martin
/
GodotComponentTest
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Noise based map generation, movement component uses height.

WorldChunkRefactoring
Martin Felis 2022-12-28 16:22:53 +01:00
parent 12c1e4df86
commit 041d580550
17 changed files with 401 additions and 166 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
GodotComponentTest.csproj
View File

@ -5,7 +5,9 @@
<!-- Required for some nuget packages to work --> <!-- Required for some nuget packages to work -->
<!-- See https://www.reddit.com/r/godot/comments/l0naqg/comment/gjwfspm/ --> <!-- See https://www.reddit.com/r/godot/comments/l0naqg/comment/gjwfspm/ -->
<!-- And https://github.com/godotengine/godot/issues/42271#issuecomment-751423827 --> <!-- And https://github.com/godotengine/godot/issues/42271#issuecomment-751423827 -->
<CopyLocalLockFileAssemblies>true</CopyLocalLockFileAssemblies> <CopyLocalLockFileAssemblies>true</CopyLocalLockFileAssemblies>
<DefaultItemExcludes>$(DefaultItemExcludes);script_templates/*</DefaultItemExcludes>
</PropertyGroup> </PropertyGroup>
<ItemGroup> <ItemGroup>

19
HexCell.cs
View File

@ -15,8 +15,11 @@ public class HexCell : Resource
public static readonly Array DIR_ALL = new Array() public static readonly Array DIR_ALL = new Array()
{ DIR_N, DIR_NE, DIR_SE, DIR_S, DIR_SW, DIR_NW }; { DIR_N, DIR_NE, DIR_SE, DIR_S, DIR_SW, DIR_NW };
public HexCell() { } public HexCell()
{
}
public HexCell(float cubeX, float cubeY, float cubeZ) public HexCell(float cubeX, float cubeY, float cubeZ)
{ {
CubeCoords = RoundCoords(new Vector3(cubeX, cubeY, cubeZ)); CubeCoords = RoundCoords(new Vector3(cubeX, cubeY, cubeZ));
@ -43,18 +46,17 @@ public class HexCell : Resource
} }
private Vector3 _cubeCoords; private Vector3 _cubeCoords;
public Vector3 CubeCoords public Vector3 CubeCoords
{ {
get get { return _cubeCoords; }
{
return _cubeCoords;
}
set set
{ {
if (Mathf.Abs(value.x + value.y + value.z) > 0.0001) if (Mathf.Abs(value.x + value.y + value.z) > 0.0001)
{ {
GD.Print("Warning: Invalid cube coordinates for hex (x + y + z != 0): ", value.ToString()); GD.Print("Warning: Invalid cube coordinates for hex (x + y + z != 0): ", value.ToString());
} }
_cubeCoords = RoundCoords(value); _cubeCoords = RoundCoords(value);
} }
} }
@ -63,10 +65,7 @@ public class HexCell : Resource
{ {
get => new Vector2(CubeCoords.x, CubeCoords.y); get => new Vector2(CubeCoords.x, CubeCoords.y);
set set { CubeCoords = AxialToCubeCoords(value); }
{
CubeCoords = AxialToCubeCoords(value);
}
} }
public Vector2 OffsetCoords public Vector2 OffsetCoords

11
HexGrid.cs
View File

@ -13,22 +13,20 @@ public class HexGrid : Resource
{ {
get { return _hexSize; } get { return _hexSize; }
} }
public Vector2 HexScale public Vector2 HexScale
{ {
get get { return _hexScale; }
{
return _hexScale;
}
set set
{ {
_hexScale = value; _hexScale = value;
_hexSize = _baseHexSize * _hexScale; _hexSize = _baseHexSize * _hexScale;
_hexTransform = new Transform2D( _hexTransform = new Transform2D(
new Vector2(_hexSize.x * 3/4, -_hexSize.y / 2), new Vector2(_hexSize.x * 3 / 4, -_hexSize.y / 2),
new Vector2(0, -_hexSize.y), new Vector2(0, -_hexSize.y),
new Vector2(0, 0) new Vector2(0, 0)
); );
_hexTransformInv = _hexTransform.AffineInverse(); _hexTransformInv = _hexTransform.AffineInverse();
} }
} }
@ -62,5 +60,4 @@ public class HexGrid : Resource
HexCell result = new HexCell(_hexTransformInv * planeCoord); HexCell result = new HexCell(_hexTransformInv * planeCoord);
return result; return result;
} }
} }

79
components/MovableComponent.cs
View File

@ -10,7 +10,7 @@ public class MovableComponent : Node
public float targetAngle = 0; public float targetAngle = 0;
public float currentAngle = 0; public float currentAngle = 0;
public float currentAngularVelocity = 0; public float currentAngularVelocity = 0;
[Export] public float maxSpeed = 3; [Export] public float maxSpeed = 3;
private SpringDamper _positionSpringDamper; private SpringDamper _positionSpringDamper;
@ -32,49 +32,50 @@ public class MovableComponent : Node
// Called every frame. 'delta' is the elapsed time since the previous frame. // Called every frame. 'delta' is the elapsed time since the previous frame.
public override void _Process(float delta) public override void _Process(float delta)
{ {
Vector3 targetDir = Vector3.Zero; Vector3 targetDir = Vector3.Zero;
Vector3 targetError = targetPosition - currentPosition; Vector3 targetError = targetPosition - currentPosition;
if (targetError.LengthSquared() > 0.01) if (targetError.LengthSquared() > 0.01)
{ {
targetDir = targetError.Normalized(); targetDir = targetError.Normalized();
targetAngle = new Vector3(0, 0, 1).SignedAngleTo(targetDir, Vector3.Up); targetAngle = new Vector3(0, 0, 1).SignedAngleTo(targetDir, Vector3.Up);
if (currentAngle < Mathf.Pi && targetAngle > Mathf.Pi) if (currentAngle < Mathf.Pi && targetAngle > Mathf.Pi)
{ {
}
}
if (targetAngle - currentAngle > Mathf.Pi) if (targetAngle - currentAngle > Mathf.Pi)
{ {
currentAngle += 2 * Mathf.Pi; currentAngle += 2 * Mathf.Pi;
} }
else if (targetAngle - currentAngle < -Mathf.Pi) else if (targetAngle - currentAngle < -Mathf.Pi)
{ {
currentAngle -= 2 * Mathf.Pi; currentAngle -= 2 * Mathf.Pi;
} }
} }
if (Mathf.Abs(currentAngularVelocity) > 0.1 || Mathf.Abs(targetAngle - currentAngle) > 0.01)
{
var springDamperResult = _angleSpringDamper.Calc(currentAngle, currentAngularVelocity, targetAngle, delta);
currentAngle = springDamperResult.Item1; if (Mathf.Abs(currentAngularVelocity) > 0.1 || Mathf.Abs(targetAngle - currentAngle) > 0.01)
currentAngularVelocity = springDamperResult.Item2; {
var springDamperResult =
EmitSignal("OrientationUpdated", this.currentAngle); _angleSpringDamper.Calc(currentAngle, currentAngularVelocity, targetAngle, delta);
}
if (( Mathf.Abs(currentAngularVelocity) < 5 && Mathf.Abs(targetAngle - currentAngle) < 0.3)
&& (targetPosition - currentPosition).LengthSquared() > 0.01)
{
var springDamperResult =
_positionSpringDamper.CalcClampedSpeed(currentPosition, currentVelocity, targetPosition, delta, maxSpeed);
currentPosition = springDamperResult.Item1; currentAngle = springDamperResult.Item1;
currentVelocity = springDamperResult.Item2; currentAngularVelocity = springDamperResult.Item2;
EmitSignal("PositionUpdated", currentPosition); EmitSignal("OrientationUpdated", this.currentAngle);
} }
if ((Mathf.Abs(currentAngularVelocity) < 5 && Mathf.Abs(targetAngle - currentAngle) < 0.3)
&& (targetPosition - currentPosition).LengthSquared() > 0.01)
{
var springDamperResult =
_positionSpringDamper.CalcClampedSpeed(currentPosition, currentVelocity, targetPosition, delta,
maxSpeed);
currentPosition = springDamperResult.Item1;
currentVelocity = springDamperResult.Item2;
EmitSignal("PositionUpdated", currentPosition);
}
} }
} }

