Allow Stocking Buses/Hatches to respect Paint when selecting inputs.

docs/content/Modpacks/Changes/v8.0.0.md

@@ -141,6 +141,11 @@ A few regexes for fixing all the MCMeta files is follows, run them in order:
 ## IRecipeHandler nullability
 Previously, `handleRecipeInner` should return `null` when there's nothing left to process. This has been changed to requiring an empty list (e.g. the list of remaining ingredients). Returning `null` is now wrong and will crash (NPE).
 
+## Painted ME Stocking Input Buses/Hatches
+Multiple ME Stocking buses/hatches on a single machine cannot contain the same input, unless one of the buses is set to
+Distinct. This update alters that behavior to allow Stocking buses/hatches with different Paint colors to contain the
+same inputs, allowing those inputs to be present in multiple distinct paint groups.
+
 ## Empty content check for recipe capabilities
 As a recipe-matching optimization, input handlers whose `getTotalContentAmount()` returns `0` are now skipped during recipe handling. If your `RecipeCapability` has handlers that legitimately report a total content amount of `0` but can still satisfy a recipe (e.g. rate-based capabilities like computation/CWU, where nothing is "stored" but the handler can still provide), you must now override `RecipeCapability#skipEmptyContentCheck()` to return `true`, otherwise these capabilities will break (their handlers will never be run).
 

src/main/java/com/gregtechceu/gtceu/integration/ae2/machine/MEStockingBusPartMachine.java

@@ -158,11 +158,14 @@ public boolean testConfiguredInOtherPart(@Nullable GenericStack config) {
 
         // Otherwise, we need to test for if the item is configured
         // in any stocking bus in the multi (besides ourselves).
+        // Duplicate configurations are allowed for Distinct Buses, and Painted Buses of different colors.
         for (MultiblockControllerMachine controller : getControllers()) {
             for (IMultiPart part : controller.getParts()) {
                 if (part instanceof MEStockingBusPartMachine bus) {
                     // We don't need to check for ourselves, as this case is handled elsewhere.
-                    if (bus == this || bus.isDistinct()) continue;
+                    if (bus == this || bus.isDistinct() ||
+                            (bus.getPaintingColor() != this.getPaintingColor()))
+                        continue;
                     if (bus.aeItemHandler.hasStackInConfig(config, false)) {
                         return true;
                     }

src/main/java/com/gregtechceu/gtceu/integration/ae2/machine/MEStockingHatchPartMachine.java

@@ -147,11 +147,14 @@ public IConfigurableSlotList getSlotList() {
     public boolean testConfiguredInOtherPart(@Nullable GenericStack config) {
         if (config == null) return false;
         if (!isFormed()) return false;
-
+        // Test for if the fluid is configured in any stocking hatch in the multi (besides ourselves).
+        // Duplicate configurations are allowed for Painted Hatches of different colors.
         for (MultiblockControllerMachine controller : getControllers()) {
             for (IMultiPart part : controller.getParts()) {
                 if (part instanceof MEStockingHatchPartMachine hatch) {
-                    if (hatch == this) continue;
+                    if (hatch == this ||
+                            (hatch.getPaintingColor() != this.getPaintingColor()))
+                        continue;
                     if (hatch.aeFluidHandler.hasStackInConfig(config, false)) {
                         return true;
                     }