/* 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 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.
 *
 * $URL$
 * $Id$
 *
 */

#include "igor/igor.h"

namespace Igor {

void IgorEngine::PART_30_EXEC_ACTION(int action) {
	switch (action) {
	case 101:
		_currentPart = 231;
		break;
	case 102:
		PART_30_ACTION_102();
		break;
	case 103:
		ADD_DIALOGUE_TEXT(203, 1);
		SET_DIALOGUE_TEXT(1, 1);
		startIgorDialogue();
		break;
	case 104:
		PART_30_ACTION_104();
		break;
	case 105:
		ADD_DIALOGUE_TEXT(202, 1);
		SET_DIALOGUE_TEXT(1, 1);
		startIgorDialogue();
		break;
	case 106:
		_currentPart = 210;
		break;
	default:
		error("PART_30_EXEC_ACTION unhandled action %d", action);
		break;
	}
}

void IgorEngine::PART_30_ACTION_102() {
	_roomObjectAreasTable[_screenLayer2[24108]].area = 2;
	--_walkDataLastIndex;
	buildWalkPath(99, 119, 108, 75);
	_walkDataCurrentIndex = 1;
	_gameState.igorMoving = true;
	waitForIgorMove();
	_roomObjectAreasTable[_screenLayer2[24170]].area = 0;
	--_walkDataLastIndex;
	buildWalkPath(108, 75, 170, 75);
	_walkDataCurrentIndex = 1;
	_gameState.igorMoving = true;
	waitForIgorMove();
	_currentPart = 312;
}

void IgorEngine::PART_30_ACTION_104() {
	--_walkDataLastIndex;
	_roomObjectAreasTable[_screenLayer2[36318]].area = 2;
	buildWalkPath(158, 119, 158, 113);
	_walkDataCurrentIndex = 1;
	_gameState.igorMoving = true;
	waitForIgorMove();
	_walkDataCurrentIndex = 0;
	for (int i = 9; i >= 0; --i) {
		if (i == 9) {
			_walkCurrentFrame = 0;
		}
		_walkData[0].setPos(158, 113, 1, _walkCurrentFrame);
		WalkData::setNextFrame(1, _walkCurrentFrame);
		_walkData[0].setDefaultScale();
		_walkData[0].clipSkipX = 1;
		_walkData[0].clipWidth = 30;
		_walkData[0].dyPos = 3;
		_walkData[0].scaleWidth = i * 3 + 23;
		moveIgor(_walkData[0].posNum, _walkData[0].frameNum);
		waitForTimer(15);
	}
	_currentPart = (_objectsState[111] == 0) ? 171 : 771;
}

void IgorEngine::PART_30_UPDATE_DIALOGUE_LAURA(int action) {
	switch (action) {
	case kUpdateDialogueAnimEndOfSentence:
		PART_30_HELPER_9(42);
		break;
	case kUpdateDialogueAnimMiddleOfSentence:
		PART_30_HELPER_9(getRandomNumber(9) + 42);
		break;
	case kUpdateDialogueAnimStanding:
		PART_30_HELPER_9(33);
		break;
	}
}

void IgorEngine::PART_30_HANDLE_DIALOGUE_LAURA() {
	loadDialogueData(DLG_CollegeStairsFirstFloor);
	_updateDialogue = &IgorEngine::PART_30_UPDATE_DIALOGUE_LAURA;
	handleDialogue(201, 85, 63, 0, 38);
	_updateDialogue = 0;
}

void IgorEngine::PART_30_HELPER_1(int num) {
}

void IgorEngine::PART_30_HELPER_2() {
	_walkData[0].setPos(0, 138, 2, 0);
	_walkData[0].setDefaultScale();
	_walkData[0].clipWidth = 15;
	_walkDataLastIndex = 0;
	_walkDataCurrentIndex = 1;
	buildWalkPath(0, 138, 30, 138);
	_walkData[_walkDataLastIndex].frameNum = 0;
	_walkDataCurrentIndex = 1;
	_gameState.igorMoving = true;
	waitForIgorMove();
}

