removed rotations and added the base for multi-gate selections

deploy.ts

@@ -1,8 +1,6 @@
 const { publish } = require('gh-pages')
 const { exec } = require('child_process')
 
-// const { publish } = require("gh-pages")
-
 const args = process.argv.splice(2)
 
 const mFlag = (args.indexOf('--message') + 1 || args.indexOf('-m') + 1) - 1

src/common/lang/arrays/helpers/setToArray.ts

@@ -0,0 +1,6 @@
+/**
+ * Transforms a set into an array
+ *
+ * @param set The set to convert
+ */
+export const setToArray = <T>(set: Set<T>) => Array.from(set.values())

src/modules/core/components/Canvas.tsx

@@ -3,7 +3,6 @@ import FluidCanvas from './FluidCanvas'
 import loop from 'mainloop.js'
 import { SimulationRenderer } from '../../simulationRenderer/classes/SimulationRenderer'
 import { renderSimulation } from '../../simulationRenderer/helpers/renderSimulation'
-import { updateSimulation } from '../../simulationRenderer/helpers/updateSimulation'
 import { rendererSubject } from '../subjects/rendererSubject'
 import { loadSubject } from '../subjects/loadedSubject'
 
@@ -21,7 +20,7 @@ class Canvas extends Component {
             if (this.renderingContext) {
                 renderSimulation(this.renderingContext, this.renderer)
             }
-        }).setUpdate(delta => updateSimulation(this.renderer, delta))
+        })
     }
 
     public componentDidMount() {

src/modules/core/components/FluidCanvas.tsx

@@ -2,15 +2,11 @@ import React, { RefObject, forwardRef, MouseEvent, WheelEvent } from 'react'
 import { useObservable } from 'rxjs-hooks'
 import { Screen } from '../classes/Screen'
 import { Subject } from 'rxjs'
-import { vector2 } from '../../../common/math/types/vector2'
+import { mouseButton } from '../types/mouseButton'
+import { MouseEventInfo } from './MouseEventInfo'
 
 const screen = new Screen()
 
-export interface MouseEventInfo {
-    position: vector2
-    button: number
-}
-
 export interface FluidCanvasProps {
     mouseDownOuput: Subject<MouseEventInfo>
     mouseUpOutput: Subject<MouseEventInfo>
@@ -21,7 +17,7 @@ export const getEventInfo = (
     e: MouseEvent<HTMLCanvasElement>
 ): MouseEventInfo => {
     return {
-        button: e.button,
+        button: e.button as mouseButton,
         position: [e.clientX, e.clientY]
     }
 }

src/modules/core/components/MouseEventInfo.tsx

@@ -0,0 +1,10 @@
+import { vector2 } from '../../../common/math/types/vector2'
+import { mouseButton } from '../types/mouseButton'
+
+/**
+ * The info about the mouse passed to mouse subjects
+ */
+export interface MouseEventInfo {
+    position: vector2
+    button: mouseButton
+}

src/modules/core/components/Sidebar.tsx

@@ -6,6 +6,7 @@ import CreateSimulationButton from './CreateSimulationButton'
 import LogicGates from './LogicGates'
 import { makeStyles, createStyles } from '@material-ui/core/styles'
 import Language from './Language'
+import SimulationActions from '../../simulation-actions/components/SimulationActions'
 /**
  * The width of the sidebar
  */
@@ -70,6 +71,7 @@ const Sidebar = () => {
                     <CreateSimulationButton />
                     <OpenSimulation />
                     <LogicGates />
+                    <SimulationActions />
                 </List>
 
                 <Language />

src/modules/core/types/MouseSubject.ts

@@ -1,4 +1,4 @@
 import { Subject } from 'rxjs'
-import { MouseEventInfo } from '../components/FluidCanvas'
+import { MouseEventInfo } from '../components/MouseEventInfo'
 
 export type MouseSubject = Subject<MouseEventInfo>

src/modules/core/types/mouseButton.ts

@@ -0,0 +1,4 @@
+/**
+ * All possibl values for the mouse button
+ */
+export type mouseButton = 0 | 1 | 2

