start implementing analyzers

It turns out that the different encounters do require quite some
encounter-specific logic, not only to determine whether the CM was
activated, but also to determine whether the fight was successful, the
duration of the fight, later the phases, ...

Wrapping all of this in pre-defined "triggers" (like CmTrigger) feels
like it will be a bit unfitting, so with this patch we have introduced
the evtclib::Analyzer, which can be used to analyze the fights.
Currently, the whole CM detection logic has been moved to this new
interface, and soon we also want the success-detection logic in there.

The tests pass and the interface of Log::is_cm is unchanged.

1 files changed, 87 insertions, 0 deletions

diff --git a/src/analyzers/raids/w6.rs b/src/analyzers/raids/w6.rs
new file mode 100644
index 0000000..c4e5b1a
--- /dev/null
+++ b/src/analyzers/raids/w6.rs
@@ -0,0 +1,87 @@
+//! Boss fight analyzers for Wing 6 (Mythwright Gambit)
+use crate::{
+    analyzers::{helpers, Analyzer},
+    Log,
+};
+
+pub const CA_CM_BUFF: u32 = 53_075;
+
+/// Analyzer for the first fight of Wing 6, Conjured Amalgamate.
+///
+/// The CM is detected by the presence of the buff that the player targeted by the laser has.
+#[derive(Debug, Clone, Copy)]
+pub struct ConjuredAmalgamate<'log> {
+    log: &'log Log,
+}
+
+impl<'log> ConjuredAmalgamate<'log> {
+    pub fn new(log: &'log Log) -> Self {
+        ConjuredAmalgamate { log }
+    }
+}
+
+impl<'log> Analyzer for ConjuredAmalgamate<'log> {
+    fn log(&self) -> &Log {
+        self.log
+    }
+
+    fn is_cm(&self) -> bool {
+        helpers::buff_present(self.log, CA_CM_BUFF)
+    }
+}
+
+pub const LARGOS_CM_HEALTH: u64 = 19_200_000;
+
+/// Analyzer for the second fight of Wing 6, Largos Twins.
+///
+/// The CM is detected by the boss's health, which is higher in the challenge mote.
+#[derive(Debug, Clone, Copy)]
+pub struct LargosTwins<'log> {
+    log: &'log Log,
+}
+
+impl<'log> LargosTwins<'log> {
+    pub fn new(log: &'log Log) -> Self {
+        LargosTwins { log }
+    }
+}
+
+impl<'log> Analyzer for LargosTwins<'log> {
+    fn log(&self) -> &Log {
+        self.log
+    }
+
+    fn is_cm(&self) -> bool {
+        helpers::boss_health(self.log)
+            .map(|h| h >= LARGOS_CM_HEALTH)
+            .unwrap_or(false)
+    }
+}
+
+pub const QADIM_CM_HEALTH: u64 = 21_100_000;
+
+/// Analyzer for the third fight of Wing 6, Qadim.
+///
+/// The CM is detected by the boss's health, which is higher in the challenge mote.
+#[derive(Debug, Clone, Copy)]
+pub struct Qadim<'log> {
+    log: &'log Log,
+}
+
+impl<'log> Qadim<'log> {
+    pub fn new(log: &'log Log) -> Self {
+        Qadim { log }
+    }
+}
+
+impl<'log> Analyzer for Qadim<'log> {
+    fn log(&self) -> &Log {
+        self.log
+    }
+
+    fn is_cm(&self) -> bool {
+        helpers::boss_health(self.log)
+            .map(|h| h >= QADIM_CM_HEALTH)
+            .unwrap_or(false)
+    }
+}