Question

出于某种原因，当我将地图放大到15 x 25时，相机会越来越多，在地图的顶部，相机会跳转显示地图的底部，并在底部跳转到顶部。 / p>

以下是代码：

    public int getXOffset(){
        int offset_x = 0;

        //the first thing we are going to need is the half-width of the screen, to calculate if the player is in the middle of our screen
        int half_width = (int) (Game.WINDOW_WIDTH/Game.SCALE/2);

        //next up is the maximum offset, this is the most right side of the map, minus half of the screen offcourse
        int maxX = (int) (map.getWidth()*32)-half_width;

        //now we have 3 cases here
        if(player.getX() < half_width){
            //the player is between the most left side of the map, which is zero and half a screen size which is 0+half_screen
            offset_x = 0;
        }else if(player.getX() > maxX){
            //the player is between the maximum point of scrolling and the maximum width of the map
            //the reason why we substract half the screen again is because we need to set our offset to the topleft position of our screen
            offset_x = maxX-half_width;
        }else{
            //the player is in between the 2 spots, so we set the offset to the player, minus the half-width of the screen
            offset_x = (int) (player.getX()-half_width);
        }

        return offset_x;
    }

    public int getYOffset(){
        int offset_y = 0;

        int half_heigth = (int) (Game.WINDOW_HEIGTH/Game.SCALE/2);

        int maxY = (int) (map.getHeight()*32)-half_heigth;

        if(player.getY() < half_heigth){
            offset_y = 0;
        }else if(player.getY() > maxY){
            offset_y = maxY-half_heigth;
        }else{
            offset_y = (int) (player.getY()-half_heigth);
        }

        return offset_y;
    }

在我的渲染方法中，我使用：

map.render(-(offset_x%32), -(offset_y%32), offset_x/32, offset_y/32, 33, 19);

这是问题的.gif文件，我在这里跳来跳去：http://i.gyazo.com/11efe44d6e872c334533cd3a40ddf2b9.gif

Answer 1

请尝试使用

，而不是为地图渲染偏移量

{{1}}

这种方式更易于管理，你的相机的坐标将与玩家联系在一起。

Java / Slick2D相机不跟随字符

1 个答案: