HealthBar

// Code Created by Wellington Pires

using SiliconStudio.Core.Mathematics;
using SiliconStudio.Paradox.Engine;
using SiliconStudio.Paradox.Graphics;
using SiliconStudio.Paradox.UI;
using SiliconStudio.Paradox.UI.Controls;
using SiliconStudio.Paradox.UI.Panels;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace HealthBar
{
    public class UIScript : AsyncScript
    {
        private Canvas gameRoot;
        private SpriteSheet uiImages;
       // private UIImageGroup uiImages;
        private ImageElement fillHP;
        private ImageElement fillMP;
        private SpriteFont spriteFont;

        private Button hpButtonIncrement;
        private Button hpButtonDecrement;
        private Button mpButtonIncrement;
        private Button mpButtonDecrement;

        private float fillHPWidth = 551.0f;
        private float fillHPHeight = 82.0f;

        private float fillMPWidth = 558.0f;
        private float fillMPHeight = 86.0f;

        public void Start()
        {
            uiImages = Asset.Load<SpriteSheet>("UIImages");
            spriteFont = Asset.Load<SpriteFont>("Font");

            createHealthBarUI();

            Entity.Get<UIComponent>().RootElement = gameRoot;
        }

        public override async Task Execute()
        {
            Start();
            hpButtonIncrement.Click += (s, e) => HPButtonIncrementClick();
            hpButtonDecrement.Click += (s, e) => HPButtonDecrementClick();

            mpButtonIncrement.Click += (s, e) => MPButtonIncrementClick();
            mpButtonDecrement.Click += (s, e) => MPButtonDecrementClick();

            while(Game.IsRunning) {
                await Script.NextFrame();
            }
        }

        private void HPButtonIncrementClick()
        {

            if (fillHP.Source.Region.Width < fillHPWidth)
            {
                var region = fillHP.Source.Region;

                region.Width += 10.0f;

                fillHP.Source.Region = region;
            }

        }

        private void HPButtonDecrementClick()
        {
            if (fillHP.Source.Region.Width > 0)
            {
                var region = fillHP.Source.Region;

                region.Width -= 10.0f;

                fillHP.Source.Region = region;
            }
        }

        private void MPButtonIncrementClick()
        {

            if (fillMP.Source.Region.Width < fillMPWidth)
            {
                var region = fillMP.Source.Region;

                region.Width += 10.0f;

                fillMP.Source.Region = region;
            }

        }

        private void MPButtonDecrementClick()
        {
            if (fillMP.Source.Region.Width > 0)
            {
                var region = fillMP.Source.Region;

                region.Width -= 10.0f;

                fillMP.Source.Region = region;
            }
        }

        private void createHealthBarUI()
        {

            var charInfo = new ImageElement
            {
                Source = uiImages["CharInfo"],
            };
            charInfo.Size = new Vector3(charInfo.Source.Region.Width, charInfo.Source.Region.Height, 1f);
            charInfo.SetCanvasRelativePosition(new Vector3(0f, 0f, 1f));

            #region HP

            fillHP = new ImageElement
            {
                Source = uiImages["FillHP"]
            };
            fillHP.Size = new Vector3(fillHPWidth, fillHPHeight, 1f);
            fillHP.SetCanvasRelativePosition(new Vector3(0.148f, 0.039f, 1f));

            var hpText = new TextBlock
            {
                Font = spriteFont,
                Text = "HP",
                TextColor = Color.White,
                HorizontalAlignment = HorizontalAlignment.Center,
                VerticalAlignment = VerticalAlignment.Center
            };
            hpText.SetCanvasRelativePosition(new Vector3(0.35f, 0.6f, 0f));

            hpButtonIncrement = new Button
            {
                Content = new TextBlock
                {
                    Font = spriteFont,
                    Text = "+",
                    TextColor = Color.White,
                    HorizontalAlignment = HorizontalAlignment.Center,
                    VerticalAlignment = VerticalAlignment.Center
                },
                Padding = new Thickness(5, 5, 5, 5),
                MinimumWidth = 50f,
            };
            hpButtonIncrement.SetCanvasRelativePosition(new Vector3(0.3f, 0.7f, 0f));

            hpButtonDecrement = new Button
            {
                Content = new TextBlock
                {
                    Font = spriteFont,
                    Text = "-",
                    TextColor = Color.White,
                    HorizontalAlignment = HorizontalAlignment.Center,
                    VerticalAlignment = VerticalAlignment.Center
                },
                Padding = new Thickness(5, 5, 5, 5),
                MinimumWidth = 50f,
            };
            hpButtonDecrement.SetCanvasRelativePosition(new Vector3(0.4f, 0.7f, 0f));

            #endregion

            #region MP

            fillMP = new ImageElement
            {
                Source = uiImages["FillMP"]
            };
            fillMP.Size = new Vector3(fillMPWidth, fillMPHeight, 1f);
            fillMP.SetCanvasRelativePosition(new Vector3(0.146f, 0.176f, 1f));

            var mpText = new TextBlock
            {
                Font = spriteFont,
                Text = "MP",
                TextColor = Color.White,
                HorizontalAlignment = HorizontalAlignment.Center,
                VerticalAlignment = VerticalAlignment.Center
            };
            mpText.SetCanvasRelativePosition(new Vector3(0.55f, 0.6f, 0f));


            mpButtonIncrement = new Button
            {
                Content = new TextBlock
                {
                    Font = spriteFont,
                    Text = "+",
                    TextColor = Color.White,
                    HorizontalAlignment = HorizontalAlignment.Center,
                    VerticalAlignment = VerticalAlignment.Center
                },
                Padding = new Thickness(5, 5, 5, 5),
                MinimumWidth = 50f,
            };
            mpButtonIncrement.SetCanvasRelativePosition(new Vector3(0.5f, 0.7f, 0f));

            mpButtonDecrement = new Button
            {
                Content = new TextBlock
                {
                    Font = spriteFont,
                    Text = "-",
                    TextColor = Color.White,
                    HorizontalAlignment = HorizontalAlignment.Center,
                    VerticalAlignment = VerticalAlignment.Center
                },
                Padding = new Thickness(5, 5, 5, 5),
                MinimumWidth = 50f,
            };
            mpButtonDecrement.SetCanvasRelativePosition(new Vector3(0.6f, 0.7f, 0f));

            #endregion

            gameRoot = new Canvas();
            gameRoot.Children.Add(charInfo);
            gameRoot.Children.Add(fillHP);
            gameRoot.Children.Add(fillMP);

            gameRoot.Children.Add(hpText);
            gameRoot.Children.Add(hpButtonIncrement);
            gameRoot.Children.Add(hpButtonDecrement);

            gameRoot.Children.Add(mpText);
            gameRoot.Children.Add(mpButtonIncrement);
            gameRoot.Children.Add(mpButtonDecrement);
        }
    }
}