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engines/toltecs/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 TOLTECS_SCRIPT_H
+#define TOLTECS_SCRIPT_H
+
+#include "common/func.h"
+
+namespace Toltecs {
+
+const int kMaxScriptSlots = 50;
+const int kScriptStackSize = 4096 + 4;
+
+enum VarType {
+	vtByte,
+	vtWord
+};
+
+typedef Common::Functor0<void> ScriptFunction;
+
+class ScriptInterpreter {
+public:
+	ScriptInterpreter(ToltecsEngine *vm);
+	~ScriptInterpreter();
+
+	void loadScript(uint resIndex, uint slotIndex);
+	void setMainScript(uint slotIndex);
+	void runScript();
+
+	byte *getSlotData(int slotIndex) const { return _slots[slotIndex].data; }
+
+	int16 getGameVar(uint variable);
+	void setGameVar(uint variable, int16 value);
+
+	void saveState(Common::WriteStream *out);
+	void loadState(Common::ReadStream *in);
+
+	void setSwitchLocalDataNear(bool newValue) { _switchLocalDataNear = newValue; }
+
+protected:
+
+	struct ScriptRegs {
+		int16 reg0;
+		int16 reg1;
+		int16 reg2;
+		int16 reg3;
+		int16 reg4;
+		int16 reg5;
+		int16 reg6;
+		int16 sp;
+		int16 reg8;
+	};
+
+	struct ScriptSlot {
+		byte *data;
+		int32 size;
+		uint resIndex;
+	};
+
+	ToltecsEngine *_vm;
+	Common::Array<const ScriptFunction *> _scriptFuncs;
+	Common::Array<const char *> _scriptFuncNames;
+
+	byte *_stack;
+
+	byte *_code, *_subCode, *_codeStart;
+	byte *_localData;
+	bool _switchLocalDataNear, _switchLocalDataFar, _switchLocalDataToStack;
+	bool _cmpBitTest;
+
+	ScriptSlot _slots[kMaxScriptSlots];
+
+	ScriptRegs _regs;
+	int16 _savedSp;
+
+	byte readByte();
+	int16 readInt16();
+
+	void execOpcode(byte opcode);
+
+	void setupScriptFunctions();
+	void execScriptFunction(uint16 index);
+
+	byte arg8(int16 offset);
+	int16 arg16(int16 offset);
+
+	void pushInt16(int16 value);
+	int16 popInt16();
+
+	void localWrite8(int16 offset, byte value);
+	byte localRead8(int16 offset);
+	void localWrite16(int16 offset, int16 value);
+	int16 localRead16(int16 offset);
+	byte *localPtr(int16 offset);
+
+	void sfNop();
+	void sfGetGameVar();
+	void sfSetGameVar();
+	void sfUpdateScreen();
+	void sfGetRandomNumber();
+	void sfDrawGuiTextMulti();
+	void sfUpdateVerbLine();
+	void sfSetFontColor();
+	void sfGetTalkTextDuration();
+	void sfTalk();
+	void sfFindPaletteFragment();
+	void sfClearPaletteFragments();
+	void sfAddPaletteFragment();
+	void sfSetDeltaAnimPalette();
+	void sfSetUnkPaletteEffect();
+	void sfBuildColorTransTable();
+	void sfSetDeltaMainPalette();
+	void sfLoadScript();
+	void sfRegisterFont();
+	void sfLoadAddPalette();
+	void sfLoadScene();
+	void sfSetGuiHeight();
+	void sfFindMouseInRectIndex1();
+	void sfFindMouseInRectIndex2();
+	void sfDrawGuiImage();
+	void sfAddAnimatedSpriteNoLoop();
+	void sfAddAnimatedSprite();
+	void sfAddStaticSprite();
+	void sfAddAnimatedSpriteScaled();
+	void sfFindPath();
+	void sfWalk();
+	void sfScrollCameraUp();
+	void sfScrollCameraDown();
+	void sfScrollCameraLeft();
+	void sfScrollCameraRight();
+	void sfScrollCameraUpEx();
+	void sfScrollCameraDownEx();
+	void sfScrollCameraLeftEx();
+	void sfScrollCameraRightEx();
+	void sfSetCamera();
+	void sfGetCameraChanged();
+	void sfGetRgbModifiertAtPoint();
+	void sfStartAnim();
+	void sfAnimNextFrame();
+	void sfGetAnimFrameNumber();
+	void sfGetAnimStatus();
+	void sfStartShakeScreen();
+	void sfStopShakeScreen();
+	void sfStartSequence();
+	void sfEndSequence();
+	void sfSetSequenceVolume();
+	void sfPlayPositionalSound();
+	void sfPlaySound2();
+	void sfClearScreen();
+	void sfHandleInput();
+	void sfRunOptionsScreen();
+	void sfPrecacheSprites();
+	void sfPrecacheSounds1();
+	void sfDeletePrecachedFiles();
+	void sfPrecacheSounds2();
+	void sfRestoreStackPtr();
+	void sfSaveStackPtr();
+	void sfPlayMovie();
+
+};
+
+
+} // End of namespace Toltecs
+
+#endif /* TOLTECS_H */