Merge pull request #903 from segrax/Fix_4112

SCUMM: Fix bug #4112 (MANIAC: Power never returns)

1 files changed, 24 insertions, 11 deletions

diff --git a/engines/scumm/script_v2.cpp b/engines/scumm/script_v2.cpp
index 756e0b44de..8160c5e30a 100644
--- a/engines/scumm/script_v2.cpp
+++ b/engines/scumm/script_v2.cpp
@@ -31,6 +31,10 @@
 
 namespace Scumm {
 
+    // Helper functions for ManiacMansion workarounds
+#define MM_SCRIPT(script)  (script + (_game.version == 0 ? 0 : 5))
+#define MM_VALUE(v0,v1)    (_game.version == 0 ? v0 : v1)
+
 #define OPCODE(i, x)	_opcodes[i]._OPCODE(ScummEngine_v2, x)
 
 void ScummEngine_v2::setupOpcodes() {
@@ -1178,13 +1182,8 @@ void ScummEngine_v2::o2_startScript() {
 	// (which makes Ted go answer the door bell) is simply ignored. This
 	// way, the door bell still chimes, but Ted ignores it.
 	if (_game.id == GID_MANIAC) {
-		if (_game.version >= 1 && script == 87) {
-			if (isScriptRunning(88) || isScriptRunning(89))
-				return;
-		}
-		// Script numbers are different in V0
-		if (_game.version == 0 && script == 82) {
-			if (isScriptRunning(83) || isScriptRunning(84))
+		if (script == MM_SCRIPT(82)) {
+			if (isScriptRunning(MM_SCRIPT(83)) || isScriptRunning(MM_SCRIPT(84)))
 				return;
 		}
 	}
@@ -1193,14 +1192,28 @@ void ScummEngine_v2::o2_startScript() {
 }
 
 void ScummEngine_v2::stopScriptCommon(int script) {
+    
+    // WORKAROUND bug #4112: If you enter the lab while Dr. Fred has the powered turned off
+    // to repair the Zom-B-Matic, the script will be stopped and the power will never turn
+    // back on. This fix forces the power on, when the player enters the lab, 
+    // if the script which turned it off is running
+    if (_game.id == GID_MANIAC && _roomResource == 4 && isScriptRunning(MM_SCRIPT(138))) {
+
+        if (vm.slot[_currentScript].number == MM_VALUE(130, 163)) {
+
+            if (script == MM_SCRIPT(138)) {
+
+                int obj = MM_VALUE(124, 157);
+                putState(obj, getState(obj) & ~kObjectState_08);
+            }
+        }
+    }
+
 	if (_game.id == GID_MANIAC && _roomResource == 26 && vm.slot[_currentScript].number == 10001) {
 	// FIXME: Nasty hack for bug #915575
 	// Don't let the exit script for room 26 stop the script (116), when
 	// switching to the dungeon (script 89)
-		if (_game.version >= 1 && script == 116 && isScriptRunning(89))
-			return;
-		// Script numbers are different in V0
-		if (_game.version == 0 && script == 111 && isScriptRunning(84))
+		if (script == MM_SCRIPT(111) && isScriptRunning(MM_SCRIPT(84)))
 			return;
 	}