finsihed tech tree and started working on new resource manager, working on per day resources

Assembly-CSharp.csproj

@@ -59,6 +59,7 @@
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     <Compile Include="Assets\GUIPackCartoon\Demo\Scripts\AnimatedButton.cs" />
     <Compile Include="Assets\Scripts\TechTreeUI.cs" />
+    <Compile Include="Assets\Scripts\TechTooltip.cs" />
     <Compile Include="Assets\GUIPackCartoon\Demo\Scripts\PopupOpener.cs" />
     <Compile Include="Assets\Scripts\Objectives.cs" />
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     <Compile Include="Assets\GUIPackCartoon\Demo\Scripts\ColorSwapper.cs" />
     <Compile Include="Assets\Scripts\City.cs" />
+    <Compile Include="Assets\Scripts\BuildingButtonHandler.cs" />
     <Compile Include="Assets\Scripts\CitizenAI.cs" />
     <Compile Include="Assets\TutorialInfo\Scripts\Readme.cs" />
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     <Compile Include="Assets\GUIPackCartoon\Demo\Scripts\SpinWheel.cs" />
     <Compile Include="Assets\GUIPackCartoon\Demo\Scripts\Popup.cs" />
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     <Compile Include="Assets\GUIPackCartoon\Demo\Scripts\PlayPopupOpener.cs" />
     <Compile Include="Assets\GUIPackCartoon\Demo\Scripts\SpriteSwapper.cs" />
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     <Compile Include="Assets\GUIPackCartoon\Demo\Scripts\TintedButton.cs" />
     <Compile Include="Assets\GUIPackCartoon\Demo\Scripts\SceneTransition.cs" />
+    <Compile Include="Assets\Scripts\TechNodeConnector.cs" />
     <Compile Include="Assets\GUIPackCartoon\Demo\Scripts\SoundButton.cs" />
     <Compile Include="Assets\Scripts\CameraController.cs" />
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+  m_VertexBufferAutoSizeReduction: 0
+  m_useMaxVisibleDescender: 1
+  m_pageToDisplay: 1
+  m_margin: {x: 5, y: 5, z: 5, w: 5}
+  m_isUsingLegacyAnimationComponent: 0
+  m_isVolumetricText: 0
+  m_hasFontAssetChanged: 0
+  m_baseMaterial: {fileID: 0}
+  m_maskOffset: {x: 0, y: 0, z: 0, w: 0}

Assets/Prefabs/TechTree/Tooltip.prefab.meta

@@ -0,0 +1,7 @@
+fileFormatVersion: 2
+guid: 00310908120d55e4b9ef51caf951c0a2
+PrefabImporter:
+  externalObjects: {}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Assets/Scripts/BuildingButtonHandler.cs.meta

@@ -0,0 +1,2 @@
+fileFormatVersion: 2
+guid: cf3a5be4b2662c74c85b8a51d513a9ff

Assets/Scripts/BuildingPlacement.cs

@@ -99,7 +99,7 @@ public class BuildingPlacement : MonoBehaviour
         }
         rightClickMenu.SetActive(true); // Hide the right-click menu if it was open
         // Check if the player has enough money
-        if (City.Instance.money < preset.cost)
+        if (ResourceManager.Instance.GetResourceAmount(ResourceManager.ResourceTypes.Money).resourceAmount < preset.cost)
         {
             return;
         }
@@ -147,20 +147,20 @@ public class BuildingPlacement : MonoBehaviour
     //places down the currently selected building
     void PlaceBuilding()
     {
-        //check if the player is trying to place a building on top of another building
+        // Check if the player is trying to place a building on top of another building
         if (City.Instance.buildings.Exists(x => x.transform.position == curIndicatorPos))
         {
             Debug.Log("Cannot place building on top of another building!");
             return;
         }
+        // Check if the player has enough money before placing
+        if (ResourceManager.Instance.GetResourceAmount(ResourceManager.ResourceTypes.Money).resourceAmount < curBuildingPreset.cost)
+        {
+            Debug.Log("Not enough money to place this building!");
+            return;
+        }
         GameObject buildingObj = Instantiate(curBuildingPreset.prefab, curIndicatorPos, curIndicatorRotation);
         City.Instance.OnPlaceBuilding(buildingObj.GetComponent<Building>());
-        /*if (placementPrefab != null)
-        {
-            Destroy(placementPrefab);
-            placementPrefab = null;
-        }*/
-        //currentlyPlacing = false;
     }
 
