Adds effects for changing target stats.

gen_7_scripts/src/moves/change_all_target_stats.rs

@@ -0,0 +1,58 @@
+use crate::script;
+use core::any::Any;
+use core::sync::atomic::{AtomicI8, Ordering};
+use pkmn_lib_interface::app_interface::list::ImmutableList;
+use pkmn_lib_interface::app_interface::{
+    DynamicLibrary, EffectParameter, ExecutingMove, Pokemon, Statistic,
+};
+use pkmn_lib_interface::handling::{Script, ScriptCapabilities};
+
+script!(
+    ChangeAllTargetStats,
+    "change_all_target_stats",
+    amount: AtomicI8
+);
+
+impl Script for ChangeAllTargetStats {
+    fn new() -> Self {
+        Self {
+            amount: Default::default(),
+        }
+    }
+
+    fn get_name(&self) -> &'static str {
+        Self::get_const_name()
+    }
+
+    fn get_capabilities(&self) -> &[ScriptCapabilities] {
+        &[
+            ScriptCapabilities::Initialize,
+            ScriptCapabilities::OnSecondaryEffect,
+        ]
+    }
+
+    fn on_initialize(
+        &self,
+        library: &DynamicLibrary,
+        parameters: Option<ImmutableList<EffectParameter>>,
+    ) {
+        self.amount.store(
+            parameters.unwrap().get(0).unwrap().as_int() as i8,
+            Ordering::SeqCst,
+        );
+    }
+
+    fn on_secondary_effect(&self, mv: ExecutingMove, target: Pokemon, _hit: u8) {
+        let user = mv.user();
+        let amount = self.amount.load(Ordering::SeqCst);
+        target.change_stat_boost(Statistic::Attack, amount, user == target);
+        target.change_stat_boost(Statistic::Defense, amount, user == target);
+        target.change_stat_boost(Statistic::SpecialAttack, amount, user == target);
+        target.change_stat_boost(Statistic::SpecialDefense, amount, user == target);
+        target.change_stat_boost(Statistic::Speed, amount, user == target);
+    }
+
+    fn as_any(&self) -> &dyn Any {
+        self
+    }
+}