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engines/got/game/script.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.
+ *
+ * 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 GOT_GAME_SCRIPT_H
+#define GOT_GAME_SCRIPT_H
+
+#include "got/data/defines.h"
+#include "got/gfx/gfx_pics.h"
+
+namespace Got {
+
+typedef void (*ScriptEndFn)();
+
+enum ScriptPause {
+    SCRIPT_READY, SCRIPT_PAUSED, SCRIPT_RESUMING
+};
+
+class Scripts {
+public:
+	Scripts();
+	~Scripts();
+
+	void executeScript(long index, const Gfx::Pics &speakerIcon, ScriptEndFn endFn = nullptr);
+	void pause();
+	void resume();
+	void setAskResponse(int option);
+	void runIfResuming();
+
+private:
+    ScriptEndFn _endFn = nullptr;
+    long  _numVar[26] = {};        // numeric variables
+    char  _strVar[26][81] = {};    // string vars
+    char  _lineLabel[32][9] = {};  // line label look up table
+    char  *_linePtr[32] = {};      // line label pointers
+    char  *_newPtr = nullptr;
+    int   _numLabels = 0;          // number of labels
+    char  *_gosubStack[32] = {};   // stack for GOSUB return addresses
+    int   _gosubPtr = 0;           // GOSUB stack pointer
+    char  *_forStack[11] = {};     // FOR stack
+    long  _forVal[11] = {};        // current FOR value
+    int8  _forVar[11] = {};        // ending FOR value (target var)
+    int8  _forPtr = 0;	           // FOR stack pointer
+    char  *_buffPtr = nullptr;     // pointer to current command
+    char  *_buffEnd = nullptr;	   // pointer to end of buffer
+    char  *_buffer = nullptr;      // buffer space (alloc'ed)
+    long  _scrIndex = 0;
+    Gfx::Pics _scrPic;
+    long  _lValue = 0;
+    long  _lTemp = 0;
+    char  _tempS[255] = {};
+    ScriptPause _paused = SCRIPT_READY;
+    int _askVar = -1;
+
+private:
+    int  readScriptFile();
+    void scriptError(int err_num);
+    int  getCommand();
+    int  skipColon();
+    int  calcValue();
+    int  getNextValue();
+    int  calcString(int mode);
+    void getStr();
+    int  getInternalVariable();
+    int  execCommand(int num);
+    int getLine(char *src, char *dst);
+    void scriptEntry() {}
+    void scriptExit();
+
+    int cmd_goto();
+    int cmd_if();
+    int cmd_run();
+    int cmd_addJewels();
+    int cmd_addHealth();
+    int cmd_addMagic();
+    int cmd_addKeys();
+    int cmd_addScore();
+    int cmd_say(int mode, int type);
+    int cmd_ask();
+    int cmd_sound();
+    int cmd_setTile();
+    int cmd_itemGive();
+    int cmd_itemTake();
+    int cmd_setFlag();
+    int cmd_ltoa();
+    int cmd_pause();
+    int cmd_visible();
+    int cmd_random();
+    int cmd_exec();
+
+    void scr_func1();
+    void scr_func2();
+    void scr_func3();
+    void scr_func4();
+    void scr_func5();
+
+    typedef void (Scripts:: *ScrFunction)();
+    static ScrFunction scr_func[5];
+
+    void runScript(bool firstTime = true);
+    void scriptLoop();
+
+};
+
+extern void executeScript(long index, const Gfx::Pics &speakerIcon,
+                           ScriptEndFn endFn = nullptr);
+
+} // namespace Got
+
+#endif