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half-earth
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base: ktyl:3bebca8b2de570a26b0cdfdc5011b2d2c3a8ffaf
Branches Tags
ktyl:main
ktyl:rewilding
ktyl:tile-health
ktyl:heat
ktyl:tile-types
ktyl:diffusion
..
compare: ktyl:dadea16f6bb3ab5bcd1ed22da70e9e1a3f4289cd
Branches Tags
ktyl:rewilding
ktyl:main
ktyl:tile-health
ktyl:heat
ktyl:tile-types
ktyl:diffusion

1 Commits
3bebca8b2d ... dadea16f6b

Author SHA1 Message Date
Cat Flynn dadea16f6b add settings for vscode 2022-12-07 00:10:31 +00:00
11 changed files with 31 additions and 181 deletions
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6
half-earth/materials/cursor.tres
View File

@ -4,6 +4,6 @@
[resource]
shader = ExtResource( 1 )
shader_param/lowColor = Color( 1, 0.960784, 0, 1 )
shader_param/highColor = Color( 0.921569, 0, 1, 1 )
shader_param/t = null
shader_param/baseColor = Color( 0.992157, 1, 0, 1 )
shader_param/highlightColor = Color( 1, 0, 0.984314, 1 )
shader_param/isHighlighted = 0

6
half-earth/materials/tile.tres
View File

@ -5,6 +5,6 @@
[resource]
resource_local_to_scene = true
shader = ExtResource( 1 )
shader_param/lowColor = Color( 0, 0, 0, 1 )
shader_param/highColor = Color( 1, 0.560784, 0, 1 )
shader_param/t = null
shader_param/baseColor = Color( 0.0823529, 0, 1, 1 )
shader_param/highlightColor = Color( 1, 0, 0, 1 )
shader_param/isHighlighted = null

6
half-earth/nodes/clock.tscn
View File

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

22
half-earth/nodes/debug_ui.tscn
View File

@ -1,22 +0,0 @@
[gd_scene load_steps=2 format=2]
[ext_resource path="res://scripts/DebugUI.cs" type="Script" id=1]
[node name="Debug UI" type="Control"]
anchor_right = 1.0
anchor_bottom = 1.0
script = ExtResource( 1 )
TicksLabelPath = NodePath("Ticks")
[node name="Ticks" type="Label" parent="."]
anchor_left = 1.0
anchor_top = 1.0
anchor_right = 1.0
anchor_bottom = 1.0
margin_right = -10.0
margin_bottom = -10.0
grow_horizontal = 0
grow_vertical = 0
text = "ticks: 0"
align = 2
valign = 2

13
half-earth/nodes/game.tscn
View File

@ -1,20 +1,11 @@
[gd_scene load_steps=5 format=2]
[gd_scene load_steps=3 format=2]
[ext_resource path="res://nodes/grid.tscn" type="PackedScene" id=1]
[ext_resource path="res://nodes/grid_cursor.tscn" type="PackedScene" id=2]
[ext_resource path="res://nodes/debug_ui.tscn" type="PackedScene" id=3]
[ext_resource path="res://nodes/clock.tscn" type="PackedScene" id=4]
[node name="Root" type="Node"]
[node name="Root" type="Node2D"]
[node name="Grid" parent="." instance=ExtResource( 1 )]
[node name="Cursor" parent="." instance=ExtResource( 2 )]
Grid = NodePath("../Grid")
[node name="Debug UI" parent="." instance=ExtResource( 3 )]
[node name="Clock" parent="." instance=ExtResource( 4 )]
[connection signal="OnTick" from="Clock" to="Grid" method="_on_Clock_OnTick"]
[connection signal="OnTick" from="Clock" to="Debug UI" method="_on_Clock_OnTick"]

31
half-earth/scripts/Clock.cs
View File

@ -1,31 +0,0 @@
using Godot;
using System;
public class Clock : Node
{
[Signal]
delegate void OnTick(int ticks);
private int _ticks = 0;
public override void _Input(InputEvent @event)
{
base._Input(@event);
if (@event is InputEventKey keyEvent && keyEvent.Pressed)
{
switch ((KeyList)keyEvent.Scancode)
{
case KeyList.Space:
Tick();
break;
}
}
}
private void Tick()
{
_ticks++;
EmitSignal(nameof(OnTick), _ticks);
}
}

22
half-earth/scripts/DebugUI.cs
View File

@ -1,22 +0,0 @@
using Godot;
using System;
public class DebugUI : Control
{
[Export]
public NodePath TicksLabelPath { private get; set; }
private Label _ticksLabel;
public override void _Ready()
{
_ticksLabel = GetNode<Label>(TicksLabelPath);
SetTicksText(0);
}
public void _on_Clock_OnTick(int ticks) => SetTicksText(ticks);
private void SetTicksText(int ticks)
{
_ticksLabel.Text = $"ticks: {ticks}";
}
}

