import gosu.Gosu;

import org.jruby.*;
import org.jruby.runtime.builtin.IRubyObject;
import org.jruby.anno.JRubyMethod;
import static org.jruby.RubyNumeric.*;


public abstract class GosuProxy {
  public static void createGosuMethods(Ruby runtime) {
    RubyModule mGosu = runtime.getModule("Gosu");

    mGosu.defineAnnotatedMethods(GosuProxy.class);
  }

  @JRubyMethod(name = "milliseconds",
               module = true)
  public static IRubyObject milliseconds(IRubyObject module) {
    return module.getRuntime().newFixnum(Gosu.milliseconds());
  }


  @JRubyMethod(name = "distance",
               required = 4,
               module = true)
  public static IRubyObject distance(IRubyObject module, IRubyObject[] args) {
    double result = Gosu.distance(num2dbl(args[0]), num2dbl(args[1]), num2dbl(args[2]), num2dbl(args[3]));
    return module.getRuntime().newFloat(result);
  }


  @JRubyMethod(name = "angle",
               required = 4,
               module = true)
  public static IRubyObject angle(IRubyObject module, IRubyObject[] args) {
    double result = Gosu.angle(num2dbl(args[0]), num2dbl(args[1]), num2dbl(args[2]), num2dbl(args[3]));
    return module.getRuntime().newFloat(result);
  }


  @JRubyMethod(name = "angle_diff",
               required = 2,
               module = true)
  public static IRubyObject angleDiff(IRubyObject module, IRubyObject from, IRubyObject to) {
    double result = Gosu.angleDiff(num2dbl(from), num2dbl(to));
    return module.getRuntime().newFloat(result);
  }


  @JRubyMethod(name = "offset_x",
               required = 2,
               module = true)
  public static IRubyObject offsetX(IRubyObject module, IRubyObject angle, IRubyObject radius) {
    double result = Gosu.offsetX(num2dbl(angle), num2dbl(radius));
    return module.getRuntime().newFloat(result);
  }


  @JRubyMethod(name = "offset_y",
               required = 2,
               module = true)
  public static IRubyObject offsetY(IRubyObject module, IRubyObject angle, IRubyObject radius) {
    double result = Gosu.offsetY(num2dbl(angle), num2dbl(radius));
    return module.getRuntime().newFloat(result);
  }


  @JRubyMethod(name = "default_font_name",
               module = true)
  public static IRubyObject defaultFontName(IRubyObject module) {
    return module.getRuntime().newString(Gosu.defaultFontName());
  }


  @JRubyMethod(name = "random",
               required = 2,
               module = true)
  public static IRubyObject random(IRubyObject module, IRubyObject min, IRubyObject max) {
    return module.getRuntime().newFloat(Gosu.random(num2dbl(min), num2dbl(max)));
  }
}