chooseFromSelection

Sent when the player must choose modes of a modal spell — for example, picking “choose one or both” on a charm, or selecting the modes of a Command.

Arguments

input.type is "chooseFromSelection". The remaining fields:

TypeScript

interface ChooseFromSelectionInput {
  presentation: PromptPresentation;
  options: Array<string>;
  minChoices: number;
  maxChoices: number;
}

Rust

#[serde(rename_all = "camelCase")]
pub struct ChooseFromSelectionInput {
    pub presentation: PromptPresentation,
    pub options: Vec<String>,
    pub min_choices: usize,
    pub max_choices: usize,
}

References: PromptPresentation

Rendering

The control depends on how many options may be chosen.

For a single choice (maxChoices of 1) the options are plain buttons — clicking one sends it immediately.

For multiple choices each option gets a checkbox and a counter; the player selects within minChoices–maxChoices, then confirms.

Beyond six options the list collapses into a type-to-filter field (search and pick), keeping long lists manageable.

Response

type ChooseFromSelectionOutput = { type: "selectionDecision"; chosenIndices: number[] };

Return the indices (into options) of the chosen modes.

Example

{
  "promptId": 7,
  "decidingPlayerId": "player-0",
  "input": {
    "type": "chooseFromSelection",
    "presentation": {
      "title": "Choose one or both",
      "targets": []
    },
    "options": ["Destroy target artifact.", "Destroy target enchantment."],
    "minChoices": 1,
    "maxChoices": 2
  }
}

{ "promptId": 7, "output": { "type": "selectionDecision", "chosenIndices": [0] } }