src/modules/internalisation/translations/english.ts

@@ -9,6 +9,7 @@ export const EnglishTranslation: Translation = {
         createSimulation: 'Create simulation',
         logicGates: 'Logic gates',
         openSimulation: 'Open simulations',
+        simulation: 'Simulation',
         language: 'Language'
     },
     createSimulation: {
@@ -23,11 +24,22 @@ export const EnglishTranslation: Translation = {
             question: 'What do you want your simulation to be called?'
         }
     },
+    actions: {
+        save: 'Save',
+        clean: 'Clean',
+        clear: 'Clear',
+        refresh: 'Refresh',
+        undo: 'Undo'
+    },
     messages: {
         createdSimulation: name => `Succesfully created simulation '${name}'`,
         switchedToSimulation: name =>
             `Succesfully switched to simulation '${name}'`,
         savedSimulation: name => `Succesfully saved simulation '${name}'`,
-        compiledIc: name => `Succesfully compiled circuit '${name}'`
+        compiledIc: name => `Succesfully compiled circuit '${name}'`,
+        cleaned: name => `Succesfully cleaned simulation '${name}'`,
+        cleared: name => `Succesfully cleared simulation '${name}'`,
+        refreshed: name => `Succesfully refreshed simulation '${name}'`,
+        undone: name => `Succesfully undone simulation '${name}'`
     }
 }

src/modules/internalisation/translations/nederlands.ts

@@ -9,6 +9,7 @@ export const DutchTranslation: Translation = {
         createSimulation: 'Maak simulatie',
         logicGates: 'Logische poorten',
         openSimulation: 'Open simulatie',
+        simulation: 'Todo',
         language: 'Taal'
     },
     createSimulation: {

src/modules/internalisation/translations/romanian.ts

@@ -9,6 +9,7 @@ export const RomanianTranslation: Translation = {
         createSimulation: 'Creează o simulație',
         openSimulation: 'Deschide o simulație',
         logicGates: 'Porți logice',
+        simulation: 'Simulație',
         language: 'Limba'
     },
     createSimulation: {
@@ -23,6 +24,9 @@ export const RomanianTranslation: Translation = {
             question: 'Cum vrei să numești simulația?'
         }
     },
+    actions: {
+        save: 'Salvează'
+    },
     messages: {
         createdSimulation: name =>
             `Simulația '${name}' a fost creeată cu succes`,

src/modules/internalisation/types/TranslationInterface.ts

@@ -1,5 +1,6 @@
 import { supportedLanguage } from './supportedLanguages'
 import { simulationMode } from '../../saving/types/SimulationSave'
+import { possibleAction } from '../../simulation-actions/types/possibleAction'
 
 export type SentenceFactory<T extends string[]> = (...names: T) => string
 export type NameSentence = SentenceFactory<[string]>
@@ -13,6 +14,7 @@ export interface Translation {
         createSimulation: string
         openSimulation: string
         logicGates: string
+        simulation: string
         language: string
     }
     createSimulation: {
@@ -29,5 +31,10 @@ export interface Translation {
         switchedToSimulation: NameSentence
         savedSimulation: NameSentence
         compiledIc: NameSentence
+        refreshed: NameSentence
+        cleared: NameSentence
+        cleaned: NameSentence
+        undone: NameSentence
     }
+    actions: Record<possibleAction, string>
 }

src/modules/keybindings/constants.ts

@@ -1,4 +0,0 @@
-import { KeyBindingMap } from './types/KeyBindingMap'
-import { save } from '../saving/helpers/save'
-
-export const keyBindings: KeyBindingMap = []

src/modules/keybindings/helpers/initialiseKeyBindings.ts

@@ -1,9 +1,22 @@
-import { keyBindings } from '../constants'
 import { KeyboardInput } from '../classes/KeyboardInput'
-import { KeyBindingMap } from '../types/KeyBindingMap'
+import { KeyBindingMap, KeyBinding } from '../types/KeyBindingMap'
+import { SidebarActions } from '../../simulation-actions/constants'
+import { SidebarAction } from '../../simulation-actions/types/SidebarAction'
+import { modalIsOpen } from '../../modals/helpers/modalIsOpen'
 
 export const listeners: Record<string, KeyboardInput> = {}
 
+const keyBindings = Object.values(SidebarActions)
+    .filter(action => action.keybinding)
+    .map(
+        (action): KeyBinding => {
+            return {
+                actions: [action.action],
+                keys: action.keybinding || []
+            }
+        }
+    )
+
 export const initKeyBindings = (bindings: KeyBindingMap = keyBindings) => {
     const allKeys = new Set<string>()
 