     //deletes the currently selected building

Assets/Scripts/BuildingPreset.cs

@@ -10,6 +10,11 @@ public class BuildingPreset : ScriptableObject
     public int population;
     public int jobs;
     public int food;
+    public int water;
+    public int steel;
+    public int faith;
+    public int wood;
+
     public enum BuildingType
     {
         Residential,
@@ -19,7 +24,15 @@ public class BuildingPreset : ScriptableObject
         School,
         Hospital,
         PoliceStation,
-        FireStation
+        FireStation,
+        Church,
+        Road,
+        PowerPlant,
+        WaterPlant,
+        Factory,
+        Farm,
+        Mine,
+        Sawmill
     }
     public BuildingType buildingType;
 }

Assets/Scripts/City.cs

@@ -35,19 +35,16 @@ public class City : MonoBehaviour
     [SerializeField]
     private Light sunlight; // Reference to the sunlight light source
     [SerializeField] private GameObject sunTarget; // Reference to the sun target object for rotation
-    public int money;
+    // Removed legacy fields: maxPopulation, maxJobs, incomePerJob, faithPerChurch
-    //public int day;
-    public int curPopulation;
-    public int curJobs;
-    public int curFood;
-    public int maxPopulation;
-    public int maxJobs;
-    public int incomePerJob;
     public TextMeshProUGUI moneyTxt;
     public TextMeshProUGUI dayText;
     public TextMeshProUGUI populationTxt;
     public TextMeshProUGUI jobsTxt;
     public TextMeshProUGUI foodTxt;
+    public TextMeshProUGUI woodTxt;
+    public TextMeshProUGUI steelTxt;
+    public TextMeshProUGUI faithTxt;
+    public TextMeshProUGUI waterTxt;
     public List<Building> buildings = new List<Building>();
     // Start is called once before the first execution of Update after the MonoBehaviour is created
     void Start()
@@ -73,46 +70,75 @@ public class City : MonoBehaviour
     //called when placing a building
     public void OnPlaceBuilding(Building building)
     {
-        //apply the building preset stats
+        // Apply the building preset stats
-        money -= building.preset.cost;
-        maxPopulation += building.preset.population;
-        maxJobs += building.preset.jobs;
-        //add the building to the list of buildings
         buildings.Add(building);
-        //update the stats text
+        var preset = building.preset;
+        // Loop through all resource types and add if value is not zero
+        foreach (ResourceManager.ResourceTypes type in Enum.GetValues(typeof(ResourceManager.ResourceTypes)))
+        {
+            int value = GetResourceValueFromPreset(preset, type);
+            if (value != 0)
+            {
+                ResourceManager.Instance.AddResource(type, value);
+            }
+        }
         UpdateStats();
     }
+
+    // Helper method to get the value for a resource type from the preset
+    private int GetResourceValueFromPreset(BuildingPreset preset, ResourceManager.ResourceTypes type)
+    {
+        switch (type)
+        {
+            case ResourceManager.ResourceTypes.Population: return preset.population;
+            case ResourceManager.ResourceTypes.Jobs: return preset.jobs;
+            case ResourceManager.ResourceTypes.Faith: return preset.faith;
+            case ResourceManager.ResourceTypes.Food: return preset.food;
+            case ResourceManager.ResourceTypes.Wood: return preset.wood;
+            case ResourceManager.ResourceTypes.Steel: return preset.steel;
+            case ResourceManager.ResourceTypes.Water: return preset.water;
+            case ResourceManager.ResourceTypes.Money: return preset.cost;
+            // Add more as needed
+            default: return 0;
+        }
+    }
     //called when bulldozing a building
     public void OnRemoveBuilding(Building building)
     {
-        //apply the building preset stats
+        // Subtract the building preset stats from resources
-        maxPopulation -= building.preset.population;
+        var preset = building.preset;
-        maxJobs -= building.preset.jobs;
+        foreach (ResourceManager.ResourceTypes type in Enum.GetValues(typeof(ResourceManager.ResourceTypes)))
-        //remove the building from the list of buildings
+        {
+            int value = GetResourceValueFromPreset(preset, type);
+            if (value != 0)
+            {
+                ResourceManager.Instance.AddResource(type, -value);
+            }
+        }
+        // Remove the building from the list and destroy it
         buildings.Remove(building);
-        //destroy the building game object
         Destroy(building.gameObject);
-        //update the stats text
         UpdateStats();
     }
 
