How do i get properties of an element.
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I want to get the pressure of the element so i can use it in the tpt.element_func() function.
i assume it would be something along the lines of local pressure = tpt.get_property("pressure") or something like that but im not sure. -
I would suggest looking at the Lua API: https://powdertoy.co.uk/Wiki/W/Powder_Toy_Lua_API.html
For pressure, you want this function: https://powdertoy.co.uk/Wiki/W/Lua_API:Simulation.html#simulation.pressure
Just remember to divide by 4, because the pressure map is on a 4x4 grid, so sim.pressure(25, 25) returns the pressure at 100, 100 normal coordinates
The simulation api page is a bit incomplete, but has all the functions listed. For getting / setting actual particle properties, I would suggest https://powdertoy.co.uk/Wiki/W/Lua_API:Simulation.html#simulation.partProperty -
i put local press = sim.pressure(x,y)/4 into the element code and it keeps spitting out something along the lines of 'coords are out of range (*the particle that is spitting out the error's current coords*)'
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So what if i were to do the same with temperture what would i do?
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tpt.get_property("temp",x,y)
Though this is considered 'outdated' and i'm too lazy to learn another way.
Edited once by QuanTech. Last: 30th Jul 2017 -
"Invalid property"
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@QuanTech (View Post)
The new way is
sim.partProperty(i, "temp") or sim.partProperty(i, sim.FIELD_TEMP)
Also yours should say "temp", not "temperature"
Edit: oh you fixed itEdited once by jacob1. Last: 30th Jul 2017 -
While im here can you real quickly let me know how to change the color of the element?
