Added textures to maps

Game/Assets/Scripts/Unity/InitializeScript.cs.meta

@@ -0,0 +1,12 @@
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+guid: e6476d0467e3fbd47a0b69d427d68e48
+timeCreated: 1431068945
+licenseType: Free
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+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: -100
+  icon: {instanceID: 0}
+  userData: 
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Game/Assets/Scripts/Unity/TerrainGeneratorScript.cs

@@ -1,10 +1,10 @@
-using UnityEngine;
+using System;
 using System.Collections;
-using TransportGame.Utils;
-using System.Threading;
+using System.Linq;
 using TransportGame.Generator;
 using TransportGame.Model;
-using TransportGame.Business;
+using TransportGame.Utils;
+using UnityEngine;
 
 public class TerrainGeneratorScript : MonoBehaviour
 {
@@ -13,6 +13,7 @@ public class TerrainGeneratorScript : MonoBehaviour
 	public int TerrainWidth = 1024;
 	public int TerrainHeight = 1024;
 	public GameObject WaterObject;
+    public Texture2D[] Textures;
 
 	// Use this for initialization
 	void Start()
@@ -61,7 +62,27 @@ public class TerrainGeneratorScript : MonoBehaviour
 		terrainData.SetDetailResolution(1024, 8);
 		terrainData.SetHeights(0, 0, map.Heights);
 		terrainData.name = "Generated Terrain Data";
-		yield return null;
+        yield return null;
+        
+        if (map.Biome.Textures != null)
+        {
+            SplatPrototype[] prototypes = new SplatPrototype[map.Biome.Textures.Length];
+            
+            for (int i = 0; i < map.Biome.Textures.Length; i++)
+            {
+                Texture2D texture = Textures.FirstOrDefault(tex => tex != null && tex.name == map.Biome.Textures[i].Source);
+
+                if (texture == null)
+                    throw new Exception("Texture " + map.Biome.Textures[i].Source + " not found!");
+
+                prototypes[i] = new SplatPrototype();
+                prototypes[i].texture = texture;
+            }
+
+            terrainData.splatPrototypes = prototypes;
+
+            yield return null;
+        }
 
 		// Create terrain object
 		GameObject terrain = Terrain.CreateTerrainGameObject(terrainData);
@@ -78,11 +99,71 @@ public class TerrainGeneratorScript : MonoBehaviour
 			MeshFilter waterMesh = WaterObject.GetComponent<MeshFilter>();
 			waterMesh.mesh = GenerateWater();
 		}
+        yield return null;
 
 		// Set up textures
-
+        SetupSplatmaps(terrainData);
 	}
 
+    private void SetupSplatmaps(TerrainData terrainData)
+    {
+        float[, ,] splatData = new float[terrainData.alphamapWidth, terrainData.alphamapHeight, terrainData.alphamapLayers];
+        Expression[] expressions = new Expression[terrainData.alphamapLayers];
+
+        for (int y = 0; y < terrainData.alphamapHeight; y++)
+            for (int x = 0; x < terrainData.alphamapWidth; x++)
+            {
+                float y_01 = (float)y / (float)terrainData.alphamapHeight;
+                float x_01 = (float)x / (float)terrainData.alphamapWidth;
+
+                int ix = Mathf.RoundToInt(x_01 * TerrainWidth);
+                int iy = Mathf.RoundToInt(y_01 * TerrainHeight);
+
+                // Get height
+                float height = map.Heights[ix, iy] * terrainData.size.y;
+                
+                // Get steepness
+                int safex = (ix == 0) ? 1 : ix;
+                int safey = (iy == 0) ? 1 : iy;
+
+                float dx = map.Heights[safex - 1, safey] * map.Biome.Height - height;
+                float dy = map.Heights[safex, safey - 1] * map.Biome.Height - height;
+                float steepness = dx * dx + dy * dy;
+                
+
+                float[] weights = new float[terrainData.alphamapLayers];
+                float sum = 0;
+
+                // Go through each texture layer
+                for (int t = 0; t < terrainData.alphamapLayers; t++)
+                {
+                    // Set up expression
+                    if (expressions[t] == null)
+                    {
+                        expressions[t] = new Expression(map.Biome.Textures[t].Expression);
+                        expressions[t].ParseExpression();
+                    }
+
+                    expressions[t].Variables["height"] = height;
+                    expressions[t].Variables["steepness"] = steepness;
+                    expressions[t].Variables["maxHeight"] = terrainData.size.y;
+                    expressions[t].Variables["waterLevel"] = map.WaterLevel - 1f;
+
+                    // Obtain weight
+                    weights[t] = expressions[t].Evaluate();
+                    sum += weights[t];
+                }
+
+                // Normalize and copy weights
+                for (int t = 0; t < terrainData.alphamapLayers; t++)
+                {
+                    splatData[x, y, t] = weights[t] / sum;
+                }
+            }
+
+        terrainData.SetAlphamaps(0, 0, splatData);
+    }
+
 	// Update is called once per frame
 	void Update()
 	{

Game/Assets/Scripts/Unity/TerrainGeneratorScript.cs.meta

@@ -0,0 +1,12 @@
+fileFormatVersion: 2
+guid: face2544c49ac4a4b8871b8952f2427a
+timeCreated: 1431068977
+licenseType: Free
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+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
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