CGE2: Implement snGhost().

Also implement Sprite::ghost().

2 files changed, 18 insertions, 7 deletions

diff --git a/engines/cge2/snail.cpp b/engines/cge2/snail.cpp
index d92862a1ed..ede6206d1f 100644
--- a/engines/cge2/snail.cpp
+++ b/engines/cge2/snail.cpp
@@ -521,7 +521,12 @@ void CGE2Engine::snRoom(Sprite *spr, int val) {
 }
 
 void CGE2Engine::snGhost(Bitmap *bmp) {
-	warning("STUB: CGE2Engine::snGhost()");
+	V2D p(this, *bmp->_v & 0xFFFF, *bmp->_v >> 16);
+	bmp->hide(p.x, p.y);
+	delete bmp->_b;
+	bmp->_v = nullptr;
+	bmp->_b = nullptr;
+	delete bmp;
 }
 
 void CGE2Engine::hide1(Sprite *spr) {
diff --git a/engines/cge2/vga13h.cpp b/engines/cge2/vga13h.cpp
index 97a31bbb69..98daf56f3d 100644
--- a/engines/cge2/vga13h.cpp
+++ b/engines/cge2/vga13h.cpp
@@ -606,12 +606,18 @@ void Sprite::hide() {
 BitmapPtr Sprite::ghost() {
 	SprExt *e = _ext;
 	if (!e->_b1)
-		return NULL;
-
-	BitmapPtr bmp = new Bitmap(_vm, 0, 0, (uint8 *)NULL);
-	assert(bmp != NULL);
-
-	warning("STUB: Sprite::ghost()");
+		return nullptr;
+
+	BitmapPtr bmp = new Bitmap(_vm, 0, 0, (uint8 *)nullptr);
+	assert(bmp != nullptr);
+	bmp->_w = e->_b1->_w;
+	bmp->_h = e->_b1->_h;
+	bmp->_b = new HideDesc[bmp->_h];
+	assert(bmp->_b != nullptr);
+	memcpy(bmp->_b, e->_b1->_b, sizeof(HideDesc)* bmp->_h);
+	uint8 *v = new uint8;
+	*v = (e->_p1.y << 16) + e->_p1.x;
+	bmp->_v = v;
 
 	return bmp;
 }