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sysrpl / Tiny.Sim Public

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A cross platform real time 2D/3D graphics and 2D physics simulation
library for Free Pascal

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GPL-3.0 license
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sysrpl/Tiny.Sim

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Tiny.Sim Highlights Demos Main Demo (1.1MB) Playground Demo (906KB)
Requirements Note

README.md

 Tiny.Sim

A tiny cross platform library for rendering real time animated 2D/3D
graphics and 2D physics simulations.

 Highlights

Here are a few notable highlights of this project:

  * This library has been tested and works well on Linux, macOS,
    Windows, and Raspberry Pi computers.
  * It features a full vector drawing canvas and supporting objects
    such as fonts, bitmaps, brushes, pens, transforms, and render
    buffers.
  * It has a mostly complete 2D physics simulation engine with many
    entity types and physics collision feedback control.
  * The user interface widgets are custom drawn, uses custom theming,
    and has tooltips.
  * SVG document loading and rendering is supported and can make use
    of CSS (both inline and <style> elements) for most SVG
    attributes.
  * Input supports mouse, keyboard, and gamepads if present.
  * Rendering and physics calculations are processed on their own
    threads.
  * Two prebuilt Linux demos are included, with each demo having
    several sub-demos.

 Demos

Two demos are included in this project, along with binaries of those
demos for Linux. I have built and tested them on all platforms, but
only the Linux binaries are included in this repository. They are
located in the bin folder.

Below is a brief description of the two demos.

 Main Demo (1.1MB)

The main demo aptly named 'demo' features 9 different scenes, each
one highlighting a different aspect of the Tiny library. The demo
makes use of the custom widget system to allow the user to alter
different aspects of each scene.

Keyboard keys 1-9 switch between scenes. Alternately the toolbar atop
the main window can be used to switch scenes. The toolbar also
features a performance graph, vertical sync toggle, and fullscreen
toggle. Below are some screen images from the main demo.

demo 8

demo 9

demo 6

demo 1

 Playground Demo (906KB)

The playground demo features SVG and physics simulation. Upon launch
of the playground you'll be asked to select a scene.

The draw physics scene simulates a cartoon environment where you may
draw open or closed shapes with the mouse. When the mouse is lifted,
the drawn shape becomes live interacting with other shapes in the
scene. You may use a tool option to allow the mouse to pick up and
move any shapes you have placed in the scene. Also included is an
easer to remove parts of your drawing.

The SVG icons and SVG image scenes load various SVG documents from
disk and provides you with the ability to zoom, rotate, pan, and turn
on or off certain SVG features. An animate feature to zoom or rotate
the vector drawing is included. Please note, every SVG element / line
/ fill is redrawn each frame. The point is the SVG data is redrawn in
real time, and these demos show that SVG can be suitably used in 2D
real time animation if rendered through hardware.

The blueprint demo loads an SVG document and whatever is inside the
document as a 2D machine simulation. Mortars, springs, hinges,
material properties (bounciness, density, and more) are all
supported. While the machine is simple, maybe some of you can edit
the SVG document to make more interesting machines.

playground 1 playground 2

 Requirements

Tiny uses SDL for cross platform OpenGL context creation and window
management. If your target platform is Linux you'll need the
libsdl-dev package installed to compile, or just libsdl2 to run. On
Windows simply have SDL2.dll in the same directory as your programs.

 Note

Please note, I have been busy working on a more extensive toolkit for
this library, including many UI controls, a JSON based UI builder, a
new SVG based theming system. better SVG gradient support,
integration of my 3D graphic and shader tools, MP3 and OGG audio
support, and more. However, as I am working on this project all by
myself it is taking me longer than expected to complete all these
tasks. Rather than waiting until I have everything done (I keep
adding in new features), I have decided to publish this project from
a snapshot I took this past February with a few minor additions from
my current build.

In light of the previous paragraph, if anyone wishes to use the
library as is in this release, please feel free. Additionally, if
anyone would like to volunteer to help out, let me know at
admin@getlazarus.org and we can form a discord channel or private
message board on my forums.

About

A cross platform real time 2D/3D graphics and 2D physics simulation
library for Free Pascal

Resources

Readme

License

GPL-3.0 license

Stars

52 stars

Watchers

2 watching

Forks

3 forks

Releases

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Packages 0

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Languages

  * Pascal 75.3%
  * C 24.7%

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