From a77ed90618664e50705b3e59dd2111faec2f5f39 Mon Sep 17 00:00:00 2001
From: Paul Gilbert
Date: Thu, 6 Mar 2014 22:31:41 -0500
Subject: MADS: Implementing support methods needed for scene 804
 initialisation

---
 engines/mads/msurface.cpp | 13 +++++++++++++
 1 file changed, 13 insertions(+)

(limited to 'engines/mads/msurface.cpp')

diff --git a/engines/mads/msurface.cpp b/engines/mads/msurface.cpp
index 754fea851d..74043bf91f 100644
--- a/engines/mads/msurface.cpp
+++ b/engines/mads/msurface.cpp
@@ -497,4 +497,17 @@ MSurface *MSurface::flipHorizontal() const {
 	return dest;
 }
 
+/*------------------------------------------------------------------------*/
+
+int DepthSurface::getDepth(const Common::Point &pt) {
+
+	if (_vm->_game->_scene._sceneInfo->_depthStyle == 2) {
+		int bits = (3 - (pt.x % 4)) * 2;
+		byte v = *getBasePtr(pt.x >> 2, pt.y);
+		return v >> bits;
+	} else {
+		return *getBasePtr(pt.x, pt.y) & 0xF;
+	}
+}
+
 } // End of namespace MADS
-- 
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