Add Ok Zoomer compatibility

common/src/main/kotlin/fr/username404/snowygui/gui/feature/Zoom.kt

@@ -5,8 +5,8 @@ import net.minecraft.client.Minecraft
 
 @ButtonInfo(Category.MISC, shouldSave = false)
 object Zoom: ButtonImpl() {
-    internal var smoothCameraOnZoom: Boolean by Configuration
-    internal var zoomFactor: Double by Configuration
+    var smoothCameraOnZoom: Boolean by Configuration
+    var zoomFactor: Double by Configuration
     @JvmStatic
     fun getNewZoom(fov: Double): Double = fov / zoomFactor
     public override fun execAction() {

fabric/src/main/java/fr/username404/snowygui/mixins/OkZoomerAlternativeMixin.java

@@ -0,0 +1,22 @@
+package fr.username404.snowygui.mixins;
+
+import fr.username404.snowygui.fabric.FabricInitKt;
+import fr.username404.snowygui.gui.feature.Zoom;
+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;
+
+@Mixin(Zoom.class)
+abstract class OkZoomerAlternativeMixin {
+	/**
+	 * @author Username404
+	 * @reason Needed to use the Ok Zoomer mod when it is present
+	 */
+	@Inject(remap = false, at = @At("HEAD"), method = "execAction", cancellable = true)
+	public void execAction(CallbackInfo ci) {
+		if (FabricInitKt.isOkZoomerPresent) {
+			FabricInitKt.fabricZoom();
+		}
+	}
+}

fabric/src/main/java/fr/username404/snowygui/mixins/ZoomMixin.java

@@ -1,5 +1,6 @@
 package fr.username404.snowygui.mixins;
 
+import fr.username404.snowygui.fabric.FabricInitKt;
 import fr.username404.snowygui.gui.feature.Zoom;
 import net.minecraft.client.Camera;
 import net.minecraft.client.renderer.GameRenderer;
@@ -12,7 +13,7 @@ import org.spongepowered.asm.mixin.injection.callback.CallbackInfoReturnable;
 abstract class ZoomMixin {
 	@Inject(at = @At(value = "RETURN"), method = "getFov(Lnet/minecraft/client/Camera;FZ)D", cancellable = true)
 	private void getFov(Camera camera, float f, boolean bl, CallbackInfoReturnable<Double> cir) {
-		if (Zoom.INSTANCE.getToggled()) {
+		if (Zoom.INSTANCE.getToggled() && !FabricInitKt.isOkZoomerPresent) {
 			cir.setReturnValue(Zoom.getNewZoom(cir.getReturnValue()));
 		}
 	}

fabric/src/main/kotlin/fr/username404/snowygui/fabric/FabricInit.kt

@@ -4,6 +4,7 @@ import com.mojang.blaze3d.vertex.PoseStack
 import fr.username404.snowygui.EventSnowy
 import fr.username404.snowygui.Snowy
 import fr.username404.snowygui.gui.feature.ButtonImpl
+import fr.username404.snowygui.gui.feature.Zoom
 import net.fabricmc.api.ClientModInitializer
 import net.fabricmc.fabric.api.client.rendering.v1.HudRenderCallback
 import net.fabricmc.fabric.api.client.rendering.v1.HudRenderCallback.EVENT
@@ -39,4 +40,31 @@ class FabricInit: Snowy(), ClientModInitializer {
             classSet
         }.toSet()
     }
+}
+
+@JvmField
+var isOkZoomerPresent: Boolean = FabricLoader.getInstance().isModLoaded("okzoomer")
+private val okZoomerPairs by lazy {
+    try {
+        with(Class.forName("io.github.joaoh1.okzoomer.client.utils.ZoomUtils")) {
+            (getField("zoomDivisor") to null) to (getField("zoomState") to null)
+        }
+    } catch (e: ClassNotFoundException) {
+        with(Class.forName("io.github.ennuil.okzoomer.utils.ZoomUtils").getDeclaredField("zoomerZoom")) {
+            get(null).javaClass.run {
+                (getField("zoomDivisor") to this@with) to (getField("zoom") to this@with)
+            }
+        }
+    }
+}
+
+fun fabricZoom() {
+    try {
+        with(okZoomerPairs) {
+            first.run { first.setDouble(second, Zoom.zoomFactor) }
+            second.run { first.setBoolean(second, Zoom.toggled) }
+        }
+    } catch (e: Exception) {
+        isOkZoomerPresent = false
+    }
 }

fabric/src/main/resources/snowygui-mixins-fabric.json

@@ -3,7 +3,8 @@
   "package": "fr.username404.snowygui.mixins",
   "compatibilityLevel": "JAVA_8",
   "client": [
-    "ZoomMixin"
+    "ZoomMixin",
+    "OkZoomerAlternativeMixin"
   ],
   "injectors": {
     "defaultRequire": 1