21
components/WorldInfoComponent.cs Normal file
View File

@ -0,0 +1,21 @@
using Godot;
using System;
public class WorldInfoComponent : Node
{
[Export] public NodePath World;
private HexTile3D _currentHexTile3D;
public TileWorld TileWorld;
// Called when the node enters the scene tree for the first time.
public override void _Ready()
{
TileWorld = GetNode<TileWorld>(World);
}
public void SetWorld(TileWorld tileWorld)
{
TileWorld = tileWorld;
}
}

30
entities/Player.cs
View File

@ -3,8 +3,11 @@ using System;
public class Player : KinematicBody public class Player : KinematicBody
{ {
// other members
private MovableComponent _movable; private MovableComponent _movable;
private Spatial _geometry; private Spatial _geometry;
private WorldInfoComponent _worldInfo;
private Vector2 _offsetCoord = Vector2.Zero;
// Called when the node enters the scene tree for the first time. // Called when the node enters the scene tree for the first time.
public override void _Ready() public override void _Ready()
@ -17,17 +20,36 @@ public class Player : KinematicBody
} }
_geometry = (Spatial)FindNode("Geometry", false); _geometry = (Spatial)FindNode("Geometry", false);
_worldInfo = (WorldInfoComponent)FindNode("WorldInfo", false);
} }
private void OnPositionUpdated(Vector3 newPosition) public void OnPositionUpdated(Vector3 newPosition)
{ {
if (_worldInfo != null)
{
Vector2 new_offset_coord = _worldInfo.TileWorld.WorldToOffsetCoords(newPosition);
if (_offsetCoord != new_offset_coord)
{
GD.Print("New offset coord " + new_offset_coord);
_offsetCoord = new_offset_coord;
}
if (_movable != null)
{
_movable.targetPosition.y = _worldInfo.TileWorld.GetHeightAtOffset(new_offset_coord);
}
}
Transform transform = Transform; Transform transform = Transform;
transform.origin = newPosition; transform.origin = newPosition;
Transform = transform; Transform = transform;
} }
private void OnOrientationUpdated(float newOrientation) private void OnOrientationUpdated(float newOrientation)
{ {
_geometry.Transform = new Transform (new Quat(Vector3.Up, newOrientation), Vector3.Zero); _geometry.Transform = new Transform(new Quat(Vector3.Up, newOrientation), Vector3.Zero);
} }
} }

4
materials/UndefinedTile.tres Normal file
View File

@ -0,0 +1,4 @@
[gd_resource type="SpatialMaterial" format=2]
[resource]
albedo_color = Color( 1, 0, 1, 1 )

8
project.godot
View File

@ -9,17 +9,17 @@
config_version=4 config_version=4
_global_script_classes=[ { _global_script_classes=[ {
"base": "Node", "base": "Reference",
"class": "ClickableComponent", "class": "ClickableComponent",
"language": "GDScript", "language": "GDScript",
"path": "res://components/ClickableComponent.gd" "path": "res://components/ClickableComponent.gd"
}, { }, {
"base": "KinematicBody2D", "base": "Reference",
"class": "CollisionLine", "class": "CollisionLine",
"language": "GDScript", "language": "GDScript",
"path": "res://utils/CollisionLine.gd" "path": "res://utils/CollisionLine.gd"
}, { }, {
"base": "Node", "base": "Reference",
"class": "ColorComponent", "class": "ColorComponent",
"language": "GDScript", "language": "GDScript",
"path": "res://components/ColorComponent.gd" "path": "res://components/ColorComponent.gd"
@ -54,7 +54,7 @@ _global_script_classes=[ {
"language": "GDScript", "language": "GDScript",
"path": "res://utils/SpringDamper.gd" "path": "res://utils/SpringDamper.gd"
}, { }, {
"base": "Sprite", "base": "Reference",
"class": "TintedSpriteComponent", "class": "TintedSpriteComponent",
"language": "GDScript", "language": "GDScript",
"path": "res://components/TintedSpriteComponent.gd" "path": "res://components/TintedSpriteComponent.gd"

