public class WalljumpHandler implements Listener {

    public enum Direction {
        SOUTH,
        EAST,
        NORTH,
        WEST
    }

    public static Direction getExactDirection(Player player) {

        float yaw = player.getLocation().getYaw();
        yaw = yaw / 90;
        yaw = (float)Math.round(yaw);

        if (yaw == -4 || yaw == 0 || yaw == 4) {
            return Direction.SOUTH;
        } if (yaw == -1 || yaw == 3) {
            return Direction.EAST;
        } if (yaw == -2 || yaw == 2) {
            return Direction.NORTH;
        }if (yaw == -3 || yaw == 1) {
            return Direction.WEST;
        }

        return null;
    }

    @SuppressWarnings("deprecation")
    @EventHandler
    public void onWalljump(PlayerToggleSneakEvent e) {
        Player player = e.getPlayer();
        if (!player.isOnGround() && !player.isFlying() && player.getExp() >= 1) {

            boolean walljumped = false;
            if (getExactDirection(player) == Direction.EAST) {
                if (player.getLocation().add(0.5, 0, 0).getBlock().getType().isSolid()) {
                    player.playEffect(player.getLocation().add(0.5, 0, 0), Effect.STEP_SOUND, player.getLocation().add(0.5, 0, 0).getBlock().getType());
                    player.setVelocity(new Vector(player.getVelocity().getX() - 0.4, 0.90, player.getVelocity().getZ()));
                    walljumped = true;
                }
            } else if (getExactDirection(player) == Direction.WEST) {
                if (player.getLocation().subtract(0.5, 0, 0).getBlock().getType().isSolid()) {
                    player.playEffect(player.getLocation().subtract(0.5, 0, 0), Effect.STEP_SOUND, player.getLocation().subtract(0.5, 0, 0).getBlock().getType());
                    player.setVelocity(new Vector(player.getVelocity().getX() + 0.4,0.90, player.getVelocity().getZ()));
                    walljumped = true;
                }
            } else if (getExactDirection(player) == Direction.SOUTH) {
                if (player.getLocation().add(0, 0, 0.5).getBlock().getType().isSolid()) {
                    player.playEffect(player.getLocation().add(0, 0, 0.5), Effect.STEP_SOUND, player.getLocation().add(0, 0, 0.5).getBlock().getType());
                    player.setVelocity(new Vector(player.getVelocity().getX(), 0.90, player.getVelocity().getZ() - 0.4));
                    walljumped = true;
                }
            } else if (getExactDirection(player) == Direction.NORTH) {
                if (player.getLocation().subtract(0, 0, 0.5).getBlock().getType().isSolid()) {
                    player.playEffect(player.getLocation().subtract(0, 0, 0.5), Effect.STEP_SOUND, player.getLocation().subtract(0, 0, 0.5).getBlock().getType());
                    player.setVelocity(new Vector(player.getVelocity().getX(), 0.90, player.getVelocity().getZ() + 0.4));
                    walljumped = true;
                }
            }
            if (walljumped) {
                player.setExp(0);
                Assassin.getPlugin().recharge(player, 1);
            }
        }
    }
}