fix fluid conduit connecting to non-fluid GT tiles

Co-Authored-By: miozune <[email protected]>

dependencies.gradle

@@ -1,5 +1,7 @@
 dependencies {
     implementation("net.industrial-craft:industrialcraft-2:2.2.828-experimental:dev")
+    api('com.github.GTNewHorizons:EnderCore:0.3.0:dev')
+    implementation("com.github.GTNewHorizons:EnderIO:2.4.16:dev")
     implementation("curse.maven:cofh-core-69162:2388751")
     implementation(fileTree(dir: 'libs/', include: '*.jar'))
 }

src/main/java/space/gtimpact/mixinmodule/mixinplugin/Mixin.java

@@ -39,7 +39,9 @@ public enum Mixin {
 
     OreDictionaryArbiter_Mixin("cofh.OreDictionaryArbiter_Mixin", COFH, VANILLA),
     CoFHCoreUpdate_Mixin_Mixin("cofh.CoFHCoreUpdate_Mixin", COFH, VANILLA),
+    AbstractLiquidConduit_Mixin("ei.AbstractLiquidConduit_Mixin", EI, GREGTECH, VANILLA),
     ;
+
     public final String mixinClass;
     public final List<TargetedMod> targetedMods;
     private final Side side;

src/main/java/space/gtimpact/mixinmodule/mixinplugin/TargetedMod.java

@@ -19,6 +19,8 @@ public enum TargetedMod {
     AE("Applied Energistics 2", "appliedenergistics2", true),
     AE2FC("Fluid Craft For AE2", "ae2fc", true),
     COFH("CoFHCore", "CoFHCore", true),
+    EC2("Extra Cells 2", "extracells", true),
+    EI("Ender IO", "EnderIO", true),
     ;
 
     public final String modName;

src/main/java/space/gtimpact/mixinmodule/mixins/ei/AbstractLiquidConduit_Mixin.java

@@ -0,0 +1,34 @@
+package space.gtimpact.mixinmodule.mixins.ei;
+
+import crazypants.enderio.conduit.liquid.AbstractLiquidConduit;
+import gregtech.api.interfaces.metatileentity.IMetaTileEntity;
+import gregtech.api.interfaces.tileentity.IGregTechTileEntity;
+import net.minecraftforge.common.util.ForgeDirection;
+import net.minecraftforge.fluids.IFluidHandler;
+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.CallbackInfoReturnable;
+
+@Mixin(AbstractLiquidConduit.class)
+public abstract class AbstractLiquidConduit_Mixin {
+
+    @Shadow(remap = false) public abstract IFluidHandler getExternalHandler(ForgeDirection direction);
+
+    @Inject(method = "canConnectToExternal", at = @At("HEAD"), remap = false, cancellable = true)
+    private void canConnectToExternal(ForgeDirection direction, boolean ignoreDisabled, CallbackInfoReturnable<Boolean> cir) {
+        IFluidHandler h = getExternalHandler(direction);
+        if (h == null) {
+            cir.setReturnValue(false);
+            return;
+        }
+
+        if (h instanceof IGregTechTileEntity) {
+            IMetaTileEntity mte = ((IGregTechTileEntity) h).getMetaTileEntity();
+            cir.setReturnValue(mte != null && mte.getCapacity() > 0);
+            return;
+        }
+        cir.setReturnValue(true);
+    }
+}