Fix #3 for 1.19.2

src/main/java/com/darkere/moredragoneggs/MoreDragonEggs.java

@@ -1,12 +1,16 @@
 package com.darkere.moredragoneggs;
 
+import com.darkere.moredragoneggs.mixin.EndDragonFightAccess;
 import net.minecraft.core.BlockPos;
 import net.minecraft.core.Direction;
 import net.minecraft.server.TickTask;
 import net.minecraft.server.level.ServerLevel;
 import net.minecraft.world.entity.Entity;
 import net.minecraft.world.level.block.Blocks;
 import net.minecraft.world.level.block.WallSkullBlock;
+import net.minecraft.world.level.dimension.end.EndDragonFight;
+import net.minecraft.world.level.levelgen.Heightmap;
+import net.minecraft.world.level.levelgen.feature.EndPodiumFeature;
 import net.minecraftforge.fml.ModLoadingContext;
 import net.minecraftforge.fml.common.Mod;
 import net.minecraftforge.fml.config.ModConfig;
@@ -59,4 +63,15 @@ public static void PlaceDragonHead(BlockPos pos, ServerLevel level) {
     }
 
 
+    public static void placeAdditionalEggAndMaybeHead(EndDragonFight dragonFight) {
+        ServerLevel level = ((EndDragonFightAccess)dragonFight).moredragoneggs_getLevel();
+        BlockPos pos = level.getHeightmapPos(Heightmap.Types.MOTION_BLOCKING, EndPodiumFeature.END_PODIUM_LOCATION);
+        while (level.getBlockState(pos).getBlock() != Blocks.AIR){
+            pos = pos.above();
+        }
+        if (dragonFight.hasPreviouslyKilledDragon()) {
+            level.setBlockAndUpdate(pos, Blocks.DRAGON_EGG.defaultBlockState());
+        }
+        PlaceDragonHead( pos, level);
+    }
 }

src/main/java/com/darkere/moredragoneggs/mixin/DragonEggMixin.java

@@ -1,39 +1,19 @@
 package com.darkere.moredragoneggs.mixin;
 
 import com.darkere.moredragoneggs.MoreDragonEggs;
-import net.minecraft.core.BlockPos;
-import net.minecraft.server.level.ServerLevel;
 import net.minecraft.world.entity.boss.enderdragon.EnderDragon;
-import net.minecraft.world.level.block.Blocks;
 import net.minecraft.world.level.dimension.end.EndDragonFight;
-import net.minecraft.world.level.levelgen.Heightmap;
-import net.minecraft.world.level.levelgen.feature.EndPodiumFeature;
-import org.spongepowered.asm.mixin.Final;
 import org.spongepowered.asm.mixin.Mixin;
-import org.spongepowered.asm.mixin.Shadow;
 import org.spongepowered.asm.mixin.injection.At;
 import org.spongepowered.asm.mixin.injection.Inject;
 import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
 
 @Mixin(EndDragonFight.class)
 public class DragonEggMixin {
 
-    @Shadow
-    private
-    boolean previouslyKilled;
-    @Shadow
-    @Final
-    private
-    ServerLevel level;
-
-
     @Inject(at = @At("HEAD"),method = "setDragonKilled(Lnet/minecraft/world/entity/boss/enderdragon/EnderDragon;)V")
     private void setDragonKilled(EnderDragon p_64086_, CallbackInfo cb) {
-        BlockPos pos = this.level.getHeightmapPos(Heightmap.Types.MOTION_BLOCKING, EndPodiumFeature.END_PODIUM_LOCATION);
-        if (this.previouslyKilled) {
-            this.level.setBlockAndUpdate(pos, Blocks.DRAGON_EGG.defaultBlockState());
-        }
-        MoreDragonEggs.PlaceDragonHead( pos, this.level);
+        MoreDragonEggs.placeAdditionalEggAndMaybeHead((EndDragonFight)(Object)this);
     }
 
 }

src/main/java/com/darkere/moredragoneggs/mixin/EndDragonFightAccess.java

@@ -0,0 +1,13 @@
+package com.darkere.moredragoneggs.mixin;
+
+import net.minecraft.server.level.ServerLevel;
+import net.minecraft.world.level.dimension.end.EndDragonFight;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.gen.Accessor;
+
+@Mixin(EndDragonFight.class)
+public interface EndDragonFightAccess {
+
+    @Accessor("level")
+    ServerLevel moredragoneggs_getLevel();
+}

src/main/java/com/darkere/moredragoneggs/mixin/EndergeticDragonEggMixin.java

@@ -0,0 +1,26 @@
+package com.darkere.moredragoneggs.mixin;
+
+import com.darkere.moredragoneggs.MoreDragonEggs;
+import net.minecraft.nbt.CompoundTag;
+import net.minecraft.server.level.ServerLevel;
+import net.minecraft.world.entity.boss.enderdragon.EnderDragon;
+import net.minecraft.world.level.dimension.end.EndDragonFight;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.Pseudo;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
+
+@Pseudo
+@Mixin(targets = "com.teamabnormals.endergetic.common.world.EndergeticDragonFightManager")
+public class EndergeticDragonEggMixin extends EndDragonFight {
+
+    public EndergeticDragonEggMixin(ServerLevel level, long seed, CompoundTag fightData) {
+        super(level, seed, fightData);
+    }
+
+    @Inject(at = @At("HEAD"),method = "setDragonKilled(Lnet/minecraft/world/entity/boss/enderdragon/EnderDragon;)V")
+    private void setDragonKilled(EnderDragon p_64086_, CallbackInfo cb) {
+        MoreDragonEggs.placeAdditionalEggAndMaybeHead(this);
+    }
+}

src/main/resources/mixins.moredragoneggs.json

@@ -3,6 +3,10 @@
   "package": "com.darkere.moredragoneggs.mixin",
   "compatibilityLevel": "JAVA_17",
   "refmap": "mixins.moredragoneggs.refmap.json",
-  "mixins": ["DragonEggMixin"],
+  "mixins": [
+    "DragonEggMixin",
+    "EndDragonFightAccess",
+    "EndergeticDragonEggMixin"
+  ],
   "minVersion": "0.8"
 }