Added files for part 24; Loading and Saving

24-loading-and-saving/Assets/Data/Biomes/Desert.asset

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+%YAML 1.1
+%TAG !u! tag:unity3d.com,2011:
+--- !u!114 &11400000
+MonoBehaviour:
+  m_ObjectHideFlags: 0
+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  m_GameObject: {fileID: 0}
+  m_Enabled: 1
+  m_EditorHideFlags: 0
+  m_Script: {fileID: 11500000, guid: 604863bef2f81714b90b56811bb2841f, type: 3}
+  m_Name: Desert
+  m_EditorClassIdentifier: 
+  biomeName: Desert
+  offset: 6545
+  scale: 0.058
+  terrainHeight: 10
+  terrainScale: 0.05
+  surfaceBlock: 4
+  subSurfaceBlock: 4
+  majorFloraIndex: 1
+  majorFloraZoneScale: 1.06
+  majorFloraZoneThreshold: 0.75
+  majorFloraPlacementScale: 7.5
+  majorFloraPlacementThreshold: 0.8
+  placeMajorFlora: 1
+  majorFloraMaxTreeHeight: 3
+  majorFloraMinTreeHeight: 2
+  lodes:
+  - nodeName: Dirt
+    blockID: 5
+    minHeight: 1
+    maxHeight: 255
+    scale: 0.1
+    threshold: 0.5
+    noiseOffset: 0
+  - nodeName: Sand
+    blockID: 4
+    minHeight: 30
+    maxHeight: 60
+    scale: 0.2
+    threshold: 0.6
+    noiseOffset: 500

24-loading-and-saving/Assets/Data/Biomes/Forest.asset

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+%YAML 1.1
+%TAG !u! tag:unity3d.com,2011:
+--- !u!114 &11400000
+MonoBehaviour:
+  m_ObjectHideFlags: 0
+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  m_GameObject: {fileID: 0}
+  m_Enabled: 1
+  m_EditorHideFlags: 0
+  m_Script: {fileID: 11500000, guid: 604863bef2f81714b90b56811bb2841f, type: 3}
+  m_Name: Forest
+  m_EditorClassIdentifier: 
+  biomeName: Forest
+  offset: 87544
+  scale: 0.17
+  terrainHeight: 80
+  terrainScale: 0.3
+  surfaceBlock: 5
+  subSurfaceBlock: 5
+  majorFloraIndex: 0
+  majorFloraZoneScale: 1.3
+  majorFloraZoneThreshold: 0.384
+  majorFloraPlacementScale: 5
+  majorFloraPlacementThreshold: 0.755
+  placeMajorFlora: 1
+  majorFloraMaxTreeHeight: 16
+  majorFloraMinTreeHeight: 5
+  lodes:
+  - nodeName: Dirt
+    blockID: 5
+    minHeight: 1
+    maxHeight: 255
+    scale: 0.1
+    threshold: 0.5
+    noiseOffset: 0
+  - nodeName: Sand
+    blockID: 4
+    minHeight: 30
+    maxHeight: 60
+    scale: 0.2
+    threshold: 0.6
+    noiseOffset: 500

24-loading-and-saving/Assets/Data/Biomes/Grasslands.asset

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+%YAML 1.1
+%TAG !u! tag:unity3d.com,2011:
+--- !u!114 &11400000
+MonoBehaviour:
+  m_ObjectHideFlags: 0
+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  m_GameObject: {fileID: 0}
+  m_Enabled: 1
+  m_EditorHideFlags: 0
+  m_Script: {fileID: 11500000, guid: 604863bef2f81714b90b56811bb2841f, type: 3}
+  m_Name: Grasslands
+  m_EditorClassIdentifier: 
+  biomeName: Grasslands
+  offset: 1234
+  scale: 0.042
+  terrainHeight: 22
+  terrainScale: 0.15
+  surfaceBlock: 3
+  subSurfaceBlock: 5
+  majorFloraIndex: 0
+  majorFloraZoneScale: 1.3
+  majorFloraZoneThreshold: 0.6
+  majorFloraPlacementScale: 15
+  majorFloraPlacementThreshold: 0.8
+  placeMajorFlora: 1
+  majorFloraMaxTreeHeight: 12
+  majorFloraMinTreeHeight: 5
+  lodes:
+  - nodeName: Dirt
+    blockID: 5
+    minHeight: 1
+    maxHeight: 255
+    scale: 0.1
+    threshold: 0.5
+    noiseOffset: 0
+  - nodeName: Sand
+    blockID: 4
+    minHeight: 30
+    maxHeight: 60
+    scale: 0.2
+    threshold: 0.6
+    noiseOffset: 500

