Merge pull request #74 from DerThorsten/main

added pyb2d examples to content, added ipyevents to dependencies

Author: jtpio

content/pyolite/pyb2d/0_tutorial.ipynb

@@ -0,0 +1,123 @@
+{
+ "cells": [
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "import sys\n",
+    "if \"pyodide\" in sys.modules:\n",
+    "    import piplite\n",
+    "    await piplite.install('pyb2d-jupyterlite-backend>=0.4.2')"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "from b2d.testbed import TestbedBase\n",
+    "import random\n",
+    "import numpy\n",
+    "import b2d\n",
+    "\n",
+    "class ColorMixing(TestbedBase):\n",
+    "\n",
+    "    name = \"ColorMixing\"\n",
+    "\n",
+    "    def __init__(self, settings=None):\n",
+    "        super(ColorMixing, self).__init__(settings=settings)\n",
+    "        dimensions = [30, 30]\n",
+    "\n",
+    "        # the outer box\n",
+    "        box_shape = b2d.ChainShape()\n",
+    "        box_shape.create_loop(\n",
+    "            [\n",
+    "                (0, 0),\n",
+    "                (0, dimensions[1]),\n",
+    "                (dimensions[0], dimensions[1]),\n",
+    "                (dimensions[0], 0),\n",
+    "            ]\n",
+    "        )\n",
+    "        box = self.world.create_static_body(position=(0, 0), shape=box_shape)\n",
+    "\n",
+    "        fixtureA = b2d.fixture_def(\n",
+    "            shape=b2d.circle_shape(1), density=2.2, friction=0.2, restitution=0.5\n",
+    "        )\n",
+    "        body = self.world.create_dynamic_body(position=(13, 10), fixtures=fixtureA)\n",
+    "\n",
+    "        pdef = b2d.particle_system_def(\n",
+    "            viscous_strength=0.9,\n",
+    "            spring_strength=0.0,\n",
+    "            damping_strength=0.5,\n",
+    "            pressure_strength=0.5,\n",
+    "            color_mixing_strength=0.008,\n",
+    "            density=2,\n",
+    "        )\n",
+    "        psystem = self.world.create_particle_system(pdef)\n",
+    "        psystem.radius = 0.3\n",
+    "        psystem.damping = 1.0\n",
+    "\n",
+    "        colors = [\n",
+    "            (255, 0, 0, 255),\n",
+    "            (0, 255, 0, 255),\n",
+    "            (0, 0, 255, 255),\n",
+    "            (255, 255, 0, 255),\n",
+    "        ]\n",
+    "        posiitons = [(6, 10), (20, 10), (20, 20), (6, 20)]\n",
+    "        for color, pos in zip(colors, posiitons):\n",
+    "\n",
+    "            shape = b2d.polygon_shape(box=(5, 5), center=pos, angle=0)\n",
+    "            pgDef = b2d.particle_group_def(\n",
+    "                flags=b2d.ParticleFlag.waterParticle\n",
+    "                | b2d.ParticleFlag.colorMixingParticle,\n",
+    "                # group_flags=b2d.ParticleGroupFlag.solidParticleGroup,\n",
+    "                shape=shape,\n",
+    "                strength=1.0,\n",
+    "                color=color,\n",
+    "            )\n",
+    "            group = psystem.create_particle_group(pgDef)\n",
+    "\n"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "from pyb2d_jupyterlite_backend.async_jupyter_gui import JupyterAsyncGui\n",
+    "\n",
+    "s = JupyterAsyncGui.Settings()\n",
+    "s.resolution = [1000,500]\n",
+    "s.scale = 8\n",
+    "s.fps = 40\n",
+    "\n",
+    "tb = b2d.testbed.run(ColorMixing, backend=JupyterAsyncGui, gui_settings=s)"
+   ]
+  }
+ ],
+ "metadata": {
+  "kernelspec": {
+   "display_name": "Python 3 (ipykernel)",
+   "language": "python",
+   "name": "python3"
+  },
+  "language_info": {
+   "codemirror_mode": {
+    "name": "ipython",
+    "version": 3
+   },
+   "file_extension": ".py",
+   "mimetype": "text/x-python",
+   "name": "python",
+   "nbconvert_exporter": "python",
+   "pygments_lexer": "ipython3",
+   "version": "3.10.4"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 4
+}