Updated plant behavior

V1- Don't like how the variables are interacting. Will be rewriting plant behavior.

.gitignore

@@ -16,6 +16,9 @@
 *.blend1
 *.blend1.meta
 
+# Imported assets 
+.Assets/Samples/
+
 # MemoryCaptures can get excessive in size.
 # They also could contain extremely sensitive data
 /[Mm]emoryCaptures/
@@ -97,3 +100,8 @@ InitTestScene*.unity*
 
 # Auto-generated scenes by play mode tests
 /[Aa]ssets/[Ii]nit[Tt]est[Ss]cene*.unity*
+Assets/Samples/
+Assets/TextMesh Pro/
+*.meta
+Assets/GameAssets/Materials/TerrainMaterial.mat
+Assets/GameAssets/Materials/MaybePlants.shadergraph

Assets/GameAssets/Scripts/Core.cs

@@ -6,6 +6,9 @@ public class Core : MonoBehaviour
     [SerializeField] public NutrientController nutrientCont;
     [SerializeField] public PlantController plantCont;
     [SerializeField] public Terrain ground;
+    [SerializeField, Range(0, 10)] public float speedOfStep;
+
+    float timeSoFar;
 
     public static Core instance;
 
@@ -16,13 +19,19 @@ public class Core : MonoBehaviour
 
     // Start is called once before the first execution of Update after the MonoBehaviour is created
     void Start()
-    {   
+    {
-
+        timeSoFar = 0; 
     }
 
     // Update is called once per frame
     void Update()
     {
-        
+        timeSoFar += Time.deltaTime; 
+        if(timeSoFar >= speedOfStep)
+        {
+            plantCont.Step(timeSoFar);
+            nutrientCont.Step(timeSoFar);
+            timeSoFar = 0;
+        }
     }
 }

Assets/GameAssets/Scripts/NutrientController.cs

@@ -30,7 +30,21 @@ public class NutrientController : MonoBehaviour
         
     }
 
-    public bool PlantNutrientUse(float x, float y, float radius, float nutrientsNeeded)
+    public void Step(float dTime)
+    {
+        for (int r = 0; r < sizeX; r++)
+        {
+            for (int c = 0; c < sizeY; c++)
+            {
+                if (nutrientMap[r,c] < 1)
+                {
+                    nutrientMap[r, c] += (0.1f * dTime);
+                }
+            }
+        }
+    }
+
+    public float PlantNutrientUse(float x, float y, float radius, float nutrientsNeeded)
     {
         int locX = Mathf.FloorToInt(x * sizeX);
         int locY = Mathf.FloorToInt(y * sizeY);
@@ -38,84 +52,113 @@ public class NutrientController : MonoBehaviour
         int flooredRadius = Mathf.FloorToInt(radius);
         float totalNutrients = nutrientMap[locX, locY];
 
-        float[,] nutrientsAvailable = new float[flooredRadius * 2 + 1, flooredRadius * 2 + 1];
+        float[,] nutrientsAvailable;
 
+        try
+        {
+            nutrientsAvailable = new float[flooredRadius * 2 + 1, flooredRadius * 2 + 1];
+        } catch (Exception e)
+        {
+            Debug.Log($"x : {x} y : {y} radius : {radius} nutrients needed : {nutrientsNeeded}");
+            return 2000000;
+        }
+
+        // Calculate total amount of nutrients available to the plant, at a 1/ (2 * steps from origin) ratio. 
         for (int r = -flooredRadius; r <= flooredRadius; r++)
         {
             int currentLocX = locX + r; 
 
             for(int c = -flooredRadius; c <= flooredRadius; c++)
             {
-                int currentLocY = locY + c; 
+                int currentLocY = locY + c;
-
+                if (currentLocX < 0 || currentLocX >= nutrientMap.GetLength(0) || currentLocY < 0 || currentLocY >= nutrientMap.GetLength(1))
-                if(r == 0 && c == 0)
                 {
-                    nutrientsAvailable[flooredRadius, flooredRadius] = nutrientMap[currentLocX, currentLocY];
+                    nutrientsAvailable[flooredRadius, flooredRadius] = 0;
                 }
                 else
                 {
-                    nutrientsAvailable[flooredRadius + r, flooredRadius + c] = nutrientMap[currentLocX, currentLocY] / ((Mathf.Abs(r) + Mathf.Abs(c)) * 2);
+                    if (r == 0 && c == 0)
-                    totalNutrients += nutrientMap[currentLocX, currentLocY] / ((Mathf.Abs(r) + Mathf.Abs(c)) * 2);
+                    {
+                        nutrientsAvailable[flooredRadius, flooredRadius] = nutrientMap[currentLocX, currentLocY];
+                    }
+                    else
+                    {
+                        nutrientsAvailable[flooredRadius + r, flooredRadius + c] = nutrientMap[currentLocX, currentLocY] / ((Mathf.Abs(r) + Mathf.Abs(c)) * 2);
+                        totalNutrients += nutrientMap[currentLocX, currentLocY] / ((Mathf.Abs(r) + Mathf.Abs(c)) * 2);
+                    }
                 }
             }
         }
 
