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Update TileMeshQuadGridBehaviour.cs #12

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18 changes: 9 additions & 9 deletions Assets/Plugins/TileMap/TileMeshQuadGridBehaviour.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -8,6 +8,7 @@ namespace UnityTileMap
/// </summary>
public class TileMeshQuadGridBehaviour : TileMeshBehaviour
{
private Vector2[] _uv;
public override void SetTile(int x, int y, Sprite sprite)
{
// TODO should be flagged in inspector when sprites are set up
Expand All @@ -26,15 +27,14 @@ private void SetTile(int quadIndex, Sprite sprite)
// TODO seems like i cant modify the uv coordinates in place

quadIndex *= 4;
var uv = GetComponent<MeshFilter>().sharedMesh.uv;
var r = sprite.textureRect;

// assign four uv coordinates to change the texture of one tile (one quad, two triangels)
uv[quadIndex] = ToUv(new Vector2(r.xMin, r.yMin), sprite.texture);
uv[quadIndex + 1] = ToUv(new Vector2(r.xMax, r.yMin), sprite.texture);
uv[quadIndex + 2] = ToUv(new Vector2(r.xMin, r.yMax), sprite.texture);
uv[quadIndex + 3] = ToUv(new Vector2(r.xMax, r.yMax), sprite.texture);
GetComponent<MeshFilter>().sharedMesh.uv = uv;
_uv[quadIndex] = ToUv(new Vector2(r.xMin, r.yMin), sprite.texture);
_uv[quadIndex + 1] = ToUv(new Vector2(r.xMax, r.yMin), sprite.texture);
_uv[quadIndex + 2] = ToUv(new Vector2(r.xMin, r.yMax), sprite.texture);
_uv[quadIndex + 3] = ToUv(new Vector2(r.xMax, r.yMax), sprite.texture);
GetComponent<MeshFilter>().sharedMesh.uv = _uv;
}

protected override Mesh CreateMesh()
Expand All @@ -47,7 +47,7 @@ protected override Mesh CreateMesh()
var vertices = new Vector3[quads * 4];
var triangles = new int[quads * 6];
var normals = new Vector3[vertices.Length];
var uv = new Vector2[vertices.Length];
_uv = new Vector2[vertices.Length];

for (int y = 0; y < tilesY; y++)
{
Expand Down Expand Up @@ -82,15 +82,15 @@ protected override Mesh CreateMesh()
for (int i = 0; i < vertices.Length; i++)
{
normals[i] = Vector3.forward;
uv[i] = Vector2.zero; // uv are set by assigning a tile
_uv[i] = Vector2.zero; // uv are set by assigning a tile
}

var mesh = new Mesh
{
vertices = vertices,
triangles = triangles,
normals = normals,
uv = uv,
uv = _uv,
name = "TileMapMesh"
};
return mesh;
Expand Down