Topics

1

Graphics / How can i propper rezise my Background Image

« on: July 15, 2014, 07:47:51 am »

Good Morning Guy's,

i have a Problem i try to set my Background Image exactly too my Window Resolultion.

My Image Size is 1920,1080:

If i run the Game with a Desktop Resolution 1920,1080 everything is perfectly centered.

If i run now the Game with a Desktop Resolution 1600,900 the Image is always off and not centered i did try Transform, Scale everything i dont get centered im sure i do something wrong but it would be nice if you could give me a hint. (BTW. I use SFML.NET)

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Diagnostics;
using SFML.Window;
using SFML.Graphics;
using SFML.Audio;

namespace BushRaider64
{
    class BushRaider
    {
        //ScreenManager und Render Window

        private ScreenManager screenManager;
        public RenderWindow renderWindow;
        private Sprite background;
        private SpriteFactory spriteFactory;

        //Camera

        View view;

        //GameTime

        private const double frames = 60;
        private const double timeStep = 1 / frames;
        private double timeBank;
        private Stopwatch timer;
        private TimeSpan deltaTime;

        public BushRaider()
        {
            //Window Initialisieren

            VideoMode video = new VideoMode();
            video = VideoMode.DesktopMode;

            //Debug Code

            foreach(VideoMode item in VideoMode.FullscreenModes)
            {
                Console.WriteLine(item.Width + " + " + item.Height + " + " + item.BitsPerPixel);
            }
            Console.WriteLine(VideoMode.DesktopMode.Width + " + " + VideoMode.DesktopMode.Height );


            renderWindow = new RenderWindow(video, "BushRaider",Styles.Default);
            renderWindow.SetVisible(true);
            renderWindow.SetVerticalSyncEnabled(true);
            renderWindow.Closed += new EventHandler(onClosed);

            //Test Sprite

            spriteFactory = new SpriteFactory();
            background = spriteFactory.createSprite(new IntRect(0, 0, (int)video.Width, (int)video.Height), "GameAssets/logo.png");


            //GameTime Initialisieren

            timer = new Stopwatch();
            deltaTime = new TimeSpan();
            timer.Start();

            //Camera

            view = new View(new FloatRect(0, 0, VideoMode.DesktopMode.Width, VideoMode.DesktopMode.Height));
            renderWindow.SetView(view);

            this.Update();

        }

        public void Update()
        {
            while(renderWindow.IsOpen())
            {
                timeBank += deltaTime.TotalSeconds;

                if (timeBank >= timeStep)
                {
                    timeBank -= timeStep;
                }

                renderWindow.DispatchEvents();
                this.Draw();
                renderWindow.Display();

                deltaTime = timer.Elapsed;
                timer.Restart();
            }
        }

        public void Draw()
        {
            renderWindow.Clear(Color.Blue);
            renderWindow.Draw(background);
        }

        public void onClosed(Object sender, EventArgs e)
        {
            renderWindow.Close();
        }
    }
}
 

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using SFML.Window;
using SFML.Graphics;
using SFML.Audio;

namespace BushRaider64
{
    class SpriteFactory
    {
        public Sprite createSprite(IntRect rectangle, string fileName)
        {
            Texture texture = new Texture(fileName, rectangle);
            return new Sprite(texture, rectangle);
        }
    }
}
 

Thanks in Advance

Dolphin

2

General / Fixed TimeStep 1 Core nearly 100 %

« on: July 14, 2014, 10:12:35 am »

Dear Lady's and Gentlemen,

i have a Problem, i try to get a Fixed Timestep Loop running. I got it so far that it now has the same Framerate on 60 or 99999(and everything between).

If i use VSYNC the Programm need a whole Core to run this simple Program. --> http://snag.gy/kADOW.jpg

BUT

If i use SetMaxFrameRate(60) i use just 1 - 3 % of my CPU --> http://snag.gy/byQlA.jpg

Can somebody please tell me where is the Problem of my Code?

http://pastebin.com/5XtkgJDC

(click to show/hide)

using System;
using SFML.Window;
using SFML.Graphics;
using SFML.Audio;
using System.Diagnostics;
 
namespace SFML_Project_64_Bit
{
    class Program
    {
        static void Main(string[] args)
        {
            MySFMLProgram app = new MySFMLProgram();
            app.StartSFMLProgram();
        }
    }
    class MySFMLProgram
    {
 
        //Window and Cam
 
        public  RenderWindow _window;
        public  View camera;
 
 
        //Asset
 
        protected Texture playTexture;
        protected Sprite playSprite;
 
        //Time Vars
 
        const double frame = 60;
        const double timeStep = 1 / frame;
        double timeBank;
        TimeSpan dT;
       
 
        public void StartSFMLProgram()
        {
            LoadContent();
 
            //Render Window
 
            _window = new RenderWindow(new VideoMode(1280, 760), "SFML window");
            _window.SetVisible(true);
            //_window.SetFramerateLimit(60);
            _window.SetVerticalSyncEnabled(true);
            _window.Closed += new EventHandler(OnClosed);
 
            //Camera
 
            camera = new View(new Vector2f(0, 0), new Vector2f(1280, 760));
 
 
            //DeltaTime
 
            dT = new TimeSpan();
            Stopwatch timer = new Stopwatch();
            timer.Start();
           
            while (_window.IsOpen())
            {
                timeBank += dT.TotalSeconds;
                Console.WriteLine(timeBank);
 
                if (timeBank >= timeStep)
                {
                    camera.Rotation += 1f;
                    _window.SetView(camera);
                    timeBank -= timeStep;
                }
 
                _window.DispatchEvents();
                this.Draw();
 
                dT = timer.Elapsed;
                timer.Restart();
            }
        }
 
        public void Draw()
        {
            _window.Clear(Color.Red);
            _window.Draw(playSprite);
            _window.Display();
        }
 
        void OnClosed(object sender, EventArgs e)
        {
            _window.Close();
        }
 
        public void LoadContent()
        {
            playTexture = new Texture("GraphicAsset/playButton.png");
            playSprite = new Sprite(playTexture);
            playTexture.Smooth = true;
        }
    }
}

Greetings

Dolphin

3

General discussions / Some Question's about SFML

« on: July 07, 2014, 03:02:33 pm »

Dear Lady's and Gentlemen,

i am very new too Programming and i currently work with C# and XNA / Monogame.

I have some Question's about SFML, can i use SFML efficient with C# as Main Language or will i miss some Features / encounter more Bug's / Performance Issue?

Are there any real Product's that are createt with this Combination? (You may have Project links?)

Do i find Tutorial's for this or will it be hard to get into it?

Thanks for reading hope you can help me 

Greetings

Dolphin