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{{:Decider combinator/infobox}}
{{:Infobox:Decider combinator}}


The {{PAGENAME}} is part of the circuit network and one of three types of combinators available in the game. It is used to make comparisons of signals on the network. Signals can be compared using "is greater than" (>), "is less than" (<) or "is equal to" (=).
The Decider combinator is part of the circuit network and one of three types of combinators available in the game (with the other two being the [[constant combinator]] and [[arithmetic combinator]]). It is used to make comparisons of signals on the network. Signals can be compared using the following:
Input contacts are to the left in the above picture, outputs on the right.
 
[[File:decider_combinator_anim.png]]
 
*"is greater than" (<span style="color:#00FF00">></span>)
*"is less than" (<span style="color:#00FF00"><</span>)
*"greater than or equal to" (<span style="color:#00FF00">>=</span>)
*"less than or equal to" (<span style="color:#00FF00"><=</span>)
*"is equal to" (<span style="color:#00FF00">=</span>)
*"is not equal to" (<span style="color:#00FF00">!=</span>)
 
As shown in the picture below showing the GUI, the signal on the left is bring compared to that of the right.
 
[[File:decider_combinator_gui.png|350px|GUI of the decider combinator.]]


== Function ==
== Function ==
The internal logic process has three steps:
The internal logic process has three steps:


1) Values for each individual input signal(s) (items of the same name) on the red and green wires are summed within the combinator.
# Values for each individual input signal(s) (items of the same name) on the red and green wires are summed within the combinator.
# The decider combinator GUI specifies a "first" input signal, a comparison (>, <, =, >=, <=, !=), and a "second" input signal or constant.
# If the comparison returns true, the output is one or more signals with a value of 1 or the unchanged input value(s), or a single signal carrying either a sum of input signals or the number of passed tests. ([[#output_table|see table below]])
 
The decider combinator can handle [[Circuit network#Logic signals|logic signals]].
 
Further notes:


2) The Decider combinator GUI specifies a "first" input signal, a comparison (>, <, =), and a "second" input signal or constant.
* Using the Everything output with "Input count" will pass all non-zero input values to the output as long as the condition is true. Using the Everything output with "1" will output 1 ONLY for all non-zero inputs.
* The Each input will re-apply the comparison for each input signal individually, and will pass the selected output for each input that passes the conditional.
* The Everything input functions as a logical AND, and will return true only if ALL non-zero inputs pass the conditional, and returns true if there are no inputs at all (so "everything ≠ 0" always passes).
* The Anything input functions as a logical OR, and will return true if ANY non-zero input passes the conditional, and returns false if there are no inputs at all (so "anything = 0" always fails). If used for output, Anything will return one of the signals that matched.
* When "Input Count" is selected the output will match the input for the selected signal if the first parameter is not Each. If the first parameter is Each then "Input Count" refers to the value of the input signal that is currently being iterated, so the result will be the sum of all inputs if the output signal is not Each. If the output signal is also Each then every input signal that passes the test is simply forwarded while those that fail the test are discarded.


3) If the comparison returns true, the output is a new signal (any name) with either the input value of the selected signal, or 1.
<span id="output table"></span>The following table shows how different combinations of the first input parameter and the output can be used.


4) Using the Everything output with input -> output will pass all nonzero input values to the output as long as the condition is true. Using the Everything output with "1" will output 1 ONLY for all non-zero inputs.
{| class="wikitable" style="text-align: center"
|+Different output results when the test passes
|-
! ↓Output&nbsp;&nbsp;Input→ !! <span style="color:#FFFF99">Each</span> !! <span style="color:#99FF99">Anything</span>, <span style="color:#FF6666">Everything</span>, or a specific signal
|-
!style="text-align: left"| <span style="color:#FF6666">Everything</span>: 1
|rowspan="2"| - || every input signal is forwarded but set to 1
|-
!style="text-align: left"| <span style="color:#FF6666">Everything</span>: Input count
| every input signal is forwarded
|-
!style="text-align: left"| Specific signal: 1
| number of input signals<sup>†</sup> || the specific signal with value 1
|-
!style="text-align: left"| Specific signal: Input count
| sum of inputs<sup>†</sup> || the specific signal is forwarded
|-
!style="text-align: left"| <span style="color:#FFFF99">Each</span>: 1
| each input signal<sup>†</sup> is forwarded but set to 1 ||rowspan="2"| -
|-
!style="text-align: left"| <span style="color:#FFFF99">Each</span>: Input count
| each input signal<sup>†</sup> is forwarded
|-
!style="text-align: left"| <span style="color:#99FF99">Anything</span>: 1
|rowspan="2"| - || one input signal<sup>†</sup> is forwarded but set to 1
|-
!style="text-align: left"| <span style="color:#99FF99">Anything</span>: Input count
| one input signal<sup>†</sup> is forwarded
|-
|}


5) The Each input will re-apply the comparison for each input signal individually, and will pass the selected output for each input that passes the conditional.
† signals that passed the test only


6) The Everything input functions as a logical AND, and will return true only if ALL non-zero inputs pass the conditional.
With both the arithmetic and decider combinator, there is one tick (60th of a second) of latency before the output signal is ready to be used as an input into a circuit network.


