Test gist

hoge.js

        refresh() {
            this.bitmap.clear();
            this.createTroutArray();
            this.refreshTroutData();
            this.drawCalendar();
        }

test.js

        updateInput() {
            if (Input.isRepeated('down')) {
            }
            if (Input.isRepeated('up')) {
                
            }
            if (Input.isRepeated('right')) {
                console.log('right!');
            }
            if (Input.isRepeated('left')) {
                //Test
            }
            if (Input.isTriggered('pagedown')) {
                this.gotoNextMonth();
            }
            if (Input.isTriggered('pageup')) {
                this.gotoPreviousMonth();
            }
        }

Test code.