public static TileSheet GenerateTileSheet(List <SpriteData> spritesList, PaletteData paletteData, int padding)
{
var widest = 0;
var tallest = 0;
foreach (var s in spritesList)
{
if (s.Width > widest)
{
widest = s.Width;
}
if (s.Height > tallest)
{
tallest = s.Height;
}
}
// Calculate number of rows and columns. We need this to be an even number for the shader to work
var rowCount = Mathf.CeilToInt(Mathf.Sqrt(spritesList.Count));
if (rowCount % 2 != 0)
{
rowCount++;
}
var w = rowCount * widest;
var h = rowCount * tallest;
w += rowCount * padding * 2;
h += rowCount * padding * 2;
var spriteSheet = new TileSheet();
spriteSheet.Texture = new Texture2D(w, h);
spriteSheet.Rows = rowCount;
spriteSheet.Columns = rowCount;
spriteSheet.TileWidth = widest;
spriteSheet.TileHeight = tallest;
spriteSheet.Padding = padding;
int index = 0;
foreach (var s in spritesList)
{
var tex = GenerateSprite(s, paletteData);
var destX = (widest + padding * 2) * (index % rowCount) + padding;
var destY = (tallest + padding * 2) * (index / rowCount) + padding;
var source = tex.GetPixels();
spriteSheet.Texture.SetPixels(destX, destY, tex.width, tex.height, source);
// Padding
for (var i = 1; i <= padding; i++)
{
for (var x = 0; x < tex.width; x++)
{
spriteSheet.Texture.SetPixel(destX + x, destY - i, tex.GetPixel(x, 0));
spriteSheet.Texture.SetPixel(destX + x, (destY + (tex.height - 1)) + i, tex.GetPixel(x, tex.height - 1));
}
for (var y = 0; y < tex.height; y++)
{
spriteSheet.Texture.SetPixel(destX - i, (destY) + y, tex.GetPixel(0, y));
spriteSheet.Texture.SetPixel((destX + (tex.width - 1)) + i, (destY) + y, tex.GetPixel(tex.width - 1, y));
}
}
for (var x = 0; x < padding; x++)
{
for (var y = 0; y < padding; y++)
{
spriteSheet.Texture.SetPixel((destX - padding) + x, (destY - 2) + y, tex.GetPixel(0, 0));
spriteSheet.Texture.SetPixel((destX + tex.width) + x, (destY - 2) + y, tex.GetPixel(tex.width - 1, 0));
spriteSheet.Texture.SetPixel((destX + tex.width) + x, (destY + tex.height) + y, tex.GetPixel(tex.width - 1, tex.height - 1));
spriteSheet.Texture.SetPixel((destX - padding) + x, (destY + tex.height) + y, tex.GetPixel(0, tex.height - 1));
}
}
spriteSheet.LookupTable.Add(s.Name, new TileSheetSprite()
{
TileNum = index,
Width = tex.width,
Height = tex.height
});
index++;
}
spriteSheet.Texture.Apply();
return(spriteSheet);
}
public static TileSheet GenerateWallTextureSheet(List <WallTextureData> textureList, Dictionary <string, SpriteData> patches, PaletteData paletteData, int padding)
{
var widest = 0;
var tallest = 0;
foreach (var t in textureList)
{
if (t.Width > widest)
{
widest = t.Width;
}
if (t.Height > tallest)
{
tallest = t.Height;
}
}
var largest = widest > tallest ? widest : tallest;
var rowCount = Mathf.CeilToInt(Mathf.Sqrt(textureList.Count));
if (rowCount % 2 != 0)
{
rowCount++;
}
var w = rowCount * largest;
var h = rowCount * largest;
w += rowCount * padding * 2;
h += rowCount * padding * 2;
var spriteSheet = new TileSheet();
spriteSheet.Rows = rowCount;
spriteSheet.Columns = rowCount;
spriteSheet.TileWidth = largest;
spriteSheet.TileHeight = largest;
spriteSheet.Padding = padding;
spriteSheet.Texture = new Texture2D(w, h);
int index = 0;
foreach (var t in textureList)
{
var tex = GenerateWallTexture(t, patches, paletteData);
var destX = (largest + padding * 2) * (index % rowCount) + padding;
var destY = (largest + padding * 2) * (index / rowCount) + padding;
//Debug.Log(t.Name);
var source = tex.GetPixels();
spriteSheet.Texture.SetPixels(destX, destY, tex.width, tex.height, source);
// Padding
for (var i = 1; i <= padding; i++)
{
for (var x = 0; x < tex.width; x++)
{
spriteSheet.Texture.SetPixel(destX + x, destY - i, tex.GetPixel(x, 0));
spriteSheet.Texture.SetPixel(destX + x, (destY + (tex.height - 1)) + i, tex.GetPixel(x, tex.height - 1));
}
for (var y = 0; y < tex.height; y++)
{
spriteSheet.Texture.SetPixel(destX - i, (destY) + y, tex.GetPixel(0, y));
spriteSheet.Texture.SetPixel((destX + (tex.width - 1)) + i, (destY) + y, tex.GetPixel(tex.width - 1, y));
}
}
for (var x = 0; x < padding; x++)
{
for (var y = 0; y < padding; y++)
{
spriteSheet.Texture.SetPixel((destX - padding) + x, (destY - 2) + y, tex.GetPixel(0, 0));
spriteSheet.Texture.SetPixel((destX + tex.width) + x, (destY - 2) + y, tex.GetPixel(tex.width - 1, 0));
spriteSheet.Texture.SetPixel((destX + tex.width) + x, (destY + tex.height) + y, tex.GetPixel(tex.width - 1, tex.height - 1));
spriteSheet.Texture.SetPixel((destX - padding) + x, (destY + tex.height) + y, tex.GetPixel(0, tex.height - 1));
}
}
spriteSheet.LookupTable.Add(t.Name, new TileSheetSprite()
{
TileNum = index,
Width = tex.width,
Height = tex.height
});
index++;
}
spriteSheet.Texture.Apply();
return(spriteSheet);
}