     //update the stats text
     void UpdateStats()
     {
-        moneyTxt.text = "$" + money;
+        moneyTxt.text = "$" + ResourceManager.Instance.GetResourceAmount(ResourceManager.ResourceTypes.Money).resourceAmount;
-        populationTxt.text = curPopulation + " / " + maxPopulation;
+        populationTxt.text = ResourceManager.Instance.GetResourceAmount(ResourceManager.ResourceTypes.Population).resourceAmount.ToString();
-        jobsTxt.text = curJobs + " / " + maxJobs;
+        jobsTxt.text = ResourceManager.Instance.GetResourceAmount(ResourceManager.ResourceTypes.Jobs).resourceAmount.ToString();
-        foodTxt.text = curFood.ToString();
+        foodTxt.text = ResourceManager.Instance.GetResourceAmount(ResourceManager.ResourceTypes.Food).resourceAmount.ToString();
+        woodTxt.text = ResourceManager.Instance.GetResourceAmount(ResourceManager.ResourceTypes.Wood).resourceAmount.ToString();
+        steelTxt.text = ResourceManager.Instance.GetResourceAmount(ResourceManager.ResourceTypes.Steel).resourceAmount.ToString();
+        faithTxt.text = ResourceManager.Instance.GetResourceAmount(ResourceManager.ResourceTypes.Faith).resourceAmount.ToString();
+        waterTxt.text = ResourceManager.Instance.GetResourceAmount(ResourceManager.ResourceTypes.Water).resourceAmount.ToString();
     }
 
     //called when clicking "End Turn" button
     public void EndDay()
     {
-        //calculate the updated stats
+        // Apply all per-day resource changes using ResourceManager
-        CalculateMoney();
+        ResourceManager.Instance.ApplyDailyResourceChanges();
-        CalculatePopulation();
-        CalculateJobs();
-        CalculateFood();
         UpdateStats();
         UpdateWeekDay(); // Update the current day of the week
     }
@@ -131,38 +157,6 @@ public class City : MonoBehaviour
         }
     }
 
-    void CalculateMoney()
-    {
-        money += curJobs * incomePerJob;
-        foreach (Building building in buildings)
-        {
-            money -= building.preset.costPerTurn;
-        }
-    }
-    void CalculatePopulation()
-    {
-        if (curFood >= curPopulation && curPopulation < maxPopulation)
-        {
-            curFood -= curPopulation / 4;
-            curPopulation = Mathf.Min(curPopulation + (curFood / 4), maxPopulation);
-        }
-        else if (curFood < curPopulation)
-        {
-            curPopulation = curFood;
-        }
-    }
-    void CalculateJobs()
-    {
-        curJobs = Mathf.Min(curPopulation, maxJobs);
-    }
-    void CalculateFood()
-    {
-        curFood = 0;
-        foreach (Building building in buildings)
-        {
-            curFood += building.preset.food;
-        }
-    }
     private float UpdateCurrentTime()
     {
         // Always use the current timeMultiplier based on timeSpeedUp
@@ -202,9 +196,6 @@ public class City : MonoBehaviour
                 float t = (curTime - sunriseTime) / (noonTime - sunriseTime);
                 intensity = Mathf.Lerp(minIntensity, maxIntensity, t);
                 sunPosition = Vector3.Lerp(sunriseTarget.transform.position, noonTarget.transform.position, t);
-                #if UNITY_EDITOR
-                Debug.Log($"Sunrise period - Time: {curTime:F0}, Intensity: {intensity:F2}");
-                #endif
             }
             else
             {
@@ -212,9 +203,6 @@ public class City : MonoBehaviour
                 float t = (curTime - noonTime) / (sunsetTime - noonTime);
                 intensity = Mathf.Lerp(maxIntensity, minIntensity, t);
                 sunPosition = Vector3.Lerp(noonTarget.transform.position, sunsetTarget.transform.position, t);
-                #if UNITY_EDITOR
-                Debug.Log($"Sunset period - Time: {curTime:F0}, Intensity: {intensity:F2}");
-                #endif
             }
         }
         else
@@ -223,9 +211,6 @@ public class City : MonoBehaviour
             intensity = minIntensity;
             // During night, keep the sun at sunset position (sun is "below horizon")
             sunPosition = sunsetTarget.transform.position;
-            #if UNITY_EDITOR
-            Debug.Log($"Night cycle active - Time: {curTime:F0}, Intensity: {intensity:F2}");
-            #endif
         }
 
