{
    "$schema": "https://json-schema.org/draft-07/schema#",
    "type": "object",
    "properties": {
        "name":        { "type": "string", "ID": 101},
        "description": { "type": "string", "ID": 102},
        "entities": {
            "type": "array",
            "ID": 103,
            "items": { "$ref": "#/definitions/Entity" }
        },
        "entities2D": {
            "type": "array",
            "ID": 104,
            "items": { "$ref": "#/definitions/Entity2D" }
        }
    },
    "required": ["name", "entities"],
    "definitions": {

        "Entity": {
            "type": "object",
            "properties": {
                "entityref":   { "type": "integer", "ID": 201 },
                "parent":      { "type": ["integer", "null"] , "ID": 202},
                "name":        { "type": "string", "ID": 203 },
                "description": { "type": "string", "ID": 204 },
                "children": {
                    "type": "array",
                    "ID": 205,
                    "items": { "type": "integer" }
                },
                "components": { "ID": 206, "$ref": "#/definitions/Components" }
            },
            "required": ["entityref", "name", "components"]
        },

        "Entity2D": {
            "type": "object",
            "properties": {
                "entityref":   { "type": "integer", "ID": 207 },
                "name":        { "type": "string", "ID": 208 },
                "description": { "type": "string", "ID": 209},
                "components": { "ID": 210, "$ref": "#/definitions/Components2D" }
            },
            "required": ["entityref", "name", "components"]
        },

        "Components": {
            "type": "object",
            "properties": {
                "transform":  { "ID": 2061, "$ref": "#/definitions/Transform" },
                "renderer":   { "ID": 2062, "$ref": "#/definitions/Renderer" },
                "camera":     { "ID": 2063, "$ref": "#/definitions/Camera" },
                "collider":   { "ID": 2064, "$ref": "#/definitions/Collider" },
                "rigidbody":  { "ID": 2065, "$ref": "#/definitions/RigidBody" },
                "speaker":    { "ID": 2066, "$ref": "#/definitions/Speaker" },
                "script":     { "ID": 2067, "$ref": "#/definitions/Script" },
                "light":      { "ID": 2068, "$ref": "#/definitions/Light" }
            }
        },

        "Components2D": {
            "type": "object",
            "properties": {
                "transform":  { "ID": 2069, "$ref": "#/definitions/Transform2D" },
                "renderer":   { "ID": 2070, "$ref": "#/definitions/Renderer2D" },
                "camera":     { "ID": 2071, "$ref": "#/definitions/Camera2D" },
                "collider":   { "ID": 2072, "$ref": "#/definitions/Collider2D" },
                "text":       { "ID": 2073, "$ref": "#/definitions/TextRenderer2D"},
                "script":     { "ID": 2074, "$ref": "#/definitions/Script" }
            }
        },

        "Vec2": {
            "type": "array",
            "items": { "type": "number" },
            "minItems": 2,
            "maxItems": 2
        },

        "Vec3": {
            "type": "array",
            "items": { "type": "number" },
            "minItems": 3,
            "maxItems": 3
        },

        "Vec4": {
            "type": "array",
            "items": { "type": "number" },
            "minItems": 4,
            "maxItems": 4
        },

        "Transform": {
            "type": "object",
            "properties": {
                "position": { "ID": 3011, "$ref": "#/definitions/Vec3" },
                "rotation": { "ID": 3012, "$ref": "#/definitions/Vec3" },
                "scale":    { "ID": 3013, "$ref": "#/definitions/Vec3" }
            },
            "required": ["position", "rotation", "scale"]
        },

        "Transform2D": {
            "type": "object",
            "properties": {
                "position": { "ID": 4011, "$ref": "#/definitions/Vec2" },
                "rotation": { "ID": 4012, "type": "number" },
                "scale":    { "ID": 4013, "$ref": "#/definitions/Vec2" },
                "size": { "ID": 4014, "$ref": "#/definitions/Vec2" },
                "pivot": { "ID": 4015, "$ref": "#/definitions/Vec2" },
                "zorder":    { "ID": 4016, "type": "integer", "minimum": 0 },
                "visible":    { "ID": 4017, "type": "boolean" }
            },
            "required": ["position", "size"]
        },

        "Renderer": {
            "type": ["object", "null"],
            "properties": {
                "model":  { "type": ["string", "null"], "ID": 3021 },
                "shader": { "type": "string", "ID": 3022 },
                "albedo": { "type": ["string", "null"], "ID": 3023 }
            },
            "required": ["model", "shader"]
        },