53
scenes/AdaptiveWorldStream.cs
View File

@ -1,6 +1,8 @@
using Godot; using Godot;
using System; using System;
using System.Diagnostics;
using System.Linq; using System.Linq;
using GoDotLog;
using Dictionary = Godot.Collections.Dictionary; using Dictionary = Godot.Collections.Dictionary;
using Array = Godot.Collections.Array; using Array = Godot.Collections.Array;
@ -15,6 +17,7 @@ public class AdaptiveWorldStream : Spatial
private Label _mouseTileLabel; private Label _mouseTileLabel;
private Label _numCoordsAddedLabel; private Label _numCoordsAddedLabel;
private Label _numCoordsRemovedLabel; private Label _numCoordsRemovedLabel;
private TextureRect _worldTextureRect;
// scene nodes // scene nodes
private Spatial _tileHighlight; private Spatial _tileHighlight;
@ -23,6 +26,7 @@ public class AdaptiveWorldStream : Spatial
private Area _streamContainerArea; private Area _streamContainerArea;
private Spatial _streamContainerActiveTiles; private Spatial _streamContainerActiveTiles;
private Player _player; private Player _player;
private TileWorld _tileWorld;
// Resources // Resources
private PackedScene _tileHighlightScene; private PackedScene _tileHighlightScene;
@ -45,6 +49,7 @@ public class AdaptiveWorldStream : Spatial
_mouseTileLabel = GetNode<Label>("Control/HBoxContainer/GridContainer/mouse_tile_label"); _mouseTileLabel = GetNode<Label>("Control/HBoxContainer/GridContainer/mouse_tile_label");
_numCoordsAddedLabel = GetNode<Label>("Control/HBoxContainer/GridContainer/num_coords_added_label"); _numCoordsAddedLabel = GetNode<Label>("Control/HBoxContainer/GridContainer/num_coords_added_label");
_numCoordsRemovedLabel = GetNode<Label>("Control/HBoxContainer/GridContainer/num_coords_removed_label"); _numCoordsRemovedLabel = GetNode<Label>("Control/HBoxContainer/GridContainer/num_coords_removed_label");
_worldTextureRect = GetNode<TextureRect>("Control/WorldTextureRect");
// scene nodes // scene nodes
_tileHighlight = GetNode<Spatial>("TileHighlight"); _tileHighlight = GetNode<Spatial>("TileHighlight");
@ -53,6 +58,9 @@ public class AdaptiveWorldStream : Spatial
_streamContainerArea = GetNode<Area>("StreamContainer/Area"); _streamContainerArea = GetNode<Area>("StreamContainer/Area");
_streamContainerActiveTiles = GetNode<Spatial>("StreamContainer/ActiveTiles"); _streamContainerActiveTiles = GetNode<Spatial>("StreamContainer/ActiveTiles");
_player = GetNode<Player>("Player"); _player = GetNode<Player>("Player");
_tileWorld = GetNode<TileWorld>("TileWorld");
Debug.Assert(_tileWorld != null);
// resources // resources
_tileHighlightScene = GD.Load<PackedScene>("utils/TileHighlight.tscn"); _tileHighlightScene = GD.Load<PackedScene>("utils/TileHighlight.tscn");
@ -63,10 +71,23 @@ public class AdaptiveWorldStream : Spatial
_currentTileOffset = new Vector2(); _currentTileOffset = new Vector2();
_hexGrid = new HexGrid(); _hexGrid = new HexGrid();
// update data
_worldTextureRect.RectSize = _tileWorld.Size;
// connect signals // connect signals
_streamContainerArea.Connect("input_event", this, nameof(OnAreaInputEvent)); _streamContainerArea.Connect("input_event", this, nameof(OnAreaInputEvent));
_streamContainer.Connect("TileSelected", this, nameof(OnTileSelected)); _streamContainer.Connect("TileSelected", this, nameof(OnTileSelected));
_tileWorld.Connect("WorldGenerated", this, nameof(OnWorldGenerated));
// perform dependency injection
//_streamContainer.SetWorld(_tileWorld);
WorldInfoComponent worldInfoComponent = _player.GetNode<WorldInfoComponent>("WorldInfo");
if (worldInfoComponent != null)
{
worldInfoComponent.SetWorld(_tileWorld);
}
_tileWorld.Generate();
UpdateCurrentTile(); UpdateCurrentTile();
_streamContainer.SetCenterTile(_currentTile); _streamContainer.SetCenterTile(_currentTile);
} }
@ -97,21 +118,21 @@ public class AdaptiveWorldStream : Spatial
Transform playerTransform = _player.Transform; Transform playerTransform = _player.Transform;
Vector3 playerCoord = playerTransform.origin; Vector3 playerCoord = playerTransform.origin;
_currentTile = _hexGrid.GetHexAt(new Vector2(playerCoord.x, playerCoord.z)); _currentTile = _hexGrid.GetHexAt(new Vector2(playerCoord.x, playerCoord.z));
_tileLabel.Text = playerTransform.ToString(); _tileLabel.Text = playerTransform.ToString();
_tileOffsetLabel.Text = _currentTile.OffsetCoords.ToString(); _tileOffsetLabel.Text = _currentTile.OffsetCoords.ToString();
//playerTransform.origin += new Vector3(-0.1f, 0, 1) * delta;
_player.Transform = playerTransform; _player.Transform = playerTransform;
} }
public override void _Process(float delta) public override void _Process(float delta)
{ {
_framesPerSecondLabel.Text = Engine.GetFramesPerSecond().ToString(); _framesPerSecondLabel.Text = Engine.GetFramesPerSecond().ToString();
_lastTile = _currentTile; _lastTile = _currentTile;
UpdateCurrentTile(); UpdateCurrentTile();
Transform tileHighlightTransform = Transform.Identity; Transform tileHighlightTransform = Transform.Identity;
Vector2 currentTileCenter = _hexGrid.GetHexCenter(_currentTile); Vector2 currentTileCenter = _hexGrid.GetHexCenter(_currentTile);
tileHighlightTransform.origin.x = currentTileCenter.x; tileHighlightTransform.origin.x = currentTileCenter.x;
@ -121,7 +142,6 @@ public class AdaptiveWorldStream : Spatial
if (_currentTile.CubeCoords != _lastTile.CubeCoords) if (_currentTile.CubeCoords != _lastTile.CubeCoords)
{ {
_streamContainer.SetCenterTile(_currentTile); _streamContainer.SetCenterTile(_currentTile);
// CreateStreamActiveTiles();
_numTilesLabel.Text = _streamContainerActiveTiles.GetChildCount().ToString(); _numTilesLabel.Text = _streamContainerActiveTiles.GetChildCount().ToString();
_numCoordsAddedLabel.Text = _streamContainer.AddedCoords.Count.ToString(); _numCoordsAddedLabel.Text = _streamContainer.AddedCoords.Count.ToString();
@ -129,7 +149,9 @@ public class AdaptiveWorldStream : Spatial
} }
} }
public void OnAreaInputEvent(Node camera, InputEvent inputEvent, Vector3 position, Vector3 normal, int shapeIndex)
public void OnAreaInputEvent(Node camera, InputEvent inputEvent, Vector3 position, Vector3 normal,
int shapeIndex)
{ {
HexCell cellAtCursor = _hexGrid.GetHexAt(new Vector2(position.x, position.z)); HexCell cellAtCursor = _hexGrid.GetHexAt(new Vector2(position.x, position.z));
Transform highlightTransform = Transform.Identity; Transform highlightTransform = Transform.Identity;
@ -140,15 +162,15 @@ public class AdaptiveWorldStream : Spatial
_mouseWorldLabel.Text = position.ToString(); _mouseWorldLabel.Text = position.ToString();
_mouseTileLabel.Text = cellAtCursor.OffsetCoords.ToString(); _mouseTileLabel.Text = cellAtCursor.OffsetCoords.ToString();
_mouseTileHighlight.Transform = highlightTransform; _mouseTileHighlight.Transform = highlightTransform;
if (inputEvent is InputEventMouseButton) if (inputEvent is InputEventMouseButton && ((InputEventMouseButton) inputEvent).Pressed)
{ {
_player.Transform = highlightTransform; _streamContainer.EmitSignal("TileSelected", _streamContainer.GetTile3dAt(cellAtCursor.OffsetCoords));
} }
} }
public void OnTileSelected(HexTile3D tile) public void OnTileSelected(HexTile3D tile)
{ {
if (_player == null) if (_player == null)
@ -164,4 +186,17 @@ public class AdaptiveWorldStream : Spatial
movableComponent.targetPosition = tile.Transform.origin; movableComponent.targetPosition = tile.Transform.origin;
} }
public void OnWorldGenerated()
{
GD.Print("Using new map");
ImageTexture new_world_texture = new ImageTexture();
_tileWorld.Heightmap.Unlock();
new_world_texture.CreateFromImage(_tileWorld.Heightmap);
_tileWorld.Heightmap.Lock();
_worldTextureRect.Texture = new_world_texture;
}
} }