@@ -18,6 +31,12 @@ export const initKeyBindings = (bindings: KeyBindingMap = keyBindings) => {
     }
 
     window.addEventListener('keydown', e => {
+        if (!modalIsOpen()) {
+            const current: {
+                keys: string[]
+                callback: Function
+            }[] = []
+
             for (const keyBinding of bindings) {
                 let done = false
 
@@ -32,12 +51,34 @@ export const initKeyBindings = (bindings: KeyBindingMap = keyBindings) => {
                     continue
                 }
 
+                current.push({
+                    keys: keyBinding.keys,
+                    callback: () => {
                         for (const action of keyBinding.actions) {
                             action()
                         }
+                    }
+                })
+            }
+
+            if (current.length) {
+                let maxIndex = 0
+                let max = current[0].keys.length
+
+                for (let index = 1; index < current.length; index++) {
+                    const element = current[index]
+
+                    if (element.keys.length > max) {
+                        max = element.keys.length
+                        maxIndex = index
+                    }
+                }
+
+                current[maxIndex].callback()
 
                 e.preventDefault()
                 e.stopPropagation()
             }
+        }
     })
 }

src/modules/saving/helpers/dumpSimulation.ts

@@ -8,7 +8,7 @@ import { SimulationRenderer } from '../../simulationRenderer/classes/SimulationR
 export const dumpSimulation = (renderer: SimulationRenderer) => {
     renderer.simulation.dispose()
     renderer.lastMousePosition = [0, 0]
-    renderer.selectedGate = null
+    renderer.selectedGates = new Set()
     renderer.selectedPins = {
         end: null,
         start: null

src/modules/simulation-actions/components/SimulationActions.tsx

@@ -0,0 +1,64 @@
+import React, { useState } from 'react'
+import ListItem from '@material-ui/core/ListItem'
+import ListItemIcon from '@material-ui/core/ListItemIcon'
+import ListItemText from '@material-ui/core/ListItemText'
+import Menu from '@material-ui/core/Menu'
+import MenuItem from '@material-ui/core/MenuItem'
+import Icon from '@material-ui/core/Icon'
+import { useTranslation } from '../../internalisation/helpers/useLanguage'
+import { SidebarActions } from '../constants'
+
+/**
+ * Component wich contains the sidebar 'Simulation' button
+ */
+const SimulationActions = () => {
+    const [anchorEl, setAnchorEl] = useState<null | HTMLElement>(null)
+
+    const translation = useTranslation()
+
+    const handleClose = () => {
+        setAnchorEl(null)
+    }
+
+    return (
+        <>
+            <ListItem
+                button
+                onClick={event => {
+                    setAnchorEl(event.currentTarget)
+                }}
+            >
+                <ListItemIcon>
+                    <Icon>insert_drive_file</Icon>
+                </ListItemIcon>
+                <ListItemText>{translation.sidebar.simulation}</ListItemText>
+            </ListItem>
+
+            <Menu
+                keepMounted
+                anchorEl={anchorEl}
+                open={Boolean(anchorEl)}
+                onClose={handleClose}
+            >
+                {Object.values(SidebarActions).map(
+                    ({ icon, name, keybinding, action }, index) => {
+                        return (
+                            <MenuItem key={index} onClick={action}>
+                                <ListItemIcon>
+                                    <Icon>{icon}</Icon>
+                                </ListItemIcon>
+
+                                <ListItemText
+                                    primary={name}
+                                    secondary={(keybinding || []).join(' + ')}
+                                />
+                            </MenuItem>
+                        )
+                    }
+                )}
+            </Menu>
+        </>
+    )
+}
+
+export default SimulationActions

src/modules/simulation-actions/constants.ts

@@ -0,0 +1,52 @@
+import { SidebarAction } from './types/SidebarAction'
+import { possibleAction } from './types/possibleAction'
+import { save } from '../saving/helpers/save'
+import { refresh } from './helpers/refresh'
+import { undo } from './helpers/undo'
+import { createActionConfig } from './helpers/createActionConfig'
+import { clear } from './helpers/clear'
+
+export const actionIcons: Record<possibleAction, string> = {
+    clean: 'layers_clear',
+    clear: 'clear',
+    refresh: 'refresh',
+    save: 'save',
+    undo: 'undo'
+}
+
+/**
+ * Array with all the actions for the SimulationAction component to render
+ */
+export const SidebarActions: Record<possibleAction, SidebarAction> = {
+    ...createActionConfig('save', save, ['ctrl', 's']),
+    ...createActionConfig(
+        'refresh',
+        {
+            run: refresh
+        },
+        ['ctrl', 'r']
+    ),
+    ...createActionConfig(
+        'undo',
+        {
+            run: undo
+        },
+        ['ctrl', 'z']
+    ),
+    ...createActionConfig(
+        'clear',
+        {
+            run: clear
+        },
+        ['ctrl', 'delete']
+    ),
+    ...createActionConfig(
+        'clean',
+        {
+            run: () => {
+                console.log('Cleaning')
+            }
+        },
+        ['ctrl', 'shift', 'delete']
+    )
+}

