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Views.fs
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namespace Examples.GeneticAlgorithm
open System
open Avalonia.Controls
open Avalonia.Controls.Primitives
open Avalonia.FuncUI
open Avalonia.FuncUI.DSL
open Avalonia.FuncUI.Types
open Avalonia.Layout
open Avalonia.FuncUI
open Avalonia.Media
open Avalonia.Media.Immutable
open Examples.GeneticAlgorithm.Lib
type StateStore =
{ Random: Random
ShowHeatMap: IWritable<bool>
Worlds: IWritable<World list>
Squirrels: IWritable<SimulationResult list>
SelectedSquirrelId: IWritable<Guid option>
SelectedSquirrel: IWritable<SimulationResult option>
SelectedWorldResultIdx: IWritable<int>
SelectedWorldResult: IReadable<IndividualWorldResult option>
SelectedGameStateIdx: IWritable<int>
SelectedGameState: IReadable<GameState option> }
member this.NextGeneration () : unit =
let brains =
this.Squirrels.Current
|> List.map (fun squirrel -> squirrel.brain)
let brains = Population.mutateBrains(this.Random, brains)
let generation = Population.simulateGeneration this.Worlds.Current brains
this.Squirrels.Set (List.ofSeq generation)
member this.NextGenerations (count: int) : unit =
for _ = 1 to count do
this.NextGeneration ()
static member Init () =
let seed = Random 42
let worlds = WorldGeneration.makeWorlds(seed, 10)
let firstGeneration = Population.simulateFirstGeneration worlds seed
let showHeatMap: IWritable<bool> = new State<bool>(false) :> _
let worlds: IWritable<World list> = new State<World list>(List.ofSeq worlds) :> _
let population: IWritable<SimulationResult list> = new State<_>(List.ofSeq firstGeneration) :> _
let selectedSimulationResultId: IWritable<Guid option> = new State<_>(None) :> _
let selectedSimulationResult: IWritable<SimulationResult option> =
population
|> State.tryFindByKey (fun c -> Some c.identity) selectedSimulationResultId
let selectedWorldIdx: IWritable<int> = new State<int>(0) :> _
let selectedGameStateIdx: IWritable<int> = new State<int>(0) :> _
let selectedWorld: IReadable<IndividualWorldResult option> =
selectedSimulationResult
|> State.readMap (fun c ->
c
|> Option.map (fun c -> c.results)
|> Option.defaultValue List.empty
|> List.mapi (fun idx v -> (idx, v))
)
|> State.readTryFindByKey (fun (idx, _) -> idx) selectedWorldIdx
|> State.readMap (fun world ->
world
|> Option.map snd
)
let selectedGameState: IReadable<GameState option> =
selectedWorld
|> State.readMap (fun world ->
world
|> Option.map (fun result ->
result.states
|> List.mapi (fun idx v -> (idx, v))
)
|> Option.defaultValue List.empty
)
|> State.readTryFindByKey (fun (idx, _) -> idx) selectedGameStateIdx
|> State.readMap (fun gameState ->
printfn $"game state changed {gameState}"
gameState
|> Option.map snd
)
{ Random = seed
ShowHeatMap = showHeatMap
Worlds = worlds
Squirrels = population
SelectedSquirrelId = selectedSimulationResultId
SelectedSquirrel = selectedSimulationResult
SelectedWorldResultIdx = selectedWorldIdx
SelectedWorldResult = selectedWorld
SelectedGameStateIdx = selectedGameStateIdx
SelectedGameState = selectedGameState }
[<RequireQualifiedAccess>]
module StateStore =
let shared = StateStore.Init ()
[<AbstractClass; Sealed>]
type Views =
static member brainView () =
