/* ScummVM - Scumm Interpreter
 * Copyright (C) 2004 Ivan Dubrov
 * Copyright (C) 2004-2006 The ScummVM project
 *
 * 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 2
 * 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, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 *
 * $Header$
 *
 */
#include "gob/gob.h"
#include "gob/global.h"
#include "gob/inter.h"
#include "gob/util.h"
#include "gob/scenery.h"
#include "gob/parse.h"
#include "gob/game.h"
#include "gob/draw.h"
#include "gob/mult.h"
#include "gob/goblin.h"
#include "gob/cdrom.h"

namespace Gob {

#define OPCODE(x) _OPCODE(Inter_v2, x)

const int Inter_v2::_goblinFuncLookUp[][2] = {
	{1, 0},
	{2, 1},
	{3, 2},
	{4, 3},
	{5, 4},
	{6, 5},
	{7, 6},
	{8, 7},
	{9, 8},
	{10, 9},
	{12, 10},
	{13, 11},
	{14, 12},
	{15, 13},
	{16, 14},
	{21, 15},
	{22, 16},
	{23, 17},
	{24, 18},
	{25, 19},
	{26, 20},
	{27, 21},
	{28, 22},
	{29, 23},
	{30, 24},
	{32, 25},
	{33, 26},
	{34, 27},
	{35, 28},
	{36, 29},
	{37, 30},
	{40, 31},
	{41, 32},
	{42, 33},
	{43, 34},
	{44, 35},
	{50, 36},
	{52, 37},
	{53, 38},
	{150, 39},
	{152, 40},
	{200, 41},
	{201, 42},
	{202, 43},
	{203, 44},
	{204, 45},
	{250, 46},
	{251, 47},
	{252, 48},
	{500, 49},
	{502, 50},
	{503, 51},
	{600, 52},
	{601, 53},
	{602, 54},
	{603, 55},
	{604, 56},
	{605, 57},
	{1000, 58},
	{1001, 59},
	{1002, 60},
	{1003, 61},
	{1004, 62},
	{1005, 63},
	{1006, 64},
	{1008, 65},
	{1009, 66},
	{1010, 67},
	{1011, 68},
	{1015, 69},
	{2005, 70}
};

