Setting attributes of a grid cell

[Stephen Davies]

Happy new year!

Is there a preferred "Mesa way" to set attributes on a cell of a mesa.space Grid?

To be clear: I do have agents that occupy spaces in the grid, and those agents have attributes. But I would also like to give each cell attribute values that remain attached to that cell even when agents move in and out of there. (For example, in E&A's Sugarscape, not only do agents have attributes like vision and metabolism, but each cell on the sugarscape also has attributes like current level of sugar and max sugar capacity.)

I could make a separate data structure, whose coordinates exactly mimic those of my SingleGrid object, to hold those attributes, but I wonder if I'm missing a more elegant way that the Mesa designers intended the classes in mesa.space to be used.

- Stephen

[Tom Pike]

Typically,  a "resource agent" is just added to the grid.

Here is an Sugarscape using the trading variation from "Growing Artificial Society"....

https://github.com/tpike3/SugarScape/tree/master/Initial/NetScape_Standard 

Here is Wolf-Sheep Predation example with grass as grid attribute...

https://github.com/projectmesa/mesa/tree/master/examples/wolf_sheep/wolf_sheep 

[Stephen Davies (sdavies)]

Ah, I see. Question: is there any way to follow the approach you suggest but still use a SingleGrid? (I like the functionality of the SingleGrid for my immediate purpose, since there can only be one agent in a cell at a time. However, if I need to add a dummy "resource agent" permanently to each cell, I'm guessing that's not an option?)

Thanks for the response in any event!

- Stephen

________________________________________
From: proje...@googlegroups.com <proje...@googlegroups.com> on behalf of Tom Pike <thomas...@gmail.com>
Sent: Friday, January 1, 2021 4:57 PM
To: ProjectMesa
Subject: [projectmesa] Re: Setting attributes of a grid cell

Typically, a "resource agent" is just added to the grid.

Here is an Sugarscape using the trading variation from "Growing Artificial Society"....

https://github.com/tpike3/SugarScape/tree/master/Initial/NetScape_Standard

Here is Wolf-Sheep Predation example with grass as grid attribute...

https://github.com/projectmesa/mesa/tree/master/examples/wolf_sheep/wolf_sheep

On Friday, January 1, 2021 at 1:11:03 PM UTC-5 stephencl...@gmail.com wrote:
Happy new year!

Is there a preferred "Mesa way" to set attributes on a cell of a mesa.space<http://secure-web.cisco.com/1gokAGRwchiwMaXv8JciKHUVffsGEDSF0vOaP7PMifRgrZ6XVHhj7mLmNYdj7k1iaZPIS5qWs6tkaJwfUxRXf6amBHfy9Qk7mCCICkn6pRiFBzQOcaK3Cg7NsBqEk_hxSSp2bFpDZQ090Elgu2VxpFX6jlqQU0ISDdywuTlR8ixIa_WTlFIPPTdHe9Mw7WNPp3IJnk-Bg-EB58wle94VrPFpdUOjg_L_IxCKPZdJ6edoa0zSf5F1as0PSALHcPP-FZChXgdG0JC1QAzG2njeJAp24GQjdvYfKurZgrArlZrPBgKHFxiHYv3SnWq3kjCy8ywWiD85K0pQi5DAcZ8yYrQ/http%3A%2F%2Fmesa.space> Grid?

To be clear: I do have agents that occupy spaces in the grid, and those agents have attributes. But I would also like to give each cell attribute values that remain attached to that cell even when agents move in and out of there. (For example, in E&A's Sugarscape, not only do agents have attributes like vision and metabolism, but each cell on the sugarscape also has attributes like current level of sugar and max sugar capacity.)

I could make a separate data structure, whose coordinates exactly mimic those of my SingleGrid object, to hold those attributes, but I wonder if I'm missing a more elegant way that the Mesa designers intended the classes in mesa.space<http://secure-web.cisco.com/1gokAGRwchiwMaXv8JciKHUVffsGEDSF0vOaP7PMifRgrZ6XVHhj7mLmNYdj7k1iaZPIS5qWs6tkaJwfUxRXf6amBHfy9Qk7mCCICkn6pRiFBzQOcaK3Cg7NsBqEk_hxSSp2bFpDZQ090Elgu2VxpFX6jlqQU0ISDdywuTlR8ixIa_WTlFIPPTdHe9Mw7WNPp3IJnk-Bg-EB58wle94VrPFpdUOjg_L_IxCKPZdJ6edoa0zSf5F1as0PSALHcPP-FZChXgdG0JC1QAzG2njeJAp24GQjdvYfKurZgrArlZrPBgKHFxiHYv3SnWq3kjCy8ywWiD85K0pQi5DAcZ8yYrQ/http%3A%2F%2Fmesa.space> to be used.

- Stephen

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[Tom Pike]

The only way to have a resource agent and other agent on the grid u have to use multigrid.