23
scenes/AdaptiveWorldStream.tscn
View File

@ -1,13 +1,14 @@
[gd_scene load_steps=14 format=2] [gd_scene load_steps=15 format=2]
[ext_resource path="res://scenes/AdaptiveWorldStream.cs" type="Script" id=1] [ext_resource path="res://scenes/AdaptiveWorldStream.cs" type="Script" id=1]
[ext_resource path="res://assets/CreatusPiratePack/characters/Pirate1final_0.01.glb" type="PackedScene" id=2] [ext_resource path="res://assets/CreatusPiratePack/characters/Pirate1final_0.01.glb" type="PackedScene" id=2]
[ext_resource path="res://scenes/World.gd" type="Script" id=3] [ext_resource path="res://components/WorldInfoComponent.cs" type="Script" id=3]
[ext_resource path="res://scenes/StreamContainer.cs" type="Script" id=4] [ext_resource path="res://scenes/StreamContainer.cs" type="Script" id=4]
[ext_resource path="res://entities/Player.cs" type="Script" id=5] [ext_resource path="res://entities/Player.cs" type="Script" id=5]
[ext_resource path="res://scenes/DebugCamera.gd" type="Script" id=6] [ext_resource path="res://scenes/DebugCamera.gd" type="Script" id=6]
[ext_resource path="res://utils/TileHighlight.tscn" type="PackedScene" id=7] [ext_resource path="res://utils/TileHighlight.tscn" type="PackedScene" id=7]
[ext_resource path="res://components/MovableComponent.cs" type="Script" id=8] [ext_resource path="res://components/MovableComponent.cs" type="Script" id=8]
[ext_resource path="res://scenes/TileWorld.cs" type="Script" id=9]
[sub_resource type="CubeMesh" id=1] [sub_resource type="CubeMesh" id=1]
size = Vector3( 1, 1, 1 ) size = Vector3( 1, 1, 1 )
@ -32,13 +33,14 @@ radial_segments = 16
script = ExtResource( 1 ) script = ExtResource( 1 )
[node name="TileHighlight" parent="." instance=ExtResource( 7 )] [node name="TileHighlight" parent="." instance=ExtResource( 7 )]
visible = false
[node name="MouseTileHighlight" parent="." instance=ExtResource( 7 )] [node name="MouseTileHighlight" parent="." instance=ExtResource( 7 )]
[node name="World" type="Spatial" parent="."] [node name="TileWorld" type="Spatial" parent="."]
script = ExtResource( 3 ) script = ExtResource( 9 )
[node name="DirectionalLight" type="DirectionalLight" parent="World"] [node name="DirectionalLight" type="DirectionalLight" parent="TileWorld"]
transform = Transform( 0.328059, -0.878387, 0.347583, 0, 0.367946, 0.929847, -0.944657, -0.305045, 0.120708, 0, 6.59293, 1.20265 ) transform = Transform( 0.328059, -0.878387, 0.347583, 0, 0.367946, 0.929847, -0.944657, -0.305045, 0.120708, 0, 6.59293, 1.20265 )
shadow_enabled = true shadow_enabled = true
directional_shadow_mode = 0 directional_shadow_mode = 0
@ -178,9 +180,16 @@ margin_right = 127.0
margin_bottom = 158.0 margin_bottom = 158.0
text = "0" text = "0"
[node name="WorldTextureRect" type="TextureRect" parent="Control"]
margin_left = 1.0
margin_top = 300.0
margin_right = 101.0
margin_bottom = 400.0
[node name="StreamContainer" type="Spatial" parent="."] [node name="StreamContainer" type="Spatial" parent="."]
script = ExtResource( 4 ) script = ExtResource( 4 )
Dimensions = Vector2( 18, 17 ) Dimensions = Vector2( 18, 17 )
World = NodePath("../TileWorld")
[node name="ActiveTiles" type="Spatial" parent="StreamContainer"] [node name="ActiveTiles" type="Spatial" parent="StreamContainer"]
@ -222,3 +231,7 @@ script = ExtResource( 8 )
[node name="Pirate1final_001" parent="Player/Geometry" instance=ExtResource( 2 )] [node name="Pirate1final_001" parent="Player/Geometry" instance=ExtResource( 2 )]
transform = Transform( 0.4, 0, 0, 0, 0.4, 0, 0, 0, 0.4, 0, 0, 0 ) transform = Transform( 0.4, 0, 0, 0, 0.4, 0, 0, 0, 0.4, 0, 0, 0 )
[node name="WorldInfo" type="Node" parent="Player"]
script = ExtResource( 3 )
World = NodePath("../../TileWorld")

