/* Copyright (C) 2012, Mike <mike@flomp.net>
   Copyright (C) 2005-2012, Thorvald Natvig <thorvald@natvig.com>

   All rights reserved.

   Redistribution and use in source and binary forms, with or without
   modification, are permitted provided that the following conditions
   are met:

   - Redistributions of source code must retain the above copyright notice,
     this list of conditions and the following disclaimer.
   - Redistributions in binary form must reproduce the above copyright notice,
     this list of conditions and the following disclaimer in the documentation
     and/or other materials provided with the distribution.
   - Neither the name of the Mumble Developers nor the names of its
     contributors may be used to endorse or promote products derived from this
     software without specific prior written permission.

   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
   ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
   A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
   CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
   EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
   PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
   PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
   LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
   NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
   SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/

#include "../mumble_plugin_win32.h"

const unsigned int off_character_manager = 0xD8FB24;
const unsigned int off_local_player = 0x3570;
const unsigned int off_character = 0x48;
const unsigned int off_char_matrix = 0x15C;

const unsigned int off_camera_manager = 0xD919F4;
const unsigned int off_cam_matrix = 0x2FC;

static BYTE *char_matrix_ptr = 0;
static BYTE *cam_matrix_ptr = 0;

typedef struct {
	float x;
	float y;
	float z;
	float w;
} Vector4;

typedef struct {
	Vector4 left;
	Vector4 top;
	Vector4 front;
	Vector4 pos;
} Matrix4;

static int setuppointers() {
	BYTE *character_manager;
	BYTE *local_player;
	BYTE *character;

	BYTE *camera_manager;

	if (!peekProc(pModule + off_character_manager, &character_manager, 4) || !character_manager)
		return false;

	if (!peekProc(character_manager + off_local_player, &local_player, 4) || !local_player)
		return false;

	if (!peekProc(local_player + off_character, &character, 4) || !character)
		return false;

	char_matrix_ptr = character + off_char_matrix;

	if (!peekProc(pModule + off_camera_manager, &camera_manager, 4) || !camera_manager)
		return false;

	cam_matrix_ptr = camera_manager + off_cam_matrix;

	return true;
}

static int fetch(float *avatar_pos, float *avatar_front, float *avatar_top, float *camera_pos, float *camera_front, float *camera_top,
                 std::string &, std::wstring &) {

	for (int i=0;i<3;i++)
		avatar_pos[i]=avatar_front[i]=avatar_top[i]=0.0f;

	if ((!char_matrix_ptr || !cam_matrix_ptr) && !setuppointers()) {
		return false;
	}

	bool ok;

	Matrix4 char_matrix;
	Matrix4 cam_matrix;

	ok = peekProc(char_matrix_ptr, &char_matrix, sizeof(char_matrix)) &&
			peekProc(cam_matrix_ptr, &cam_matrix, sizeof(cam_matrix));

	if (!ok)
		return false;

	avatar_pos[0] = char_matrix.pos.x;
	avatar_pos[1] = char_matrix.pos.y;
	avatar_pos[2] = -char_matrix.pos.z;

	avatar_front[0] = char_matrix.front.x;
	avatar_front[1] = char_matrix.front.y;
	avatar_front[2] = char_matrix.front.z;

	avatar_top[0] = char_matrix.top.x;
	avatar_top[1] = char_matrix.top.y;
	avatar_top[2] = char_matrix.top.z;

	camera_pos[0] = avatar_pos[0] + (cam_matrix.pos.x / 10000);
	camera_pos[1] = avatar_pos[1] + (cam_matrix.pos.y / 10000);
	camera_pos[2] = avatar_pos[2] - (cam_matrix.pos.z / 10000);

	camera_front[0] = cam_matrix.front.x;
	camera_front[1] = cam_matrix.front.y;
	camera_front[2] = cam_matrix.front.z;

	camera_top[0] = cam_matrix.top.x;
	camera_top[1] = cam_matrix.top.y;
	camera_top[2] = cam_matrix.top.z;

	return true;
}

static int trylock(const std::multimap<std::wstring, unsigned long long int> &pids) {
	if (!initialize(pids, L"JustCause2.exe"))
		return false;

	float apos[3], afront[3], atop[3];
	float cpos[3], cfront[3], ctop[3];
	std::wstring sidentity;
	std::string scontext;

	if (setuppointers() && fetch(apos, afront, atop, cpos, cfront, ctop, scontext, sidentity)) {
		return true;
	} else {
		generic_unlock();
		return false;
	}
}

static const std::wstring longdesc() {
	return std::wstring(L"Supports Just Cause 2 (v1.0.0.2). No identity support.");
}

static std::wstring description(L"Just Cause 2 (v1.0.0.2)");
static std::wstring shortname(L"Just Cause 2");

static int trylock1() {
	return trylock(std::multimap<std::wstring, unsigned long long int>());
}

static MumblePlugin jc2plug = {
	MUMBLE_PLUGIN_MAGIC,
	description,
	shortname,
	NULL,
	NULL,
	trylock1,
	generic_unlock,
	longdesc,
	fetch
};

static MumblePlugin2 jc2plug2 = {
	MUMBLE_PLUGIN_MAGIC_2,
	MUMBLE_PLUGIN_VERSION,
	trylock
};

extern "C" __declspec(dllexport) MumblePlugin *getMumblePlugin() {
	return &jc2plug;
}

extern "C" __declspec(dllexport) MumblePlugin2 *getMumblePlugin2() {
	return &jc2plug2;
}

