{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "title": "Image Catalog",
  "type": "object",
  "additionalProperties": false,
  "required": ["schemaVersion", "images"],
  "properties": {
    "schemaVersion": {
      "type": "integer",
      "minimum": 1
    },
    "images": {
      "type": "array",
      "items": {
        "type": "object",
        "additionalProperties": false,
        "required": [
          "id",
          "name",
          "description",
          "width",
          "height",
          "pixelScale",
          "opacity",
          "tags",
          "roles",
          "tileSymbol",
          "frames",
          "defaultFrame",
          "speed",
          "playback"
        ],
        "properties": {
          "id": {
            "type": "string",
            "minLength": 1
          },
          "name": {
            "type": "string",
            "minLength": 1
          },
          "description": {
            "type": "string"
          },
          "width": {
            "type": "integer",
            "minimum": 1
          },
          "height": {
            "type": "integer",
            "minimum": 1
          },
          "pixelScale": {
            "type": "number",
            "minimum": 1
          },
          "opacity": {
            "type": "number",
            "minimum": 0
          },
          "tags": {
            "type": "array",
            "items": {
              "type": "string"
            }
          },
          "roles": {
            "type": "array",
            "items": {
              "type": "string",
              "enum": ["tile", "sprite"]
            }
          },
          "tileSymbol": {
            "type": "string"
          },
          "frames": {
            "type": "array",
            "minItems": 1,
            "items": {
              "type": "object",
              "additionalProperties": false,
              "required": ["id", "rows", "enabled", "index"],
              "properties": {
                "id": {
                  "type": "string",
                  "minLength": 1
                },
                "rows": {
                  "type": "array",
                  "items": {
                    "type": "string"
                  }
                },
                "enabled": {
                  "type": "boolean"
                },
                "index": {
                  "type": "integer",
                  "minimum": 0
                }
              }
            }
          },
          "defaultFrame": {
            "type": "string"
          },
          "speed": {
            "type": "number",
            "minimum": 0
          },
          "playback": {
            "type": "string"
          }
        }
      }
    }
  }
}