47
scenes/HexTile3D.cs
View File

@ -4,37 +4,37 @@ public class HexTile3D : Spatial
{ {
public enum TileType public enum TileType
{ {
Undefined,
Sand, Sand,
Grass, Grass,
DeepGrass DeepGrass
} }
static public TileType[] ValidTileTypes = { TileType.Sand, TileType.Grass, TileType.DeepGrass }; static public TileType[] ValidTileTypes = { TileType.Sand, TileType.Grass, TileType.DeepGrass };
// scene nodes // scene nodes
private MeshInstance _mesh; private MeshInstance _mesh;
private Area _area; private Area _area;
// signals // signals
[Signal] [Signal]
delegate void TileSelected(HexTile3D tile3d); delegate void TileSelected(HexTile3D tile3d);
// other member variables // other member variables
private SpatialMaterial _undefinedMaterial;
private SpatialMaterial _sandMaterial; private SpatialMaterial _sandMaterial;
private SpatialMaterial _grassMaterial; private SpatialMaterial _grassMaterial;
private SpatialMaterial _deepGrassMaterial; private SpatialMaterial _deepGrassMaterial;
private SpatialMaterial _previousMaterial; private SpatialMaterial _previousMaterial;
private HexGrid _hexGrid; private HexGrid _hexGrid;
public HexCell Cell = new HexCell(); public HexCell Cell = new HexCell();
public bool IsMouseOver = false; public bool IsMouseOver = false;
public Vector2 OffsetCoords public Vector2 OffsetCoords
{ {
get get { return Cell.OffsetCoords; }
{
return Cell.OffsetCoords;
}
set set
{ {
@ -46,14 +46,12 @@ public class HexTile3D : Spatial
Transform = tile3dTransform; Transform = tile3dTransform;
} }
} }
private TileType _type; private TileType _type;
public TileType Type public TileType Type
{ {
get get { return _type; }
{
return _type;
}
set set
{ {
@ -61,11 +59,17 @@ public class HexTile3D : Spatial
switch (_type) switch (_type)
{ {
case TileType.Sand: _mesh.SetSurfaceMaterial(0, _sandMaterial); case TileType.Undefined:
_mesh.SetSurfaceMaterial(0, _undefinedMaterial);
break;
case TileType.Sand:
_mesh.SetSurfaceMaterial(0, _sandMaterial);
break; break;
case TileType.Grass: _mesh.SetSurfaceMaterial(0, _grassMaterial); case TileType.Grass:
_mesh.SetSurfaceMaterial(0, _grassMaterial);
break; break;
case TileType.DeepGrass: _mesh.SetSurfaceMaterial(0, _deepGrassMaterial); case TileType.DeepGrass:
_mesh.SetSurfaceMaterial(0, _deepGrassMaterial);
break; break;
default: default:
GD.Print("Invalid tile type: " + value.ToString()); GD.Print("Invalid tile type: " + value.ToString());
@ -78,7 +82,7 @@ public class HexTile3D : Spatial
{ {
_hexGrid = new HexGrid(); _hexGrid = new HexGrid();
} }
// Called when the node enters the scene tree for the first time. // Called when the node enters the scene tree for the first time.
public override void _Ready() public override void _Ready()
{ {
@ -89,15 +93,17 @@ public class HexTile3D : Spatial
_area.Connect("mouse_entered", this, nameof(OnAreaMouseEntered)); _area.Connect("mouse_entered", this, nameof(OnAreaMouseEntered));
_area.Connect("mouse_exited", this, nameof(OnAreaMouseExited)); _area.Connect("mouse_exited", this, nameof(OnAreaMouseExited));
_undefinedMaterial = GD.Load<SpatialMaterial>("res://materials/UndefinedTile.tres");
_sandMaterial = GD.Load<SpatialMaterial>("res://materials/SandTile.tres"); _sandMaterial = GD.Load<SpatialMaterial>("res://materials/SandTile.tres");
_grassMaterial = GD.Load<SpatialMaterial>("res://materials/GrassTile.tres"); _grassMaterial = GD.Load<SpatialMaterial>("res://materials/GrassTile.tres");
_deepGrassMaterial = GD.Load<SpatialMaterial>("res://materials/DeepGrassTile.tres"); _deepGrassMaterial = GD.Load<SpatialMaterial>("res://materials/DeepGrassTile.tres");
this.Type = TileType.Grass; this.Type = TileType.Undefined;
} }
public void OnAreaInputEvent(Node camera, InputEvent inputEvent, Vector3 position, Vector3 normal, int shapeIndex) public void OnAreaInputEvent(Node camera, InputEvent inputEvent, Vector3 position, Vector3 normal,
int shapeIndex)
{ {
if (IsMouseOver && inputEvent is InputEventMouseButton) if (IsMouseOver && inputEvent is InputEventMouseButton)
{ {
@ -124,11 +130,10 @@ public class HexTile3D : Spatial
IsMouseOver = false; IsMouseOver = false;
_mesh.MaterialOverride = _previousMaterial; _mesh.MaterialOverride = _previousMaterial;
} }
// // Called every frame. 'delta' is the elapsed time since the previous frame. // // Called every frame. 'delta' is the elapsed time since the previous frame.
// public override void _Process(float delta) // public override void _Process(float delta)
// { // {
// //
// } // }
} }

2
scenes/HexTile3D.tscn
View File

@ -1,7 +1,7 @@
[gd_scene load_steps=5 format=2] [gd_scene load_steps=5 format=2]
[ext_resource path="res://scenes/HexTile3D.cs" type="Script" id=1] [ext_resource path="res://scenes/HexTile3D.cs" type="Script" id=1]
[ext_resource path="res://materials/DeepGrassTile.tres" type="Material" id=2] [ext_resource path="res://materials/UndefinedTile.tres" type="Material" id=2]
[sub_resource type="CylinderMesh" id=6] [sub_resource type="CylinderMesh" id=6]
top_radius = 0.5 top_radius = 0.5

