wow_wmo/
version_detection.rs

1use crate::chunk_discovery::ChunkDiscovery;
2
3/// WMO version based on expansion and chunk patterns
4#[derive(Debug, Clone, Copy, PartialEq, Eq)]
5pub enum WmoVersion {
6    /// Classic/Vanilla (1.12.1) and TBC (2.4.3)
7    Classic,
8    /// Wrath of the Lich King (3.3.5)
9    WotLK,
10    /// Cataclysm (4.3.4) - introduced MCVP chunk
11    Cataclysm,
12    /// Mists of Pandaria (5.4.8)
13    MoP,
14    /// Warlords of Draenor (6.2.4) - introduced GFID chunk
15    Warlords,
16    /// Legion and later
17    Legion,
18}
19
20/// Detect WMO version based on chunk patterns
21///
22/// Note: All versions use format version 17, so we detect by chunk presence:
23/// - MCVP → Cataclysm or later
24/// - GFID → Warlords or later
25/// - Otherwise → Classic/TBC/WotLK
26pub fn detect_version(discovery: &ChunkDiscovery) -> WmoVersion {
27    // Collect chunk IDs for pattern matching
28    let chunk_ids: Vec<&str> = discovery.chunks.iter().map(|c| c.id.as_str()).collect();
29
30    // Check for version-specific chunks
31    if chunk_ids.contains(&"GFID") {
32        // GFID was introduced in Warlords of Draenor
33        WmoVersion::Warlords
34    } else if chunk_ids.contains(&"MCVP") {
35        // MCVP was introduced in Cataclysm for vertex painting
36        WmoVersion::Cataclysm
37    } else {
38        // No version-specific chunks - likely Classic, TBC, or WotLK
39        // These can't be distinguished by chunks alone
40        WmoVersion::Classic
41    }
42}
43
44impl WmoVersion {
45    /// Check if this version supports a specific feature
46    pub fn supports_feature(&self, feature: WmoFeature) -> bool {
47        match feature {
48            WmoFeature::VertexPainting => {
49                matches!(
50                    self,
51                    WmoVersion::Cataclysm
52                        | WmoVersion::MoP
53                        | WmoVersion::Warlords
54                        | WmoVersion::Legion
55                )
56            }
57            WmoFeature::FileDataId => {
58                matches!(self, WmoVersion::Warlords | WmoVersion::Legion)
59            }
60        }
61    }
62
63    /// Get the earliest expansion that supports this version
64    pub fn expansion_name(&self) -> &'static str {
65        match self {
66            WmoVersion::Classic => "Classic/TBC",
67            WmoVersion::WotLK => "Wrath of the Lich King",
68            WmoVersion::Cataclysm => "Cataclysm",
69            WmoVersion::MoP => "Mists of Pandaria",
70            WmoVersion::Warlords => "Warlords of Draenor",
71            WmoVersion::Legion => "Legion+",
72        }
73    }
74}
75
76/// WMO feature flags for version compatibility
77#[derive(Debug, Clone, Copy, PartialEq, Eq)]
78pub enum WmoFeature {
79    /// Vertex painting support (Cataclysm+)
80    VertexPainting,
81    /// File data ID support (Warlords+)
82    FileDataId,
83}
wow_wmo/version_detection.rs

wow_wmo/
version_detection.rs
