Function input_get

src/lua-engine.cpp:2555–2742

adelikat - the code for the keys is copied directly from GENS. Props to nitsuja the code for the mouse is simply the same code from zapper.get input.get() takes no input, returns a lua table of entries representing the current input state, independent of the joypad buttons the emulated game thinks are pressed for example: if the user is holding the W key and the left mouse button and has the mous

//   and has the mouse at the bottom-right corner of the game screen,
//   then this would return {W=true, leftclick=true, xmouse=319, ymouse=223}
static int input_get(lua_State *L) {
	lua_newtable(L);

#ifdef __WIN_DRIVER__
	// keyboard and mouse button status
	{
		extern int EnableBackgroundInput;
		unsigned char keys [256];
		if(!EnableBackgroundInput)
		{
			if(GetKeyboardState(keys))
			{
				for(int i = 1; i < 255; i++)
				{
					int mask = (i == VK_CAPITAL || i == VK_NUMLOCK || i == VK_SCROLL) ? 0x01 : 0x80;
					if(keys[i] & mask)
					{
						//ignore mouse buttons if the main window isn't focused
						if(i==1 || i==2)
							if(GetForegroundWindow()!=hAppWnd)
								continue;

						const char* name = s_keyToName[i];
						if(name)
						{
							lua_pushboolean(L, true);
							lua_setfield(L, -2, name);
						}
					}
				}
			}
		}
		else // use a slightly different method that will detect background input:
		{
			for(int i = 1; i < 255; i++)
			{
				const char* name = s_keyToName[i];
				if(name)
				{
					int active;

					//ignore mouse buttons if the main window isn't focused
					if(i==1 || i==2)
						if(GetForegroundWindow()!=hAppWnd)
							continue;

					if(i == VK_CAPITAL || i == VK_NUMLOCK || i == VK_SCROLL)
						active = GetKeyState(i) & 0x01;
					else
						active = GetAsyncKeyState(i) & 0x8000;
					if(active)
					{
						lua_pushboolean(L, true);
						lua_setfield(L, -2, name);
					}
				}
			}
		}