Organic Builder 2007-03-17
Organic Builder demonstrates an artificial chemistry.
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0.00 
GPL
0K
Windows Vista 
Organic Builder demonstrates an artificial chemistry. Each circle is an atom, that floats around and can become bonded to others to form a molecule.
The reason for using a strange abstraction of chemistry like this is that you can do some really cool things in a simple system. This freeware takes you through some of the possibilities.
Perhaps the coolest thing you can do is template replication - the process DNA uses to make copies of itself. If you choose the right rules you can actually get this working - follow through the challenges to find out how.
The reason for using a spatial system, with atoms bouncing off each other, is that you can then do things like make a membrane out of atoms, and use it to make compartments in the space. Again, some of the challenges explore this idea.
Organic Builder's interface is intuitive and is composed of two distinct parts: the collision arena on the right, full of bouncing atoms, and the controls part on the left.
At the bottom of the controls area is a list box, showing the reactions that are currently active in the arena. There aren't any to start with (so no reactions happen) but you can add some by using the reaction editor controls just above.
To specify a reaction, use the drop-down lists to choose the type (a-f) and state (0,1...) of the two atoms that are to react. Use the tick box between them to specify whether they should be unbonded before the reaction (no tick) or bonded (tick). Then, on the right of the 'produces' symbol (=>) specify the final states of each atom, and whether the two atoms should be bonded afterwards (tick) or unbonded (no tick). Thus you can bond two atoms together, or break them apart, or simply change their states and leave them as they were.
The list of reactions can be manipulated as a simple list. In this case, the reaction editor will be used to add reaction one by one. To delete any numbers of reactions, you will need to select them and use the delete button. Use the clean button to delete all reactions. But this list can also be used like a text editor by using the edit button. In this case, you can type reactions in by hand if you prefer, or copy-and-paste from an external editor. Use the update button to let the system know that you have finished editing - it will tell you if it couldn't parse your text.
You can pause and run the collision arena using the buttons at the top. The reset button allows you to get rid of all the bonds that have been made, and reset the atom states to their starting values (usually all zeroes). Finally, the levels selector in the control bar lets you choose which level to explore (but work through them sequentially to start with).
Requirements
tags
you can use the using the the reaction that you the right two atoms start with that are reaction editor the two this case the controls
Download Organic Builder 2007-03-17
Download Organic Builder 2007-03-17
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