public void UndrawTile(Vector3 position)
{
mesh = GridBase.GetMesh();
Vector3[] verts = mesh.vertices;
int[] tris = mesh.GetTriangles(0);
Vector2[] uv = mesh.uv;
int indexToRemove = FindTileIndex(verts, position);
if (indexToRemove >= 0)
{
verts = verts.Where((val, idx) =>
idx != indexToRemove &&
idx != indexToRemove + 1 &&
idx != indexToRemove + 2 &&
idx != indexToRemove + 3
).ToArray();
int trisIndexToRemove = indexToRemove / 4 * 6;
tris = tris.Where((val, idx) =>
idx != trisIndexToRemove &&
idx != trisIndexToRemove + 1 &&
idx != trisIndexToRemove + 2 &&
idx != trisIndexToRemove + 3 &&
idx != trisIndexToRemove + 4 &&
idx != trisIndexToRemove + 5
).ToArray();
tris = RearrangeTris(indexToRemove + 4, tris);
uv = uv.Where((val, idx) =>
idx != indexToRemove &&
idx != indexToRemove + 1 &&
idx != indexToRemove + 2 &&
idx != indexToRemove + 3
).ToArray();
ClearMesh();
mesh.vertices = verts;
mesh.triangles = tris;
mesh.uv = uv;
GridBase.SetMesh(mesh);
}
}
public void DrawTile(Vector3 position)
{
mesh = GridBase.GetMesh();
int vertsIndex = mesh.vertices.Length;
Vector3[] newVerts = mesh.vertices;
System.Array.Resize(ref newVerts, vertsIndex + 4);
newVerts[vertsIndex] = new Vector3(position.x + offset, position.y + GridBase.Instance.yOffset, position.z + offset);
newVerts[vertsIndex + 1] = new Vector3(position.x + offset, position.y + GridBase.Instance.yOffset, position.z - offset);
newVerts[vertsIndex + 2] = new Vector3(position.x - offset, position.y + GridBase.Instance.yOffset, position.z + offset);
newVerts[vertsIndex + 3] = new Vector3(position.x - offset, position.y + GridBase.Instance.yOffset, position.z - offset);
int trisIndex = mesh.triangles.Length;
int[] newTris = mesh.triangles;
System.Array.Resize(ref newTris, trisIndex + 6);
newTris[trisIndex] = vertsIndex;
newTris[trisIndex + 1] = vertsIndex + 1;
newTris[trisIndex + 2] = vertsIndex + 2;
newTris[trisIndex + 3] = vertsIndex + 3;
newTris[trisIndex + 4] = vertsIndex + 2;
newTris[trisIndex + 5] = vertsIndex + 1;
int uvIndex = mesh.uv.Length;
Vector2[] newUv = mesh.uv;
System.Array.Resize(ref newUv, uvIndex + 4);
newUv[uvIndex] = Vector2.one;
newUv[uvIndex + 1] = Vector2.right;
newUv[uvIndex + 2] = Vector2.up;
newUv[uvIndex + 3] = Vector2.zero;
mesh.vertices = newVerts;
mesh.triangles = newTris;
mesh.uv = newUv;
GridBase.SetMesh(mesh);
}
public void ClearMesh()
{
GridBase.GetMesh().Clear();
}