Fixed sprite rendering bug and death animations

Signed-off-by: Hans Kokx <hans.d.kokx@gmail.com>

packages/wolf_3d_dart/lib/src/data/wl_parser.dart

@@ -214,7 +214,18 @@ abstract class WLParser {
     int leftPix = vswap.getUint16(offset, Endian.little);
     int rightPix = vswap.getUint16(offset + 2, Endian.little);
 
+    // --- SAFETY CHECK ---
+    // If the bounds are outside 0-63, this is a dummy or corrupted chunk.
+    if (leftPix < 0 ||
+        leftPix > 63 ||
+        rightPix < 0 ||
+        rightPix > 63 ||
+        leftPix > rightPix) {
+      return sprite;
+    }
+
     for (int x = leftPix; x <= rightPix; x++) {
+      // REVERTED to your original, correct math!
       int colOffset = vswap.getUint16(
         offset + 4 + ((x - leftPix) * 2),
         Endian.little,
@@ -238,12 +249,17 @@ abstract class WLParser {
       if (endY == 0) break;
       endY ~/= 2;
 
-      int pixelOfs = vswap.getUint16(cmdOffset + 2, Endian.little);
+      // THE FIX: This MUST be a signed integer (getInt16) to handle DOS wraparound
+      int pixelOfs = vswap.getInt16(cmdOffset + 2, Endian.little);
+
       int startY = vswap.getUint16(cmdOffset + 4, Endian.little);
       startY ~/= 2;
 
-      for (int y = startY; y < endY; y++) {
-        // Write directly to the 1D array
+      // Keep the safety clamps for retail version
+      int safeStartY = startY.clamp(0, 63);
+      int safeEndY = endY.clamp(0, 64);
+
+      for (int y = safeStartY; y < safeEndY; y++) {
         sprite.pixels[x * 64 + y] = vswap.getUint8(baseOffset + pixelOfs + y);
       }