Inter_v2::Inter_v2(GobEngine *vm) : Inter_v1(vm) {
	setupOpcodes();
}

void Inter_v2::setupOpcodes(void) {
	static const OpcodeDrawEntryV2 opcodesDraw[256] = {
		/* 00 */
		OPCODE(o1_loadMult),
		OPCODE(o1_playMult),
		OPCODE(o1_freeMult),
		{NULL, ""},
		/* 04 */
		{NULL, ""},
		{NULL, ""},
		{NULL, ""},
		OPCODE(o1_initCursor),
		/* 08 */
		OPCODE(o1_initCursorAnim),
		OPCODE(o1_clearCursorAnim),
		OPCODE(o1_setRenderFlags),
		{NULL, ""},
		/* 0C */
		{NULL, ""},
		{NULL, ""},
		{NULL, ""},
		{NULL, ""},
		/* 10 */
		OPCODE(o1_loadAnim),
		OPCODE(o1_freeAnim),
		OPCODE(o1_updateAnim),
		OPCODE(o2_drawStub),
		/* 14 */
		OPCODE(o1_initMult),
		OPCODE(o1_multFreeMult),
		OPCODE(o1_animate),
		OPCODE(o1_multLoadMult),
		/* 18 */
		OPCODE(o1_storeParams),
		OPCODE(o1_getObjAnimSize),
		OPCODE(o1_loadStatic),
		OPCODE(o1_freeStatic),
		/* 1C */
		OPCODE(o1_renderStatic),
		OPCODE(o1_loadCurLayer),
		{NULL, ""},
		{NULL, ""},
		/* 20 */
		OPCODE(o2_drawStub),
		OPCODE(o2_drawStub),
		OPCODE(o2_drawStub),
		OPCODE(o2_drawStub),
		/* 24 */
		OPCODE(o2_drawStub),
		OPCODE(o2_drawStub),
		{NULL, ""},
		{NULL, ""},
		/* 28 */
		{NULL, ""},
		{NULL, ""},
		{NULL, ""},
		{NULL, ""},
		/* 2C */
		{NULL, ""},
		{NULL, ""},
		{NULL, ""},
		{NULL, ""},
		/* 30 */
		OPCODE(o1_loadFontToSprite),
		OPCODE(o1_freeFontToSprite),
		{NULL, ""},
		{NULL, ""},
		/* 34 */
		{NULL, ""},
		{NULL, ""},
		{NULL, ""},
		{NULL, ""},
		/* 38 */
		{NULL, ""},
		{NULL, ""},
		{NULL, ""},
		{NULL, ""},
		/* 3C */
		{NULL, ""},
		{NULL, ""},
		{NULL, ""},
		{NULL, ""},
		/* 40 */
		OPCODE(o2_drawStub),
		OPCODE(o2_drawStub),
		OPCODE(o2_drawStub),
		OPCODE(o2_drawStub),
		/* 44 */
		{NULL, ""},
		{NULL, ""},
		{NULL, ""},
		{NULL, ""},
		/* 48 */
		{NULL, ""},
		{NULL, ""},
		{NULL, ""},
		{NULL, ""},
		/* 4C */
		{NULL, ""},
		{NULL, ""},
		{NULL, ""},
		{NULL, ""},
		/* 50 */
		OPCODE(o2_drawStub),
		OPCODE(o2_drawStub),
		OPCODE(o2_drawStub),
		OPCODE(o2_drawStub),
		/* 54 */
		OPCODE(o2_drawStub),
		OPCODE(o2_drawStub),
		OPCODE(o2_drawStub),
		{NULL, ""},
		/* 58 */
		{NULL, ""},
		{NULL, ""},
		{NULL, ""},
		{NULL, ""},
		/* 5C */
		{NULL, ""},
		{NULL, ""},
		{NULL, ""},
		{NULL, ""},
		/* 60 */
		{NULL, ""},
		{NULL, ""},
		{NULL, ""},
		{NULL, ""},
		/* 64 */
		{NULL, ""},
		{NULL, ""},
		{NULL, ""},
		{NULL, ""},
		/* 68 */
		{NULL, ""},
		{NULL, ""},
		{NULL, ""},
		{NULL, ""},
		/* 6C */
		{NULL, ""},
		{NULL, ""},
		{NULL, ""},
		{NULL, ""},
		/* 70 */
		{NULL, ""},
		{NULL, ""},
		{NULL, ""},
		{NULL, ""},
		/* 74 */
		{NULL, ""},
		{NULL, ""},
		{NULL, ""},
		{NULL, ""},
		/* 78 */
		{NULL, ""},
		{NULL, ""},
		{NULL, ""},
		{NULL, ""},
		/* 7C */
		{NULL, ""},
		{NULL, ""},
		{NULL, ""},
		{NULL, ""},
		/* 80 */
		OPCODE(o2_stub0x80),
		OPCODE(o2_drawStub),
		OPCODE(o2_drawStub),
		OPCODE(o2_drawStub),
		/* 84 */
		OPCODE(o2_drawStub),
		OPCODE(o2_drawStub),
		OPCODE(o2_drawStub),
		OPCODE(o2_drawStub),
		/* 88 */
		OPCODE(o2_drawStub),
		{NULL, ""},
		{NULL, ""},
		{NULL, ""},
		/* 8C */
		{NULL, ""},
		{NULL, ""},
		{NULL, ""},
		{NULL, ""},
		/* 90 */
		{NULL, ""},
		{NULL, ""},
		{NULL, ""},
		{NULL, ""},
		/* 94 */
		{NULL, ""},
		{NULL, ""},
		{NULL, ""},
		{NULL, ""},
		/* 98 */
		{NULL, ""},
		{NULL, ""},
		{NULL, ""},
		{NULL, ""},
		/* 9C */
		{NULL, ""},
		{NULL, ""},
		{NULL, ""},
		{NULL, ""},
		/* A0 */
		{NULL, ""},
		{NULL, ""},
		{NULL, ""},
		{NULL, ""},
		/* A4 */
		{NULL, ""},
		{NULL, ""},
		{NULL, ""},
		{NULL, ""},
		/* A8 */
		{NULL, ""},
		{NULL, ""},
		{NULL, ""},
		{NULL, ""},
		/* AC */
		{NULL, ""},
		{NULL, ""},
		{NULL, ""},
		{NULL, ""},
		/* B0 */
		{NULL, ""},
		{NULL, ""},
		{NULL, ""},
		{NULL, ""},
		/* B4 */
		{NULL, ""},
		{NULL, ""},
		{NULL, ""},
		{NULL, ""},
		/* B8 */
		{NULL, ""},
		{NULL, ""},
		{NULL, ""},
		{NULL, ""},
		/* BC */
		{NULL, ""},
		{NULL, ""},
		{NULL, ""},
		{NULL, ""},
		/* C0 */
		{NULL, ""},
		{NULL, ""},
		{NULL, ""},
		{NULL, ""},
		/* C4 */
		{NULL, ""},
		{NULL, ""},
		{NULL, ""},
		{NULL, ""},
		/* C8 */
		{NULL, ""},
		{NULL, ""},
		{NULL, ""},
		{NULL, ""},
		/* CC */
		{NULL, ""},
		{NULL, ""},
		{NULL, ""},
		{NULL, ""},
		/* D0 */
		{NULL, ""},
		{NULL, ""},
		{NULL, ""},
		{NULL, ""},
		/* D4 */
		{NULL, ""},
		{NULL, ""},
		{NULL, ""},
		{NULL, ""},
		/* D8 */
		{NULL, ""},
		{NULL, ""},
		{NULL, ""},
		{NULL, ""},
		/* DC */
		{NULL, ""},
		{NULL, ""},
		{NULL, ""},
		{NULL, ""},
		/* E0 */
		{NULL, ""},
		{NULL, ""},
		{NULL, ""},
		{NULL, ""},
		/* E4 */
		{NULL, ""},
		{NULL, ""},
		{NULL, ""},
		{NULL, ""},
		/* E8 */
		{NULL, ""},
		{NULL, ""},
		{NULL, ""},
		{NULL, ""},
		/* EC */
		{NULL, ""},
		{NULL, ""},
		{NULL, ""},
		{NULL, ""},
		/* F0 */
		{NULL, ""},
		{NULL, ""},
		{NULL, ""},
		{NULL, ""},
		/* F4 */
		{NULL, ""},
		{NULL, ""},
		{NULL, ""},
		{NULL, ""},
		/* F8 */
		{NULL, ""},
		{NULL, ""},
		{NULL, ""},
		{NULL, ""},
		/* FC */
		{NULL, ""},
		{NULL, ""},
		{NULL, ""},
		{NULL, ""}
	};

