Add custom colorfulhearts entry point for fabric mods

fabric/src/main/java/terrails/colorfulhearts/fabric/LoaderExpectPlatformImpl.java

@@ -2,9 +2,11 @@
 
 import net.fabricmc.loader.api.FabricLoader;
 import net.minecraft.client.gui.GuiGraphics;
+import terrails.colorfulhearts.CColorfulHearts;
 import terrails.colorfulhearts.api.event.HeartRenderEvent;
 import terrails.colorfulhearts.api.event.HeartRegistry;
 import terrails.colorfulhearts.api.heart.drawing.StatusEffectHeart;
+import terrails.colorfulhearts.fabric.api.event.ColorfulHeartsApi;
 import terrails.colorfulhearts.fabric.api.event.FabHeartEvents;
 
 public class LoaderExpectPlatformImpl {
@@ -35,6 +37,18 @@ public static void postRenderEvent(GuiGraphics guiGraphics, int x, int y, boolea
     }
 
     public static void heartRegistryEvent(HeartRegistry registry) {
+        FabricLoader.getInstance().getEntrypointContainers("colorfulhearts", ColorfulHeartsApi.class).forEach(entryPoint -> {
+            String modId = entryPoint.getProvider().getMetadata().getId();
+            try {
+                CColorfulHearts.LOGGER.info("Loading ColorfulHeartsApi implementation of mod {}", modId);
+                ColorfulHeartsApi api = entryPoint.getEntrypoint();
+                api.registerHearts(registry);
+                CColorfulHearts.LOGGER.debug("Loaded ColorfulHeartsApi implementation of mod {}", modId);
+            } catch (Throwable e) {
+                CColorfulHearts.LOGGER.error("Could not load ColorfulHeartsApi implementation of mod {}", modId, e);
+            }
+        });
+
         FabHeartEvents.HEART_REGISTRY.invoker().accept(registry);
     }
 

fabric/src/main/java/terrails/colorfulhearts/fabric/api/event/ColorfulHeartsApi.java

@@ -0,0 +1,12 @@
+package terrails.colorfulhearts.fabric.api.event;
+
+import terrails.colorfulhearts.api.event.HeartRegistry;
+
+/**
+ * Custom "colorfulhearts" entryPoint type for fabric.mod.json
+ * An alternative to events
+ */
+public interface ColorfulHeartsApi {
+
+    void registerHearts(HeartRegistry registry);
+}

forge/src/main/java/terrails/colorfulhearts/forge/api/event/ForgeHeartRegistryEvent.java

@@ -5,6 +5,11 @@
 import terrails.colorfulhearts.api.event.HeartRegistry;
 import terrails.colorfulhearts.api.heart.drawing.StatusEffectHeart;
 
+/**
+ * Used to register custom heart types. Currently, it can only be used to register status effect type hearts.
+ * IMPORTANT: Make sure to register an event listener on the mod-loader bus and not on the regular Forge bus
+ *              as the event is run before the regular event bus is initialized
+ */
 public class ForgeHeartRegistryEvent extends Event implements IModBusEvent {
 
     private final HeartRegistry registry;