src/modules/simulation-actions/helpers/clear.ts

@@ -0,0 +1,12 @@
+import { SimulationRenderer } from '../../simulationRenderer/classes/SimulationRenderer'
+
+/**
+ * Clears the simuolation of a renderer
+ *
+ * @param renderer The renderer to clear the simulation of
+ */
+export const clear = (renderer: SimulationRenderer) => {
+    renderer.simulation.dispose()
+    renderer.simulation.wires = []
+    renderer.simulation.gates.clear()
+}

src/modules/simulation-actions/helpers/createActionConfig.ts

@@ -0,0 +1,44 @@
+import { possibleAction } from '../types/possibleAction'
+import { SidebarAction } from '../types/SidebarAction'
+import { actionIcons } from '../constants'
+import { createRendererAction } from './createRendererActions'
+import { SimulationRenderer } from '../../simulationRenderer/classes/SimulationRenderer'
+import { getRendererSafely } from '../../logic-gates/helpers/getRendererSafely'
+
+export type ActionConfigFunction = (renderer?: SimulationRenderer) => void
+
+export type ActionConfigCallback =
+    | {
+          renderer?: boolean
+          run: ActionConfigFunction
+      }
+    | ActionConfigFunction
+
+export const createActionConfig = <T extends possibleAction>(
+    name: T,
+    callback: ActionConfigCallback,
+    keybinding: string[] = []
+): Record<T, SidebarAction> => {
+    let action: ActionConfigFunction
+
+    if (callback instanceof Function) {
+        action = callback
+    } else {
+        if (callback.renderer !== false) {
+            action = createRendererAction(name, callback.run)
+        } else {
+            action = callback.run
+        }
+    }
+
+    return {
+        [name]: {
+            name,
+            action: () => {
+                action(getRendererSafely())
+            },
+            icon: actionIcons[name],
+            keybinding
+        }
+    }
+}

src/modules/simulation-actions/helpers/createRendererActions.ts

@@ -0,0 +1,41 @@
+import { possibleAction } from '../types/possibleAction'
+import { SimulationRenderer } from '../../simulationRenderer/classes/SimulationRenderer'
+import { CurrentLanguage } from '../../internalisation/stores/currentLanguage'
+import { getRendererSafely } from '../../logic-gates/helpers/getRendererSafely'
+import { createToastArguments } from '../../toasts/helpers/createToastArguments'
+import { actionIcons } from '../constants'
+import { toast } from 'react-toastify'
+import { Translation } from '../../internalisation/types/TranslationInterface'
+
+/**
+ * Map used to get the correct message from any action name
+ */
+export const actionToMessageMap: Record<
+    possibleAction,
+    keyof Translation['messages']
+> = {
+    clean: 'cleaned',
+    clear: 'cleared',
+    refresh: 'refreshed',
+    undo: 'undone',
+    save: 'savedSimulation'
+}
+
+export const createRendererAction = (
+    action: possibleAction,
+    callback: (renderer: SimulationRenderer) => void
+) => () => {
+    const translation = CurrentLanguage.getTranslation()
+    const renderer = getRendererSafely()
+
+    callback(renderer)
+
+    toast(
+        ...createToastArguments(
+            translation.messages[actionToMessageMap[action]](
+                renderer.simulation.name
+            ),
+            actionIcons[action]
+        )
+    )
+}

src/modules/simulation-actions/helpers/refresh.ts

@@ -0,0 +1,11 @@
+import { getRendererState } from '../../saving/helpers/getState'
+import { SimulationRenderer } from '../../simulationRenderer/classes/SimulationRenderer'
+
+/**
+ * Refreshes a simulations
+ *
+ * @param renderer - the renderer to refresh
+ */
+export const refresh = (renderer: SimulationRenderer) => {
+    renderer.loadSave(getRendererState(renderer))
+}