	static const OpcodeFuncEntryV2 opcodesFunc[80] = {
		/* 00 */
		OPCODE(o1_callSub),
		OPCODE(o1_callSub),
		OPCODE(o1_drawPrintText),
		OPCODE(o1_loadCursor),
		/* 04 */
		{NULL, ""},
		OPCODE(o1_call),
		OPCODE(o1_repeatUntil),
		OPCODE(o1_whileDo),
		/* 08 */
		OPCODE(o1_callBool),
		OPCODE(o1_evaluateStore),
		OPCODE(o1_loadSpriteToPos),
		{NULL, ""},
		/* 0C */
		{NULL, ""},
		{NULL, ""},
		{NULL, ""},
		{NULL, ""},
		/* 10 */
		{NULL, ""},
		OPCODE(o1_printText),
		OPCODE(o1_loadTot),
		OPCODE(o1_palLoad),
		/* 14 */
		OPCODE(o1_keyFunc),
		OPCODE(o1_capturePush),
		OPCODE(o1_capturePop),
		OPCODE(o1_animPalInit),
		/* 18 */
		{NULL, ""},
		{NULL, ""},
		{NULL, ""},
		{NULL, ""},
		/* 1C */
		{NULL, ""},
		{NULL, ""},
		OPCODE(o1_drawOperations),
		OPCODE(o1_setcmdCount),
		/* 20 */
		OPCODE(o1_return),
		OPCODE(o1_renewTimeInVars),
		OPCODE(o1_speakerOn),
		OPCODE(o1_speakerOff),
		/* 24 */
		OPCODE(o1_putPixel),
		OPCODE(o1_goblinFunc),
		OPCODE(o1_createSprite),
		OPCODE(o1_freeSprite),
		/* 28 */
		{NULL, ""},
		{NULL, ""},
		{NULL, ""},
		{NULL, ""},
		/* 2C */
		{NULL, ""},
		{NULL, ""},
		{NULL, ""},
		{NULL, ""},
		/* 30 */
		OPCODE(o1_returnTo),
		OPCODE(o1_loadSpriteContent),
		OPCODE(o1_copySprite),
		OPCODE(o1_fillRect),
		/* 34 */
		OPCODE(o1_drawLine),
		OPCODE(o1_strToLong),
		OPCODE(o1_invalidate),
		OPCODE(o1_setBackDelta),
		/* 38 */
		OPCODE(o1_playSound),
		OPCODE(o1_stopSound),
		OPCODE(o1_loadSound),
		OPCODE(o1_freeSoundSlot),
		/* 3C */
		OPCODE(o1_waitEndPlay),
		OPCODE(o1_playComposition),
		OPCODE(o1_getFreeMem),
		OPCODE(o1_checkData),
		/* 40 */
		{NULL, ""},
		OPCODE(o1_prepareStr),
		OPCODE(o1_insertStr),
		OPCODE(o1_cutStr),
		/* 44 */
		OPCODE(o1_strstr),
		OPCODE(o1_istrlen),
		OPCODE(o1_setMousePos),
		OPCODE(o1_setFrameRate),
		/* 48 */
		OPCODE(o1_animatePalette),
		OPCODE(o1_animateCursor),
		OPCODE(o1_blitCursor),
		OPCODE(o1_loadFont),
		/* 4C */
		OPCODE(o1_freeFont),
		OPCODE(o1_readData),
		OPCODE(o1_writeData),
		OPCODE(o1_manageDataFile),
	};

