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Line 127: − + − A simple gear and motor generated in Turtle Art: − − [[File:TAGearTA.png|300px]] − [[File:TAGear.png|300px]] − Line 135:
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Line 264: − + − * [http://bugs.sugarlabs.org/query?component=Physics&groupdesc=1&group=resolution&col=id&col=summary&col=owner&col=type&col=status&col=priority&col=milestone&col=time&col=changetime&col=reporter&order=priority Bug tracker]
→Downloads
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|valign="top"|[[Image:physics_pen.png|thumb|none|280px|Example illustrating the pen tool attached to the end of a pendulum.]]
|valign="top"|[[Image:physics_pen.png|thumb|none|280px|Example illustrating the pen tool attached to the end of a pendulum.]]
|valign="top"|[[Image:physics-tracing.png|thumb|none|280px|Tracing multiple objects]]
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|valign="top"|[[File:TAGearTA.png|thumb|none|280px|A simple gear and motor generated in Turtle Art]]
|valign="top"|[[File:TAGear.png|thumb|none|280px|rendered in Physics]]
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|valign="top"|[[Image:physics-tracing.png|thumb|none|280px|Tracing multiple objects]]
|valign="top"|[[File:Chain.png|thumb|none|280px|a chain generated in Turtle Art]]
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== Ideas to try ==
== Ideas to try ==
*Build a catapult to simulate Angry Bird
*Build a catapult to simulate Angry Birds
*Build a machine that sorts different sized balls in to two buckets, large and small, with no ball jams.
*Build a machine that sorts different sized balls in to two buckets, large and small, with no ball jams.
*A cyclic mechanism for lifting balls from the bottom of the screen to the top, again and again.
*A cyclic mechanism for lifting balls from the bottom of the screen to the top, again and again.
'''Note:''' The current model is cleared whenever the Erase button is pressed or a Clean block is run.
'''Note:''' The current model is cleared whenever the Erase button is pressed or a Clean block is run.
===== Example =====
===== Examples =====
'''For Turtle Blocks versions 107 - 183'''
'''For Turtle Blocks versions 107 - 183'''
[[File:TAgear.ta]] [[File:Gear.physics]]
[[File:TAgear.ta]] [[File:Gear.physics]]
[http://people.sugarlabs.org/walter/physics-plugin.tar.gz]
[http://people.sugarlabs.org/walter/physics-plugin.tar.gz]
'''A chain'''
'''Chain'''
Turtle Blocks project file: [http://people.sugarlabs.org/walter/chain.tb]
Turtle Blocks project file: [http://people.sugarlabs.org/walter/chain.tb]
[[File:Physics-plugin.tar.gz]] Physics plugin
[[File:Physics-plugin.tar.gz]] Physics plugin
[http://github.com/walterbender/physics-plugin git repository]
[https://github.com/sugarlabs/physics git repository on GitHub]
= Development =
= Development =
[[Image:PhysicsElements.png|160px|right]]
[[Image:PhysicsElements.png|160px|right]]
There are quite a few code layers to contend with. A regular Python Activity acts as a Sugar wrapper to Physics which is written using OLPCGames which itself wraps Pygame, Physics then uses Elements as a wrapper for Box2D.
There are quite a few code layers to contend with. A regular Python Activity acts as a Sugar wrapper to Physics which is written using SugarGames which itself wraps Pygame, Physics then uses Elements as a wrapper for Box2D.
==Video==
==Video==
* [http://activities.sugarlabs.org/en-US/sugar/addon/4193 Activity bundle]
* [http://activities.sugarlabs.org/en-US/sugar/addon/4193 Activity bundle]
* [http://git.sugarlabs.org/projects/physics GIT repository]
* [https://github.com/sugarlabs/physics/ GIT repository]
* [http://download.sugarlabs.org/sources/honey/Physics/ Source tarball]
* [http://download.sugarlabs.org/sources/honey/Physics/ Source tarball]