From 14341b52b90978a5d618a7761afc594afaf5e080 Mon Sep 17 00:00:00 2001
From: Kevin Turner <83819+keturn@users.noreply.github.com>
Date: Sat, 23 May 2020 17:53:42 -0700
Subject: [PATCH] feat(build): examples of how to set native library path

for gradle and intellij
---
 .../TerasologyPC__permissive_security_.xml    |  2 +-
 facades/PC/build.gradle                       | 42 +++++++++++++++++++
 2 files changed, 43 insertions(+), 1 deletion(-)

diff --git a/.idea/runConfigurations/TerasologyPC__permissive_security_.xml b/.idea/runConfigurations/TerasologyPC__permissive_security_.xml
index 39eeab2588a..5a4862eb803 100644
--- a/.idea/runConfigurations/TerasologyPC__permissive_security_.xml
+++ b/.idea/runConfigurations/TerasologyPC__permissive_security_.xml
@@ -4,7 +4,7 @@
     <module name="Terasology.facades.PC.main" />
     <option name="PROGRAM_PARAMETERS" value="-homedir -noCrashReport -permissiveSecurity" />
     <shortenClasspath name="MANIFEST" />
-    <option name="VM_PARAMETERS" value="-Xms256m -Xmx1536m" />
+    <option name="VM_PARAMETERS" value="-Xms256m -Xmx1536m -Djava.library.path=$TERASOLOGY_NATIVES$" />
     <extension name="coverage">
       <pattern>
         <option name="PATTERN" value="org.terasology.engine.*" />
diff --git a/facades/PC/build.gradle b/facades/PC/build.gradle
index 62218f8ba32..adfefaa23c0 100644
--- a/facades/PC/build.gradle
+++ b/facades/PC/build.gradle
@@ -1,8 +1,25 @@
+/*
+ * Copyright 2020 MovingBlocks
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 // The PC facade is responsible for the primary distribution - a plain Java application runnable on PCs
 
 // Grab all the common stuff like plugins to use, artifact repositories, code analysis config
 apply from: "$rootDir/config/gradle/publish.gradle"
 
+import org.apache.tools.ant.taskdefs.condition.Os
 import org.apache.tools.ant.filters.FixCrLfFilter
 import java.text.SimpleDateFormat;
 import groovy.json.JsonBuilder
@@ -10,6 +27,29 @@ import groovy.json.JsonBuilder
 def dateTimeFormat = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ssXXX")
 dateTimeFormat.timeZone = TimeZone.getTimeZone("UTC")
 
+
+/**
+ * The subdirectory for this development environment.
+ *
+ * Only use this to run local processes. When building releases, you will be targeting other
+ * operating systems in addition to your own.
+ *
+ * @return
+ */
+def String nativeSubdirectoryName() {
+    if (Os.isFamily(Os.FAMILY_WINDOWS)) {
+        return "windows"
+    } else if (Os.isFamily(Os.FAMILY_MAC)) {
+        return "macosx"
+    } else if (Os.isFamily(Os.FAMILY_UNIX)) {
+        return "linux"
+    } else {
+        logger.warn("What kind of libraries do you use on this? {}", System.properties["os.name"])
+        return "UNKNOWN"
+    }
+}
+
+
 ext {
     // Default path to store server data if running headless via Gradle
     localServerDataPath = 'terasology-server'
@@ -101,6 +141,8 @@ task game(type:JavaExec) {
     args "-homedir"
     jvmArgs ["-Xmx1536m"]
 
+    systemProperty("java.library.path", rootProject.file(dirNatives + "/" + nativeSubdirectoryName()))
+
     // Classpath: PC itself, engine classes, engine dependencies. Not modules or natives since the engine finds those
     classpath sourceSets.main.output.classesDirs
     classpath sourceSets.main.output.resourcesDir