Change TSB generation to ensure that tile 0 is always reserved (because the game will seemingly render it as transparent no matter what)

Author: Olivercomet

EPFExplorer/src/FileTypes/mpbfile.cs

@@ -19,10 +19,8 @@ public class mpbfile
 
         public void Load()
         {
-
             //check for compression
 
-
             if (filebytes[0] == 0x11)
             {
                 Console.WriteLine("we will guess at LZ11 compression");

EPFExplorer/src/FileTypes/tsbfile.cs

@@ -15,11 +15,8 @@ public class tsbfile
 
         public int number_of_tiles;
 
-
-
         public void Load()
         {
-
             palette = new Color[256];   //create palette and fill it with the colours from the tsb
 
             for (int i = 0; i < 256; i++)

EPFExplorer/src/Forms/MPB_TSB_EditorForm.cs

@@ -35,6 +35,12 @@ public class Tile
 
             public bool hasSimilarTile = false;
             public Tile SimilarTile;    //the master tile that this one stores a reference to. (although this one can still have its own unique flipping etc)
+
+            public void fill8x8ImageWithAlphaColour() {
+                for (int i = 0; i < 64; i++) {
+                    tileImage[i] = 0; //where 0 is always the index of the alpha colour
+                }                        
+            }
         }
 
         public Dictionary<string, int> MPBFilesAndWidthsInTiles = new Dictionary<string, int>()
@@ -419,9 +425,12 @@ private void importFromPNG_Click(object sender, EventArgs e)
 
                 int pos = 0;
 
-
                 List<Tile> uniqueTiles = new List<Tile>();
 
+                Tile boilerplateAlphaTile = new Tile();
+                boilerplateAlphaTile.fill8x8ImageWithAlphaColour();
+                uniqueTiles.Add(boilerplateAlphaTile);
+
                 for (int y = 0; y < height_in_tiles; y++)
                 {
                     for (int x = 0; x < width_in_tiles; x++)
@@ -487,7 +496,6 @@ private void importFromPNG_Click(object sender, EventArgs e)
 
                 //now we should have a list of tiles, some of which are mirrors of each other if applicable
 
-
                 activeTsb.filebytes = new byte[0x200 + (uniqueTiles.Count * 64)];
 
                 //now write palette to tsb