fix(compatibility): correct Optional.Interface stripping | fixes #42

Re-add IMjReceiver to ForgeReceiver - Strip interface if BC isn't loaded

Author: ROMVoid95

src/main/java/micdoodle8/mods/galacticraft/core/GalacticraftCore.java

@@ -198,7 +198,7 @@
 @Mod(modid = Constants.MOD_ID_CORE,
     name = GalacticraftCore.NAME,
     version = Constants.VERSION,
-    dependencies = "required-after:forge@[14.23.5.2860,);",
+    dependencies = "required-after:forge@[14.23.5.2847,);",
     useMetadata = true,
     acceptedMinecraftVersions = "[1.12, 1.13)",
     guiFactory = "micdoodle8.mods.galacticraft.core.client.gui.screen.ConfigGuiFactoryCore",

src/main/java/micdoodle8/mods/galacticraft/core/energy/tile/TileBaseUniversalElectrical.java

@@ -1,6 +1,7 @@
 package micdoodle8.mods.galacticraft.core.energy.tile;
 
 import buildcraft.api.mj.IMjConnector;
+import buildcraft.api.mj.IMjReceiver;
 import buildcraft.api.mj.MjAPI;
 import ic2.api.energy.tile.IEnergyEmitter;
 import ic2.api.energy.tile.IEnergyTile;
@@ -513,7 +514,8 @@ public <T> T getCapability(Capability<T> capability, EnumFacing facing)
         return super.getCapability(capability, facing);
     }
 
-    private static class ForgeReceiver implements net.minecraftforge.energy.IEnergyStorage
+    @Optional.Interface(modid = "buildcraftenergy", iface = "buildcraft.api.mj.IMjReceiver")
+    private static class ForgeReceiver implements net.minecraftforge.energy.IEnergyStorage, IMjReceiver
     {
 
         private TileBaseUniversalElectrical tile;

src/main/java/micdoodle8/mods/galacticraft/core/energy/tile/TileBaseUniversalElectricalSource.java

@@ -250,7 +250,7 @@ public boolean hasCapability(Capability<?> cap, EnumFacing side)
     @Override
     public <T> T getCapability(Capability<T> cap, EnumFacing side)
     {
-        if (cap == CapabilityEnergy.ENERGY && this.canOutputEnergy(side))
+        if (cap == CapabilityEnergy.ENERGY && this.getElectricalOutputDirections().contains(side))
             return (T) new ForgeEmitter(this);
         if (cap != null && (cap == EnergyUtil.mekCableOutput || cap == EnergyUtil.mekEnergyStorage))
         {