High Level 2D API (Monkey2's Mojo port)

@Sascha217 wrote:

Hi,

I'd like to share this with you, maybe someone else will find it useful.
Since monogame doesn't have an build-in/easy to use high-level 2d API, except SpriteBAtch, I more or less ported Monkey2's 2D Drawing API .

2d-NormalMapping is not yet implemented, but lighting & shadows

https://github.com/sascha-schmidt217/monogame-mojo

Example:

 
using Microsoft.Xna.Framework;
using Microsoft.Xna.Framework.Graphics;
using Microsoft.Xna.Framework.Input;
using System.Collections.Generic;
using Mojo.Graphics;
namespace Example
{
    public class Game1 : MojoGame
    {
        private const float RAD_TO_DEG = 57.2957795130823208767981548141052f;
        private Image _floor;
    private Image _logo;
    private float _viewRot;
    private float _lightRot;

    public Game1() : base(640,480,false)
    {
        Content.RootDirectory = "Content";
    }

    protected override void LoadContent()
    {
        base.LoadContent();
        base.LightingEnabled = true;

        _floor = new Image("Images/tiles");
        _logo = new Image("Images/logo");
        _logo.ShadowCaster = new ShadowCaster(_logo.Width / 2, 24);
    }

    protected override void Update(GameTime gameTime)
    {
        if (GamePad.GetState(PlayerIndex.One).Buttons.Back == ButtonState.Pressed || Keyboard.GetState().IsKeyDown(Keys.Escape))
            Exit();

        base.Update(gameTime);
    }

    protected override void Draw(GameTime gameTime)
    {
        var mouse = Mouse.GetState();
      
        _viewRot += 0.001f;
        _lightRot += 0.02f;

        // Set Ambient color used for lighting
        Canvas.TextureFilteringEnabled = true;
        Canvas.AmbientColor = new Color(32, 32, 32);
        Canvas.Clear(Color.Black);

        Canvas.Translate(Width / 2, Height / 2);
        Canvas.Scale((float)System.Math.Sin(_viewRot * 3) * 0.25f + 1.25f, (float)System.Math.Cos(_viewRot * 5) * 0.25f + 1.25f);
        Canvas.Rotate(_viewRot* RAD_TO_DEG);
        Canvas.Translate(-Width / 2, -Height / 2);

        // Draw background
        Canvas.Color = Color.White;
        for (int x = 0; x < Width; x += _floor.Width)
        {
            for (int y = 0; y < Height; y += _floor.Height)
            {
                Canvas.DrawImage(_floor, x, y);
            }
        }

        // Draw sprites
        for (float an = 0; an < System.Math.PI * 2; an += (float)System.Math.PI * 2 / 8)
        {
            float xx = Width / 2 + (float)System.Math.Cos(an) * Width / 4;
            float yy = Height / 2 + (float)System.Math.Sin(an) * Height / 4;
            Canvas.DrawImage(_logo, xx, yy);
        }

        var mat = Canvas.Matrix;
        Canvas.ResetMatrix();

        // add lights
        var rnd = new System.Random(0);
        for(int i = 0; i < 4; ++i)
        {
            Canvas.Color = new Color(rnd.Next(128, 255), rnd.Next(128, 255), rnd.Next(128, 255));
            Canvas.AddSpotLight(mouse.X, mouse.Y, _lightRot * RAD_TO_DEG + i * 90, 512, 15, 35, 4, 16);
        }

        Canvas.SetMatrix(mat);

        base.Draw(gameTime);
    }
}
}

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