7) The Anything input functions as a logical OR, and will return true if ANY non-zero input passes the conditional.
== History ==
{{history|1.1.13|
* Decider combinator can output an Anything signal, which returns exactly one matching signal.}}


The decider combinator can handle [[Automatic control/Virtual signals#Special signals|special signals]].
{{history|0.15.0|
* Added additional operators to the Decider Combinator and Circuit Conditions.}}


With both the Arithmetic and Decider combinator, there is one tick (60th of a second) of latency before the output signal is ready to be used as an input into a circuit network.
{{history|0.13.0|
* Connected wires are highlighted when hovering over a combinator connected to the [[circuit network]].
* Combinators show input and output in alt mode.
* More virtual signals for combinators.
* Constant combinator can be rotated.
* Decider combinator "input count" option makes the combinator copy the count of the specified output signal from the input signals, instead of copying the count from the condition.
* New combinator graphics. }}
 
{{history|0.12.5|
* Combinators now emit light.}}
 
{{history|0.12.2|
* Combinators no longer turn off when no wires are connected.}}
 
{{history|0.12.0|
* Introduced}}


== See Also ==
== See Also ==
* [[Arithmetic combinator]]
* [[Arithmetic combinator]]
* [[Constant Combinator]]
* [[Constant combinator]]
* [[Combinator Tutorial]] <-- Description of Combinator Logic Gates
* [[Tutorial:Combinator tutorial|Combinator tutorial]] (description of combinator logic gates)
* [[Circuit network]]
* [[Circuit network]]
* [[Tutorial:Circuit network cookbook|Circuit network cookbook]]
{{LogisticsNav}}
{{C|Circuit network}}

Latest revision as of 17:18, 17 December 2021

Decider combinator.png
 Decider combinator

DeciderSprite.png

Recipe

Time.png
0.5
+
Copper cable.png
5
+
Electronic circuit.png
5
→
Decider combinator.png
1

Total raw

Time.png
8
+
Copper plate.png
10
+
Iron plate.png
5

Recipe

Time.png
0.5
+
Copper cable.png
5
+
Electronic circuit.png
5
→
Decider combinator.png
1

Total raw

Time.png
14.25
+
Copper plate.png
22.5
+
Iron plate.png
10

Map color

Health

150

Stack size

50

Energy consumption

1 kw (electric)

Mining time

0.1

Prototype type

decider-combinator

Internal name

decider-combinator

Required technologies

Circuit network (research).png

Produced by

Assembling machine 1.png
Assembling machine 2.png
Assembling machine 3.png
Player.png

The Decider combinator is part of the circuit network and one of three types of combinators available in the game (with the other two being the constant combinator and arithmetic combinator). It is used to make comparisons of signals on the network. Signals can be compared using the following:

Decider combinator anim.png

  • "is greater than" (>)
  • "is less than" (<)
  • "greater than or equal to" (>=)
  • "less than or equal to" (<=)
  • "is equal to" (=)
  • "is not equal to" (!=)

As shown in the picture below showing the GUI, the signal on the left is bring compared to that of the right.

GUI of the decider combinator.

Function

The internal logic process has three steps:

  1. Values for each individual input signal(s) (items of the same name) on the red and green wires are summed within the combinator.
  2. The decider combinator GUI specifies a "first" input signal, a comparison (>, <, =, >=, <=, !=), and a "second" input signal or constant.
  3. If the comparison returns true, the output is one or more signals with a value of 1 or the unchanged input value(s), or a single signal carrying either a sum of input signals or the number of passed tests. (see table below)

The decider combinator can handle logic signals.

Further notes:

  • Using the Everything output with "Input count" will pass all non-zero input values to the output as long as the condition is true. Using the Everything output with "1" will output 1 ONLY for all non-zero inputs.
  • The Each input will re-apply the comparison for each input signal individually, and will pass the selected output for each input that passes the conditional.
  • The Everything input functions as a logical AND, and will return true only if ALL non-zero inputs pass the conditional, and returns true if there are no inputs at all (so "everything ≠ 0" always passes).
  • The Anything input functions as a logical OR, and will return true if ANY non-zero input passes the conditional, and returns false if there are no inputs at all (so "anything = 0" always fails). If used for output, Anything will return one of the signals that matched.
  • When "Input Count" is selected the output will match the input for the selected signal if the first parameter is not Each. If the first parameter is Each then "Input Count" refers to the value of the input signal that is currently being iterated, so the result will be the sum of all inputs if the output signal is not Each. If the output signal is also Each then every input signal that passes the test is simply forwarded while those that fail the test are discarded.

The following table shows how different combinations of the first input parameter and the output can be used.

Different output results when the test passes
↓Output  Input→ Each  Anything, Everything, or a specific signal
Everything: 1 - every input signal is forwarded but set to 1
Everything: Input count every input signal is forwarded
Specific signal: 1 number of input signals† the specific signal with value 1
Specific signal: Input count sum of inputs† the specific signal is forwarded
Each: 1 each input signal† is forwarded but set to 1 -
Each: Input count each input signal† is forwarded
Anything: 1 - one input signal† is forwarded but set to 1
Anything: Input count one input signal† is forwarded

† signals that passed the test only

With both the arithmetic and decider combinator, there is one tick (60th of a second) of latency before the output signal is ready to be used as an input into a circuit network.

History

  • 1.1.13:
    • Decider combinator can output an Anything signal, which returns exactly one matching signal.
  • 0.15.0:
    • Added additional operators to the Decider Combinator and Circuit Conditions.
  • 0.13.0:
    • Connected wires are highlighted when hovering over a combinator connected to the circuit network.
    • Combinators show input and output in alt mode.
    • More virtual signals for combinators.
    • Constant combinator can be rotated.
    • Decider combinator "input count" option makes the combinator copy the count of the specified output signal from the input signals, instead of copying the count from the condition.
    • New combinator graphics.
  • 0.12.5:
    • Combinators now emit light.
  • 0.12.2:
    • Combinators no longer turn off when no wires are connected.

See Also

Logistics

Energy & pipe distribution

Transport

Terrain

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