LayaAir引擎——（八）

var a = new Array();
var b = new Array();
var ksjmCursor = 0;

function ksjminit() {
    ksjminitName();
    ksjminitRectChoose();
    ksjminitRectChoosePic();
    ksjmsetVisible(0);
    Laya.stage.on(laya.events.Event.KEY_DOWN, this, ksjmOnKeyDown);
}
function ksjminitName() {
    var a1 = new laya.display.Text();
    a1.text = "再续冒险之旅";
    a1.x = 50;
    a1.y = 50;
    a1.color = "red";
    a1.fontSize = 20;
    Laya.stage.addChild(a1);

    var a2 = new laya.display.Text();
    a2.text = "新的冒险之旅";
    a2.x = 50;
    a2.y = 50 + 30 * 1;
    a2.color = "red";
    a2.fontSize = 20;
    Laya.stage.addChild(a2);

    var a3 = new laya.display.Text();
    a3.text = "冒险者的传承";
    a3.x = 50;
    a3.y = 50 + 30 * 2;
    a3.color = "red";
    a3.fontSize = 20;
    Laya.stage.addChild(a3);

    var a4 = new laya.display.Text();
    a4.text = "打开网页";
    a4.x = 50;
    a4.y = 50 + 30 * 3;
    a4.color = "red";
    a4.fontSize = 20;
    Laya.stage.addChild(a4);

    var a5 = new laya.display.Text();
    a5.text = "变更设定";
    a5.x = 50;
    a5.y = 50 + 30 * 4;
    a5.color = "red";
    a5.fontSize = 20;
    Laya.stage.addChild(a5);

    var a6 = new laya.display.Text();
    a6.text = "退出";
    a6.x = 50;
    a6.y = 50 + 30 * 5;
    a6.color = "red";
    a6.fontSize = 20;
    Laya.stage.addChild(a6);
}
function ksjminitRectChoose(){
    for(var i = 0; i < 6; i++){
        a[i] = new laya.display.Sprite();
        if (i == 0 || i == 1 || i == 2) {
            a[i].graphics.drawRect(50, 50 + 30 * i, 6 * 20 + 5 + 10, 20, "white");
        }
        if (i == 3 || i == 4) {
            a[i].graphics.drawRect(50, 50 + 30 * i, 3 * 20 + 5 + 30, 20, "white");
        }
        if (i == 5) {
            a[i].graphics.drawRect(50, 50 + 30 * i, 2 * 20 + 5 + 10, 20, "white");
        }
        a[i].alpha = 0.25;
        a[i].visible = true;
        Laya.stage.addChild(a[i]);
    }
}
function ksjminitRectChoosePic() {
    for(var i = 0; i < 6; i++){
        b[i] = new laya.display.Sprite();
        if (i == 0 || i == 1 || i == 2) {
            b[i].loadImage("rectChoosePic.png",50 + 6 * 20 + 5 ,50 + 30 * i + 5, 10 ,10);
        }
        if (i == 3 || i == 4) {
            b[i].loadImage("rectChoosePic.png",50 + 4 * 20 + 5 ,50 + 30 * i + 5, 10 ,10);
        }
        if (i == 5) {
            b[i].loadImage("rectChoosePic.png",50 + 2 * 20 + 5 ,50 + 30 * i + 5, 10 ,10);
        }
        b[i].visible = true;
        Laya.stage.addChild(b[i]);
    }
}
function ksjmOnKeyDown(e) {
    switch(e.keyCode){
        case 38:{
            if ( (ksjmCursor - 1) <= 0 ) {
                ksjmCursor = 0;
            }else{
                ksjmCursor--;
            }
            break;
        }
        case 40:{
            if ( (ksjmCursor + 1) >= 5 ) {
                ksjmCursor = 5;
            }else{
                ksjmCursor++;
            }
            break;
        }
    }
    ksjmsetVisible(ksjmCursor);
}
function ksjmsetVisible(index) {
    for(var i = 0; i < 6 ; i++){
        if (index == i) {
            a[i].visible = true;
            b[i].visible = true;
        }else{
            a[i].visible = false;
            b[i].visible = false;
        }
    }
}