lasertank-js/scripts/game.js

/**
 * Game initialization script
 *
 *  Copyright (C) 2012  Mike Gerwitz
 *
 *  This program is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU Affero General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU Affero General Public License for more details.
 *
 *  You should have received a copy of the GNU Affero General Public License
 *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

( function()
{

var load_ltg = ltjs.FileLoader( document.getElementById( 'ltg' ) ),
    load_lvl = ltjs.FileLoader( document.getElementById( 'lvl' ) ),

    game = document.getElementById( 'game' ),
    ctx  = document.getElementById( 'render' ).getContext( '2d' ),

    ltg_loader = ltjs.LtgLoader(),
    masker     = ltjs.TileMasker( ltjs.ClassicTileDfn() ),
    tile_set   = null,
    map_set    = null,
    render     = null;

load_ltg.onLoad( function( e, data )
{
    if ( e ) throw e;

    // get tile metadata
    var meta = ltg_loader.fromString( data );

    masker.getMaskedTiles( meta.tiles, meta.mask, function( tdata )
    {
        tile_set = tdata;
        gamechk();
    } );
} );

load_lvl.onLoad( function( e, data )
{
    if ( e ) throw e;

    map_set = ltjs.MapSet( data, ltjs.ClassicMap );

    gamechk();
} );

function gamechk()
{
    if ( !( tile_set && map_set ) ) return;

    // temporary
    if ( game.className.search( 'opening' ) > -1 ) return;

    // clear any existing locks before rendering (allowing the user to change
    // tile sets and map sets)
    render && render.freeCanvas();

    render = ltjs.MapRender( ctx, tile_set );
    render.render( map_set.getMapByNumber( 1 ) );
}

// temporary
document.getElementById( 'new' ).onclick = function()
{
    game.className = game.className.replace( ' opening', '' );
    gamechk();
};

} )();