#include "precompiled.h"

#include "lib/input.h"
#include "Globals.h"


bool g_active = true;

bool g_keys[SDLK_LAST];
int g_mouse_x = 50, g_mouse_y = 50;

// unused, left, right, middle, wheel up, wheel down
// (order is given by SDL_BUTTON_* constants).
bool g_mouse_buttons[6];


// updates the state of the above; never swallows messages.
InReaction GlobalsInputHandler(const SDL_Event* ev)
{
	int c;

	switch(ev->type)
	{
	case SDL_ACTIVEEVENT:
		g_active = (ev->active.gain != 0);

		// tasked out
		if(ev->active.gain == 0)
		{
			// reset all key/button state, so that we don't get any
			// phantom events when returning to our app.
			// see CGUI::ClearMouseState.
			for(uint i = 0; i < ARRAY_SIZE(g_mouse_buttons); i++)
				g_mouse_buttons[i] = 0;
			for(uint i = 0; i < ARRAY_SIZE(g_keys); i++)
				g_keys[i] = 0;
		}
		return IN_PASS;

	case SDL_MOUSEMOTION:
		g_mouse_x = ev->motion.x;
		g_mouse_y = ev->motion.y;
		return IN_PASS;

	case SDL_KEYDOWN:
	case SDL_KEYUP:
		c = ev->key.keysym.sym;
		if(c < ARRAY_SIZE(g_keys))
			g_keys[c] = (ev->type == SDL_KEYDOWN);
		else
		{
			// don't complain: this happens when the hotkey system
			// spoofs keys (it assigns values starting from SDLK_LAST)
			//debug_warn("invalid key");
		}
		return IN_PASS;

	case SDL_MOUSEBUTTONDOWN:
	case SDL_MOUSEBUTTONUP:
		c = ev->button.button;
		if(c < ARRAY_SIZE(g_mouse_buttons))
			g_mouse_buttons[c] = (ev->type == SDL_MOUSEBUTTONDOWN);
		else
			debug_warn("invalid mouse button");
		return IN_PASS;

	default:
		return IN_PASS;
	}

	UNREACHABLE;
}