From d71b1ca9843f8e7471739236334182e586a132a4 Mon Sep 17 00:00:00 2001
From: dfsek <dfsek@protonmail.com>
Date: Fri, 10 Jun 2022 18:18:31 -0700
Subject: [PATCH] implement ExtrusionColumn

---
 .../extrusion/BiomeExtrusionProvider.java     | 11 +++
 .../biome/extrusion/ExtrusionColumn.java      | 74 +++++++++++++++++++
 2 files changed, 85 insertions(+)
 create mode 100644 common/addons/biome-provider-extrusion/src/main/java/com/dfsek/terra/addons/biome/extrusion/ExtrusionColumn.java

diff --git a/common/addons/biome-provider-extrusion/src/main/java/com/dfsek/terra/addons/biome/extrusion/BiomeExtrusionProvider.java b/common/addons/biome-provider-extrusion/src/main/java/com/dfsek/terra/addons/biome/extrusion/BiomeExtrusionProvider.java
index 4c5e0d241..93eef30dc 100644
--- a/common/addons/biome-provider-extrusion/src/main/java/com/dfsek/terra/addons/biome/extrusion/BiomeExtrusionProvider.java
+++ b/common/addons/biome-provider-extrusion/src/main/java/com/dfsek/terra/addons/biome/extrusion/BiomeExtrusionProvider.java
@@ -1,8 +1,10 @@
 package com.dfsek.terra.addons.biome.extrusion;
 
 import com.dfsek.terra.addons.biome.extrusion.api.Extrusion;
+import com.dfsek.terra.api.util.Column;
 import com.dfsek.terra.api.world.biome.Biome;
 import com.dfsek.terra.api.world.biome.generation.BiomeProvider;
+import com.dfsek.terra.api.world.info.WorldProperties;
 
 import java.util.List;
 import java.util.Set;
@@ -37,4 +39,13 @@ public class BiomeExtrusionProvider implements BiomeProvider {
     public Iterable<Biome> getBiomes() {
         return biomes;
     }
+    
+    public int getResolution() {
+        return resolution;
+    }
+    
+    @Override
+    public Column<Biome> getColumn(int x, int z, WorldProperties properties) {
+        return new ExtrusionColumn(properties, this, x, z);
+    }
 }
diff --git a/common/addons/biome-provider-extrusion/src/main/java/com/dfsek/terra/addons/biome/extrusion/ExtrusionColumn.java b/common/addons/biome-provider-extrusion/src/main/java/com/dfsek/terra/addons/biome/extrusion/ExtrusionColumn.java
new file mode 100644
index 000000000..09031083d
--- /dev/null
+++ b/common/addons/biome-provider-extrusion/src/main/java/com/dfsek/terra/addons/biome/extrusion/ExtrusionColumn.java
@@ -0,0 +1,74 @@
+package com.dfsek.terra.addons.biome.extrusion;
+
+import com.dfsek.terra.api.util.Column;
+import com.dfsek.terra.api.util.function.IntIntObjConsumer;
+import com.dfsek.terra.api.world.biome.Biome;
+import com.dfsek.terra.api.world.info.WorldProperties;
+
+
+public class ExtrusionColumn implements Column<Biome> {
+    private final int min;
+    private final int max;
+    private final BiomeExtrusionProvider provider;
+    private final int x, z;
+    private final long seed;
+    
+    public ExtrusionColumn(WorldProperties worldProperties, BiomeExtrusionProvider provider, int x, int z) {
+        this.min = worldProperties.getMinHeight();
+        this.max = worldProperties.getMaxHeight();
+        this.provider = provider;
+        this.x = x;
+        this.z = z;
+        this.seed = worldProperties.getSeed();
+    }
+    
+    @Override
+    public int getMinY() {
+        return min;
+    }
+    
+    @Override
+    public int getMaxY() {
+        return max;
+    }
+    
+    @Override
+    public int getX() {
+        return x;
+    }
+    
+    @Override
+    public int getZ() {
+        return z;
+    }
+    
+    @Override
+    public Biome get(int y) {
+        return provider.getBiome(x, y, z, seed);
+    }
+    
+    @Override
+    public void forRanges(IntIntObjConsumer<Biome> consumer) {
+        int min = getMinY();
+        
+        int y = min;
+        
+        Biome runningObj = get(y);
+        
+        int runningMin = min;
+        
+        int max = getMaxY() - 1;
+        
+        while(y < max) {
+            y += provider.getResolution();
+            Biome current = get(y);
+            
+            if(!current.equals(runningObj)) {
+                consumer.accept(runningMin, y, runningObj);
+                runningMin = y;
+                runningObj = current;
+            }
+        }
+        consumer.accept(runningMin, ++y, runningObj);
+    }
+}