         // Move the sun target and apply light intensity

Assets/Scripts/PanelToggle.cs

@@ -1,24 +1,20 @@
+ using System.Collections;
+ using System.Collections.Generic;
  using UnityEngine;
-
  public class PanelToggle : MonoBehaviour
  {
-    void Awake()
-    {
-        // there is only 1 child so this is a quick way to get a reference
-        panelToToggle = transform.GetChild(0).gameObject;
-        currentToggle = panelToToggle.activeSelf; // sync var to panels state
-    }
     [SerializeField]
     private GameObject panelToToggle;
     [SerializeField]
+    private bool currentToggle;
+    [SerializeField]
     private KeyCode keyToToggle;
-    private bool currentToggle;  // true if panel on
+    // Start is called before the first frame update
-    // Start is called once before the first execution of Update after the MonoBehaviour is created
+    void Awake()
-    void Start()
     {
-
+        panelToToggle = transform.GetChild(0).gameObject;
+        currentToggle = panelToToggle.activeSelf;
     }
-
     // Update is called once per frame
     void Update()
     {

Assets/Scripts/ResourceManager.cs

@@ -0,0 +1,85 @@
+using System.Collections.Generic;
+using UnityEngine;
+
+public class ResourceManager : MonoBehaviour
+{
+    public enum ResourceTypes { Steel, Wood, Water, Population, Food, Faith, Money, Jobs, maxPopulation, faithPerDay, moneyPerDay, woodPerDay, steelPerDay, waterPerDay, foodPerDay, populationPerDay }
+    public List<ResourceAmount> resourceAmounts;
+    public static ResourceManager Instance { get; private set; }
+
+    private void Awake()
+    {
+        if (Instance != null && Instance != this)
+        {
+            Destroy(this.gameObject);
+        }
+        else
+        {
+            Instance = this;
+        }
+    }
+
+    public ResourceAmount GetResourceAmount(ResourceTypes resource)
+    {
+        var found = resourceAmounts.Find(r => r.resourceType == resource);
+        if (found == null)
+        {
+            Debug.LogWarning($"Resource {resource} not found!");
+            return new ResourceAmount { resourceType = resource, resourceAmount = 0 };
+        }
+        return found;
+    }
+
+    public void AddResource(ResourceTypes type, int amount)
+    {
+        var res = GetResourceAmount(type);
+        res.resourceAmount += amount;
+        ClampResource(type);
+    }
+
+    // Clamp resource to prevent negative values for certain types
+    private void ClampResource(ResourceTypes type)
+    {
+        // Only clamp for resources that should not go negative
+        switch (type)
+        {
+            case ResourceTypes.Food:
+            case ResourceTypes.Money:
+            case ResourceTypes.Wood:
+            case ResourceTypes.Steel:
+            case ResourceTypes.Water:
+            case ResourceTypes.Faith:
+            case ResourceTypes.Population:
+                var res = GetResourceAmount(type);
+                if (res.resourceAmount < 0)
+                    res.resourceAmount = 0;
+                break;
+            default:
+                break;
+        }
+    }
+
+    public void SetResource(ResourceTypes type, int amount)
+    {
+        var res = GetResourceAmount(type);
+        res.resourceAmount = amount;
+    }
+    public void ApplyDailyResourceChanges()
+    {
+        // For each resource type that has a corresponding per-day value, add it to the main resource
+        AddResource(ResourceTypes.Faith, GetResourceAmount(ResourceTypes.faithPerDay).resourceAmount);
+        AddResource(ResourceTypes.Money, GetResourceAmount(ResourceTypes.moneyPerDay).resourceAmount);
+        AddResource(ResourceTypes.Wood, GetResourceAmount(ResourceTypes.woodPerDay).resourceAmount);
+        AddResource(ResourceTypes.Steel, GetResourceAmount(ResourceTypes.steelPerDay).resourceAmount);
+        AddResource(ResourceTypes.Water, GetResourceAmount(ResourceTypes.waterPerDay).resourceAmount);
+        AddResource(ResourceTypes.Food, GetResourceAmount(ResourceTypes.foodPerDay).resourceAmount);
+        AddResource(ResourceTypes.Population, GetResourceAmount(ResourceTypes.populationPerDay).resourceAmount);
+    }
+}
+
+[System.Serializable]
+public class ResourceAmount
+{
+    public ResourceManager.ResourceTypes resourceType;
+    public int resourceAmount;
+}