void IgorEngine::PART_30_HELPER_3() {
	_roomObjectAreasTable[_screenLayer2[24170]].area = 2;
	_walkData[0].setPos(170, 75, 4, 0);
	_walkData[0].setDefaultScale();
	_walkDataLastIndex = 0;
	_roomObjectAreasTable[_screenLayer2[24108]].area = 2;
	buildWalkPath(170, 75, 108, 75);
	_roomObjectAreasTable[_screenLayer2[24170]].area = 0;
	_walkDataCurrentIndex = 1;
	_gameState.igorMoving = true;
	waitForIgorMove();
	--_walkDataLastIndex;
	buildWalkPath(108, 75, 99, 119);
	_roomObjectAreasTable[_screenLayer2[24108]].area = 0;
	_walkDataCurrentIndex = 1;
	_gameState.igorMoving = true;
	waitForIgorMove();
	--_walkDataLastIndex;
	buildWalkPath(99, 119, 128, 123);
	_walkData[_walkDataLastIndex].frameNum = 0;
	_walkDataCurrentIndex = 1;
	_gameState.igorMoving = true;
	waitForIgorMove();
}

void IgorEngine::PART_30_HELPER_4() {
	_walkDataCurrentIndex = 0;
	_walkCurrentFrame = 1;
	_walkCurrentPos = 3;
	for (int i = 0; i <= 9; ++i) {
		if (i == 9) {
			_walkCurrentFrame = 0;
		}
		_walkData[0].setPos(158, 113, 3, _walkCurrentFrame);
		WalkData::setNextFrame(3, _walkCurrentFrame);
		_walkData[0].setDefaultScale();
		_walkData[0].scaleWidth = i * 3 + 23;
		moveIgor(_walkData[0].posNum, _walkData[0].frameNum);
		waitForTimer(15);
	}
	_walkDataLastIndex = 1;
	_walkDataCurrentIndex = 1;
	_roomObjectAreasTable[_screenLayer2[36318]].area = 2;
	--_walkDataLastIndex;
	buildWalkPath(158, 113, 128, 123);
	_roomObjectAreasTable[_screenLayer2[36318]].area = 0;
	_walkData[_walkDataLastIndex].frameNum = 0;
	_walkDataCurrentIndex = 1;
	_gameState.igorMoving = true;
	waitForIgorMove();
}

void IgorEngine::PART_30_HELPER_5() {
	_walkData[0].setPos(319, 138, 4, 0);
	_walkData[0].setDefaultScale();
	_walkData[0].clipWidth = 15;
	_walkDataLastIndex = 0;
	_walkDataCurrentIndex = 1;
	buildWalkPath(319, 138, 289, 138);
	_walkData[_walkDataLastIndex].frameNum = 0;
	_gameState.igorMoving = true;
	waitForIgorMove();
}

