{
  "$schema": "http://json-schema.org/draft-07/schema",
  "type": "array",
  "items": {
      "type": "object",
      "properties": {
          "columnNumber": {
              "type": "integer",
              "minimum": 0,
              "description": "The number of this column in the techs matrix - 0 being the leftmost column"
          },
          "era": { "type": "string" },
          "techCost": { "type": "integer" },
          "buildingCost": { "type": "integer" },
          "wonderCost": { "type": "integer" },
          "techs": {
              "type": "array",
              "items": {
                  "type": "object",
                  "properties": {
                      "name":  { "type": "string" },
                      "row":  {
                          "type": "integer",
                          "minimum": 1,
                          "description": "The row, within the column, where this tech appears - 1 being the topmost tech"
                      },
                      "cost":  {
                          "type": "integer",
                          "description": "Science cost of this tech - overrides the column techCost"
                      },
                      "uniques":  { "$ref": "https://raw.githubusercontent.com/yairm210/Unciv/master/docs/Modders/schemas/uniques.json" },
                      "prerequisites": {
                          "type": "array",
                          "items": { "type": "string" },
                          "description": "The names of techs which must be researched before this tech can be researched",
                          "uniqueItems": true
                      },
                      "civilopediaText": { "$ref": "https://raw.githubusercontent.com/yairm210/Unciv/master/docs/Modders/schemas/civilopediaText.json" },
                      "quote":  {
                          "type": "string",
                          "description": "The quote that is displayed when you have researched the tech - flavor text"
                      }
                  },
                  "required": ["name", "row"],
                  "additionalProperties": false
              }
          },

          "uniques": { "$ref": "https://raw.githubusercontent.com/yairm210/Unciv/master/docs/Modders/schemas/uniques.json" },

          "civilopediaText": { "$ref": "https://raw.githubusercontent.com/yairm210/Unciv/master/docs/Modders/schemas/civilopediaText.json" }
      },
      "required": [
          "columnNumber", "era"
      ],
      "additionalProperties": false
  }
}