Assets/Scripts/Resources.cs

@@ -1,48 +0,0 @@
-using UnityEngine;
-using System.Collections.Generic;
-
-public class Resources : MonoBehaviour
-{
-     private void Awake()
- {
-    // if Instance is not null, but has a value that is not this
-    // version of the object, destroy this version because only 
-    // one is allowed to exist.
-    // otherwise assign this version to Instance.
-    if(Instance != null && Instance != this)
-    {
-        Destroy(this.gameObject);
-    }
-    else
-    {
-        Instance = this;
-    }
- }
-  // note that the setter is private, meaning that no other class can set this property
-    public static Resources Instance { get; private set; } 
-    public enum ResourceTypes { Gold, Steel, Wood, Water };
-    public List<ResourceAmount> resourceAmounts;
-    // Start is called once before the first execution of Update after the MonoBehaviour is created
-    void Start()
-    {
-
-    }
-
-    // Update is called once per frame
-    void Update()
-    {
-
-    }
-    public ResourceAmount GetResourceAmount(ResourceTypes resource)
-    {
-        // 'r' holds the current ResourceAmount element from our list as we iterate through it... 
-        return resourceAmounts.Find(r => r.resourceType == resource);
-    }
-}
- [System.Serializable]
- public class ResourceAmount
- {
-    public Resources.ResourceTypes resourceType;
-    public int resourceAmount;
- }
-

Assets/Scripts/TechDatabase.cs

@@ -1,27 +1,27 @@
-using UnityEngine;
+using System.Collections;
  using System.Collections.Generic;
-
+ using UnityEngine;
  public class TechDatabase : MonoBehaviour
  {
     public List<TechGroup> techGroups;
-    [System.Serializable]
-    public class TechGroup
-    {
-        public List<Technology> technologies;
-    }
     private void Update()
     {
-    if(Input.GetKeyDown(KeyCode.O))
+        if (Input.GetKeyDown(KeyCode.A))
         {
             techGroups[0].technologies[0].StartResearching();
         }
-    if (Input.GetKeyDown(KeyCode.P))
+        if (Input.GetKeyDown(KeyCode.S))
         {
             techGroups[1].technologies[0].StartResearching();
         }
         if (Input.GetKeyDown(KeyCode.Space))
         {
-        TechEvents.TurnPassed(null); // Trigger the turn passed event
+             TechEvents.TurnPassed();
         }
     }
  }
+ [System.Serializable]
+ public class TechGroup
+ {
+    public List<Technology> technologies;
+ }

Assets/Scripts/TechEvents.cs

@@ -2,36 +2,26 @@ using System.Collections;
  using System.Collections.Generic;
  using UnityEngine;
  using System;
-
  public class TechEvents : MonoBehaviour
  {
     public static Action<Technology> OnTechResearchStarted;
     public static Action<Technology> OnTechResearchCompleted;
     public static Action<Technology> OnTechUnlocked;
-    public static Action OnTurnPassed;  // takes no parameter passed in
+    public static Action OnTurnPassed;
     public static void TechResearchStarted(Technology tech)
     {
-        // note the use of the null check operator (?) below
-        // this translates into: "if this object is not null, call this method on it"
         OnTechResearchStarted?.Invoke(tech);
     }
     public static void TechResearchCompleted(Technology tech)
     {
-        // note the use of the null check operator (?) below
-        // this translates into: "if this object is not null, call this method on it"
         OnTechResearchCompleted?.Invoke(tech);
     }
     public static void TechUnlocked(Technology tech)
     {
-        // note the use of the null check operator (?) below
-        // this translates into: "if this object is not null, call this method on it"
         OnTechUnlocked?.Invoke(tech);
     }
-    public static void TurnPassed(Technology tech)
+    public static void TurnPassed()
     {
-        // note the use of the null check operator (?) below
-        // this translates into: "if this object is not null, call this method on it"
         OnTurnPassed?.Invoke();
     }
  }
-