53
scenes/StreamContainer.cs
View File

@ -5,30 +5,29 @@ using System.Diagnostics;
using System.Linq; using System.Linq;
using GoDotLog; using GoDotLog;
//using Dictionary = Godot.Collections.Dictionary;
public class StreamContainer : Spatial public class StreamContainer : Spatial
{ {
// scene nodes // scene nodes
private MeshInstance _bounds; private MeshInstance _bounds;
private Spatial _activeTiles; private Spatial _activeTiles;
private Queue<HexTile3D> _unusedTiles; private Queue<HexTile3D> _unusedTiles;
private TileWorld _tileWorld;
// resources // resources
private PackedScene _hexTileScene = GD.Load<PackedScene>("res://scenes/HexTile3D.tscn"); private PackedScene _hexTileScene = GD.Load<PackedScene>("res://scenes/HexTile3D.tscn");
// exports // exports
[Export] public Vector2 Dimensions = new Vector2(8, 4); [Export] public Vector2 Dimensions = new Vector2(8, 4);
[Export] public NodePath World;
[Signal] [Signal]
delegate void TileSelected(HexTile3D tile3d); delegate void TileSelected(HexTile3D tile3d);
// other members // other members
private Rect2 _worldRect; private Rect2 _worldRect;
private Rect2 _currentOffsetCoordRect; private Rect2 _currentOffsetCoordRect;
private Rect2 _oldOffsetCoordRect; private Rect2 _oldOffsetCoordRect;
private HexGrid _hexGrid; private HexGrid _hexGrid;
private Random _tileTypeRandom;
private Dictionary<Vector2, HexTile3D> _coordToTile = new Dictionary<Vector2, HexTile3D>(); private Dictionary<Vector2, HexTile3D> _coordToTile = new Dictionary<Vector2, HexTile3D>();
public List<Vector2> RemovedCoords = new List<Vector2>(); public List<Vector2> RemovedCoords = new List<Vector2>();
@ -39,19 +38,25 @@ public class StreamContainer : Spatial
get { return _currentOffsetCoordRect; } get { return _currentOffsetCoordRect; }
} }
public void SetWorld(TileWorld tileWorld)
{
_tileWorld = tileWorld;
}
// Called when the node enters the scene tree for the first time. // Called when the node enters the scene tree for the first time.
public override void _Ready() public override void _Ready()
{ {
_unusedTiles = new Queue<HexTile3D>(); _unusedTiles = new Queue<HexTile3D>();
_bounds = GetNode<MeshInstance>("Bounds"); _bounds = GetNode<MeshInstance>("Bounds");
_activeTiles = GetNode<Spatial>("ActiveTiles"); _activeTiles = GetNode<Spatial>("ActiveTiles");
_tileTypeRandom = new Random();
_hexGrid = new HexGrid(); _hexGrid = new HexGrid();
Transform boundsTransform = Transform.Identity; Transform boundsTransform = Transform.Identity;
boundsTransform = boundsTransform.Scaled(new Vector3(Dimensions.x, 1, Dimensions.y)); boundsTransform = boundsTransform.Scaled(new Vector3(Dimensions.x, 1, Dimensions.y));
_bounds.Transform = boundsTransform; _bounds.Transform = boundsTransform;
_tileWorld = GetNode<TileWorld>(World);
} }
@ -87,30 +92,30 @@ public class StreamContainer : Spatial
} }
} }
public void UpdateTileCache() public void UpdateTileCache()
{ {
RemovedCoords.Clear(); RemovedCoords.Clear();
AddedCoords.Clear(); AddedCoords.Clear();
_unusedTiles.Clear(); _unusedTiles.Clear();
Rect2 expandedRect = _currentOffsetCoordRect.Merge(_oldOffsetCoordRect).Grow(2); Rect2 expandedRect = _currentOffsetCoordRect.Merge(_oldOffsetCoordRect).Grow(2);
Rect2 clippedRect = _currentOffsetCoordRect.Clip(_oldOffsetCoordRect); Rect2 clippedRect = _currentOffsetCoordRect.Clip(_oldOffsetCoordRect);
MarkUnusedTiles(expandedRect, clippedRect); MarkUnusedTiles(expandedRect, clippedRect);
AddNewTiles(expandedRect, clippedRect); AddNewTiles(expandedRect, clippedRect);
foreach (HexTile3D tile3D in _unusedTiles.ToArray()) foreach (HexTile3D tile3D in _unusedTiles.ToArray())
{ {
RemovedCoords.Add(tile3D.OffsetCoords); RemovedCoords.Add(tile3D.OffsetCoords);
_activeTiles.RemoveChild(tile3D); _activeTiles.RemoveChild(tile3D);
tile3D.Disconnect("TileSelected", this, nameof(OnTileClicked)); tile3D.Disconnect("TileSelected", this, nameof(OnTileClicked));
tile3D.QueueFree(); tile3D.QueueFree();
} }
} }
public void MarkUnusedTiles(Rect2 expandedRect, Rect2 clippedRect) public void MarkUnusedTiles(Rect2 expandedRect, Rect2 clippedRect)
{ {
foreach (int coord_x in Enumerable.Range(Mathf.FloorToInt(expandedRect.Position.x) - 5, foreach (int coord_x in Enumerable.Range(Mathf.FloorToInt(expandedRect.Position.x) - 5,
Mathf.CeilToInt(expandedRect.Size.x) + 20)) Mathf.CeilToInt(expandedRect.Size.x) + 20))
@ -119,18 +124,19 @@ public class StreamContainer : Spatial
Mathf.CeilToInt(expandedRect.Size.y) + 20)) Mathf.CeilToInt(expandedRect.Size.y) + 20))
{ {
Vector2 coord = new Vector2(coord_x, coord_y); Vector2 coord = new Vector2(coord_x, coord_y);
if (clippedRect.HasPoint(coord)) if (clippedRect.HasPoint(coord))
{ {
continue; continue;
} }
bool isInCurrent = _currentOffsetCoordRect.HasPoint(coord); bool isInCurrent = _currentOffsetCoordRect.HasPoint(coord);
bool isInOld = _oldOffsetCoordRect.HasPoint(coord); bool isInOld = _oldOffsetCoordRect.HasPoint(coord);
if (isInOld && !isInCurrent && _coordToTile.Keys.Contains(coord)) if (isInOld && !isInCurrent && _coordToTile.Keys.Contains(coord))
{ {
HexTile3D tile3D = _coordToTile[coord]; HexTile3D tile3D = _coordToTile[coord];
tile3D.Type = HexTile3D.TileType.Undefined;
_unusedTiles.Enqueue(tile3D); _unusedTiles.Enqueue(tile3D);
_coordToTile.Remove(coord); _coordToTile.Remove(coord);
RemovedCoords.Add(coord); RemovedCoords.Add(coord);
@ -159,10 +165,15 @@ public class StreamContainer : Spatial
AddedCoords.Add(coord); AddedCoords.Add(coord);
HexTile3D tile3D = GetTile3dAt(coord); HexTile3D tile3D = GetTile3dAt(coord);
} }
else else
{ {
HexTile3D tile3D = _unusedTiles.Dequeue(); HexTile3D tile3D = _unusedTiles.Dequeue();
tile3D.OffsetCoords = coord; tile3D.OffsetCoords = coord;
tile3D.Type = _tileWorld.GetTileTypeAtOffset(coord);
Transform tileTransform = tile3D.Transform;
tileTransform.origin.y = _tileWorld.GetHeightAtOffset(coord);
tile3D.Transform = tileTransform;
_coordToTile[coord] = tile3D; _coordToTile[coord] = tile3D;
} }
} }
@ -180,10 +191,10 @@ public class StreamContainer : Spatial
tile3D.Connect("TileSelected", this, nameof(OnTileClicked)); tile3D.Connect("TileSelected", this, nameof(OnTileClicked));
Transform tileTransform = tile3D.Transform; Transform tileTransform = tile3D.Transform;
tileTransform.origin.y = GD.Randf() * 0.2f; tileTransform.origin.y = _tileWorld.GetHeightAtOffset(offsetCoords);
tile3D.Transform = tileTransform; tile3D.Transform = tileTransform;
tile3D.Type = _tileWorld.GetTileTypeAtOffset(offsetCoords);
tile3D.Type = HexTile3D.ValidTileTypes[_tileTypeRandom.Next(HexTile3D.ValidTileTypes.Length)];
_coordToTile[offsetCoords] = tile3D; _coordToTile[offsetCoords] = tile3D;
} }

