Commented StairsTile.java

src/com/mojang/ld22/level/tile/StairsTile.java

@@ -5,20 +5,21 @@
 import com.mojang.ld22.level.Level;
 
 public class StairsTile extends Tile {
-	private boolean leadsUp;
+	private boolean leadsUp; // value to tell if the stairs lead up or not
 
 	public StairsTile(int id, boolean leadsUp) {
-		super(id);
-		this.leadsUp = leadsUp;
+		super(id); // assigns the id
+		this.leadsUp = leadsUp; // assigns the leadsUp value
 	}
 
+	/** Render method, draws sprites on the screen */
 	public void render(Screen screen, Level level, int x, int y) {
-		int color = Color.get(level.dirtColor, 000, 333, 444);
-		int xt = 0;
-		if (leadsUp) xt = 2;
-		screen.render(x * 16 + 0, y * 16 + 0, xt + 2 * 32, color, 0);
-		screen.render(x * 16 + 8, y * 16 + 0, xt + 1 + 2 * 32, color, 0);
-		screen.render(x * 16 + 0, y * 16 + 8, xt + 3 * 32, color, 0);
-		screen.render(x * 16 + 8, y * 16 + 8, xt + 1 + 3 * 32, color, 0);
+		int color = Color.get(level.dirtColor, 000, 333, 444); // the color of the stairs
+		int xt = 0; // the x tile position on the tile sheet
+		if (leadsUp) xt = 2; // if the stairs lead up, then move the x tile position over 2 times
+		screen.render(x * 16 + 0, y * 16 + 0, xt + 2 * 32, color, 0); // renders the top left part of the sprite
+		screen.render(x * 16 + 8, y * 16 + 0, xt + 1 + 2 * 32, color, 0); // renders the top right part of the sprite
+		screen.render(x * 16 + 0, y * 16 + 8, xt + 3 * 32, color, 0); // renders the bottom left part of the sprite
+		screen.render(x * 16 + 8, y * 16 + 8, xt + 1 + 3 * 32, color, 0); // renders the bottoms right part of the sprite
 	}
 }