base implementation of player fullscreen and volume callbacks into the game

Edward Rudd

2015-08-11 2e32e892540d1afbb59ea056cfe80226174a8f6f

 client/library/library_humble.js

@@ -24,6 +24,43 @@
             */
            demoEndedCallback: null
        },
        callbacks: {
            /**
             * a callback in the game code to set the expected player volume.
             * The callback takes a float parameter with a value between 0.0 and 1.0
             */
            setPlayerVolume: null,
            /**
             * a callback to set the fullscreen
             */
            setPlayerFullscreen: null
        },
        /**
         * Attempts to call into the app to inform it that the volume should be adjusted
         * @param volume  the float volume (between 0.0 and 1.0)
         * @return bool.. true if the callback was successful.. false if no callback registered
         */
        setPlayerVolume: function(volume) {
            if (HUMBLE_API.callbacks.setPlayerVolume == null) return false;
            var cb = HUMBLE_API.callbacks.setPlayerVolume[0],
                data = HUMBLE_API.callbacks.setPlayerVolume[1];
            if (volume > 1.0) volume = 1.0;
            if (volume < 0.0) volume = 0.0;
            Runtime.dynCall('vdi', cb, [volume, data]);
            return true;
        },
        /**
         * Attempts to call into the app to inform it that it should change to or from fullscreen mode
         * @param fullscreen  A bool of either true or false
         * @return bool.. true if the callback was successful.. false if no callback registered
         */
        setPlayerFullscreen: function(fullscreen) {
            if (HUMBLE_API.callbacks.setPlayerFullscreen == null) return false;
            var cb = HUMBLE_API.callbacks.setPlayerFullscreen[0],
                data = HUMBLE_API.callbacks.setPlayerFullscreen[1];
            Runtime.dynCall('vii', cb, [fullscreen ? 1 : 0, data]);
            return true;
        },
        /**
         * allows configuring the HUMBLE_API  simply call this method in a preRun to initialize..
         * any option is accepted and will be added to the configuration hash.
@@ -231,7 +268,24 @@
        if (HUMBLE_API.options.demoEndedCallback) {
            return HUMBLE_API.options.demoEndedCallback.call(HUMBLE_API);
        }
    }
    },
    humble_set_callback__deps: ['$HUMBLE_API'],
    humble_set_callback: function(type, cb, data) {
        var key = null;
        switch(type) {
            case 1: key = 'setPlayerVolume'; break;
            case 2: key = 'setPlayerFullscreen'; break;
        }
        if (key == null) {
            return 0;
        }
        if (cb == 0) {
            HUMBLE_API.callbacks[key] = null;
        } else {
            HUMBLE_API.callbacks[key] = [cb, data];
        }
        return 1;
    },
};

mergeInto(LibraryManager.library, LibraryHUMBLE);