#include "GameScript.h"

GameScript::GameScript()
{
	m_lua.open_libraries(sol::lib::base);

	m_lua.new_usertype<GameScriptSettings>("GameScriptSettings",
		"screenWidth", &GameScriptSettings::ScreenWidth,
		"screenHeight", &GameScriptSettings::ScreenHeight,
		"windowTitle", &GameScriptSettings::WindowTitle,
		"enableDynamicShadows", &GameScriptSettings::EnableDynamicShadows
		);

	m_lua.new_usertype<GameScriptSkyLayer>("SkyLayer",
		sol::constructors<GameScriptSkyLayer(byte, byte, byte, __int16)>(),
		"r", &GameScriptSkyLayer::R,
		"g", &GameScriptSkyLayer::G,
		"b", &GameScriptSkyLayer::B,
		"speed", &GameScriptSkyLayer::CloudSpeed
		);

	m_lua.new_usertype<GameScriptFog>("Fog",
		sol::constructors<GameScriptFog(byte, byte, byte)>(),
		"r", &GameScriptFog::R,
		"g", &GameScriptFog::G,
		"b", &GameScriptFog::B
		);
	 
	m_lua.new_usertype<GameScriptLevel>("Level",
		sol::constructors<GameScriptLevel()>(),
		"name", &GameScriptLevel::Name,
		"script", &GameScriptLevel::ScriptFileName,
		"filename", &GameScriptLevel::FileName,
		"loadscreen", &GameScriptLevel::LoadScreenFileName,
		"soundtrack", &GameScriptLevel::Soundtrack,
		"layer1", &GameScriptLevel::Layer1,
		"layer2", &GameScriptLevel::Layer2,
		"fog", &GameScriptLevel::Fog,
		"horizon", &GameScriptLevel::Horizon,
		"coladdhorizon", &GameScriptLevel::ColAddHorizon
		);

	m_levels.resize(NUM_LEVELS);
	m_lua["levels"] = &m_levels;

	m_lua["settings"] = &m_settings;
	
	m_strings.resize(NUM_STRINGS);
	m_lua["strings"] = &m_strings;
}

GameScript::~GameScript()
{

}

string GameScript::loadScriptFromFile(char* luaFilename)
{
	ifstream ifs(luaFilename, ios::in | ios::binary | ios::ate);

	ifstream::pos_type fileSize = ifs.tellg();
	ifs.seekg(0, ios::beg);
	 
	vector<char> bytes(fileSize);
	ifs.read(bytes.data(), fileSize);

	return string(bytes.data(), fileSize);
}
 
bool GameScript::LoadGameStrings(char* luaFilename)
{
	string script = loadScriptFromFile(luaFilename);
	m_lua.script(script);

	return true;
}

bool GameScript::LoadGameSettings(char* luaFilename)
{
	string script = loadScriptFromFile(luaFilename);
	m_lua.script(script);

	return true;
}
 
bool GameScript::ExecuteScript(char* luaFilename)
{ 
	string script = loadScriptFromFile(luaFilename);
	m_lua.script(script);
	 
	return true;
}

char* GameScript::GetString(__int32 id)
{
	return ((char*)m_strings[id - 1].c_str()); 
}

GameScriptSettings* GameScript::GetSettings()
{
	return &m_settings;
}

GameScriptLevel* GameScript::GetLevel(__int32 id)
{
	return m_levels[id];
}

GameScriptLevel* GameScript::GetTitle()
{
	return m_title;
}

void GameScript::SetHorizon(bool horizon, bool colAddHorizon)
{
	DrawHorizon = horizon;
	ColAddHorizon = colAddHorizon;
}

void GameScript::SetLayer1(byte r, byte g, byte b, __int16 speed)
{
	SkyColor1.r = r;
	SkyColor1.g = g;
	SkyColor1.b = b;
	SkyVelocity1 = speed;

	SkyColorLayer1.x = r / 255.0f;
	SkyColorLayer1.y = g / 255.0f;
	SkyColorLayer1.z = b / 255.0f;
	SkySpeedLayer1 = speed;
}

void GameScript::SetLayer2(byte r, byte g, byte b, __int16 speed)
{
	SkyColor2.r = r;
	SkyColor2.g = g;
	SkyColor2.b = b;
	SkyVelocity2 = speed;

	SkyColorLayer2.x = r / 255.0f;
	SkyColorLayer2.y = g / 255.0f;
	SkyColorLayer2.z = b / 255.0f;
	SkySpeedLayer2 = speed;
}

void GameScript::SetFog(byte r, byte g, byte b, __int16 startDistance, __int16 endDistance)
{
	FogColor.x = r / 255.0f;
	FogColor.y = g / 255.0f;
	FogColor.z = b / 255.0f;
	FogInDistance = startDistance;
	FogOutDistance = endDistance;
}

GameScript* g_Script;