Assets/Scripts/TechNodeConnector.cs

@@ -0,0 +1,23 @@
+using System.Collections;
+ using System.Collections.Generic;
+ using UnityEngine;
+public class TechNodeConnector : MonoBehaviour
+{
+    private UnityEngine.UI.Image image;
+    // Start is called before the first frame update
+    void Awake()
+    {
+        image = GetComponent<UnityEngine.UI.Image>();
+    }
+    public void MakeConnections(Vector3 fromPoint, Vector3 toPoint, Color color)
+    {
+        image.color = color;
+        Vector3 centerPosition = (fromPoint + toPoint) / 2;
+        Vector3 direction = Vector3.Normalize(fromPoint - toPoint);
+        transform.right = direction;
+        transform.position = centerPosition;
+        transform.localScale = new Vector3(Vector3.Distance(fromPoint, toPoint) / 10, 1, 1);
+        transform.SetAsFirstSibling();
+    }
+}
+

Assets/Scripts/TechNodeConnector.cs.meta

@@ -0,0 +1,2 @@
+fileFormatVersion: 2
+guid: 7554ecf4667c65b4ba007999cd76c9e7

Assets/Scripts/TechNodeUI.cs

@@ -3,42 +3,83 @@ using System.Collections;
  using UnityEngine;
  using UnityEngine.UI;
  using TMPro;
-public class TechNodeUI : MonoBehaviour
+ using UnityEngine.EventSystems;
+ public class TechNodeUI : MonoBehaviour, IPointerEnterHandler, IPointerExitHandler
  {
     [SerializeField]
     private Image techImage;
+    [SerializeField] Image techStatusImage;
+    [SerializeField] Sprite techStatusLocked;
+    [SerializeField] Sprite techStatusUnlocked;
+    [SerializeField] Sprite techStatusResearching;
+    [SerializeField] Sprite techStatusCompleted;
     [SerializeField]
     private TextMeshProUGUI techTitleText;
     [HideInInspector]
-    public Technology technology;  // the technology this node represents
+    public Technology technology;
     [SerializeField]
     private Image nodeImage;
+    [SerializeField]
+    private TechNodeConnector connector;
+    [SerializeField]
+    private Outline outline;
     public void Initialize(Technology tech)
     {
         technology = tech;
         techTitleText.text = tech.techName;
         techImage.sprite = tech.techImage;
+        outline.effectColor = tech.techUIColor;
         if (tech.availabilityState == Technology.AvailabilityState.Locked)
         {
-            nodeImage.color = Color.gray; // gray out the node if locked
+            nodeImage.color = Color.gray;
+            techStatusImage.sprite = techStatusLocked;
+            techStatusImage.color = Color.black;
+            TechEvents.OnTechUnlocked += UnlockedTechnology;
         }
         GetComponent<Button>().onClick.AddListener(StartResearching);
     }
     public void StartResearching()
     {
-        if (technology.availabilityState == Technology.AvailabilityState.Unlocked &&
+        if (technology.availabilityState == Technology.AvailabilityState.Unlocked && technology.StartResearching())
-            technology.StartResearching())
         {
-            nodeImage.color = Color.blue;  // indicate being researched
+            nodeImage.color = Color.blue;
+            techStatusImage.color = Color.black;
+            techStatusImage.sprite = techStatusResearching;
             TechEvents.OnTechResearchCompleted += CompletedResearch;
         }
     }
+    public void Connect(List<TechNodeUI> nodes, Transform parent)
+    {
+        foreach (RequiredTech tech in technology.techRequirements)
+        {
+            TechNodeUI connectedNode = nodes.Find(t=>t.technology.techName == tech.techName);
+            TechNodeConnector nodeConnector = Instantiate(connector, parent);
+            nodeConnector.MakeConnections(transform.position, connectedNode.transform.position, connectedNode.technology.techUIColor);
+        }
+    }
     public void CompletedResearch(Technology tech)
     {
-    // complete only for this technology
-    if (!tech.Equals(technology))
-        return;
         nodeImage.color = Color.green;
+        techStatusImage.sprite = techStatusCompleted;
+        techStatusImage.color = Color.black;
         TechEvents.OnTechResearchCompleted -= CompletedResearch;
     }
+    public void UnlockedTechnology(Technology tech)
+    {
+        if (tech == technology)
+        {
+            nodeImage.color = Color.yellow;
+            techStatusImage.sprite = techStatusUnlocked;
+            techStatusImage.color = Color.black;
+            TechEvents.OnTechUnlocked -= UnlockedTechnology;
+        }
+    }
+     public void OnPointerEnter(PointerEventData eventData)
+    {
+        TechTooltip.Instance.Show(this.technology);
+    }
+    public void OnPointerExit(PointerEventData eventData)
+    {
+        TechTooltip.Instance.Hide();
+    }
  }

