1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142

/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

use crate::{
    parsers::{parse_color, parse_property},
    Color, TiledValue, Vec2,
};
use serde::{Deserialize, Deserializer};
use std::collections::HashMap;

#[derive(Deserialize, Debug, PartialEq, Clone)]
pub struct Object {
    // GID, only if object comes from a Tilemap
    pub gid: Option<u32>,
    /// Incremental id - unique across all objects
    pub id: Option<u32>,
    pub name: String,
    #[serde(rename(deserialize = "type"), default)]
    pub custom_type: String,
    /// Angle in degrees clockwise
    pub rotation: f32,
    pub height: f32,
    pub width: f32,
    /// X coordinate in pixels
    #[serde(default)]
    pub x: f32,
    /// Y coordinate in pixels
    #[serde(default)]
    pub y: f32,
    #[serde(deserialize_with = "parse_property", default)]
    pub properties: HashMap<String, TiledValue>,
    /// An *almost* concrete type. Some types aren't included in this, eg; a square
    /// which can be derived from the X/Y & Height/Width
    ///
    /// Types can be:
    /// - Point
    /// - Polygon
    /// - Polyline
    /// - Text
    /// - Ellipse
    /// - or None
    #[serde(flatten)]
    pub object_type: ObjectType,
}

#[derive(Deserialize, Debug, PartialEq, Clone)]
pub struct Text {
    /// 0000: off, 0001: bold, 0010:italic, 0100: wrap (1, 2, 4, 8)
    pub flags: u8,
    #[serde(deserialize_with = "parse_color", default)]
    pub color: Color,
    pub text: String,
}

/// Contains data for the object sub-types
#[derive(Debug, PartialEq, Clone)]
pub enum ObjectType {
    Ellipse,
    Point,
    Polygon(Vec<Vec2<i32>>),
    PolyLine(Vec<Vec2<i32>>),
    Text(Text),
    Template(String),
    None,
}

impl ObjectType {
    pub fn is_none(&self) -> bool {
        *self == ObjectType::None
    }

    pub fn is_some(&self) -> bool {
        *self != ObjectType::None
    }
}

impl<'de> Deserialize<'de> for ObjectType {
    fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
    where
        D: Deserializer<'de>,
    {
        #[derive(Deserialize)]
        #[serde(rename_all = "lowercase")]
        enum Helper {
            Ellipse(bool),
            Point(bool),
            Polygon(Vec<Vec2<i32>>),
            Polyline(Vec<Vec2<i32>>),
            Text {
                bold: bool,
                #[serde(deserialize_with = "parse_color", default)]
                color: Color,
                italic: bool,
                text: String,
                wrap: bool,
            },
        }

        let v = serde_json::Value::deserialize(deserializer)?;
        if let Ok(m) = Helper::deserialize(&v) {
            return match m {
                Helper::Ellipse(b) => {
                    if b {
                        Ok(ObjectType::Ellipse)
                    } else {
                        Ok(ObjectType::None)
                    }
                }
                Helper::Point(b) => {
                    if b {
                        Ok(ObjectType::Point)
                    } else {
                        Ok(ObjectType::None)
                    }
                }
                Helper::Polygon(data) => Ok(ObjectType::Polygon(data)),
                Helper::Polyline(data) => Ok(ObjectType::PolyLine(data)),
                Helper::Text {
                    bold,
                    color,
                    italic,
                    text,
                    wrap,
                } => {
                    let mut flags = 0u8;
                    if bold {
                        flags |= 1
                    }
                    if italic {
                        flags |= 2
                    }
                    if wrap {
                        flags |= 4
                    }
                    Ok(ObjectType::Text(Text { flags, color, text }))
                }
            };
        }
        Ok(ObjectType::None)
    }
}