12
half-earth/scripts/GridCursor.cs
View File

@ -8,18 +8,18 @@ public class GridCursor : Sprite
private WorldGrid _grid;
private ShaderMaterial _material;
private const string T = "t";
private const string IS_HIGHLIGHTED = "isHighlighted";
public override void _Ready()
{
_grid = GetNode<WorldGrid>(Grid);
_material = (ShaderMaterial)Material;
}
public override void _Input(InputEvent @event)
{
base._Input(@event);
if (@event is InputEventMouseMotion mouseMoveEvent)
{
var pos = mouseMoveEvent.Position;
@ -37,12 +37,12 @@ public class GridCursor : Sprite
{
var pos = mouseButtonEvent.Position;
_grid.GetGridPos(pos, out var x, out var y);
_grid.SetTileValue(x, y, 1.0f);
_material.SetShaderParam(T, 1f);
_grid.ToggleTileHighlight(x, y);
_material.SetShaderParam(IS_HIGHLIGHTED, 1);
}
else
{
_material.SetShaderParam(T, 0f);
_material.SetShaderParam(IS_HIGHLIGHTED, 0);
}
break;
}

8
half-earth/scripts/Tile.cs
View File

@ -1,8 +0,0 @@
using Godot;
public struct Tile
{
public bool isHighlighted;
public float value;
public ShaderMaterial material;
}

78
half-earth/scripts/WorldGrid.cs
View File

@ -8,15 +8,16 @@ public class WorldGrid : Node2D
[Export]
public int Size { get; set; }
[Export]
public int CellSize { get; set; }
[Export]
public float DiffusionCoefficient { get; set; } = 0.01f;
private struct Tile
{
public bool isHighlighted;
public ShaderMaterial material;
}
private Tile[,] _tiles;
private float[,] _nextValues = null;
// Called when the node enters the scene tree for the first time.
public override void _Ready()
@ -27,18 +28,18 @@ public class WorldGrid : Node2D
public override void _Process(float delta)
{
base._Process(delta);
for (int x = 0; x < Size; x++)
{
for (int y = 0; y < Size; y++)
{
var tile = _tiles[x, y];
var material = tile.material;
material.SetShaderParam("t", tile.value);
material.SetShaderParam("isHighlighted", tile.isHighlighted ? 1 : 0);
}
}
}
public bool IsInBounds(int x, int y)
{
return x >= 0 && x < Size && y >= 0 && y < Size;
@ -52,11 +53,6 @@ public class WorldGrid : Node2D
_tiles[x, y].isHighlighted ^= true;
}
public void SetTileValue(int x, int y, float value)
{
_tiles[x, y].value = value;
}
public void GetGridPos(Vector2 position, out int x, out int y)
{
x = Mathf.FloorToInt(position.x / CellSize);
@ -79,9 +75,8 @@ public class WorldGrid : Node2D
private void GenerateGrid(int size)
{
this.Clear();
_tiles = new Tile[size, size];
_nextValues = new float[size, size];
for (int x = 0; x < size; x++)
{
@ -89,8 +84,7 @@ public class WorldGrid : Node2D
{
var tile = new Tile();
tile.isHighlighted = false;
tile.value = 0.0f;
var node = TileScene.Instance<Node2D>();
this.AddChild(node);
var position = new Vector2
@ -101,55 +95,9 @@ public class WorldGrid : Node2D
node.Position = position;
var canvasItem = (CanvasItem)node;
tile.material = (ShaderMaterial)canvasItem.Material;
_tiles[x, y] = tile;
}
}
}
public void _on_Clock_OnTick(int ticks)
{
Diffuse();
}
private float TransferHeat(float t0, float alpha, float nx, float ny, float px, float py)
{
float d2tdx2 = nx - 2 * t0 + px;
float d2tdy2 = ny - 2 * t0 + py;
return t0 + alpha * (d2tdx2 + d2tdy2);
}
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].value;
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].value : t;
py = y < Size - 1 ? _tiles[x, y + 1].value : t;
}
private void Diffuse()
{
for (int x = 0; x < Size; x++)
{
for (int y = 0; y < Size; y++)
{
float t = _tiles[x, y].value;
var D = DiffusionCoefficient;
GetNeighbourTemperatures(
x, y,
out var nx,
out var ny,
out var px,
out var py);
// current value
_nextValues[x, y] = TransferHeat(t, D, nx, ny, px, py);
}
}
}
}

8
half-earth/shaders/tile_shader.gdshader
View File

@ -1,9 +1,9 @@
shader_type canvas_item;
uniform vec4 lowColor : hint_color;
uniform vec4 highColor : hint_color;
uniform float t;
uniform vec4 baseColor : hint_color;
uniform vec4 highlightColor : hint_color;
uniform int isHighlighted;
void fragment() {
COLOR = mix(lowColor, highColor, t);
COLOR = mix(baseColor, highlightColor, float(isHighlighted));
}