src/modules/simulation-actions/helpers/undo.ts

@@ -0,0 +1,10 @@
+import { SimulationRenderer } from '../../simulationRenderer/classes/SimulationRenderer'
+
+/**
+ * Undoes a simulation
+ *
+ * @param renderer - the renderer to undo the simulation of
+ */
+export const undo = (renderer: SimulationRenderer) => {
+    renderer.reloadSave()
+}

src/modules/simulation-actions/types/SidebarAction.ts

@@ -0,0 +1,9 @@
+/**
+ * The interface for all the actions wvound to the Simulation button on the sidebar
+ */
+export interface SidebarAction {
+    name: string
+    icon: string
+    keybinding?: string[]
+    action: () => void
+}

src/modules/simulation-actions/types/possibleAction.ts

@@ -0,0 +1,4 @@
+/**
+ * Type repressenting al lpossible actions
+ */
+export type possibleAction = 'save' | 'clear' | 'clean' | 'refresh' | 'undo'

src/modules/simulation/classes/GateStorage.ts

@@ -1,18 +1,48 @@
 import { LruCacheNode } from '@eix-js/utils'
 import { Gate } from './Gate'
 
+/**
+ * The nodes used inside the gat storage
+ */
 export type GateNode = LruCacheNode<Gate>
 
+/**
+ * dequeue implementation with iteration support.
+ * Used to store the logic gates
+ */
 export class GateStorage {
+    /**
+     * The map containing all the hash - node pairs
+     */
     private hashMap = new Map<number, GateNode>()
+
+    /**
+     * The head of the dequeue
+     */
     private head = new LruCacheNode<Gate>(0, null)
+
+    /**
+     * The tail of the dequue
+     */
     private tail = new LruCacheNode<Gate>(0, null)
 
     public constructor() {
+        this.init()
+    }
+
+    /**
+     * Links the head to the tail
+     */
+    private init() {
         this.head.next = this.tail
         this.tail.previous = this.head
     }
 
+    /**
+     * Deletes a gate
+     *
+     * @param node The node to delete
+     */
     public delete(node: GateNode) {
         node.previous.next = node.next
         node.next.previous = node.previous
@@ -20,11 +50,22 @@ export class GateStorage {
         return this
     }
 
+    /**
+     * Adds a new hash - gate pair to the dequeue
+     *
+     * @param key The ket of the gate
+     * @param node The gate itself
+     */
     public set(key: number, node: GateNode) {
         this.hashMap.set(key, node)
         this.addToHead(node)
     }
 
+    /**
+     * Adds a node directly after head
+     *
+     * @param node The node to add
+     */
     public addToHead(node: GateNode) {
         node.next = this.head.next
         node.next.previous = node
@@ -34,24 +75,40 @@ export class GateStorage {
         return this
     }
 
+    /**
+     * Moves a node directly after the head
+     *
+     * @param node The node to move
+     */
     public moveOnTop(node: GateNode) {
         this.delete(node).addToHead(node)
 
         return this
     }
 
+    /**
+     * Gets a gate by its key
+     *
+     * @param key  The key of the gate
+     */
     public get(key: number) {
         const node = this.hashMap.get(key)
 
         return node
     }
 
+    /**
+     * Gets the first gate in the dequeue
+     */
     public first() {
         const first = this.head.next
 
-        return
+        return first
     }
 
+    /**
+     * Used for iterating over the dequeue
+     */
     public *[Symbol.iterator](): Iterator<Gate> {
         let last = this.tail
 
@@ -67,4 +124,13 @@ export class GateStorage {
             }
         }
     }
+
+    /**
+     * Deletes every gate in the dequeue
+     */
+    public clear() {
+        this.hashMap = new Map()
+
+        this.init()
+    }
 }