	static const OpcodeGoblinEntryV2 opcodesGoblin[71] = {
		/* 00 */
		OPCODE(o1_setState),
		OPCODE(o1_setCurFrame),
		OPCODE(o1_setNextState),
		OPCODE(o1_setMultState),
		/* 04 */
		OPCODE(o1_setOrder),
		OPCODE(o1_setActionStartState),
		OPCODE(o1_setCurLookDir),
		OPCODE(o1_setType),
		/* 08 */
		OPCODE(o1_setNoTick),
		OPCODE(o1_setPickable),
		OPCODE(o1_setXPos),
		OPCODE(o1_setYPos),
		/* 0C */
		OPCODE(o1_setDoAnim),
		OPCODE(o1_setRelaxTime),
		OPCODE(o1_setMaxTick),
		OPCODE(o1_getState),
		/* 10 */
		OPCODE(o1_getCurFrame),
		OPCODE(o1_getNextState),
		OPCODE(o1_getMultState),
		OPCODE(o1_getOrder),
		/* 14 */
		OPCODE(o1_getActionStartState),
		OPCODE(o1_getCurLookDir),
		OPCODE(o1_getType),
		OPCODE(o1_getNoTick),
		/* 18 */
		OPCODE(o1_getPickable),
		OPCODE(o1_getObjMaxFrame),
		OPCODE(o1_getXPos),
		OPCODE(o1_getYPos),
		/* 1C */
		OPCODE(o1_getDoAnim),
		OPCODE(o1_getRelaxTime),
		OPCODE(o1_getMaxTick),
		OPCODE(o1_manipulateMap),
		/* 20 */
		OPCODE(o1_getItem),
		OPCODE(o1_manipulateMapIndirect),
		OPCODE(o1_getItemIndirect),
		OPCODE(o1_setPassMap),
		/* 24 */
		OPCODE(o1_setGoblinPosH),
		OPCODE(o1_getGoblinPosXH),
		OPCODE(o1_getGoblinPosYH),
		OPCODE(o1_setGoblinMultState),
		/* 28 */
		OPCODE(o1_setGoblinUnk14),
		OPCODE(o1_setItemIdInPocket),
		OPCODE(o1_setItemIndInPocket),
		OPCODE(o1_getItemIdInPocket),
		/* 2C */
		OPCODE(o1_getItemIndInPocket),
		OPCODE(o1_setItemPos),
		OPCODE(o1_setGoblinPos),
		OPCODE(o1_setGoblinState),
		/* 30 */
		OPCODE(o1_setGoblinStateRedraw),
		OPCODE(o1_decRelaxTime),
		OPCODE(o1_getGoblinPosX),
		OPCODE(o1_getGoblinPosY),
		/* 34 */
		OPCODE(o1_clearPathExistence),
		OPCODE(o1_setGoblinVisible),
		OPCODE(o1_setGoblinInvisible),
		OPCODE(o1_getObjectIntersect),
		/* 38 */
		OPCODE(o1_getGoblinIntersect),
		OPCODE(o1_setItemPos),
		OPCODE(o1_loadObjects),
		OPCODE(o1_freeObjects),
		/* 3C */
		OPCODE(o1_animateObjects),
		OPCODE(o1_drawObjects),
		OPCODE(o1_loadMap),
		OPCODE(o1_moveGoblin),
		/* 40 */
		OPCODE(o1_switchGoblin),
		OPCODE(o1_loadGoblin),
		OPCODE(o1_writeTreatItem),
		OPCODE(o1_moveGoblin0),
		/* 44 */
		OPCODE(o1_setGoblinTarget),
		OPCODE(o1_setGoblinObjectsPos),
		OPCODE(o1_initGoblin)
	};

