From 6e2e862d8e5db0c8e786525fff2e2ae1f878f919 Mon Sep 17 00:00:00 2001
From: Colin Snover
Date: Tue, 2 Aug 2016 09:49:04 -0500
Subject: SCI32: Implement kShakeScreen for SCI32

---
 engines/sci/graphics/frameout.cpp | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

(limited to 'engines/sci/graphics/frameout.cpp')

diff --git a/engines/sci/graphics/frameout.cpp b/engines/sci/graphics/frameout.cpp
index 4bd7b46914..c0d8f15c74 100644
--- a/engines/sci/graphics/frameout.cpp
+++ b/engines/sci/graphics/frameout.cpp
@@ -1274,6 +1274,30 @@ void GfxFrameout::showRect(const Common::Rect &rect) {
 	}
 }
 
+void GfxFrameout::shakeScreen(int16 numShakes, const ShakeDirection direction) {
+	if (direction & kShakeHorizontal) {
+		// Used by QFG4 room 750
+		warning("TODO: Horizontal shake not implemented");
+		return;
+	}
+
+	while (numShakes--) {
+		if (direction & kShakeVertical) {
+			g_system->setShakePos(_isHiRes ? 8 : 4);
+		}
+
+		g_system->updateScreen();
+		g_sci->getEngineState()->wait(3);
+
+		if (direction & kShakeVertical) {
+			g_system->setShakePos(0);
+		}
+
+		g_system->updateScreen();
+		g_sci->getEngineState()->wait(3);
+	}
+}
+
 #pragma mark -
 #pragma mark Mouse cursor
 
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