src/modules/simulationRenderer/classes/MouseVelocityManager.ts

@@ -1,89 +0,0 @@
-import { Singleton } from '@eix-js/utils'
-import { MouseSubject } from '../../core/types/MouseSubject'
-import { clamp } from '../../simulation/helpers/clamp'
-
-@Singleton
-export class MouseVelocityManager {
-    private history: number[] = []
-    private total = 0
-    private limit = 10
-    private lastPosition = 0
-    private lastDirection = 0
-    private minimumDifference = 10
-
-    private lastMove = performance.now()
-    private resetLimit = 500
-
-    // mouseMoveInput is optional because we want to be able to get
-    // the instance even if we don't have a subject
-    // (as long as we passed one the first time)
-    public constructor(public mouseMoveInput?: MouseSubject) {
-        if (this.mouseMoveInput) {
-            this.mouseMoveInput.subscribe(event => {
-                this.lastMove = performance.now()
-
-                const position = event.position[0]
-                const dx = position - this.lastPosition
-
-                if (Math.abs(dx) < this.minimumDifference) {
-                    this.lastPosition = position
-                    return
-                }
-
-                if (dx === 0) {
-                    this.lastDirection = 0
-                } else {
-                    this.lastDirection = Math.abs(dx) / dx
-                }
-
-                this.lastPosition = event.position[0]
-            })
-        } else {
-            throw new Error(
-                'You need to pass a MouseMoveInput the first time you instantiate this class!'
-            )
-        }
-    }
-
-    public getDirection() {
-        if (this.history.length) {
-            return clamp(-1, 1, this.total / this.history.length)
-        }
-        return 0
-    }
-
-    public update(maybeAgain = true) {
-        if (this.lastDirection === 0) {
-            return 0
-        }
-
-        if (
-            this.lastDirection !== 0 &&
-            performance.now() - this.lastMove > this.resetLimit
-        ) {
-            this.lastDirection = 0
-        }
-
-        this.history.push(this.lastDirection)
-
-        this.total += this.lastDirection
-
-        if (this.history.length > this.limit) {
-            const removed = this.history.shift()
-
-            if (removed !== undefined) {
-                this.total -= removed
-            }
-        }
-    }
-
-    public clear(value?: number) {
-        if (value) {
-            this.lastPosition = value
-        }
-        this.history = []
-        this.total = 0
-        this.lastMove = performance.now()
-        this.lastDirection = 0
-    }
-}

src/modules/simulationRenderer/classes/SimulationRenderer.ts

@@ -1,20 +1,18 @@
 import { Camera } from './Camera'
 import { Simulation } from '../../simulation/classes/Simulation'
 import { Subject } from 'rxjs'
-import { MouseEventInfo } from '../../core/components/FluidCanvas'
+import { MouseEventInfo } from '../../core/components/MouseEventInfo'
 import { pointInSquare } from '../../../common/math/helpers/pointInSquare'
 import { vector2 } from '../../../common/math/types/vector2'
-import { MouseVelocityManager } from './MouseVelocityManager'
 import { Screen } from '../../core/classes/Screen'
 import { relativeTo, add, invert } from '../../vector2/helpers/basic'
 import { SimulationRendererOptions } from '../types/SimulationRendererOptions'
-import { defaultSimulationRendererOptions } from '../constants'
+import { defaultSimulationRendererOptions, mouseButtons } from '../constants'
 import { getPinPosition } from '../helpers/pinPosition'
 import { pointInCircle } from '../../../common/math/helpers/pointInCircle'
 import { SelectedPins } from '../types/SelectedPins'
 import { Wire } from '../../simulation/classes/Wire'
 import { KeyBindingMap } from '../../keybindings/types/KeyBindingMap'
-import { save } from '../../saving/helpers/save'
 import { initKeyBindings } from '../../keybindings/helpers/initialiseKeyBindings'
 import { currentStore } from '../../saving/stores/currentStore'
 import { saveStore } from '../../saving/stores/saveStore'
@@ -30,6 +28,9 @@ import { dumpSimulation } from '../../saving/helpers/dumpSimulation'
 import { modalIsOpen } from '../../modals/helpers/modalIsOpen'
 import { SimulationError } from '../../errors/classes/SimulationError'
 import { deleteWire } from '../../simulation/helpers/deleteWire'
+import { RendererState } from '../../saving/types/SimulationSave'
+import { setToArray } from '../../../common/lang/arrays/helpers/setToArray'
+import { Selection } from '../types/Selection'
 
 export class SimulationRenderer {
     public mouseDownOutput = new Subject<MouseEventInfo>()
@@ -37,17 +38,16 @@ export class SimulationRenderer {
     public mouseMoveOutput = new Subject<MouseEventInfo>()
     public wheelOutput = new Subject<unknown>()
 
-    public selectedGate: number | null = null
+    public selectedGates = new Set<Selection>()
     public lastMousePosition: vector2 = [0, 0]
-    public movedSelection = false
     public options: SimulationRendererOptions
-    public mouseManager = new MouseVelocityManager(this.mouseMoveOutput)
     public screen = new Screen()
     public camera = new Camera()
 
