1 files changed, 67 insertions, 0 deletions
diff --git a/src/main/java/ganarchy/chewstuff/mixin/PotionMix.java b/src/main/java/ganarchy/chewstuff/mixin/PotionMix.java
new file mode 100644
index 0000000..5ed97ab
--- /dev/null
+++ b/src/main/java/ganarchy/chewstuff/mixin/PotionMix.java
@@ -0,0 +1,67 @@
+package ganarchy.chewstuff.mixin;
+
+import ganarchy.chewstuff.ChewComponents;
+import net.minecraft.entity.LivingEntity;
+import net.minecraft.entity.effect.StatusEffectInstance;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfoReturnable;
+
+/**
+ * The mixin for status effect instances.
+ */
+@Mixin(StatusEffectInstance.class)
+public class PotionMix {
+    /**
+     * Checks the apply effect and cancels it when we're force-ticking it.
+     */
+    @Inject(
+        at = @At("HEAD"),
+        method = "applyUpdateEffect(Lnet/minecraft/entity/LivingEntity;)V",
+        cancellable = true
+    )
+    private void chewstuff_checkApplyEffect(
+        LivingEntity entity, CallbackInfo cbinfo
+    ) {
+        StatusEffectInstance self = (StatusEffectInstance) (Object) this;
+        var maybeInfo = ChewComponents.CHEW.maybeGet(entity);
+        maybeInfo.ifPresent(info -> {
+            var effect = self.getEffectType();
+            if (info.effects.getOrDefault(effect, 0) <= 0) {
+                return;
+            }
+            if (info.applied.contains(effect)) {
+                info.applied.remove(effect);
+                cbinfo.cancel();
+            } else {
+                info.applied.add(effect);
+            }
+        });
+    }
+
+    /**
+     * Checks for effect ticks.
+     */
+    @Inject(
+        at = @At("HEAD"),
+        method =
+            "update(Lnet/minecraft/entity/LivingEntity;Ljava/lang/Runnable;)Z"
+    )
+    private void chewstuff_checkUpdate(
+        LivingEntity entity,
+        Runnable runnable,
+        CallbackInfoReturnable<Boolean> cbinfo
+    ) {
+        StatusEffectInstance self = (StatusEffectInstance) (Object) this;
+        var maybeInfo = ChewComponents.CHEW.maybeGet(entity);
+        maybeInfo.ifPresent(info -> {
+            var effect = self.getEffectType();
+            if (info.effects.getOrDefault(effect, 0) <= 0) {
+                return;
+            }
+            info.effects.computeIfPresent(effect, (k, v) -> v - 1);
+        });
+    }
+}