From 97ec70da939ace8fa7a076fa31f0d1548e489ba1 Mon Sep 17 00:00:00 2001
From: pixel <pixel>
Date: Thu, 13 Mar 2003 00:58:29 +0000
Subject: lock mouse effect

---
 include/engine.h |  3 +++
 lib/engine.cc    | 16 +++++++++++++++-
 2 files changed, 18 insertions(+), 1 deletion(-)

diff --git a/include/engine.h b/include/engine.h
index f950314..56c9279 100644
--- a/include/engine.h
+++ b/include/engine.h
@@ -22,6 +22,8 @@ namespace mogltk {
 	static int mouseY();
 	static int mousebuttons();
 	static double FPS();
+	static void lockmouse();
+	static void unlockmouse();
       private:
         static bool inited;
 	static bool postsetuped;
@@ -34,6 +36,7 @@ namespace mogltk {
 	static int frames;
 	static double curfps;
 	static Uint32 curticks;
+	static int locked;
 	static void updatemouse();
     };
 };
diff --git a/lib/engine.cc b/lib/engine.cc
index 2d53beb..53be179 100644
--- a/lib/engine.cc
+++ b/lib/engine.cc
@@ -5,7 +5,7 @@
 bool mogltk::engine::inited = false, mogltk::engine::postsetuped = false;
 bool mogltk::engine::appactive = false, mogltk::engine::cursorvisible = false, mogltk::engine::quitrequest = false;
 int mogltk::engine::mx, mogltk::engine::my, mogltk::engine::mbuttons;
-int mogltk::engine::frames;
+int mogltk::engine::frames, mogltk::engine::locked = 0;
 double mogltk::engine::curfps = -1;
 Uint32 mogltk::engine::curticks;
 
@@ -160,6 +160,11 @@ void mogltk::engine::pollevents() {
 	    break;
 	case SDL_MOUSEMOTION:
 	    printm(M_INFO, "Mouse slept over the screen - (%i, %i)\n", event.motion.x, event.motion.y);
+	    if (locked) {
+		if (!((event.motion.x == mx) && (event.motion.y == my))) {
+		    SDL_WrapMouse(mx, my);
+		}
+	    }
 	    if (cursorvisible)
 		hastoreturn = true;
 	    break;
@@ -217,3 +222,12 @@ int mogltk::engine::mousebuttons() {
 double mogltk::engine::FPS() {
     return curfps;
 }
+
+void mogltk::engine::lockmouse() {
+    locked = 1;
+}
+
+void mogltk::engine::unlockmouse() {
+    locked = 0;
+}
+
-- 
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