Component.create ("side-panel", fun ctx ->
let brain =
StateStore.shared.SelectedSquirrel
|> State.readMap (fun squirrel ->
squirrel
|> Option.map (fun squirrel -> squirrel.brain.genes)
|> Option.map (fun genes ->
let geneNames = [
"Doggo"
"Acorn"
"Rabbit"
"Tree"
"Squirrel"
"NextToDoggo"
"NextToRabbit"
]
(genes, geneNames)
||> List.map2 (fun (gene: double) (name: string) -> (name, gene))
)
)
|> ctx.usePassedRead
StackPanel.create [
StackPanel.spacing 10.0
StackPanel.orientation Orientation.Vertical
StackPanel.children [
match brain.Current with
| Some brain ->
for name, gene in brain do
TextBlock.create [
TextBlock.text name
]
ProgressBar.create [
ProgressBar.value gene
ProgressBar.maximum 1.0
ProgressBar.minimum -1.0
]
| None ->
TextBlock.create [
TextBlock.text "No squirrel/brain selected"
]
]
]
:> IView
)
static member sidePanelView () =
Component.create ("side-panel", fun ctx ->
let showHeatMap = ctx.usePassed StateStore.shared.ShowHeatMap
let population = ctx.usePassed StateStore.shared.Squirrels
let selectedId = ctx.usePassed StateStore.shared.SelectedSquirrelId
let selectedSquirrel = ctx.usePassed StateStore.shared.SelectedSquirrel
let selectedWorldIdx = ctx.usePassed StateStore.shared.SelectedWorldResultIdx
StackPanel.create [
StackPanel.spacing 10.0
StackPanel.margin (10.0, 10.0)
StackPanel.orientation Orientation.Vertical
StackPanel.children [
(* Next Generation *)
Button.create [
Button.content "Next Generation"
Button.onClick (ignore >> StateStore.shared.NextGeneration)
Button.horizontalAlignment HorizontalAlignment.Stretch
]
(* Next 10 Generation *)
Button.create [
Button.content "Next 10 Generation"
Button.onClick (fun _ -> StateStore.shared.NextGenerations 10)
Button.horizontalAlignment HorizontalAlignment.Stretch
]
(* Show Heat Map *)
CheckBox.create [
CheckBox.content "Show Heat Map"
CheckBox.isChecked showHeatMap.Current
CheckBox.onChecked (fun _args ->
showHeatMap.Set true
)
CheckBox.onUnchecked (fun _args ->
showHeatMap.Set false
)
CheckBox.horizontalAlignment HorizontalAlignment.Stretch
]
(* Population / Squirrel *)
ComboBox.create [
ComboBox.dataItems population.Current
ComboBox.itemTemplate (
DataTemplateView.create<_, _>(fun (data: SimulationResult) ->
TextBlock.create [
TextBlock.text $"Generation {data.brain.age} Score {data.totalScore}"
]
)
)
ComboBox.onSelectedIndexChanged (fun idx ->
population.Current
|> List.tryItem idx
|> Option.map (fun c -> c.identity)
|> selectedId.Set
)
ComboBox.horizontalAlignment HorizontalAlignment.Stretch
]
(* World *)
ComboBox.create [
ComboBox.dataItems (
selectedSquirrel.Current
|> Option.map (fun c -> c.results)
|> Option.defaultValue []
|> List.mapi (fun idx _ -> idx)
)
ComboBox.itemTemplate (
DataTemplateView.create<_, _>(fun (worldIdx: int) ->
TextBlock.create [
TextBlock.text $"World {worldIdx+1}"
]
)
)
ComboBox.onSelectedIndexChanged (fun idx ->
selectedWorldIdx.Set idx
)
ComboBox.horizontalAlignment HorizontalAlignment.Stretch
]
Views.brainView ()
]
]
:> IView
)
static member selectedGameStateView () =
Component.create ("selected-game-state", fun ctx ->
let squirrel = ctx.usePassedRead StateStore.shared.SelectedSquirrel
let gameState = ctx.usePassedRead StateStore.shared.SelectedGameState
