source: abuse/trunk/src/sdlport/mouse.cpp @ 28 Tweet

/************************
 * mouse.c
 * SDL port for Abuse
 * by Anthony Kruize
 ************************/

#include <SDL.h>

#include "video.hpp"
#include "sprite.hpp"
#include "image.hpp"
#include "filter.hpp"
#include "mdlread.hpp"
#include "mouse.hpp"

unsigned char def_mouse[]=
{
        0,2,0,0,0,0,0,0,
        2,1,2,0,0,0,0,0,
        2,1,1,2,0,0,0,0,
        2,1,1,1,2,0,0,0,
        2,1,1,1,1,2,0,0,
        2,1,1,1,1,1,2,0,
        0,2,1,1,2,2,0,0,
        0,0,2,1,1,2,0,0,
        0,0,2,1,1,2,0,0,
        0,0,0,2,2,0,0,0
};

//
// Constructor
//
JCMouse::JCMouse( image *Screen, palette *pal )
{
        image *im;
        int br, dr;
        filter f;
        but = 0;
        cx = cy = 0;
        here = 1;
        sp = NULL;

        screen = Screen;
        br = pal->brightest( 1 );
        dr = pal->darkest( 1 );
        f.set( 1, br );
        f.set( 2, dr );
        im = new image( 8, 10, def_mouse );
        f.apply( im );
        sp = new sprite( Screen, im, 100, 100 );
        mx = Screen->width() / 2;
        my = Screen->height() / 2;
}

//
// Destructor
//
JCMouse::~JCMouse()
{
        if( sp )
        {
                delete sp->visual;
                delete sp;
        }
}

//
// set_shape()
// Set the shape of the mouse cursor
//
void JCMouse::set_shape( image *im, int centerx, int centery )
{
        sp->change_visual( im, 1 );
        cx = -centerx;
        cy = -centery;
}

//
// set_position()
// Set the position of the mouse cursor
//
void JCMouse::set_position( int new_mx, int new_my )
{
        // Make sure the values we are given are sensible.
        if( new_mx > 319 )
        {
                new_mx = 319;
        }
        if( new_my > 199 )
        {
                new_my = 199;
        }

        // Set the new position
        mx = new_mx;
        my = new_my;
        SDL_WarpMouse( new_mx, new_my );
}

//
// update()
// Update the mouses position and buttons states
//
void JCMouse::update( int newx, int newy, int new_but )
{
        if( newx < 0 )
        {
                Uint8 mask;

                lx = mx;
                ly = my;
                lbut = but;
                mask = SDL_GetMouseState( &mx, &my );
                but = ( ( mask & SDL_BUTTON(1) ) != 0 ) |
                          ( ( mask & SDL_BUTTON(2) ) != 0 ) << 2 |
                          ( ( mask & SDL_BUTTON(3) ) != 0 ) << 1;
        }
        else
        {
                mx = newx;
                my = newy;
                but = new_but;
        }
}