half-earth/nodes/interaction_modes/heat_overlay.tscn

@@ -1,6 +0,0 @@
-[gd_scene load_steps=2 format=2]
-
-[ext_resource path="res://scripts/overlays/HeatOverlay.cs" type="Script" id=1]
-
-[node name="Heat Overlay" type="Node"]
-script = ExtResource( 1 )

half-earth/resources/tile_types/developed.tres

@@ -8,4 +8,3 @@ Name = "Developed"
 BuildLabel = "[D]eveloped"
 Key = 68
 Color = Color( 0.372549, 0.372549, 0.372549, 1 )
-HeatGeneration = 0.1

half-earth/resources/tile_types/wild.tres

@@ -8,4 +8,3 @@ Name = "Wild"
 BuildLabel = "[W]ild"
 Key = 87
 Color = Color( 0, 0.545098, 0.0196078, 1 )
-HeatGeneration = -0.025

half-earth/scripts/WorldGrid.cs

@@ -40,7 +40,7 @@ public class WorldGrid : Node2D
             {
                 var tile = _tiles[x, y];
                 var material = tile.material;
-                material.SetShaderParam("t", tile.temperature);
+                material.SetShaderParam("t", tile.value);
             }
         }
     }
@@ -100,7 +100,7 @@ public class WorldGrid : Node2D
             {
                 var tile = new Tile();
                 tile.isHighlighted = false;
-                tile.temperature = 0.0f;
+                tile.value = 0.0f;
                 tile.type = _startTileType;
 
                 var node = TileScene.Instance<Node2D>();
@@ -122,7 +122,6 @@ public class WorldGrid : Node2D
 
     public void _on_Clock_OnTick(int ticks)
     {
-        GenerateHeat();
         Diffuse();
     }
 
@@ -136,27 +135,13 @@ public class WorldGrid : Node2D
     private void GetNeighbourTemperatures(int x, int y, out float nx, out float ny, out float px, out float py)
     {
         // default value
-        var t = _tiles[x, y].temperature;
+        var t = _tiles[x, y].value;
 
-        nx = x > 0 ? _tiles[x - 1, y].temperature : t;
-        px = x < Size - 1 ? _tiles[x + 1, y].temperature : t;
+        nx = x > 0 ? _tiles[x - 1, y].value : t;
+        px = x < Size - 1 ? _tiles[x + 1, y].value : t;
 
-        ny = y > 0 ? _tiles[x, y - 1].temperature : t;
-        py = y < Size - 1 ? _tiles[x, y + 1].temperature : t;
-    }
-
-    private void GenerateHeat()
-    {
-        for (int x = 0; x < Size; x++)
-        {
-            for (int y = 0; y < Size; y++)
-            {
-                var tile = _tiles[x, y];
-                var type = tile.type;
-                tile.temperature += type.HeatGeneration;
-                _tiles[x, y] = tile;
-            }
-        }
+        ny = y > 0 ? _tiles[x, y - 1].value : t;
+        py = y < Size - 1 ? _tiles[x, y + 1].value : t;
     }
 
     private void Diffuse()
@@ -165,7 +150,7 @@ public class WorldGrid : Node2D
         {
             for (int y = 0; y < Size; y++)
             {
-                float t = _tiles[x, y].temperature;
+                float t = _tiles[x, y].value;
                 var D = DiffusionCoefficient;
 
                 GetNeighbourTemperatures(
@@ -176,10 +161,7 @@ public class WorldGrid : Node2D
                     out var py);
 
                 // current value
-                var temperature = TransferHeat(t, D, nx, ny, px, py);
-                // TODO: what if it's really really cold out?
-                temperature = Mathf.Max(0, temperature);
-                _nextValues[x, y] = temperature;
+                _nextValues[x, y] = TransferHeat(t, D, nx, ny, px, py);
             }
         }
 
@@ -187,7 +169,7 @@ public class WorldGrid : Node2D
         {
             for (int y = 0; y < Size; y++)
             {
-                _tiles[x, y].temperature = _nextValues[x, y];
+                _tiles[x, y].value = _nextValues[x, y];
             }
         }
     }

half-earth/scripts/overlays/HeatOverlay.cs

@@ -1,10 +0,0 @@
-using Godot;
-using System;
-
-public class HeatOverlay : Node
-{
-    public override void _Ready()
-    {
-
-    }
-}

half-earth/scripts/overlays/NoOverlay.cs

@@ -1,6 +0,0 @@
-using Godot;
-
-public class NoOverlay : Node
-{
-
-}

half-earth/scripts/overlays/Overlays.cs

@@ -1,34 +0,0 @@
-using Godot;
-using System;
-
-public class Overlays : Node
-{
-    [Export]
-    private KeyList _cycleOverlayKey;
-
-    public override void _Ready()
-    {
-
-    }
-
-    public override void _Input(InputEvent @event)
-    {
-        base._Input(@event);
-
-        if (!(@event is InputEventKey keyEvent))
-            return;
-
-        if (!(keyEvent.Pressed))
-            return;
-
-        if ((KeyList)keyEvent.Scancode != _cycleOverlayKey)
-            return;
-
-
-    }
-
-    private void CycleOverlay()
-    {
-
-    }
-}

half-earth/scripts/tile/Tile.cs

@@ -3,7 +3,7 @@ using Godot;
 public struct Tile
 {
     public bool isHighlighted;
-    public float temperature;
+    public float value;
     public ShaderMaterial material;
     public TileType type;
 }

half-earth/scripts/tile/TileType.cs

@@ -14,9 +14,6 @@ public class TileType : Resource
     [Export]
     public Color Color { get; private set; }
 
-    [Export]
-    public float HeatGeneration { get; private set; }
-
     public override string ToString()
     {
         return Name;