     // first bit = dragging
-    // second bit = moving around
-    private mouseState = 0b00
+    // second bit = panning around
+    // third bit = selecting
+    private mouseState = 0b000
     private gateSelectionOffset: vector2 = [0, 0]
 
     // this is used for spawning gates
@@ -81,16 +81,18 @@ export class SimulationRenderer {
             for (let index = gates.length - 1; index >= 0; index--) {
                 const { transform, id, pins } = gates[index]
 
-                if (pointInSquare(worldPosition, transform)) {
-                    // run function
+                if (
+                    event.button === mouseButtons.drag &&
+                    pointInSquare(worldPosition, transform)
+                ) {
                     gates[index].onClick()
 
-                    this.mouseManager.clear(worldPosition[0])
-
                     this.mouseState |= 1
-                    this.movedSelection = false
 
-                    this.selectedGate = id
+                    this.selectedGates.add({
+                        id,
+                        permanent: false
+                    })
                     this.gateSelectionOffset = worldPosition.map(
                         (position, index) =>
                             position - transform.position[index]
@@ -100,9 +102,11 @@ export class SimulationRenderer {
 
                     if (gateNode) {
                         return this.simulation.gates.moveOnTop(gateNode)
+                    } else {
+                        throw new SimulationError(
+                            `Cannot find gate with id ${id}`
+                        )
                     }
-
-                    return
                 }
 
                 for (const pin of pins) {
@@ -145,7 +149,7 @@ export class SimulationRenderer {
                         ) {
                             this.selectedPins.start = null
                             this.selectedPins.end = null
-                        } else if ((pin.value.type & 0b10) >> 1) {
+                        } else if ((pin.value.type & 2) >> 1) {
                             this.selectedPins.start = {
                                 wrapper: pin,
                                 transform
@@ -167,22 +171,31 @@ export class SimulationRenderer {
                             this.selectedPins.start = null
                             this.selectedPins.end = null
                         }
+
+                        return
                     }
                 }
             }
 
+            if (event.button === mouseButtons.pan) {
                 this.mouseState |= 0b10
+            }
         })
 
-        this.mouseUpOutput.subscribe(event => {
-            if (this.selectedGate !== null) {
+        this.mouseUpOutput.subscribe(() => {
+            if (this.selectedGates.size) {
                 const selected = this.getSelected()
 
-                if (selected) {
-                    selected.transform.rotation = 0
+                for (const gate of selected) {
+                    gate.transform.rotation = 0
+                }
+
+                for (const selection of this.selectedGates.values()) {
+                    if (!selection.permanent) {
+                        this.selectedGates.delete(selection)
+                    }
                 }
 
-                this.selectedGate = null
                 this.mouseState &= 0
             }
 
@@ -194,18 +207,12 @@ export class SimulationRenderer {
 
             const worldPosition = this.camera.toWordPostition(event.position)
 
-            if (this.mouseState & 1 && this.selectedGate !== null) {
-                const gate = this.getGateById(this.selectedGate)
-
-                if (!gate || !gate.data) return
-
-                const transform = gate.data.transform
+            if (this.mouseState & 1 && this.selectedGates.size) {
+                for (const gate of this.getSelected()) {
+                    const { transform } = gate
 
                     transform.x = worldPosition[0] - this.gateSelectionOffset[0]
                     transform.y = worldPosition[1] - this.gateSelectionOffset[1]
-
-                if (!this.movedSelection) {
-                    this.movedSelection = true
                 }
             }
 
@@ -245,6 +252,11 @@ export class SimulationRenderer {
         }
     }
 
+    public loadSave(save: RendererState) {
+        this.simulation = fromSimulationState(save.simulation)
+        this.camera = fromCameraState(save.camera)
+    }
+
     public reloadSave() {
         try {
             const current = currentStore.get()
@@ -253,8 +265,7 @@ export class SimulationRenderer {
             if (!save) return
             if (!(save.simulation || save.camera)) return
 
-            this.simulation = fromSimulationState(save.simulation)
-            this.camera = fromCameraState(save.camera)
+            this.loadSave(save)
         } catch (e) {
             throw new Error(
                 `An error occured while loading the save: ${
@@ -266,28 +277,17 @@ export class SimulationRenderer {
 
     private initKeyBindings() {
         const bindings: KeyBindingMap = [
-            {
-                keys: ['ctrl', 's'],
-                actions: [() => save(this)]
-            },
             {
                 keys: ['delete'],
                 actions: [
                     () => {
-                        const selected = this.getSelected()
+                        for (const gate of this.getSelected()) {
+                            const node = this.simulation.gates.get(gate.id)
 
