Follow

package;

import flixel.FlxCamera;
import flixel.FlxG;
import flixel.FlxSprite;
import flixel.FlxState;
import flixel.text.FlxText;
import flixel.tile.FlxTileblock;
import flixel.tile.FlxTilemap;
import flixel.util.FlxAxes;
import flixel.util.FlxColor;

class PlayState extends FlxState
{
    var sprite:FlxSprite;
    var back:FlxTileblock;
    var walls:FlxTilemap;
    var statusText:FlxText;

    var timer:Float = 10;
    var styleNo:Int = 0;
    var currentStyle:FlxCameraFollowStyle = FlxCameraFollowStyle.LOCKON;

    override public function create()
    {
        super.create();

        back = new FlxTileblock(0, 0, FlxG.width * 2, FlxG.height * 2);
        back.loadTiles("assets/back-tile.png", 16, 16, 0);
        add(back);

        walls = new FlxTilemap();
        walls.loadMapFromCSV("assets/big-room-map.csv", "assets/tiles.png", 16, 16);
        add(walls);

        sprite = new FlxSprite("assets/sprite.png");
        sprite.x = walls.width / 2 - sprite.width / 2;
        sprite.y = walls.height / 2 - sprite.height / 2;
        sprite.velocity.set(160, 160);
        sprite.elasticity = 1;
        add(sprite);

        statusText = new FlxText();
        statusText.size = 16;
        statusText.text = "LOCKON";
        statusText.autoSize = false;
        statusText.wordWrap = false;
        statusText.fieldWidth = FlxG.width;
        statusText.color = FlxColor.WHITE;
        statusText.setBorderStyle(FlxTextBorderStyle.SHADOW, FlxColor.BLACK, 2, 1);
        statusText.alignment = FlxTextAlign.CENTER;
        statusText.screenCenter(FlxAxes.X);
        statusText.y = 8;
        statusText.scrollFactor.set();
        add(statusText);

        FlxG.camera.setScrollBoundsRect(0, 0, walls.width, walls.height, true);
        FlxG.camera.follow(sprite, currentStyle);
    }

    override public function update(elapsed:Float)
    {
        timer -= elapsed;
        if (timer <= 0)
        {
            timer = 10;
            styleNo++;
            if (styleNo >= 6)
                styleNo = 0;
            switch (styleNo)
            {
                case 0:
                    currentStyle = FlxCameraFollowStyle.LOCKON;
                case 1:
                    currentStyle = FlxCameraFollowStyle.NO_DEAD_ZONE;
                case 2:
                    currentStyle = FlxCameraFollowStyle.PLATFORMER;
                case 3:
                    currentStyle = FlxCameraFollowStyle.SCREEN_BY_SCREEN;
                case 4:
                    currentStyle = FlxCameraFollowStyle.TOPDOWN;
                case 5:
                    currentStyle = FlxCameraFollowStyle.TOPDOWN_TIGHT;
            }
            statusText.text = Std.string(currentStyle);
            FlxG.camera.follow(sprite, currentStyle);
        }

        super.update(elapsed);

        FlxG.collide(walls, sprite);
    }
}