+        // If not enough nutrients are available to the plant to sustain it, return false. 
+        // Can be changed to returning a float value indicating the deficit in nutrients with the plant taking that much in health damage 
         if (totalNutrients < nutrientsNeeded)
         {
-            return false; 
+            for (int r = -flooredRadius; r <= flooredRadius; r++)
+            {
+                int currentLocX = locX + r;
+
+                for (int c = -flooredRadius; c <= flooredRadius; c++)
+                {
+                    int currentLocY = locY + c;
+                    if (currentLocX >= 0 && currentLocX < nutrientMap.GetLength(0) && currentLocY >= 0 && currentLocY < nutrientMap.GetLength(1))
+                    {
+                        nutrientMap[currentLocX, currentLocY] -= (nutrientsAvailable[flooredRadius + r, flooredRadius + c]);
+                    }
+                }
+            }
+            return nutrientsNeeded - totalNutrients;
         }
 
-        float[,] amountToUse = new float[flooredRadius * 2 + 1, flooredRadius * 2 + 1];
+        for (int r = -flooredRadius; r <= flooredRadius; r++)
-
-        for(int r = 0; r < nutrientsAvailable.GetLength(0); r++)
         {
-            for (int c = 0; c < nutrientsAvailable.GetLength(1); c++)
+            int currentLocX = locX + r;
+
+            for (int c = -flooredRadius; c <= flooredRadius; c++)
             {
-                amountToUse[r, c] = (nutrientsAvailable[r, c] / totalNutrients) * nutrientsNeeded;
+                int currentLocY = locY + c;
+                if (currentLocX >= 0 && currentLocX < nutrientMap.GetLength(0) && currentLocY >= 0 && currentLocY < nutrientMap.GetLength(1))
+                {
+                    nutrientMap[currentLocX, currentLocY] -= (nutrientsAvailable[flooredRadius + r, flooredRadius + c] / totalNutrients) * nutrientsNeeded;
+                }
             }
         }
-
+        return 0; 
-        string output2 = "NUTRIENTS TO USE\n";
-        for (int r = 0; r < amountToUse.GetLength(0); r++)
-        {
-            for (int c = 0; c < amountToUse.GetLength(1); c++)
-            {
-                output2 += amountToUse[r, c] + " ";
-            }
-            output2 += "\n";
-        }
-        Debug.Log(output2);
-
-        return true; 
     }
 
-    public float GetNutrients(float x, float y, float radius)
+    public float GetAvailNutrients(float x, float y, float radius)
     {
         int locX = Mathf.FloorToInt(x * sizeX);
         int locY = Mathf.FloorToInt(y * sizeY);
 
-        int ceilRad = Mathf.CeilToInt(radius);
+        int flooredRadius = Mathf.FloorToInt(radius);
-        float totalNutrients = 0; 
+        float totalNutrients = nutrientMap[locX, locY];
 