        "Renderer2D": {
            "type": ["object", "null"],
            "properties": {
                "model":  { "type": "string", "ID": 4021 },
                "shader": { "type": "string", "ID": 4022 }
            },
            "required": ["model", "shader"]
        },

        "TextRenderer2D": {
            "type": ["object", "null"],
            "properties": {
                "text":  { "type": "string", "ID": 4051 },
                "shader": { "type": "string", "ID": 4052 },
                "color": { "$ref": "#/definitions/Vec4", "ID": 4053},
                "font":  { "type": "string", "ID": 4054}
            },
            "required": ["text", "shader", "color", "font"]
        },

        "Camera": {
            "type": ["object", "null"],
            "properties": {
                "fov":  { "type": "number", "minimum": 1,   "maximum": 179, "ID": 3031 },
                "near": { "type": "number", "minimum": 0.001, "ID": 3032 },
                "far":  { "type": "number", "minimum": 0.1, "ID": 3033 }
            },
            "required": ["fov", "near", "far"]
        },

        "Camera2D": {
            "type": ["object", "null"],
            "properties": {
                "zoom":  { "type": "number", "minimum": 1.0, "ID": 4031 }
            },
            "required": ["zoom"]
        },

        "Collider": {
            "type": ["object", "null"],
            "properties": {
                "type": {
                    "type": "integer",
                    "ID": 3041,
                    "enum": [0,1,2,3,4,5]
                },
                "size":       { "$ref": "#/definitions/Vec3", "ID": 3042 },
                "radius":     { "type": "number", "minimum": 0, "ID": 3043 },
                "halfHeight": { "type": "number", "minimum": 0, "ID": 3044 }
            },
            "required": ["type"],
            "allOf": [
                {
                    "if":   { "properties": { "type": { "const": 0 } } },
                    "then": { "required": ["size"] }
                },
                {
                    "if":   { "properties": { "type": { "const": 1 } } },
                    "then": { "required": ["radius"] }
                },
                {
                    "if":   { "properties": { "type": { "const": 2 } } },
                    "then": { "required": ["radius", "halfHeight"] }
                }
            ]
        },

        "Collider2D": {
            "type": ["object", "null"],
            "properties": {
                "type": {
                    "type": "integer",
                    "ID": 4041,
                    "enum": [0,1,2,3]
                }
            },
            "required": ["type"]
        },

        "RigidBody": {
            "type": ["object", "null"],
            "properties": {
                "type": {
                    "type": "integer",
                    "ID": 3051,
                    "enum": [0,1,2]
                },
                "mass":        { "type": "number", "minimum": 0, "ID": 3052 },
                "friction":    { "type": "number", "minimum": 0, "maximum": 1, "ID": 3053 },
                "restitution": { "type": "number", "minimum": 0, "maximum": 1, "ID": 3054 }
            },
            "required": ["type"]
        },

        "Speaker": {
            "type": ["object", "null"],
            "properties": {
                "clips": { 
                    "type": "array", 
                    "ID": 3061,
                    "items": {
                        "type": "object",
                        "properties": {
                            "path":        { "type": "string", "ID": 30611 },
                            "gain":        { "type": "number", "minimum": 0, "ID": 30612 },
                            "pitch":       { "type": "number", "minimum": 0, "ID": 30613 },
                            "loop":        { "type": "boolean", "ID": 30614 },
                            "spatial":     { "type": "boolean", "ID": 30615 }
                        },
                        "required": ["path"]
                    }}
            },
            "required": ["clips"]
        },

        "Light": {
            "type": ["object", "null"],
            "properties": {
                "type": {
                    "type": "integer",
                    "ID": 3071,
                    "enum": [0,1,2]
                },
                "color":        { "$ref": "#/definitions/Vec3", "ID": 3072 },
                "intensity":    { "type": "number", "minimum": 0, "ID": 3073 },
                "range":        { "type": "number", "minimum": 0, "ID": 3074 },
                "attenuation":  { "type": "number", "minimum": 0, "ID": 3075 },
                "innerangle":   { "type": "number", "minimum": 0, "ID": 3076 },
                "outerangle":   { "type": "number", "minimum": 0, "ID": 3077 },
                "castshadow":   { "type": "boolean", "ID": 3078 }
            },
            "required": ["type", "color", "intensity", "range", "attenuation", "innerangle", "outerangle", "castshadow"]
        }, 

        "Script": {
            "type": "array", 
            "items": {"type" : "string", "ID": 3079}
        }
    }
}