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Switch-case possible as substitution for many if-statements?


mainnsto
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Question

Hi,

I have a LUA programming question  - for making a scene that helps HC2 heat panel control my AC via ZXT-120.

 

My end-goal (for now) is to set the Fan speed and AC mode (heat/cool/off) by the logic in the following table (explanation below)

 

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Explanation for table:
Setpoint is retrieved from Heat Panel. The deviation from setpoint is calculated from a global temp-variable subtracting setpoint to get the deviation. Based on that daviation AND the outside temperature, the AC will be set do fan speed and mode.

 

I realize that the amount of if statements would be too big for me to handle, so someone suggested to use "switch-case" (which i am not familiar with but is sort of understood). The below example was provided for me:

 

Quote

// High = 1, Medium= 2.......

//inde case
FanState[0]=x
FanState[1]=x
...

Array_Of_Temp_Offsets = INT[20]
Array_Of_Temp_Offsets[0]= -1.5
Array_Of_Temp_Offsets[0]= -1.0

//in your case
Active_Setpoint_Deviation_Array_Pos = 0
FOR j = 0 To Array_Of_Temp_Offsets size DO 
IF Array_Of_Temp_Offsets[j] +setpunt < tmp 
END_FOR
ELSE
Active_Setpoint_Deviation_Array_Pos = Active_Setpoint_Deviation_Array_Pos + 1

END_FOR;
Active_Setpoint_Deviation_Array_Pos = Active_Setpoint_Deviation_Array_Pos + 1


AC-setpoint = Fanstate[Active_Setpoint_Deviation_Array_Pos]

 

The problem is i still can't translate this to anything sensible in LUA.

 

Can anyone please help me?

 

 

 

 

Edited by mainnsto
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