void IgorEngine::PART_30_HELPER_8() {
	playMusic(3);
	memset(_screenVGA + 46080, 0, 17920);
	fadeInPalette(768);
	for (int i = 1; i <= 40; ++i) {
		const uint8 *src = _animFramesBuffer + READ_LE_UINT16(_animFramesBuffer + 0xBE94 + i * 2) - 1;
		decodeAnimFrame(src, _screenVGA, true);
		if (i < 34) {
			waitForTimer(25);
		} else {
			waitForTimer(15);
		}
	}
	_walkData[0].setPos(172, 134, 2, 0);
	_walkData[0].setDefaultScale();
	_walkDataLastIndex = 1;
	_walkDataCurrentIndex = 1;
	_updateDialogue = &IgorEngine::PART_30_UPDATE_DIALOGUE_LAURA;
	ADD_DIALOGUE_TEXT(203, 1);
	ADD_DIALOGUE_TEXT(204, 1);
	ADD_DIALOGUE_TEXT(205, 1);
	SET_DIALOGUE_TEXT(1, 3);
	startIgorDialogue();
	waitForEndOfIgorDialogue();
	ADD_DIALOGUE_TEXT(206, 1);
	SET_DIALOGUE_TEXT(1, 1);
	startCutsceneDialogue(201, 85, 63, 0, 38);
	waitForEndOfCutsceneDialogue(201, 85, 63, 0, 38);
	decodeAnimFrame(_animFramesBuffer + READ_LE_UINT16(_animFramesBuffer + 0xBEE6) - 1, _screenVGA, true);
	for (int i = 1; i <= 41; ++i) {
		const uint8 *src = _animFramesBuffer + READ_LE_UINT16(_animFramesBuffer + 0xBE94 + i * 2) - 1;
		decodeAnimFrame(src, _screenVGA, true);
	}
	PART_30_HANDLE_DIALOGUE_LAURA();
	ADD_DIALOGUE_TEXT(207, 1);
	SET_DIALOGUE_TEXT(1, 1);
	startIgorDialogue();
	waitForEndOfIgorDialogue();
	ADD_DIALOGUE_TEXT(208, 1);
	ADD_DIALOGUE_TEXT(209, 1);
	SET_DIALOGUE_TEXT(1, 2);
	startCutsceneDialogue(201, 85, 63, 0, 38);
	waitForEndOfCutsceneDialogue(201, 85, 63, 0, 38);
	_updateDialogue = 0;
	for (int i = 51; i <= 70; ++i) {
		const uint8 *src = _animFramesBuffer + READ_LE_UINT16(_animFramesBuffer + 0xBE94 + i * 2) - 1;
		decodeAnimFrame(src, _screenVGA, true);
		if (i < 68) {
			waitForTimer(25);
		}
	}
	_walkData[0].setPos(164, 135, 3, 0);
	_walkData[0].setDefaultScale();
	_walkDataLastIndex = 1;
	ADD_DIALOGUE_TEXT(210, 1);
	SET_DIALOGUE_TEXT(1, 1);
	startIgorDialogue();
	memset(_screenVGA + 46080, 0, 17920);
	drawVerbsPanel();
	drawInventory(_inventoryInfo[72], 0);
	_currentAction.verb = kVerbWalk;
	_objectsState[73] = 1;
	PART_30_HELPER_1(255);
}

void IgorEngine::PART_30_HELPER_9(int frame) {
	const uint8 *src = _animFramesBuffer + READ_LE_UINT16(_animFramesBuffer + 0xBE94 + frame * 2) - 1;
	decodeAnimFrame(src, _screenVGA, true);
}

void IgorEngine::PART_30() {
	_gameState.enableLight = 2;
	loadRoomData(PAL_CollegeStairsFirstFloor, IMG_CollegeStairsFirstFloor, BOX_CollegeStairsFirstFloor, MSK_CollegeStairsFirstFloor, TXT_CollegeStairsFirstFloor);
	static const int anm[] = { FRM_CollegeStairsFirstFloor1, FRM_CollegeStairsFirstFloor2, 0 };
	loadAnimData(anm);
	loadActionData(DAT_CollegeStairsFirstFloor);
	_roomDataOffsets = PART_30_ROOM_DATA_OFFSETS;
	setRoomWalkBounds(0, 0, 319, 143);
	SET_EXEC_ACTION_FUNC(1, &IgorEngine::PART_30_EXEC_ACTION);
	PART_30_HELPER_1(255);
	memcpy(_screenVGA, _screenLayer1, 46080);
	_currentAction.verb = kVerbWalk;
	if (_objectsState[73] == 0) {
		 PART_30_HELPER_8();
	} else {
		if (_currentPart != 302) {
			fadeInPalette(768);
		}
		if (_currentPart == 300) {
			PART_30_HELPER_2();
		} else if (_currentPart == 301) {
			PART_30_HELPER_3();
		} else if (_currentPart == 302) {
			playMusic(3);
			fadeInPalette(768);
			PART_30_HELPER_4();
		} else if (_currentPart == 303) {
			PART_30_HELPER_5();
		}
	}
	if (!_gameState.dialogueTextRunning) {
		showCursor();
	}
	_gameState.igorMoving = false;
	while (_currentPart >= 300 && _currentPart <= 303) {
		handleRoomInput();
		if (compareGameTick(1, 16)) {
			handleRoomIgorWalk();
		}
		if (compareGameTick(19, 32)) {
			handleRoomDialogue();
		}
		if (compareGameTick(4, 8)) {
			handleRoomInventoryScroll();
		}
		if (compareGameTick(1)) {
			handleRoomLight();
		}
		waitForTimer();
	}
	fadeOutPalette(624);
}

} // namespace Igor