	_opcodesDrawV2 = opcodesDraw;
	_opcodesFuncV2 = opcodesFunc;
	_opcodesGoblinV2 = opcodesGoblin;
}

void Inter_v2::executeDrawOpcode(byte i) {
	debug(4, "opcodeDraw %d (%s)", i, getOpcodeDrawDesc(i));

	OpcodeDrawProcV2 op = _opcodesDrawV2[i].proc;

	if (op == NULL)
		warning("unimplemented opcodeDraw: %d", i);
	else
		(this->*op) ();
}

bool Inter_v2::executeFuncOpcode(byte i, byte j, char &cmdCount, int16 &counter, int16 &retFlag) {
	debug(4, "opcodeFunc %d (%s)", i, getOpcodeFuncDesc(i, j));

	if ((i > 4) || (j > 15)) {
		warning("unimplemented opcodeFunc: %d.%d", i, j);
		return false;
	}

	OpcodeFuncProcV2 op = _opcodesFuncV2[i*16 + j].proc;

	if (op == NULL)
		warning("unimplemented opcodeFunc: %d.%d", i, j);
	else
		return (this->*op) (cmdCount, counter, retFlag);
	return false;
}

void Inter_v2::executeGoblinOpcode(int i, int16 &extraData, int32 *retVarPtr, Goblin::Gob_Object *objDesc) {
	debug(4, "opcodeGoblin %d (%s)", i, getOpcodeGoblinDesc(i));

	OpcodeGoblinProcV2 op = NULL;

	for (int j = 0; j < ARRAYSIZE(_goblinFuncLookUp); j++)
		if (_goblinFuncLookUp[j][0] == i) {
			op = _opcodesGoblinV2[_goblinFuncLookUp[j][1]].proc;
			break;
		}

	if (op == NULL) {
		warning("unimplemented opcodeGoblin: %d", i);
		_vm->_global->_inter_execPtr -= 2;
		_vm->_global->_inter_execPtr += load16() * 2;
	}
	else
		(this->*op) (extraData, retVarPtr, objDesc);
}

const char *Inter_v2::getOpcodeDrawDesc(byte i) {
	return _opcodesDrawV2[i].desc;
}

const char *Inter_v2::getOpcodeFuncDesc(byte i, byte j) {
	if ((i > 4) || (j > 15))
		return "";

	return _opcodesFuncV2[i*16 + j].desc;
}

const char *Inter_v2::getOpcodeGoblinDesc(int i) {
	for (int j = 0; j < ARRAYSIZE(_goblinFuncLookUp); j++)
		if (_goblinFuncLookUp[j][0] == i)
			return _opcodesGoblinV2[_goblinFuncLookUp[j][1]].desc;
	return "";
}

void Inter_v2::o2_stub0x80(void) {
	_vm->_global->_inter_execPtr += 2;

	int16 expr1 = _vm->_parse->parseValExpr();
	int16 expr2 = _vm->_parse->parseValExpr();

	warning("STUB: Gob2 drawOperation 0x80 (%d %d)", expr1, expr2);
}

} // End of namespace Gob