// Start is called before the first frame update
void Start()
{
EntityManager entityManager = World.Active.EntityManager;
EntityArchetype harvestableComponent = entityManager.CreateArchetype(
typeof(HarvestableComponent),
typeof(Translation),
typeof(RenderMesh),
typeof(LocalToWorld)
);
Tilemap tilemap = GetComponent <Tilemap>();
foreach (var pos in tilemap.cellBounds.allPositionsWithin)
{
Vector3Int localPlace = new Vector3Int(pos.x, pos.y, pos.z);
Vector3 place = tilemap.CellToWorld(localPlace);
if (tilemap.HasTile(localPlace))
{
TileBase tile = tilemap.GetTile(localPlace);
Material tileMat = new Material(Shader.Find("Unlit/Transparent"));
Sprite tileSprite = Resources.Load <Sprite>("Sprites/TileSprites/" + tile.name);
tileMat.mainTexture = tileSprite.texture;
int width = 1;
int height = 1;
Mesh tileMesh = new Mesh();
// Setup vertices
Vector3[] newVertices = new Vector3[4];
float halfHeight = height * 0.5f;
float halfWidth = width * 0.5f;
newVertices [0] = new Vector3(-halfWidth, -halfHeight, 0);
newVertices [1] = new Vector3(-halfWidth, halfHeight, 0);
newVertices [2] = new Vector3(halfWidth, -halfHeight, 0);
newVertices [3] = new Vector3(halfWidth, halfHeight, 0);
// Setup UVs
Vector2[] newUVs = new Vector2[newVertices.Length];
newUVs [0] = new Vector2(0, 0);
newUVs [1] = new Vector2(0, 1);
newUVs [2] = new Vector2(1, 0);
newUVs [3] = new Vector2(1, 1);
// Setup triangles
int[] newTriangles = new int[] { 0, 1, 2, 3, 2, 1 };
// Setup normals
Vector3[] newNormals = new Vector3[newVertices.Length];
for (int i = 0; i < newNormals.Length; i++)
{
newNormals [i] = Vector3.forward;
}
// Create quad
tileMesh.vertices = newVertices;
tileMesh.uv = newUVs;
tileMesh.triangles = newTriangles;
tileMesh.normals = newNormals;
Entity entity = entityManager.CreateEntity(harvestableComponent);
entityManager.SetSharedComponentData(entity, new RenderMesh {
material = tileMat,
mesh = tileMesh
});
// pivot of the sprite is center so we have to add 0.5 to x and y
entityManager.SetComponentData(entity, new Translation {
Value = new float3(place.x + 0.5f, place.y + 0.5f, -1)
});
int tileNo = int.Parse(tile.name.Substring(tile.name.LastIndexOf('_') + 1));
HarvestableType type = HarvestableData.getHarvestableType(tileNo);
entityManager.SetComponentData(entity, new HarvestableComponent {
type = type,
ressourceAmount = type.Equals(HarvestableType.WOOD) ? 50 : 20000
});
}
}
// delete all tiles because we replaced them with entities
tilemap.ClearAllTiles();
}
