#include "CursorTask.h"

#include <SDL/SDL.h>
#include <SDL/SDL_gfxPrimitives.h>
#include <SDL/SDL_gfxPrimitives_font.h>

#include <libndls.h>
#include <algorithm>


void CursorTask::logic()
{
    if(!show)
		return;

    touchpad_report_t touchpad;
    touchpad_scan(&touchpad);

    state = touchpad_arrow_pressed(TPAD_ARROW_CLICK);

    int dx = 0, dy = 0;
    static bool tp_last_contact = touchpad.contact;
    if(touchpad.contact && !touchpad.pressed)
    {
        static int tp_last_x = touchpad.x;
        static int tp_last_y = touchpad.y;

        if(tp_last_contact)
        {
            dx = (touchpad.x - tp_last_x) / 10;
            dy = (tp_last_y - touchpad.y) / 10;
        }

        tp_last_x = touchpad.x;
        tp_last_y = touchpad.y;
        tp_last_contact = touchpad.contact;
	}
    else
    {
        tp_last_contact = false;
    }

	x = std::max<unsigned int>({0, dx + x});
	y = std::max<unsigned int>({0, dy + y});

	x = std::min<unsigned int>({x, SCREEN_WIDTH});
	y = std::min<unsigned int>({y, SCREEN_HEIGHT});
}


void CursorTask::render( SDL_Surface *screen )
{
    if(!show)
		return;

    //Draw the simple mouse cursor
    filledTrigonRGBA( screen, x, y, x+5, y+10, x+10, y+5, 255, 255, 255, 255);
    trigonRGBA( screen, x, y, x+5, y+10, x+10, y+5, 255, 0, 0, 255);
}