125
scenes/TileWorld.cs Normal file
View File

@ -0,0 +1,125 @@
using Godot;
using System;
using System.Linq;
public class TileWorld : Spatial
{
// signals
[Signal]
delegate void WorldGenerated();
// public members
public Image Heightmap;
public Vector2 Size = new Vector2(100, 100);
public float HeightScale = 10;
// private members
private HexGrid _hexGrid;
private Random _tileTypeRandom;
// Called when the node enters the scene tree for the first time.
public override void _Ready()
{
_hexGrid = new HexGrid();
_tileTypeRandom = new Random();
}
public void Generate()
{
// GenerateSimpleMap();
GenerateNoiseMap();
EmitSignal("WorldGenerated");
}
private void GenerateSimpleMap()
{
Heightmap = new Image();
Heightmap.Create((int)Size.x, (int)Size.y, false, Image.Format.Rf);
Heightmap.Lock();
foreach (int coord_x in Enumerable.Range(0, (int)Size.x))
{
foreach (int coord_y in Enumerable.Range(0, (int)Size.y))
{
SetHeightAtOffset(new Vector2(coord_x, coord_y), 0.5f);
}
}
}
private void GenerateNoiseMap()
{
Heightmap = new Image();
Heightmap.Create((int)Size.x, (int)Size.y, false, Image.Format.Rf);
NoiseTexture noise_texture = new NoiseTexture();
OpenSimplexNoise noise_generator = new OpenSimplexNoise();
noise_generator.Seed = -1626828106;
noise_generator.Octaves = 3;
noise_generator.Period = 5;
noise_generator.Persistence = 0.5f;
noise_generator.Lacunarity = 2;
Heightmap.CopyFrom(noise_generator.GetImage((int)Size.x, (int)Size.y, null));
}
private void ApplyHeightMap()
{
}
public bool IsOffsetCoordValid(Vector2 offset_coord)
{
return ((int)Math.Clamp(offset_coord.x, 0, Size.x) == (int)offset_coord.x
&& (int)Math.Clamp(offset_coord.y, 0, Size.y) == (int)offset_coord.y);
}
public HexTile3D.TileType GetTileTypeAtOffset(Vector2 offset_coord)
{
if (!IsOffsetCoordValid(offset_coord))
{
return HexTile3D.TileType.Undefined;
}
return HexTile3D.ValidTileTypes[_tileTypeRandom.Next(HexTile3D.ValidTileTypes.Length)];
}
public void SetHeightAtOffset(Vector2 offset_coord, float height)
{
if (!IsOffsetCoordValid(offset_coord))
{
return;
}
Heightmap.SetPixel((int) offset_coord.x, (int) offset_coord.y, new Color(height / HeightScale, 0f, 0f));
}
public float GetHeightAtOffset(Vector2 offset_coord)
{
if (!IsOffsetCoordValid(offset_coord))
{
return -0.1f;
}
return Heightmap.GetPixel((int)offset_coord.x, (int)offset_coord.y).r * HeightScale - HeightScale * 0.5f ;
}
public Vector2 WorldToOffsetCoords(Vector3 world_coord)
{
return _hexGrid.GetHexAt(new Vector2(world_coord.x, world_coord.z)).OffsetCoords;
}
// // Called every frame. 'delta' is the elapsed time since the previous frame.
// public override void _Process(float delta)
// {
//
// }
}

18
tests/HexCellTests.cs
View File

@ -12,9 +12,9 @@ public class HexCellTests : TestClass
public void TestHexCellSimple() public void TestHexCellSimple()
{ {
HexCell cell = new HexCell(); HexCell cell = new HexCell();
Debug.Assert(cell.CubeCoords == new Vector3(0, 0, 0)); Debug.Assert(cell.CubeCoords == new Vector3(0, 0, 0));
} }
[Test] [Test]
public void TestAxialCoords() public void TestAxialCoords()
{ {
@ -26,7 +26,7 @@ public class HexCellTests : TestClass
cell = new HexCell(new Vector3(-1, 2, -1)); cell = new HexCell(new Vector3(-1, 2, -1));
HexCell otherCell = cell; HexCell otherCell = cell;
Debug.Assert(otherCell.AxialCoords == new Vector2(-1, 2)); Debug.Assert(otherCell.AxialCoords == new Vector2(-1, 2));
} }
[Test] [Test]
@ -38,7 +38,7 @@ public class HexCellTests : TestClass
cell = new HexCell(new Vector2(4.2f, -5.5f)); cell = new HexCell(new Vector2(4.2f, -5.5f));
Debug.Assert(cell.CubeCoords == new Vector3(4, -5, 1)); Debug.Assert(cell.CubeCoords == new Vector3(4, -5, 1));
} }
[Test] [Test]
public void TestConversion() public void TestConversion()
{ {
@ -53,7 +53,7 @@ public class HexCellTests : TestClass
HexCell cell = new HexCell(); HexCell cell = new HexCell();
Debug.Assert(cell.RoundCoords(new Vector3(0.1f, 0.5f, -0.6f)) == new Vector3(0, 1, -1)); Debug.Assert(cell.RoundCoords(new Vector3(0.1f, 0.5f, -0.6f)) == new Vector3(0, 1, -1));
Debug.Assert(cell.RoundCoords(new Vector3(-0.4f, -1.3f, 1.7f)) == new Vector3(-1, -1, 2)); Debug.Assert(cell.RoundCoords(new Vector3(-0.4f, -1.3f, 1.7f)) == new Vector3(-1, -1, 2));
Debug.Assert(cell.RoundCoords(new Vector2(-0.1f, 0.6f)) == new Vector3(0, 1, -1)); Debug.Assert(cell.RoundCoords(new Vector2(-0.1f, 0.6f)) == new Vector3(0, 1, -1));
Debug.Assert(cell.RoundCoords(new Vector2(4.2f, -5.5f)) == new Vector3(4, -5, 1)); Debug.Assert(cell.RoundCoords(new Vector2(4.2f, -5.5f)) == new Vector3(4, -5, 1));
} }
@ -62,7 +62,7 @@ public class HexCellTests : TestClass
public void TestCoords() public void TestCoords()
{ {
HexCell cell = new HexCell(); HexCell cell = new HexCell();
// from cubic positive // from cubic positive
cell.CubeCoords = new Vector3(2, 1, -3); cell.CubeCoords = new Vector3(2, 1, -3);
Debug.Assert(cell.CubeCoords == new Vector3(2, 1, -3)); Debug.Assert(cell.CubeCoords == new Vector3(2, 1, -3));
@ -74,7 +74,7 @@ public class HexCellTests : TestClass
Debug.Assert(cell.CubeCoords == new Vector3(2, 1, -3)); Debug.Assert(cell.CubeCoords == new Vector3(2, 1, -3));
Debug.Assert(cell.AxialCoords == new Vector2(2, 1)); Debug.Assert(cell.AxialCoords == new Vector2(2, 1));
Debug.Assert(cell.OffsetCoords == new Vector2(2, 2)); Debug.Assert(cell.OffsetCoords == new Vector2(2, 2));
// from offset negative // from offset negative
cell.OffsetCoords = new Vector2(-1, -2); cell.OffsetCoords = new Vector2(-1, -2);
Debug.Assert(cell.CubeCoords == new Vector3(-1, -1, 2)); Debug.Assert(cell.CubeCoords == new Vector3(-1, -1, 2));
@ -86,7 +86,7 @@ public class HexCellTests : TestClass
public void TestNearby() public void TestNearby()
{ {
HexCell cell = new HexCell(new Vector2(1, 2)); HexCell cell = new HexCell(new Vector2(1, 2));
// adjacent // adjacent
HexCell otherCell = cell.getAdjacent(HexCell.DIR_N); HexCell otherCell = cell.getAdjacent(HexCell.DIR_N);
Debug.Assert(otherCell.AxialCoords == new Vector2(1, 3)); Debug.Assert(otherCell.AxialCoords == new Vector2(1, 3));
@ -100,7 +100,7 @@ public class HexCellTests : TestClass
Debug.Assert(otherCell.AxialCoords == new Vector2(0, 2)); Debug.Assert(otherCell.AxialCoords == new Vector2(0, 2));
otherCell = cell.getAdjacent(HexCell.DIR_NW); otherCell = cell.getAdjacent(HexCell.DIR_NW);
Debug.Assert(otherCell.AxialCoords == new Vector2(0, 3)); Debug.Assert(otherCell.AxialCoords == new Vector2(0, 3));
// not really adjacent // not really adjacent
otherCell = cell.getAdjacent(new Vector3(-3, -3, 6)); otherCell = cell.getAdjacent(new Vector3(-3, -3, 6));
Debug.Assert(otherCell.AxialCoords == new Vector2(-2, -1)); Debug.Assert(otherCell.AxialCoords == new Vector2(-2, -1));