24-loading-and-saving/Assets/Editor/AtlasPacker.cs

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+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+using UnityEditor;
+using System.IO;
+
+public class AtlasPacker : EditorWindow {
+
+    int blockSize = 16; // Block size in pixels.
+    int atlasSizeInBlocks = 16;
+    int atlasSize;
+
+    Object[] rawTextures = new Object[256];
+    List<Texture2D> sortedTextures = new List<Texture2D>();
+    Texture2D atlas;
+
+    [MenuItem ("Minecraft Clone/Atlas Packer")] // Create a menu item to show the window.
+
+    public static void ShowWindow() {
+
+        EditorWindow.GetWindow(typeof(AtlasPacker));
+
+    }
+
+    private void OnGUI() {
+
+        atlasSize = blockSize * atlasSizeInBlocks;
+
+        GUILayout.Label("Minecraft Cone Texture Atlas Packer", EditorStyles.boldLabel);
+
+        blockSize = EditorGUILayout.IntField("Block Size", blockSize);
+        atlasSizeInBlocks = EditorGUILayout.IntField("Atlas Size (in blocks)", atlasSizeInBlocks);
+
+        GUILayout.Label(atlas);
+
+        if (GUILayout.Button("Load Textures")) {
+
+            LoadTextures();
+            PackAtlas();
+
+            Debug.Log("Atlas Packer: Textures loaded.");
+
+        }
+
+        if (GUILayout.Button("Clear Textures")) {
+
+            atlas = new Texture2D(atlasSize, atlasSize);
+            Debug.Log("Atlas Packer: Textures cleared.");
+
+        }
+
+        if (GUILayout.Button("Save Atlas")) {
+
+            byte[] bytes = atlas.EncodeToPNG();
+            try {
+                File.WriteAllBytes(Application.dataPath + "/Textures/Packed_Atlas.png", bytes);
+                Debug.Log("Atlas Packer: Atlas file sucessfully saved. " + bytes.Length);
+            } catch {
+                Debug.Log("Atlas Packer: Couldn't save atlas to file.");
+            }
+
+        }
+
+    }
+
+    void LoadTextures () {
+
+        // Editor variables don't get wiped so we need to clear this list or it will keep growing.
+        sortedTextures.Clear();
+
+        rawTextures = Resources.LoadAll("AtlasPacker", typeof(Texture2D));
+
+        // Loop through each one and perform any checks we want to perform.
+        int index = 0;
+        foreach (Object tex in rawTextures) {
+
+            // Convert the current object into a texture and check that it's the correct size before adding.
+            Texture2D t = (Texture2D)tex;
+            if (t.width == blockSize && t.height == blockSize)
+                sortedTextures.Add(t);
+            else
+                Debug.Log("Asset Packer: " + tex.name + " incorrect size. Texture not loaded.");
+
+            index++;
+
+        }
+
+        Debug.Log("Atlas Packer: " + sortedTextures.Count + " successfully loaded.");
+
+    }
+
+    void PackAtlas () {
+
+        atlas = new Texture2D(atlasSize, atlasSize);
+        Color[] pixels = new Color[atlasSize * atlasSize];
+
+        for (int x = 0; x < atlasSize; x++) {
+            for (int y = 0; y < atlasSize; y++) {
+
+                // Get the current block that we're looking at.
+                int currentBlockX = x / blockSize;
+                int currentBlockY = y / blockSize;
+
+                int index = currentBlockY * atlasSizeInBlocks + currentBlockX;
+
+                // Get the pixel in the current block.
+                int currentPixelX = x - (currentBlockX * blockSize);
+                int currentPixelY = y - (currentBlockY * blockSize);
+
+                if (index < sortedTextures.Count)
+                    pixels[(atlasSize - y - 1) * atlasSize + x] = sortedTextures[index].GetPixel(x, blockSize - y - 1);
+                else
+                    pixels[(atlasSize - y - 1) * atlasSize + x] = new Color(0f, 0f, 0f, 0f);
+
+            }
+        }
+
+        atlas.SetPixels(pixels);
+        atlas.Apply();
+
+    }
+
+}