-        for(int r = -ceilRad; r < ceilRad; r++)
+        // Calculate total amount of nutrients available to the plant, at a 1/ (2 * steps from origin) ratio. 
+        for (int r = -flooredRadius; r <= flooredRadius; r++)
         {
-            for (int c = -ceilRad; c < ceilRad; c++)
+            int currentLocX = locX + r;
+
+            for (int c = -flooredRadius; c <= flooredRadius; c++)
             {
-                if((locX + ceilRad > 0 && locX + ceilRad < sizeX) && (locY + ceilRad > 0 && locY + ceilRad < sizeY))
+                int currentLocY = locY + c;
+                if (currentLocX < 0 || currentLocX >= nutrientMap.GetLength(0) || currentLocY < 0 || currentLocY >= nutrientMap.GetLength(1))
                 {
-                    int fraction = Mathf.Abs(r) + Mathf.Abs(c);
+
-                    if(fraction == 0)
+                }
+                else
+                {
+                    if (r == 0 && c == 0)
                     {
-                        totalNutrients += nutrientMap[locX + ceilRad, locY + ceilRad];
+                        
                     }
                     else
                     {
-                        totalNutrients += nutrientMap[locX + ceilRad, locY + ceilRad] / (fraction * 2);
+                        totalNutrients += nutrientMap[currentLocX, currentLocY] / ((Mathf.Abs(r) + Mathf.Abs(c)) * 2);
                     }
                 }
             }
         }
-
         return totalNutrients;
     }
 
@@ -127,12 +170,60 @@ public class NutrientController : MonoBehaviour
         nutrientMap[locX, locY] -= used;
     }
 
-    public void AddNutrients(float x, float y, float added)
+    public void AddNutrients(float x, float y, float added, float radius)
     {
         int locX = Mathf.FloorToInt(x * sizeX);
         int locY = Mathf.FloorToInt(y * sizeY);
 
-        nutrientMap[locX, locY] += added;
+        int flooredRadius = Mathf.FloorToInt(radius);
+        float totalDistro = 0; 
+
+        for (int r = -flooredRadius; r <= flooredRadius; r++)
+        {
+            int currentLocX = locX + r;
+
+            for (int c = -flooredRadius; c <= flooredRadius; c++)
+            {
+                int currentLocY = locY + c;
+                if (currentLocX >= 0 && currentLocX < nutrientMap.GetLength(0) && currentLocY >= 0 && currentLocY < nutrientMap.GetLength(1))
+                {
+                    if (r == 0 && c == 0)
+                    {
+                        totalDistro += 1;
+                    }
+                    else
+                    {
+                        totalDistro += 1.0f / ((Mathf.Abs(r) + Mathf.Abs(c)) * 2);
+                    }
+                }
+            }
+        }
+
+        for (int r = -flooredRadius; r <= flooredRadius; r++)
+        {
+            int currentLocX = locX + r;
+
+            for (int c = -flooredRadius; c <= flooredRadius; c++)
+            {
+                int currentLocY = locY + c;
+                if (currentLocX >= 0 && currentLocX < nutrientMap.GetLength(0) && currentLocY >= 0 && currentLocY < nutrientMap.GetLength(1))
+                {
+                    if(r == 0 && c == 0)
+                    {
+                        nutrientMap[currentLocX, currentLocY] += (added / totalDistro);
+                    }
+                    else
+                    {
+                        nutrientMap[currentLocX, currentLocY] += (added / totalDistro) / ((Mathf.Abs(r) + Mathf.Abs(c)) * 2);
+                    }
+
+                    if(nutrientMap[currentLocX, currentLocY] > 1)
+                    {
+                        nutrientMap[currentLocX, currentLocY] = 1;
+                    }
+                }
+            }
+        }
     }
 
     private void Render()

Assets/GameAssets/Scripts/Plant.cs

@@ -1,18 +1,29 @@
+using UnityEditor;
 using UnityEngine;
-using System.Collections.Generic;
 
 public class Plant : MonoBehaviour
 {
-    private float healthMax;
+    public float healthMax;
-    private float healthCurrent;
+    public float healthCurrent;
-    private float nutrientNeed;
+    public float nutrientNeed;
-    private float growthRate;
+    public float growthRate;
-    private float nutrientsConsumed;
+    public float nutrientsConsumed;
+    public float nutrientsRequiredStep;
+    public float size; 
+    
+    public float reproductionChance;
+    public float reproductionDist;
+    public bool isReproducing; 
+    public float childXPos;
+    public float childYPos; 
+
     public bool isAlive;
 
-    private GameObject visualPrefab;
+    public GameObject visualPrefab;
     public GameObject visual;
 
+    public float availNutrients; 
+
     public void SetVisual(GameObject visualPrefab)
     {
         this.visualPrefab = visualPrefab;
@@ -23,6 +34,8 @@ public class Plant : MonoBehaviour
         this.healthMax = healthMax;
         this.nutrientNeed = nutrientNeed;
         this.growthRate = growthRate;
+        reproductionChance = 1;
+        reproductionDist = Random.Range(1f, 500f);
     }
 
