Added the "Tree" object. Currently unused. This is what needs to be r…

…egistered via the custom registry

src/main/java/net/dries007/tfc/objects/Wood.java

@@ -7,6 +7,7 @@
 
 import net.dries007.tfc.objects.trees.ITreeGenerator;
 import net.dries007.tfc.objects.trees.TreeGenNormal;
+import net.dries007.tfc.objects.trees.TreeGenTall;
 
 public enum Wood
 {

src/main/java/net/dries007/tfc/objects/trees/Tree.java

@@ -0,0 +1,54 @@
+/*
+ * Work under Copyright. Licensed under the EUPL.
+ * See the project README.md and LICENSE.txt for more information.
+ *
+ */
+
+package net.dries007.tfc.objects.trees;
+
+// This is the thing that will be registered
+public class Tree
+{
+    // Properties to be accessed by world gen
+    public final float minTemp;
+    public final float maxTemp;
+    public final float minRain;
+    public final float maxRain;
+    public final float minEVT;
+    public final float maxEVT;
+
+    // Used when growing a tree
+    public final ITreeGenerator gen;
+    public final int maxGrowthRadius;
+
+    /**
+     * This is the object that should be registered via the custom registry event
+     * It needs to have a string name, which is used similar to how the enum is used.
+     * It also needs to have an int index, which will be used by the worldgen to save and load this value
+     *
+     * Addon mods that want to add trees should subscribe to the registry event for this class
+     * They also must put (in their mod) the required resources in /assets/tfc/...
+     * That way there is no need for custom logic during tree generation
+     *
+     * @param minTemp min temperature
+     * @param maxTemp max temperature
+     * @param minRain min rainfall
+     * @param maxRain max rainfall
+     * @param minEVT  min EVT
+     * @param maxEVT  max EVT
+     * @param gen     the generator that should be called to generate this tree, both during world gen and when growing from a sapling
+     */
+    public Tree(float minTemp, float maxTemp, float minRain, float maxRain, float minEVT, float maxEVT, ITreeGenerator gen, int maxGrowthRadius)
+    {
+        this.minTemp = minTemp;
+        this.maxTemp = maxTemp;
+        this.minRain = minRain;
+        this.maxRain = maxRain;
+        this.minEVT = minEVT;
+        this.maxEVT = maxEVT;
+
+        this.gen = gen;
+        this.maxGrowthRadius = maxGrowthRadius;
+
+    }
+}