public static class CourseStepFactory {
    public const float GroundY = -2.4f;
    public const float AerialY = -0.85f;
    public const float BasicSpacing = 0.58f;
    public const float ActionSpacing = 0.72f;
    public const float LandingSpacing = 0.64f;
    public const float AerialSpacing = 2.05f;

    public static CourseStep[] CreateEasyLoop() {
        return new CourseStep[] {
            Basic(),
            Jump(),
            Basic(GroundY, LandingSpacing),
            Aerial(),
            Basic(GroundY, LandingSpacing),
            Slide(SlideObstaclePattern.SlideLayout.CenterPair),
            Basic()
        };
    }

    public static CourseStep Basic(
        float yPosition = GroundY,
        float spawnInterval = BasicSpacing,
        Platform.MileagePattern mileagePattern = Platform.MileagePattern.SafeLine,
        GameManager.TutorialGuideType guideType = GameManager.TutorialGuideType.None,
        string title = "",
        string message = "",
        Platform.ItemPattern itemPattern = Platform.ItemPattern.None) {
        return Step(
            Platform.PlatformPattern.Empty,
            mileagePattern,
            SlideObstaclePattern.SlideLayout.Random,
            guideType,
            GroundY,
            spawnInterval,
            title,
            message,
            itemPattern,
            CoursePlatformType.Basic);
    }

    public static CourseStep Jump(
        Platform.PlatformPattern platformPattern = Platform.PlatformPattern.LowMid,
        float spawnInterval = ActionSpacing,
        GameManager.TutorialGuideType guideType = GameManager.TutorialGuideType.None,
        string title = "",
        string message = "") {
        return Step(
            platformPattern,
            Platform.MileagePattern.JumpArc,
            SlideObstaclePattern.SlideLayout.Random,
            guideType,
            GroundY,
            spawnInterval,
            title,
            message,
            Platform.ItemPattern.None,
            CoursePlatformType.Jump);
    }

    public static CourseStep Jump(
        GameManager.TutorialGuideType guideType,
        string title,
        string message) {
        return Jump(Platform.PlatformPattern.LowMid, ActionSpacing, guideType, title, message);
    }

    public static CourseStep Aerial(
        GameManager.TutorialGuideType guideType = GameManager.TutorialGuideType.None,
        string title = "",
        string message = "") {
        return Aerial(AerialY, AerialSpacing, guideType, title, message);
    }

    public static CourseStep Aerial(
        float yPosition,
        float spawnInterval,
        GameManager.TutorialGuideType guideType = GameManager.TutorialGuideType.None,
        string title = "",
        string message = "") {
        return Step(
            Platform.PlatformPattern.Empty,
            Platform.MileagePattern.SafeLine,
            SlideObstaclePattern.SlideLayout.Random,
            guideType,
            yPosition,
            spawnInterval,
            title,
            message,
            Platform.ItemPattern.None,
            CoursePlatformType.Basic);
    }

    public static CourseStep Slide(
        SlideObstaclePattern.SlideLayout slideLayout = SlideObstaclePattern.SlideLayout.CenterPair,
        float spawnInterval = ActionSpacing,
        GameManager.TutorialGuideType guideType = GameManager.TutorialGuideType.None,
        string title = "",
        string message = "") {
        return Step(
            Platform.PlatformPattern.Slide,
            Platform.MileagePattern.SlideLine,
            slideLayout,
            guideType,
            GroundY,
            spawnInterval,
            title,
            message,
            Platform.ItemPattern.None,
            CoursePlatformType.Slide);
    }

    public static CourseStep Slide(
        GameManager.TutorialGuideType guideType,
        string title,
        string message) {
        return Slide(SlideObstaclePattern.SlideLayout.CenterPair, ActionSpacing, guideType, title, message);
    }

    public static CourseStep ForceHit(
        GameManager.TutorialGuideType guideType = GameManager.TutorialGuideType.Damage,
        string title = "",
        string message = "",
        float spawnInterval = ActionSpacing) {
        return Step(
            Platform.PlatformPattern.ForceHit,
            Platform.MileagePattern.None,
            SlideObstaclePattern.SlideLayout.WidePair,
            guideType,
            GroundY,
            spawnInterval,
            title,
            message,
            Platform.ItemPattern.None,
            CoursePlatformType.ForceHit);
    }

    public static CourseStep Step(
        Platform.PlatformPattern platformPattern,
        Platform.MileagePattern mileagePattern,
        SlideObstaclePattern.SlideLayout slideLayout,
        GameManager.TutorialGuideType guideType,
        float yPosition,
        float spawnInterval,
        string title = "",
        string message = "",
        Platform.ItemPattern itemPattern = Platform.ItemPattern.None,
        CoursePlatformType coursePlatformType = CoursePlatformType.Basic) {
        return new CourseStep {
            coursePlatformType = coursePlatformType,
            platformPattern = platformPattern,
            mileagePattern = mileagePattern,
            slideLayout = slideLayout,
            itemPattern = itemPattern,
            guideType = guideType,
            yPosition = yPosition,
            spawnInterval = spawnInterval,
            title = title,
            message = message
        };
    }

    public static CourseStep[] CloneSteps(CourseStep[] source) {
        if(source == null)
        {
            return new CourseStep[0];
        }

        CourseStep[] steps = new CourseStep[source.Length];

        for(int i = 0; i < source.Length; i++)
        {
            CourseStep sourceStep = source[i];
            steps[i] = Step(
                sourceStep.platformPattern,
                sourceStep.mileagePattern,
                sourceStep.slideLayout,
                sourceStep.guideType,
                sourceStep.yPosition,
                sourceStep.spawnInterval,
                sourceStep.title,
                sourceStep.message,
                sourceStep.itemPattern,
                sourceStep.coursePlatformType);
        }

        return steps;
    }
}