     // Start is called once before the first execution of Update after the MonoBehaviour is created
@@ -32,41 +45,95 @@ public class Plant : MonoBehaviour
         healthCurrent = healthMax;
         nutrientsConsumed = 0; 
         isAlive = true;
+        isReproducing = false;
+        size = 1f;
     }
 
     // Update is called once per frame
     void Update()
+    {
+        
+    }
+
+    public void Step(float dTime)
     {
         Terrain terrain = Core.instance.ground;
-        NutrientController nutrientCont = Core.instance.nutrientCont; 
+        NutrientController nutrientCont = Core.instance.nutrientCont;
+        float xBound = terrain.terrainData.size.x;
+        float yBound = terrain.terrainData.size.z;
+        float x = transform.position.x / xBound;
+        float y = transform.position.z / yBound;
 
-        float x = transform.position.x / terrain.terrainData.size.x;
+        //availNutrients = nutrientCont.GetAvailNutrients(x, y, size);
-        float y = transform.position.z / terrain.terrainData.size.z;
-        float size = visual.transform.localScale.x;
 
-        //float nutrientsAvailable = nutrientCont.GetNutrients(x, y, size);
+        nutrientsRequiredStep = Mathf.Pow(size, 2f) * nutrientNeed * dTime;
 
-        //float nutrientsNeededFrame = (nutrientNeed * Time.deltaTime);
+        float nutrientDeficit = nutrientCont.PlantNutrientUse(x, y, size, nutrientsRequiredStep);
 
-        float nutrientsNeededFrame = (nutrientNeed);
+        if (nutrientDeficit > 0)
-
-        bool CanStayAlive = nutrientCont.PlantNutrientUse(x, y, size, nutrientsNeededFrame);
-
-        /*if (nutrientsNeededFrame > nutrientsAvailable)
         {
-            healthCurrent -= Time.deltaTime * 0.1f * healthMax;
+            healthCurrent -= nutrientDeficit;
+            nutrientsConsumed += (nutrientsRequiredStep - nutrientDeficit);
         }
         else
         {
-            visual.transform.localScale += visual.transform.localScale * (growthRate * Time.deltaTime);
+            float adjustedGrowth = (growthRate * 1.5f) / size; 
-            nutrientCont.UseNutrients(x, y, size, nutrientsNeededFrame);
+            size += adjustedGrowth * dTime;
-            nutrientsConsumed += nutrientsNeededFrame;
+            if(visual != null)
+            {
+                visual.transform.localScale = new Vector3(size, size, size);
+            }
+            nutrientsConsumed += nutrientsRequiredStep;
         }
 
         if (healthCurrent <= 0)
         {
-            nutrientCont.AddNutrients(x, y, (nutrientsConsumed * 0.9f));
+            nutrientCont.AddNutrients(x, y, (nutrientsConsumed * 0.9f), size);
             isAlive = false;
-        }*/
+        }
+
+        float reproRoll = Random.Range(0.0f, 1f);
+        if(reproRoll > 1 - (reproductionChance * dTime))
+        {
+            float direction;
+            float xOffset;
+            float yOffset;
+            int counter = 0; 
+            do
+            {
+                direction = Random.Range(0f, 360f);
+                xOffset = (reproductionDist + Random.Range(-0.1f * reproductionDist, 0.1f * reproductionDist)) * Mathf.Cos(direction * Mathf.Deg2Rad);
+                yOffset = (reproductionDist + Random.Range(-0.1f * reproductionDist, 0.1f * reproductionDist)) * Mathf.Sin(direction * Mathf.Deg2Rad);
+
+                childXPos = transform.position.x + xOffset;
+                childYPos = transform.position.y + yOffset;
+                counter++; 
+                if(counter >= 50)
+                {
+                    return;
+                }
+            } while (childXPos > xBound || childXPos < 0 || childYPos > yBound || childYPos < 0);
+            isReproducing = true;
+        }
+    }
+
+    public void childMade()
+    {
+        childXPos = 0;
+        childYPos = 0;
+        isReproducing = false;
+    }
+
+    private void OnDrawGizmos()
+    {
+        Vector3 camPos = SceneView.currentDrawingSceneView.camera.transform.position;
+        if(Vector3.Distance(camPos, this.transform.position) > 15 * visual.transform.localScale.x)
+        {
+            return;
+        }
+        GUIStyle big = new GUIStyle();
+        big.fontSize = 50;
+        big.normal.textColor = Color.purple;
+        Handles.Label(transform.position, $"Health: {healthCurrent}\nSize: {size}\nnRequired: {nutrientsRequiredStep}", big);
     }
 }

