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engines/icb/common/px_globalvariables.h

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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.
+ *
+ * Additional copyright for this file:
+ * Copyright (C) 1999-2000 Revolution Software Ltd.
+ * This code is based on source code created by Revolution Software,
+ * used with permission.
+ *
+ * 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
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#ifndef ICB_PXGLOBALVARIABLES
+#define ICB_PXGLOBALVARIABLES
+
+#include "common/noncopyable.h"
+#include "engines/icb/common/px_common.h"
+#include "engines/icb/common/px_clu_api.h"
+
+namespace ICB {
+
+#define MAX_global_vars 256
+
+#define GLOBAL_VAR_NOT_SET (0)
+#define GLOBAL_VAR_SET (1)
+
+class CpxVariable {
+public:
+	uint32 hash;
+	int32 value;
+};
+
+class CpxGlobalScriptVariables : Common::NonCopyable {
+private:
+	CpxVariable m_vars[MAX_global_vars];
+
+	// This is not part of the CpxVariable class - because of memory packing reasons
+	uint8 m_varInit[MAX_global_vars];
+
+	uint32 m_no_vars;
+	uint32 m_sorted;
+
+public:
+	CpxGlobalScriptVariables();
+
+	void SortVariables();
+	int32 GetVariable(uint32 hash, const char *name = NULL, int32 warn = 1); // Get a variable by hash
+	int32 GetVariable(const char *n) {                                     // Get a variable
+		return GetVariable(EngineHashString(n), n);
+	}
+
+	void SetVariable(uint32, int32);           // Set a variable by hash
+	void SetVariable(const char *n, int32 i) { // Set a variable
+		SetVariable(EngineHashString(n), i);
+	}
+
+	void InitVariable(uint32, int32, const char *name = NULL); // First time initialise a variable by hash
+	void InitVariable(const char *n, int32 i) {                // First time initialise a variable
+		InitVariable(EngineHashString(n), i, n);
+	}
+
+	int32 FindVariable(uint32);         // is this variable taken
+	int32 FindVariable(const char *n) { // is this variable taken
+		return FindVariable(EngineHashString(n));
+	}
+
+	uint32 GetNoItems() { return (m_no_vars); }
+
+	const CpxVariable &operator[](uint32 n) { return (m_vars[n]); } // Return reference to variable itself (const)
+};
+
+} // End of namespace ICB
+
+#endif