let showHeatMap = ctx.usePassedRead StateStore.shared.ShowHeatMap
match gameState.Current, squirrel.Current with
| Some gameState, Some squirrel ->
let world = gameState.World
UniformGrid.create [
UniformGrid.columns world.MaxX
UniformGrid.rows world.MaxY
UniformGrid.background "#27ae60"
UniformGrid.children [
(* world cords state at 1 *)
for x = 1 to world.MaxX do
for y = 1 to world.MaxY do
let actor =
world.Actors
|> Array.tryFind (fun actor -> actor.Pos.X = x && actor.Pos.Y = y)
|> Option.map (fun actor -> actor.ActorKind)
let background =
if showHeatMap.Current then
let heat = Genes.evaluateTile squirrel.brain gameState.World (WorldPos.newPos x y)
ImmutableSolidColorBrush (Colors.White, 1.0 - float heat)
else
ImmutableSolidColorBrush (Colors.White, 0.0)
ContentControl.create [
ContentControl.row y
ContentControl.column x
ContentControl.margin 0.5
ContentControl.fontSize 24.0
ContentControl.verticalContentAlignment VerticalAlignment.Center
ContentControl.horizontalContentAlignment HorizontalAlignment.Center
ContentControl.background background
yield! [
match actor with
| Some ActorKind.Acorn ->
ContentControl.content "🌰"
| Some (ActorKind.Squirrel true) ->
ContentControl.content "🐿🌰"
| Some (ActorKind.Squirrel false) ->
ContentControl.content "🐿"
| Some ActorKind.Tree ->
ContentControl.content "🌲"
| Some ActorKind.Rabbit ->
ContentControl.content "🐇"
| Some ActorKind.Doggo ->
ContentControl.content "🐕"
| None ->
() //ContentControl.content ""
]
]
TextBlock.create [
TextBlock.text "Content"
]
]
] :> _
| _ ->
TextBlock.create [
TextBlock.text "No Game State Selected"
] :> _
)
static member simulationView () =
Component.create ("content-view", fun ctx ->
let worldResult = ctx.usePassedRead StateStore.shared.SelectedWorldResult
let gameStateIdx = ctx.usePassed StateStore.shared.SelectedGameStateIdx
match worldResult.Current with
| Some worldResult ->
DockPanel.create [
DockPanel.lastChildFill true
DockPanel.children [
DockPanel.create [
DockPanel.dock Dock.Bottom
DockPanel.children [
Slider.create [
Slider.dock Dock.Top
Slider.minimum (double 0)
Slider.maximum (double (worldResult.states.Length - 1))
Slider.tickFrequency (double 1)
Slider.value (double gameStateIdx.Current)
Slider.onValueChanged (fun value ->
gameStateIdx.Set (int value)
)
]
StackPanel.create [
StackPanel.dock Dock.Top
StackPanel.children [
TextBlock.create [
TextBlock.text $"world score: {worldResult.score}"
]
TextBlock.create [
TextBlock.text (
let state =
match int (List.last worldResult.states).SimState with
| 0 ->
"running"
| 1 ->
"won"
| 2 ->
"lost"
| _ ->
"unknown"
$"result: {state}"
)
]
]
]
]
]
Views.selectedGameStateView ()
]
] :> IView
| None ->
TextBlock.create [
TextBlock.text "No World Result Selected"
] :> IView
)
static member contentView () =
Component.create ("content-view", fun ctx ->
DockPanel.create [
DockPanel.lastChildFill true
DockPanel.children [
Views.simulationView ()
]
]
:> IView
)
static member mainView () =
Component (fun ctx ->
DockPanel.create [
DockPanel.lastChildFill true
DockPanel.children [
SplitView.create [
SplitView.isPaneOpen true
SplitView.displayMode SplitViewDisplayMode.CompactInline
SplitView.pane (
Views.sidePanelView ()
)
SplitView.content (
Views.contentView ()
)
]
]
]
:> IView
)