Assets/Scripts/TechTooltip.cs

@@ -0,0 +1,41 @@
+using System.Collections;
+ using System.Collections.Generic;
+ using UnityEngine;
+ using System.Linq;
+ using TMPro;
+ public class TechTooltip : MonoBehaviour
+ {
+    public static TechTooltip Instance { get; private set; }
+    [SerializeField]
+    private TextMeshProUGUI techCostText, techDescriptionText, techModText;
+    private void LateUpdate()
+    {
+        transform.position = Input.mousePosition;
+    }
+    public void Show(Technology tech)
+    {
+        gameObject.SetActive(true);
+        string cost = string.Join("\n", tech.resourceCosts.Select(c => string.Format("-{0} {1}", c.resourceAmount, c.resourceType)));
+        string mods = string.Join("\n", tech.techModifiers.Select(m => string.Format("+{0} {1}", m.amount, m.modifier)));
+        techCostText.text = cost;
+        techModText.text = mods;
+        techDescriptionText.text = tech.techDescription;
+    }
+        public void Hide()
+    {
+        gameObject.SetActive(false);
+    }
+    // Start is called before the first frame update
+    void Awake()
+    {
+        gameObject.SetActive(false);
+        if (Instance != null && Instance != this)
+        {
+            Destroy(this.gameObject);
+        }
+        else
+        {
+    Instance = this;
+        }
+    }
+}

Assets/Scripts/TechTooltip.cs.meta

@@ -0,0 +1,2 @@
+fileFormatVersion: 2
+guid: 3767383ff1186104f8155d759c4d97a7

Assets/Scripts/TechTreeUI.cs

@@ -3,20 +3,21 @@ using System.Collections.Generic;
  using UnityEngine;
  public class TechTreeUI : MonoBehaviour
  {
-    private List<TechDatabase.TechGroup> techGroups;
+    private List<TechGroup> techGroups;
     [SerializeField]
     private GameObject techColumn;
     [SerializeField]
     private TechNodeUI techNode;
     [SerializeField]
     private Transform techPanel;
+    private List<TechNodeUI> techNodes = new List<TechNodeUI>();
     // Start is called before the first frame update
     void Start()
     {
-        techGroups = FindFirstObjectByType<TechDatabase>().techGroups;
+        techGroups = FindAnyObjectByType<TechDatabase>().techGroups;
-        BuildTree();
+        StartCoroutine(BuildTree());
     }
-    void BuildTree()
+    IEnumerator BuildTree()
     {
         for (int i = 0; i < techGroups.Count; i++)
         {
@@ -24,8 +25,14 @@ public class TechTreeUI : MonoBehaviour
             for (int j = 0; j < techGroups[i].technologies.Count; j++)
             {
                 TechNodeUI node = Instantiate(techNode, col);
+                techNodes.Add(node);
                 node.Initialize(techGroups[i].technologies[j]);
             }
         }
+        yield return 0;
+        for (int i = 0; i < techNodes.Count; i++)
+        {
+            techNodes[i].Connect(techNodes, techPanel);
+        }
     }
  }

