Complete Kotlin-DSL Gradle scripting for multiple projects.

Added the shadow plugin integration with the entire project. Indvidual
modules each have their designated dependencies and each will assign
various dependencies based on constants now made through buildSrc.

Signed-off-by: Gabriel Harris-Rouquette <gabizou@me.com>

sponge/api7/build.gradle.kts

@@ -1,12 +1,47 @@
-plugins {
-    java
-    // Apply the spongegradle plugin to generate the metadata file
-    id("org.spongepowered.plugin") version "0.9.0" // supplies sponge repo and plugin metadata creation tasks
+import net.minecraftforge.gradle.user.UserBaseExtension
+import Config.Libs.Sponge.API7 as API7
+
+buildscript {
+    repositories {
+        jcenter()
+        maven(Repos.forge)
+    }
+    dependencies {
+        classpath(Plugins.FG2_3.classpath)
+    }
 }
+// Extension created to set up the minecraft block for ForgeGradle. This should change in FG3.
+val Project.minecraft: UserBaseExtension
+    get() = extensions.getByName<UserBaseExtension>(Plugins.FG2_3.extensionName)
+
+plugins {
+    `java-library`
+    // Apply the spongegradle plugin to generate the metadata file
+    id(Config.Libs.Sponge.API7.spongeGradleId) version Config.Libs.Sponge.API7.spongeGradleVersion // supplies sponge repo and plugin metadata creation tasks
+}
+apply(plugin = API7.forgeGradleId)
 
 dependencies {
-    compile("org.spongepowered", "spongeapi", "7.1.0")  // SpongeAPI
-    compile("org.bstats", "bstats-sponge", "1.4") // Sponge bstats
+    compileOnly(API7.api)  // SpongeAPI
+}
+
+configure<UserBaseExtension> {
+    version = API7.minecraftVersion
+    runDir = "run"
+    mappings = API7.mappings
+}
+
+tasks.withType<Jar> {
+    inputs.properties += "version" to project.version
+    inputs.properties += "mcversion" to project.minecraft.version
+
+    baseName = "mcmmo"
+
+    filesMatching("/mcmod.info") {
+        expand(mapOf(
+                "version" to project.version,
+                "mcversion" to project.minecraft.version
+        ))
+    }
 }
 
-description = "mcMMO for Sponge"

sponge/api7/gradle.properties

@@ -0,0 +1,3 @@
+mod_name = "mcmmo"
+mod_version = "2.2-SNAPSHOT"
+mc_version = "1.12.2"

sponge/api7/src/main/java/com/gmail/nossr50/sponge/api7/API7Plugin.java

@@ -0,0 +1,19 @@
+package com.gmail.nossr50.sponge.api7;
+
+import net.minecraft.item.Item;
+import org.spongepowered.api.event.Listener;
+import org.spongepowered.api.event.game.GameRegistryEvent;
+import org.spongepowered.api.item.ItemType;
+import org.spongepowered.api.plugin.Plugin;
+
+@Plugin(id = "mcmmo", name = "mcMMO", description = "mcMMO for Sponge")
+public class API7Plugin {
+
+    @SuppressWarnings("ConstantConditions")
+    @Listener
+    public void onRegister(GameRegistryEvent.Register<ItemType> event) {
+        Item derp = new Item(); // NMS!!!
+        event.register((ItemType) derp); // Since sponge mixes into Item, we can cast.
+    }
+
+}

sponge/build.gradle.kts

@@ -1,31 +1,29 @@
+import Config.Libs.Sponge as Sponge
+
 plugins {
     java
 }
 
-val core: Project by rootProject.extra
-val sponge: Project by rootProject.extra
+val core = Projects.core!! // because it's a var and potentially null by declaration
+val sponge = Projects.sponge!! // because it's a var and potentially null by declaration
 
 description = "mcMMO for Sponge"
 
-repositories {
-    // sponge
-    maven("https://repo.spongepowered.org/maven")
-}
-
 dependencies {
-    implementation(group="org.spongepowered", name="spongeapi", version="7.1.0") // Base version
+    compile(Sponge.bstats) // Bstats is used for all sponge versions
+    compileOnly(Sponge.API7.api) // Base version
 }
 
 allprojects {
     dependencies {
-        compile(core)
+        compile(Projects.core!!)
     }
 }
 
 subprojects {
     dependencies {
-        (compile(sponge) as ModuleDependency).apply {
-            exclude("org.spongepowered")
+        (compileOnly(sponge) as ModuleDependency).apply {
+            exclude(Sponge.Exclude.group, Sponge.Exclude.module)
         }
     }
 }