-                        if (!selected) {
-                            return
-                        }
-
-                        const node = this.simulation.gates.get(selected.id)
-
-                        if (!node) {
-                            return
-                        }
+                            if (!node) continue
 
                             for (const wire of this.simulation.wires) {
-                            if (wireConnectedToGate(selected, wire)) {
+                                if (wireConnectedToGate(gate, wire)) {
                                     wire.dispose()
                                 }
                             }
@@ -296,9 +296,10 @@ export class SimulationRenderer {
                                 wire => wire.active
                             )
 
-                        selected.dispose()
+                            gate.dispose()
                             this.simulation.gates.delete(node)
                         }
+                    }
                 ]
             }
         ]
@@ -310,13 +311,25 @@ export class SimulationRenderer {
         return this.simulation.gates.get(id)
     }
 
+    /**
+     * Gets all selected gates in the simulation
+     *
+     * @throws SimulationError if an id isnt valid
+     * @throws SimulationError if the id doesnt have a data prop
+     */
     public getSelected() {
-        if (this.selectedGate === null) return null
+        return setToArray(this.selectedGates).map(({ id }) => {
+            const gate = this.simulation.gates.get(id)
 
-        const gate = this.getGateById(this.selectedGate)
-
-        if (!gate || !gate.data) return null
+            if (!gate) {
+                throw new SimulationError(`Cannot find gate with id ${id}`)
+            } else if (!gate.data) {
+                throw new SimulationError(
+                    `Cannot find data of gate with id ${id}`
+                )
+            }
 
             return gate.data
+        })
     }
 }

src/modules/simulationRenderer/constants.ts

@@ -1,5 +1,6 @@
 import { SimulationRendererOptions } from './types/SimulationRendererOptions'
 import { vector2 } from '../../common/math/classes/Transform'
+import { mouseButton } from '../core/types/mouseButton'
 
 export const defaultSimulationRendererOptions: SimulationRendererOptions = {
     dnd: {
@@ -30,3 +31,13 @@ export const defaultSimulationRendererOptions: SimulationRendererOptions = {
 }
 
 export const imageQuality: vector2 = [100, 100]
+
+export const mouseButtons: Record<
+    'zoom' | 'pan' | 'drag' | 'select',
+    mouseButton
+> = {
+    zoom: 1,
+    drag: 0,
+    pan: 0,
+    select: 2
+}

src/modules/simulationRenderer/helpers/renderGate.ts

@@ -13,7 +13,7 @@ export const renderGate = (
 ) => {
     renderPins(ctx, renderer, gate)
 
-    if (renderer.selectedGate === gate.id) {
+    if (renderer.selectedGates.has(gate.id)) {
         ctx.strokeStyle = renderer.options.gates.gateStroke.active
     } else {
         ctx.strokeStyle = renderer.options.gates.gateStroke.normal

src/modules/simulationRenderer/helpers/scaleCanvas.ts

@@ -2,7 +2,7 @@ import { Screen } from '../../core/classes/Screen'
 import { clamp } from '../../simulation/helpers/clamp'
 import { Camera } from '../classes/Camera'
 import { vector2 } from '../../../common/math/classes/Transform'
-import { MouseEventInfo } from '../../core/components/FluidCanvas'
+import { MouseEventInfo } from '../../core/components/MouseEventInfo'
 // import { WheelEvent } from 'react'
 
 const screen = new Screen()

src/modules/simulationRenderer/helpers/updateSimulation.ts

@@ -1,19 +0,0 @@
-import { SimulationRenderer } from '../classes/SimulationRenderer'
-
-export const updateSimulation = (
-    renderer: SimulationRenderer,
-    delta: number
-) => {
-    const selected = renderer.getSelected()
-
-    if (selected && renderer.movedSelection) {
-        renderer.mouseManager.update()
-        selected.transform.rotation =
-            renderer.mouseManager.getDirection() * renderer.options.dnd.rotation
-    } else {
-        if (selected) {
-            selected.transform.rotation = 0
-        }
-        renderer.mouseManager.update()
-    }
-}

src/modules/simulationRenderer/types/Selection.ts

@@ -0,0 +1,4 @@
+export interface Selection {
+    id: number
+    permanent: boolean
+}