2(0.5f, 1f), new Vector2(0f, 0.5f), new Vector2(0.5f, 0.5f)));
triangles.Add(new Triangle(l, f, d, texture, new Vector2(0f, 0.5f), new Vector2(0.5f, 0f), new Vector2(0.5f, 0.5f)));
return(new MeshObject(triangles, position, 0f));
}
public Triangle(Vector3 v0, Vector3 v1, Vector3 v2, AsciiTexture texture) : this(v0, v1, v2, texture, Vector2.Zero, Vector2.Zero, Vector2.Zero)
{
}
private static void Register(AsciiTexture asciiTexture)
{
asciiTexture.ID = textures.Count;
textures.Add(asciiTexture);
}
