From 48becd31f4e672cc1e797a4a3e348c33c8f946ff Mon Sep 17 00:00:00 2001
From: Petter Arvidsson <petter.arvidsson@gmail.com>
Date: Mon, 21 Nov 2016 11:44:00 +0100
Subject: [PATCH] Add possibility to leave saplings

---
 build.gradle                                          |  2 +-
 .../java/org/konstructs/forest/CanATreeGrowHere.java  | 10 +++++++---
 src/main/java/org/konstructs/forest/ForestConfig.java | 11 +++++++++--
 src/main/resources/reference.conf                     |  3 +++
 4 files changed, 20 insertions(+), 6 deletions(-)

diff --git a/build.gradle b/build.gradle
index 2e0e1e5..4433b57 100644
--- a/build.gradle
+++ b/build.gradle
@@ -12,5 +12,5 @@ compileJava {
 }
 
 dependencies {
-    compile group: 'org.konstructs', name: 'konstructs-server-api', version: '0.1.6'
+    compile group: 'org.konstructs', name: 'konstructs-server-api', version: '0.1.19'
 }
diff --git a/src/main/java/org/konstructs/forest/CanATreeGrowHere.java b/src/main/java/org/konstructs/forest/CanATreeGrowHere.java
index 61d1777..0245631 100644
--- a/src/main/java/org/konstructs/forest/CanATreeGrowHere.java
+++ b/src/main/java/org/konstructs/forest/CanATreeGrowHere.java
@@ -1,6 +1,7 @@
 package org.konstructs.forest;
 
 import java.util.Map;
+import java.util.Random;
 
 import akka.actor.ActorRef;
 import akka.actor.Props;
@@ -10,6 +11,7 @@
 import konstructs.api.messages.BoxQueryResult;
 
 class CanATreeGrowHere extends KonstructsActor {
+    private final Random random = new Random();
     private final Position position;
     private final ForestConfig config;
     private final BlockTypeId leaves;
@@ -50,12 +52,14 @@ private void queryForCrown() {
 
     private void canGrow() {
         getContext().parent().tell(new PlantTree(position), getSelf());
-        getContext().stop(getSelf()); /* We are done, let's die*/
+        getContext().stop(getSelf()); /* We are done, let's die */
     }
 
     private void canNotGrow() {
-        replaceWithVacuum(saplingFilter, position); /* Remove the sapling */
-        getContext().stop(getSelf()); /* We are done, let's die*/
+        if(random.nextInt(10000) > config.getLeaveSaplingProbability()) {
+            replaceWithVacuum(saplingFilter, position); /* Remove the sapling */
+        }
+        getContext().stop(getSelf()); /* We are done, let's die */
     }
 
     @Override
diff --git a/src/main/java/org/konstructs/forest/ForestConfig.java b/src/main/java/org/konstructs/forest/ForestConfig.java
index c591986..49d87a3 100644
--- a/src/main/java/org/konstructs/forest/ForestConfig.java
+++ b/src/main/java/org/konstructs/forest/ForestConfig.java
@@ -24,6 +24,7 @@ public class ForestConfig {
     private final int seedEveryGeneration;
     private final int randomGrowth;
     private final int leafDecayDelay;
+    private final int leaveSaplingProbability;
 
     ForestConfig(Config config) {
         this(config.getString("wood-block"),
@@ -45,7 +46,8 @@ public class ForestConfig {
              config.getInt("max-seeds-per-generation"),
              config.getInt("seed-every-generation"),
              config.getInt("random-growth"),
-             config.getInt("leaf-decay-delay"));
+             config.getInt("leaf-decay-delay"),
+             config.getInt("leave-sapling-probability"));
     }
 
     ForestConfig(String wood,
@@ -67,7 +69,8 @@ public class ForestConfig {
                  int maxSeedsPerGeneration,
                  int seedEveryGeneration,
                  int randomGrowth,
-                 int leafDecayDelay) {
+                 int leafDecayDelay,
+                 int leaveSaplingProbability) {
         this.wood = BlockTypeId.fromString(wood);
         this.leaves = BlockTypeId.fromString(leaves);
         this.thinLeaves = BlockTypeId.fromString(thinLeaves);
@@ -88,6 +91,7 @@ public class ForestConfig {
         this.seedEveryGeneration = seedEveryGeneration;
         this.randomGrowth = randomGrowth;
         this.leafDecayDelay = leafDecayDelay;
+        this.leaveSaplingProbability = leaveSaplingProbability;
     }
 
     public BlockTypeId getWood() {
@@ -150,4 +154,7 @@ public int getRandomGrowth() {
     public int getLeafDecayDelay() {
         return leafDecayDelay;
     }
+    public int getLeaveSaplingProbability() {
+        return leaveSaplingProbability;
+    }
 }
diff --git a/src/main/resources/reference.conf b/src/main/resources/reference.conf
index 6e59e45..7f73396 100644
--- a/src/main/resources/reference.conf
+++ b/src/main/resources/reference.conf
@@ -21,6 +21,7 @@ konstructs {
     seed-every-generation = 4
     random-growth = 2
     leaf-decay-delay = 5000
+    leave-sapling-probability = 3000
   }
   org/konstructs/forest/beech {
     class = "org.konstructs.forest.ForestPlugin"
@@ -44,6 +45,7 @@ konstructs {
     seed-every-generation = 2
     random-growth = 1
     leaf-decay-delay = 5000
+    leave-sapling-probability = 1000
   }
   org/konstructs/forest/birch {
     class = "org.konstructs.forest.ForestPlugin"
@@ -67,6 +69,7 @@ konstructs {
     seed-every-generation = 3
     random-growth = 6
     leaf-decay-delay = 5000
+    leave-sapling-probability = 2000
   }
   org/konstructs/block-manager {
     classes {