{
	"type":"object",
	"additionalProperties" : false,
	"$schema": "http://json-schema.org/draft-04/schema",
	"title" : "VCMI siege screen format",
	"description" : "Format used to define town siege screen in VCMI",
	"required" : [
		"gate", "imagePrefix", "moat", "shooterHeight", "shooter",
		"static", "towers", "walls"
	 ],
	
	"definitions" :
	{
		"point" : {
			"type" : "object",
			"additionalProperties" : false,
			"required" : [ "x", "y" ],
			"properties":{
				"x": { "type":"number" },
				"y": { "type":"number" }
			}
		},
		"tower" : {
			"type" : "object",
			"additionalProperties" : false,
			"required" : [ "battlement", "creature", "tower" ],
			"properties":{
				"battlement": {
					"description" : "Location of battlement, part of tower that covers shooter",
					"$ref" : "#/definitions/point"
				},
				"creature": {
					"description" : "Location of shooter in tower",
					"$ref" : "#/definitions/point"
				},
				"tower": {
					"description" : "Location of main segment of tower",
					"$ref" : "#/definitions/point"
				}
			}
		}
	},

	"properties":{
		"gate": {
			"type":"object",
			"additionalProperties" : false,
			"description" : "Town gates",
			"properties":{
				"arch": {
					"description" : "Static, top part of gates",
					"$ref" : "#/definitions/point"
				},
				"gate": {
					"description" : "Main section of gates",
					"$ref" : "#/definitions/point"
				}
			}
		},
		"imagePrefix": {
			"type":"string",
			"description" : "Prefix to all images related to siege screen"
		},
		"moat": {
			"type":"object",
			"additionalProperties" : false,
			"description" : "Castle moat description",
			"properties":{
				"bank": {
					"description" : "Small section with bank of the moat",
					"$ref" : "#/definitions/point"
				},
				"moat": {
					"description" : "Main section of the moat",
					"$ref" : "#/definitions/point"
				}
			}
		},
		"shooterHeight": {
			"type":"number",
			"description" : "Height at which shooter image will be cropped"
		},
		"shooter": {
			"type":"string",
			"description" : "Identifier of creature that will be used as tower shooter"
		},
		"static": {
			"type":"object",
			"additionalProperties" : false,
			"description" : "Static sections of walls",
			"properties":{
				"background": {
					"description" : "Very top section of the wall located above hero",
					"$ref" : "#/definitions/point"
				},
				"bottom": {
					"description" : "Bottom section located between destructible sections",
					"$ref" : "#/definitions/point"
				},
				"top": {
					"description" : "Top section located between destructible sections",
					"$ref" : "#/definitions/point"
				}
			}
		},
		"towers": {
			"type":"object",
			"additionalProperties" : false,
			"description" : "Decription of towers",
			"properties":{
				"bottom": { "$ref" : "#/definitions/tower", "description" : "Bottom tower" },
				"keep":   { "$ref" : "#/definitions/tower", "description" : "Central keep" },
				"top":    { "$ref" : "#/definitions/tower", "description" : "Top tower" }
			}
		},
		"walls": {
			"type":"object",
			"additionalProperties" : false,
			"description" : "Destructible sections of the walls",
			"properties":{
				"bottomMid": {
					"description" : "Second from bottom section located near gates",
					"$ref" : "#/definitions/point"
				},
				"bottom": {
					"description" : "Bottommost section located near bottom tower",
					"$ref" : "#/definitions/point"
				},
				"upperMid": {
					"description" : "Second from top section located near gates",
					"$ref" : "#/definitions/point"
				},
				"upper": {
					"description" : "Topmost section located near top tower",
					"$ref" : "#/definitions/point"
				}
			}
		}
	}
}