Assets/Scripts/Technology.cs

@@ -2,19 +2,21 @@ using System.Collections;
  using System.Collections.Generic;
  using UnityEngine;
  using System.Linq;
-
  [System.Serializable]
  public class Technology
  {
-    public enum AvailabilityState { Locked, Unlocked, Researching, Learned };
-    public AvailabilityState availabilityState;
     public string techName;
+    public enum AvailabilityState { Locked, Unlocked, Researching, Learned }
+    public AvailabilityState availabilityState;
     public string techDescription;
     public Sprite techImage;
     public List<ResourceAmount> resourceCosts;
     public List<RequiredTech> techRequirements;
+    public List<TechModifiers> techModifiers;
+    [SerializeField]
     private int researchedTurns;
     public int requiredResearchTurns;
+    public Color techUIColor;
     public Technology()
     {
         if (availabilityState == AvailabilityState.Locked)
@@ -25,14 +27,14 @@ public class Technology
     public void Unlock()
     {
         availabilityState = AvailabilityState.Unlocked;
-        TechEvents.OnTechResearchCompleted -= CheckRequirements; // add this line
+        TechEvents.TechUnlocked(this);
+        TechEvents.OnTechResearchCompleted -= CheckRequirements;
         Debug.Log("Tech was unlocked:" + this.techName);
     }
     public void Learn()
     {
         TechEvents.TechResearchCompleted(this);
-        // stop listening for turns passing...
+        TechEvents.OnTurnPassed -= NewTurn;
-        TechEvents.OnTurnPassed -= NewTurn; // add this line
         availabilityState = AvailabilityState.Learned;
         Debug.Log("Tech was learned: " + this.techName);
     }
@@ -49,23 +51,14 @@ public class Technology
     }
     private void CheckRequirements(Technology tech)
     {
-        // only do the check if this tech is locked
         if (availabilityState == AvailabilityState.Locked)
         {
-            /* go through the techRequirements list and see if the newly available te
- ch (the parameter
-             * that was passed into this function) was one of this tech's requirement
- s.
-             */
             RequiredTech requireTech = techRequirements.FirstOrDefault(rt=>rt.techName == tech.techName);
-            // if there is a requiredTech and it is not complete, perform these steps
             if (requireTech != null && !requireTech.completed)
             {
-                requireTech.completed = true; // mark the requirement as complete
+                requireTech.completed = true;
-                // check if all requirements are complete...
                 if (!techRequirements.Any(t=>t.completed == false))
                 {
-                    // ...if so, this tech is now unlocked and available
                     Unlock();
                 }
             }
@@ -74,37 +67,26 @@ public class Technology
     public bool StartResearching()
     {
         bool hasEnoughResources = false;
-        // keep track of how many resources you have the required amount of...
         List<ResourceAmount> resourceAmounts = new List<ResourceAmount>();
-        // loop through each of the required resources
         for (int i = 0; i < resourceCosts.Count; i++)
         {
-            // find out how much of a type (wood, etc.) you currently have
+            ResourceAmount currentAmount = ResourceManager.Instance.GetResourceAmount(resourceCosts[i].resourceType);
-            ResourceAmount currentAmount = Resources.Instance.GetResourceAmount(resourceCosts[i].resourceType);
-            // find out how much is required. Cache the cost
             ResourceAmount cost = resourceCosts[i];
-            // only add to list if you have enough of resource type...
             if (currentAmount.resourceAmount >= cost.resourceAmount)
             {
                 resourceAmounts.Add(currentAmount);
             }
         }
-        // if the number of resources you can fulfill is equal to the number
-        // required by the technology, then you can start researching
         if (resourceAmounts.Count >= resourceCosts.Count)
         {
             hasEnoughResources = true;
             for (int i = 0; i < resourceCosts.Count; i++)
             {
-                // go ahead and subtract all the resource costs from the player...
             resourceAmounts[i].resourceAmount -= resourceCosts[i].resourceAmount;
             }
             availabilityState = AvailabilityState.Researching;
-            // fire off a TechResearchStarted event, specifying which kind of tech...
+            TechEvents.TechResearchStarted(this);
-            TechEvents.TechResearchStarted(this);  // add this line
+            TechEvents.OnTurnPassed += NewTurn;
-            // start listening for turns to pass by subscribing to turn event. 
-            // Have NewTurn() method handle the events...
-            TechEvents.OnTurnPassed += NewTurn; // add this line     
         }
         return hasEnoughResources;
     }
@@ -115,3 +97,10 @@ public class Technology
     public string techName;
     public bool completed;
  }
+ [System.Serializable]
+ public class TechModifiers
+ {
+    public enum ModifierType { Gold, Steel, Wood, Water, Population, Food }
+    public ModifierType modifier;
+    public float amount;
+ }