Assets/GameAssets/Scripts/PlantController.cs

@@ -9,20 +9,21 @@ public class PlantController : MonoBehaviour
     List<GameObject> plants;
     float xBound;
     float zBound;
+    Terrain terrain;
 
     // Start is called once before the first execution of Update after the MonoBehaviour is created
     void Start()
     {
         plants = new List<GameObject>();
-        Terrain terrain = Core.instance.ground;
+        terrain = Core.instance.ground;
         xBound = terrain.GetComponent<Terrain>().terrainData.size.x;
         zBound = terrain.GetComponent<Terrain>().terrainData.size.z;
 
-        for (int i = 0; i < 1; i++)
+        for (int i = 0; i < 100; i++)
         {
             GameObject newPlant = Instantiate(plantPrefab);
             newPlant.GetComponent<Plant>().SetVisual(plantModels[Random.Range(0, plantModels.Count - 1)]);
-            newPlant.GetComponent<Plant>().SetValues(Random.Range(10f, 100f), Random.Range(0.1f, 0.2f), Random.Range(0.1f, 0.25f));
+            newPlant.GetComponent<Plant>().SetValues(Random.Range(10f, 100f), Random.Range(0.5f, 1f), Random.Range(0.1f, 0.25f));
             float x = Random.Range(0, xBound);
             float z = Random.Range(0, zBound);
             float y = terrain.SampleHeight(new Vector3(x, 0, z));
@@ -42,13 +43,46 @@ public class PlantController : MonoBehaviour
         {
             GameObject currentPlant = plants[i];
             Plant plantI = currentPlant.GetComponent<Plant>();
-            if(!plantI.isAlive)
+            if (!plantI.isAlive)
             {
                 currentPlant.SetActive(false);
                 plants.Remove(currentPlant);
                 Destroy(currentPlant);
                 i--;
             }
+            else
+            {
+                if (plantI.isReproducing)
+                {
+                    GameObject child = Instantiate(plantPrefab);
+                    Plant childPlant = child.GetComponent<Plant>();
+                    childPlant.SetVisual(plantI.visualPrefab);
+                    childPlant.SetValues(plantI.healthMax + Random.Range(-0.5f, 0.5f), plantI.nutrientNeed + Random.Range(-0.01f, 0.01f), plantI.growthRate + Random.Range(-0.01f, 0.01f));
+
+                    float x = plantI.childXPos;
+                    float z = plantI.childYPos;
+                    float y = terrain.SampleHeight(new Vector3(plantI.childXPos, 0, plantI.childYPos));
+                    Vector3 childPos = new Vector3(x, y, z);
+
+                    Vector3 normal = terrain.terrainData.GetInterpolatedNormal(plantI.childXPos / xBound, plantI.childYPos / zBound);
+                    child.transform.LookAt(normal);
+                    child.transform.Rotate(new Vector3(90, 0, 0));
+
+                    child.transform.position = childPos;
+                    plants.Add(child);
+                    i++;
+
+                    plantI.childMade();
+                }
+            }
+        }
+    }
+
+    public void Step(float dTime)
+    {
+        foreach(GameObject plant in plants)
+        {
+            plant.GetComponent<Plant>().Step(dTime);
         }
     }
 }

Assets/Scenes/SampleScene.unity

@@ -183,6 +183,7 @@ MonoBehaviour:
   nutrientCont: {fileID: 23266656}
   plantCont: {fileID: 23266655}
   ground: {fileID: 237381106}
+  speedOfStep: 3.84
 --- !u!4 &23266658
 Transform:
   m_ObjectHideFlags: 0
@@ -192,7 +193,7 @@ Transform:
   m_GameObject: {fileID: 23266654}
   serializedVersion: 2
   m_LocalRotation: {x: 0, y: 0, z: 0, w: 1}
-  m_LocalPosition: {x: 429.55267, y: 0, z: 320.2245}
+  m_LocalPosition: {x: 0, y: 0, z: 0}
   m_LocalScale: {x: 1, y: 1, z: 1}
   m_ConstrainProportionsScale: 0
   m_Children: []