6
tests/HexGridTests.cs
View File

@ -14,10 +14,10 @@ public class HexGridTests : TestClass
HexGrid grid = new HexGrid(); HexGrid grid = new HexGrid();
float w = grid.HexSize.x; float w = grid.HexSize.x;
float h = grid.HexSize.y; float h = grid.HexSize.y;
Debug.Assert(grid.GetHexAt(new Vector2(0, 0)).AxialCoords == new Vector2(0, 0)); Debug.Assert(grid.GetHexAt(new Vector2(0, 0)).AxialCoords == new Vector2(0, 0));
Debug.Assert(grid.GetHexAt(new Vector2(w / 2 - 0.01f, 0)).AxialCoords == new Vector2(0, 0)); Debug.Assert(grid.GetHexAt(new Vector2(w / 2 - 0.01f, 0)).AxialCoords == new Vector2(0, 0));
Debug.Assert(grid.GetHexAt(new Vector2(w / 2 - 0.01f, -h/2)).AxialCoords == new Vector2(1, 0)); Debug.Assert(grid.GetHexAt(new Vector2(w / 2 - 0.01f, -h / 2)).AxialCoords == new Vector2(1, 0));
Debug.Assert(grid.GetHexAt(new Vector2(w / 2 - 0.01f, h/2)).AxialCoords == new Vector2(1, -1)); Debug.Assert(grid.GetHexAt(new Vector2(w / 2 - 0.01f, h / 2)).AxialCoords == new Vector2(1, -1));
} }
} }

64
utils/SpringDamper.cs
View File

@ -11,53 +11,53 @@ public class SpringDamper
public SpringDamper(float osc_freq = 1.0f, float osc_red = 0.1f, float osc_red_h = 1.0f) public SpringDamper(float osc_freq = 1.0f, float osc_red = 0.1f, float osc_red_h = 1.0f)
{ {
Debug.Assert(osc_red > 0.001 && osc_red < 0.999); Debug.Assert(osc_red > 0.001 && osc_red < 0.999);
omega = osc_freq * 2 * Mathf.Pi; omega = osc_freq * 2 * Mathf.Pi;
zeta = Mathf.Log(1.0f - osc_red) / (-omega * osc_red_h); zeta = Mathf.Log(1.0f - osc_red) / (-omega * osc_red_h);
} }
public (float, float) Calc(float x, float v, float xt, float h) public (float, float) Calc(float x, float v, float xt, float h)
{ {
float f = 1 + 2 * h * zeta * omega; float f = 1 + 2 * h * zeta * omega;
float oo = omega * omega; float oo = omega * omega;
float hoo = oo * h; float hoo = oo * h;
float hhoo = hoo * h; float hhoo = hoo * h;
float det_inv = 1.0f / (f + hhoo); float det_inv = 1.0f / (f + hhoo);
float det_x = f * x + h * v + hhoo * xt; float det_x = f * x + h * v + hhoo * xt;
float det_v = v + hoo * (xt - x); float det_v = v + hoo * (xt - x);
return (det_x * det_inv, det_v * det_inv); return (det_x * det_inv, det_v * det_inv);
} }
public (Vector3, Vector3) Calc(Vector3 x, Vector3 v, Vector3 xt, float h) public (Vector3, Vector3) Calc(Vector3 x, Vector3 v, Vector3 xt, float h)
{ {
float f = 1 + 2 * h * zeta * omega; float f = 1 + 2 * h * zeta * omega;
float oo = omega * omega; float oo = omega * omega;
float hoo = oo * h; float hoo = oo * h;
float hhoo = hoo * h; float hhoo = hoo * h;
float det_inv = 1.0f / (f + hhoo); float det_inv = 1.0f / (f + hhoo);
Vector3 det_x = f * x + h * v + hhoo * xt; Vector3 det_x = f * x + h * v + hhoo * xt;
Vector3 det_v = v + hoo * (xt - x); Vector3 det_v = v + hoo * (xt - x);
return (det_x * det_inv, det_v * det_inv); return (det_x * det_inv, det_v * det_inv);
} }
public (Vector3, Vector3) CalcClampedSpeed(Vector3 x, Vector3 v, Vector3 xt, float h, float speedMax) public (Vector3, Vector3) CalcClampedSpeed(Vector3 x, Vector3 v, Vector3 xt, float h, float speedMax)
{ {
var defaultResult = Calc(x, v, xt, h); var defaultResult = Calc(x, v, xt, h);
Vector3 x_new = defaultResult.Item1; Vector3 x_new = defaultResult.Item1;
Vector3 vel_new = (x_new - x) / h; Vector3 vel_new = (x_new - x) / h;
float speed_new = vel_new.Length(); float speed_new = vel_new.Length();
if (speed_new > speedMax) if (speed_new > speedMax)
{ {
vel_new = (vel_new / speed_new) * speedMax; vel_new = (vel_new / speed_new) * speedMax;
x_new = x + vel_new * h; x_new = x + vel_new * h;
} }
return (x_new, vel_new); return (x_new, vel_new);
} }
} }