Refactor source layout

Introduce compat source sets and move all kotlin sources to the main directory

[no changelog]

src/main/kotlin/events/IsSlotProtectedEvent.kt

@@ -0,0 +1,46 @@
+
+
+package moe.nea.firmament.events
+
+import net.minecraft.item.ItemStack
+import net.minecraft.screen.slot.Slot
+import net.minecraft.screen.slot.SlotActionType
+import net.minecraft.text.Text
+import moe.nea.firmament.util.CommonSoundEffects
+import moe.nea.firmament.util.MC
+
+data class IsSlotProtectedEvent(
+    val slot: Slot?,
+    val actionType: SlotActionType,
+    var isProtected: Boolean,
+    val itemStackOverride: ItemStack?,
+    var silent: Boolean = false,
+) : FirmamentEvent() {
+    val itemStack get() = itemStackOverride ?: slot!!.stack
+
+    fun protect() {
+        isProtected = true
+    }
+
+    fun protectSilent() {
+        if (!isProtected) {
+            silent = true
+        }
+        isProtected = true
+    }
+
+    companion object : FirmamentEventBus<IsSlotProtectedEvent>() {
+        @JvmStatic
+        @JvmOverloads
+        fun shouldBlockInteraction(slot: Slot?, action: SlotActionType, itemStackOverride: ItemStack? = null): Boolean {
+            if (slot == null && itemStackOverride == null) return false
+            val event = IsSlotProtectedEvent(slot, action, false, itemStackOverride)
+            publish(event)
+            if (event.isProtected && !event.silent) {
+                MC.player?.sendMessage(Text.translatable("firmament.protectitem").append(event.itemStack.name))
+                CommonSoundEffects.playFailure()
+            }
+            return event.isProtected
+        }
+    }
+}