Fix incompatibility with DragonAPI

src/main/java/micdoodle8/mods/galacticraft/core/mixins/Mixins.java

@@ -12,7 +12,12 @@ public enum Mixins implements IMixins {
             .addClientMixins("forge.ForgeHooksClientMixin")),
     CHECK_OTHER_MOD_PREVENTS_GENERATION(
             new MixinBuilder("Only generate the world if no mod prevents it")
-                    .addCommonMixins("minecraft.ChunkProviderServerMixin")),
+                    .addCommonMixins("minecraft.ChunkProviderServerMixin")
+                    .addExcludedMod(TargetedMod.DRAGONAPI)),
+    CHECK_OTHER_MOD_PREVENTS_GENERATION_DRAGONAPI(
+            new MixinBuilder("Only generate the world if no mod prevents it")
+                    .addCommonMixins("minecraft.ChunkProviderServerMixin_DragonApi")
+                    .addRequiredMod(TargetedMod.DRAGONAPI)),
     RENDER_FOOTPRINTS(new MixinBuilder()
             .addClientMixins("minecraft.EffectRendererMixin")),
     MODIFY_ENTITY_GRAVITY(new MixinBuilder()

src/main/java/micdoodle8/mods/galacticraft/core/mixins/TargetedMod.java

@@ -7,8 +7,9 @@
 
 public enum TargetedMod implements ITargetMod {
 
-    PLAYERAPI("api.player.forge.PlayerAPIPlugin", "PlayerAPI"),
-    OPTIFINE("optifine.OptiFineForgeTweaker", "Optifine");
+    DRAGONAPI("Reika.DragonAPI.Auxiliary.DragonAPIASMHandler", "DragonAPI"),
+    OPTIFINE("optifine.OptiFineForgeTweaker", "Optifine"),
+    PLAYERAPI("api.player.forge.PlayerAPIPlugin", "PlayerAPI");
 
     private final TargetModBuilder builder;
 

src/main/java/micdoodle8/mods/galacticraft/core/mixins/early/minecraft/ChunkProviderServerMixin_DragonApi.java

@@ -0,0 +1,31 @@
+package micdoodle8.mods.galacticraft.core.mixins.early.minecraft;
+
+import net.minecraft.world.World;
+import net.minecraft.world.chunk.IChunkProvider;
+import net.minecraft.world.gen.ChunkProviderServer;
+
+import org.spongepowered.asm.mixin.Dynamic;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.injection.At;
+
+import com.llamalad7.mixinextras.injector.v2.WrapWithCondition;
+
+import micdoodle8.mods.galacticraft.core.util.WorldUtil;
+
+@Mixin(ChunkProviderServer.class)
+public class ChunkProviderServerMixin_DragonApi {
+
+    @Dynamic
+    @SuppressWarnings("MixinAnnotationTarget")
+    @WrapWithCondition(
+            at = @At(
+                    remap = false,
+                    target = "LReika/DragonAPI/Auxiliary/WorldGenInterceptionRegistry;interceptChunkPopulation(IILnet/minecraft/world/World;Lnet/minecraft/world/chunk/IChunkProvider;Lnet/minecraft/world/chunk/IChunkProvider;)V",
+                    value = "INVOKE"),
+            method = "populate(Lnet/minecraft/world/chunk/IChunkProvider;II)V",
+            require = 1)
+    private boolean galacticraft$checkOtherModPreventGenerate(int chunkX, int chunkZ, World world,
+            IChunkProvider chunkProvider, IChunkProvider chunkGenerator) {
+        return !WorldUtil.otherModPreventGenerate(chunkX, chunkZ, world, chunkProvider, chunkGenerator);
+    }
+}