Initial commit

engines/saga2/tower.cpp

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+/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * aint32 with this program; if not, write to the Free Software
+ *
+ *
+ * Based on the original sources
+ *   Faery Tale II -- The Halls of the Dead
+ *   (c) 1993-1996 The Wyrmkeep Entertainment Co.
+ */
+
+#include "common/debug.h"
+
+#include "saga2/saga2.h"
+#include "saga2/tower.h"
+
+namespace Saga2 {
+
+/* ===================================================================== *
+   Imports
+ * ===================================================================== */
+
+extern int maxInitState;
+extern TowerLayer tower[];
+void SystemEventLoop();
+
+/* ===================================================================== *
+   Locals
+ * ===================================================================== */
+
+static int initializationState;
+
+/* ===================================================================== *
+   Code
+ * ===================================================================== */
+
+// ------------------------------------------------------------------------
+// Find the appropriate init/term pair
+
+static int32 getTowerLayer(int is) {
+	for (int32 i = 0; i < maxInitState; i++)
+		if (tower[i].ord == is)
+			return (i);
+	return 0;
+}
+
+static bool initTowerLayer(int is) {
+	bool r;
+
+	r = tower[is].init();
+
+	return r;
+}
+
+static void termTowerLayer(int is) {
+	tower[is].term();
+}
+
+
+
+// ------------------------------------------------------------------------
+// Tower Builder
+
+INITIALIZER(programInit) {
+	for (initializationState = 0; initializationState < maxInitState;) {
+		int32 tLevel = getTowerLayer(initializationState);
+		bool r = false;
+		SystemEventLoop();
+		r = initTowerLayer(tLevel);
+
+		if (r) {
+			setInitState(initializationState + 1);
+		} else {
+			error("Tower Initialization Step %d Failed (record %d)", initializationState, tLevel);
+			return false;
+		}
+	}
+	return true;
+}
+
+// ------------------------------------------------------------------------
+// Tower Destroyer
+
+TERMINATOR(programTerm) {
+	while (initializationState > 0) {
+		setInitState(initializationState - 1);
+		int32 tLevel = getTowerLayer(initializationState);
+		termTowerLayer(tLevel);
+	}
+}
+
+
+// ------------------------------------------------------------------------
+// Null Builder
+
+INITIALIZER(initTowerBase) {
+	return true;
+}
+
+// ------------------------------------------------------------------------
+// Null Destroyer
+
+TERMINATOR(termTowerBase) {
+}
+
+// ------------------------------------------------------------------------
+// This pair should be the first thing in the tower list
+
+INITIALIZER(initErrorManagers) {
+	return true;
+}
+
+TERMINATOR(termErrorManagers) {
+}
+
+// ------------------------------------------------------------------------
+// This pair should be used before the display is initialized
+
+INITIALIZER(initDelayedErrors) {
+	return true;
+}
+
+TERMINATOR(termDelayedErrors) {
+}
+
+// ------------------------------------------------------------------------
+// This pair should be used once everything is working
+
+INITIALIZER(initActiveErrors) {
+	return true;
+}
+
+TERMINATOR(termActiveErrors) {
+}
+
+
+// ------------------------------------------------------------------------
+// State transition hooks
+
+int initState() {
+	return initializationState;
+}
+
+void setInitState(int i) {
+	initializationState = i;
+
+	debugC(1, kDebugInit, "Init state %d", i);
+	if (i == maxInitState)
+		debugC(1, kDebugInit, "INITIALIZATION COMPLETE");
+}
+
+} // end of namespace Saga2