Create cycle_color_on_light.yaml
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Nate Harris
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# This script will step through (forwards or backwards) a list of assigned colors for an RGB light entity
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# Credit: https://gist.github.com/mdolnik/7147b5df4b08f7979afad02a5dd137a2
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# Credit: https://community.home-assistant.io/t/trying-to-cycle-through-colors-on-a-hue-bulb-each-time-a-button-is-pressed/493249/3
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blueprint:
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name: Cycle color on a light
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description: >-
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A script that increments or decrements a color on a light.
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domain: script
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source_url: https://github.com/nwithan8/configs/blob/main/home_assistant/blueprints/scripts/cycle_color_on_light.yaml
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input:
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light:
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name: Light
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description: "The Light entity or Light Group entity to loop through the colors chosen below."
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selector:
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entity:
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domain:
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- light
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- group
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multiple: false
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color_tracker:
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name: Color state helper
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description: An input number helper to store the current color in
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selector:
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entity:
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domain: input_number
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color_1:
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name: Color 1
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description: "Set to black to omit this color."
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default:
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- 0
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- 0
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- 0
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selector:
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color_rgb: {}
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color_2:
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name: Color 2
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description: "Set to black to omit this color"
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default:
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- 0
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- 0
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- 0
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selector:
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color_rgb: {}
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color_3:
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name: Color 3
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description: "Set to black to omit this color"
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default:
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- 0
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- 0
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- 0
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selector:
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color_rgb: {}
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color_4:
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name: Color 4
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description: "Set to black to omit this color"
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default:
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- 0
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- 0
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- 0
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selector:
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color_rgb: {}
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color_5:
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name: Color 5
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description: "Set to black to omit this color"
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default:
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- 0
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- 0
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- 0
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selector:
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color_rgb: {}
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color_6:
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name: Color 6
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description: "Set to black to omit this color"
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default:
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- 0
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- 0
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- 0
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selector:
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color_rgb: {}
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color_7:
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name: Color 7
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description: "Set to black to omit this color"
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default:
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- 0
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- 0
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- 0
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selector:
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color_rgb: {}
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color_8:
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name: Color 8
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description: "Set to black to omit this color"
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default:
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- 0
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- 0
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- 0
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selector:
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color_rgb: {}
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color_9:
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name: Color 9
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description: "Set to black to omit this color"
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default:
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- 0
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- 0
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- 0
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selector:
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color_rgb: {}
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color_10:
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name: Color 10
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description: "Set to black to omit this color"
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default:
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- 0
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- 0
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- 0
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selector:
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color_rgb: {}
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color_11:
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name: Color 11
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description: "Set to black to omit this color"
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default:
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- 0
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- 0
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- 0
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selector:
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color_rgb: {}
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color_12:
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name: Color 12
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description: "Set to black to omit this color"
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default:
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- 0
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- 0
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- 0
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selector:
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color_rgb: {}
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# Only single, otherwise could flood with attempts
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mode: single
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fields:
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transition:
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name: Transition Time
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description: "Choose the time it takes to move to the next color."
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selector:
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duration: {}
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default:
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hours: 0
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minutes: 0
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seconds: 1
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decrement:
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name: Decrement
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description: Go backwards instead of forward in the color list
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required: true
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selector:
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boolean:
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variables:
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light: !input "light"
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color_tracker: !input "color_tracker"
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transition_seconds: "{{ ((transition.hours)*60*60) + ((transition.minutes)*60)
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+ transition.seconds }}"
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color_rgbs:
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- !input "color_1"
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- !input "color_2"
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- !input "color_3"
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- !input "color_4"
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- !input "color_5"
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- !input "color_6"
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- !input "color_7"
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- !input "color_8"
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- !input "color_9"
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- !input "color_10"
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- !input "color_11"
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- !input "color_12"
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# Convert the array of RGB colors to a comma separated list of HSV values.
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# Exclude any colors set to black.
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# https://community.home-assistant.io/t/using-hsv-hsb-to-set-colored-lights/15472
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# https://github.com/home-assistant/core/issues/33678#issuecomment-609424851
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# https://stackoverflow.com/a/56141280/4147996
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color_hsv_list_csv: >-
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{%- set data = namespace(entries=[]) -%}
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{%- for color_rgb in color_rgbs -%}
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{%- if color_rgb != [0,0,0] -%}
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{%- set r = (color_rgb[0]/255) -%}
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{%- set g = (color_rgb[1]/255) -%}
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{%- set b = (color_rgb[2]/255) -%}
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{%- set maxRGB = max(r,g,b) -%}
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{%- set minRGB = min(r,g,b) -%}
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{%- set chroma = maxRGB - minRGB -%}
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{%- if chroma == 0 -%}
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{%- set h = 0 -%}
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{%- set s = 0 -%}
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{%- set v = maxRGB -%}
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{%- else -%}
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{%- if r == minRGB -%}
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{%- set h = 3-((g-b)/chroma) -%}
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{%- elif b == minRGB -%}
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{%- set h = 1-((r-g)/chroma) -%}
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{%- else -%}
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{%- set h = 5-((b-r)/chroma) -%}
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{%- endif -%}
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{%- set h = 60 * h -%}
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{%- set s = chroma / maxRGB -%}
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{%- set v = maxRGB -%}
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{%- endif -%}
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{%- set h = h|round(2)|string -%}
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{%- set s = s|round(2)|string -%}
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{%- set v = v|round(2)|string -%}
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{%- set comma_sep = h + "|" + s + "|" + v -%}
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{%- set data.entries = data.entries + [comma_sep] -%}
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{%- endif -%}
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{%- endfor -%}
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{{ data.entries | join(",") }}
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color_hsv_list: '{{ color_hsv_list_csv.split(",") }}'
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color_count: "{{ color_hsv_list | length | int - 1}}"
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sequence:
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- variables:
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# Next color index to change to.
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i_next: >
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{% set idx = 0 %}
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{% if decrement %}
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{% set idx = states(color_tracker) | int - 1 %}
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{% if idx < 0 %}
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{% set idx = color_count %}
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{% endif %}
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{% else %}
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{% set idx = states(color_tracker) | int + 1 %}
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{% if idx > color_count %}
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{% set idx = 0 %}
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{% endif %}
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{% endif %}
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{{ idx }}
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# Get the H/S of next colors.
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hsv_next_csv: "{{ color_hsv_list[i_next] }}"
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hue_next: '{{ hsv_next_csv.split("|")[0] }}'
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sat_next: '{{ (hsv_next_csv.split("|")[1])|float * 100 }}'
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# Light to interact with
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lights_to_change: "{{
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expand(light)
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| selectattr('domain', 'eq', 'light')
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| map(attribute='entity_id')
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| list
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}}"
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- service: light.turn_on
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target:
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entity_id: "{{ lights_to_change }}"
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data:
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hs_color: "{{ [hue_next, sat_next] }}"
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transition: "{{ transition_seconds }}"
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- service: input_number.set_value
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entity_id: !input "color_tracker"
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data:
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value: "{{ i_next | int }}"
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