From: Rubén Beltrán del Río Date: Mon, 23 Apr 2018 10:13:08 +0000 (-0500) Subject: Add control via keyboard (#6) X-Git-Url: https://git.r.bdr.sh/rbdr/sumo/commitdiff_plain/7ade6f8d96825386bf2e89dea51f9297cbac8e9c?ds=sidebyside Add control via keyboard (#6) * Correct angle documentation * Correct body component doc * Add a config module with px 2 meters * Create component to map input * Add components for mappable actions * Add component for elastic manipulation * Add node to modify physics * Add controllable node * Add dasher node * Add control mapper system * Add component to limit velocity * Add node for limiting velocity * Add systems to move and dash * Use meters in physics systems * Correct documentation in render system * Add elastic manipulation system * Update factories to use new components * Update main app to use new systems * Ignore dist dir * Also ignore cache * Ignore personal configuration files * Add system to reduce velocity * Add changelog --- diff --git a/.gitignore b/.gitignore index 09b28ab..b59ad82 100644 --- a/.gitignore +++ b/.gitignore @@ -60,4 +60,8 @@ typings/ .DS_Store # Generated assets -assets +dist +.cache + +# Personal config files +.rgignore diff --git a/CHANGELOG.md b/CHANGELOG.md index 10fc815..83de4a7 100644 --- a/CHANGELOG.md +++ b/CHANGELOG.md @@ -17,5 +17,6 @@ and this project adheres to [Semantic Versioning](http://semver.org/). - Pixi powered renderer system - Matter-js powered physics system - Scripts to setup hooks, linting, docs, and bundling +- Keyboard Support [Unreleased]: https://github.com/rbdr/sumo/compare/master...develop diff --git a/lib/components/angle.js b/lib/components/angle.js index 4de9764..65feeab 100644 --- a/lib/components/angle.js +++ b/lib/components/angle.js @@ -13,9 +13,9 @@ export default class AngleComponent extends Component { super(config); /** - * The properthy that holds the pixi container + * The properthy that holds the angle * - * @property {external:MatterJs.Angle} angle + * @property {number} angle * @instance * @memberof AngleComponent */ diff --git a/lib/components/body.js b/lib/components/body.js index 7438dc3..fc17e17 100644 --- a/lib/components/body.js +++ b/lib/components/body.js @@ -13,7 +13,7 @@ export default class BodyComponent extends Component { super(config); /** - * The properthy that holds the pixi container + * The properthy that holds the matterjs body * * @property {external:MatterJs.Body} body * @instance diff --git a/lib/components/control_map.js b/lib/components/control_map.js new file mode 100644 index 0000000..cb447d0 --- /dev/null +++ b/lib/components/control_map.js @@ -0,0 +1,57 @@ +import { Component } from '@serpentity/serpentity'; + +/** + * The contorl mapping object, holds a source and target for the action. + * + * @typedef tControlMap + * @type object + * + * @property {tControlSource} source the source input for the action + * @property {tControlTarget} target the target property for the action + */ + +/** + * The definition of an input source + * + * @typedef tControlSource + * @type object + * + * @property {string} type type of input, can be keyboard or gamepad (only keyboard supported atm) + * @property {number} gamepadNumber the number of gamepad to use (unsupported) + * @property {string} gamepadInputSource either axes or buttons + * @property {number} index the input index or keycode + */ + +/** + * The definition of an input target + * + * @typedef tControlTarget + * @type object + * + * @property {external:Serpentity:Component} component the component affected by this + * @property {string} property property to affect. For nested properties use dot.notation + * @property {[function]} value a function that takes in the input and outputs a transformed value + */ + +/** + * Component that stores the state of motion controls to properties + * + * @extends {external:Serpentity.Component} + * @class ControlMapComponent + * @param {object} config a configuration object to extend. + */ +export default class ControlMapComponent extends Component { + constructor(config) { + + super(config); + + /** + * The map of actions and controls. An array of mappings + * + * @property {Array} map + * @instance + * @memberof ControlMapComponent + */ + this.map = this.map || []; + } +}; diff --git a/lib/components/dash.js b/lib/components/dash.js new file mode 100644 index 0000000..de1fe2c --- /dev/null +++ b/lib/components/dash.js @@ -0,0 +1,51 @@ +import { Component } from '@serpentity/serpentity'; + +/** + * Component that stores a dash skill + * + * @extends {external:Serpentity.Component} + * @class DashComponent + * @param {object} config a configuration object to extend. + */ +export default class DashComponent extends Component { + constructor(config) { + + super(config); + + /** + * The properthy that holds the dash state + * + * @property {boolean} dashing + * @instance + * @memberof DashComponent + */ + this.dashing = this.dashing || false; + + /** + * Whether the dash is locked from occuring + * + * @property {boolean} locked + * @instance + * @memberof DashComponent + */ + this.locked = this.locked || false; + + /** + * Cooldown before lock is removed + * + * @property {number} cooldown + * @instance + * @memberof DashComponent + */ + this.cooldown = this.cooldown || 4000; + + /** + * Current cooldown + * + * @property {number} currentCooldown + * @instance + * @memberof DashComponent + */ + this.currentCooldown = 0; + } +}; diff --git a/lib/components/elastic.js b/lib/components/elastic.js new file mode 100644 index 0000000..ee41cf8 --- /dev/null +++ b/lib/components/elastic.js @@ -0,0 +1,12 @@ +import { Component } from '@serpentity/serpentity'; + +/** + * Component that stores elastic properties + * + * @extends {external:Serpentity.Component} + * @class ElasticComponent + * @param {object} config a configuration object to extend. + */ +export default class ElasticComponent extends Component { +}; + diff --git a/lib/components/force.js b/lib/components/force.js new file mode 100644 index 0000000..f0e460c --- /dev/null +++ b/lib/components/force.js @@ -0,0 +1,43 @@ +import { Component } from '@serpentity/serpentity'; + +/** + * Component that stores a force vector + * + * @extends {external:Serpentity.Component} + * @class ForceComponent + * @param {object} config a configuration object to extend. + */ +export default class ForceComponent extends Component { + constructor(config) { + + super(config); + + /** + * The properthy that holds the x component of the vector + * + * @property {number} x + * @instance + * @memberof AngleComponent + */ + this.x = this.x || 0; + + /** + * The properthy that holds the y component of the vector + * + * @property {number} y + * @instance + * @memberof AngleComponent + */ + + this.y = this.y || 0; + /** + * The properthy that holds the z component of the vector + * + * @property {number} z + * @instance + * @memberof AngleComponent + */ + this.z = this.z || 0; + } +}; + diff --git a/lib/components/max_velocity.js b/lib/components/max_velocity.js new file mode 100644 index 0000000..70bf343 --- /dev/null +++ b/lib/components/max_velocity.js @@ -0,0 +1,25 @@ +import { Component } from '@serpentity/serpentity'; + +/** + * Component that stores max velocity constraint + * + * @extends {external:Serpentity.Component} + * @class MaxVelocityComponent + * @param {object} config a configuration object to extend. + */ +export default class MaxVelocityComponent extends Component { + constructor(config) { + + super(config); + + /** + * The properthy that holds the max velocity + * + * @property {number} maxVelocity + * @instance + * @memberof MaxVelocityComponent + */ + this.maxVelocity = this.maxVelocity || 20; + } +}; + diff --git a/lib/config.js b/lib/config.js new file mode 100644 index 0000000..ba02ed8 --- /dev/null +++ b/lib/config.js @@ -0,0 +1,16 @@ +/** + Changes the stiffness on the node when it's less extended + * + * @name Config + * @type object + */ +export default { + + /** + * How many pixels to use per meter + * + * @property {number} meterSize + * @memberof Config + */ + meterSize: 25 +}; diff --git a/lib/factories/pixi.js b/lib/factories/pixi.js index 851a074..839e593 100644 --- a/lib/factories/pixi.js +++ b/lib/factories/pixi.js @@ -73,6 +73,34 @@ export default { createEmptyGraphic(config) { return new Graphics(); + }, + + /** + * Creates a harness graphic + * + * @function createHarness + * @memberof PixiFactory + * @return {external:CreateJs.Container} the created container + */ + createHarness(config) { + + const radius = config.radius; + + const lineThickness = 10; + + // The body + const body = new Graphics(); + body.lineStyle(lineThickness, 0xe1e1e1, 1) + .drawCircle(0, 0, radius); + + const center = new Graphics(); + center.beginFill(0xf1f1f1) + .drawCircle(0, 0, radius - lineThickness / 2) + .endFill(); + + body.addChild(center); + + return body; } }; diff --git a/lib/factories/sumo.js b/lib/factories/sumo.js index d1f31f0..ea5a71c 100644 --- a/lib/factories/sumo.js +++ b/lib/factories/sumo.js @@ -1,12 +1,21 @@ import { Bodies, Constraint } from 'matter-js'; import { Entity } from '@serpentity/serpentity'; +// Components + import AngleComponent from '../components/angle'; import BodyComponent from '../components/body'; +import ControlMapComponent from '../components/control_map'; import CoupledEntitiesComponent from '../components/coupled_entities'; +import DashComponent from '../components/dash'; +import ElasticComponent from '../components/elastic'; +import ForceComponent from '../components/force'; +import MaxVelocityComponent from '../components/max_velocity'; import PositionComponent from '@serpentity/components.position'; import PixiContainerComponent from '../components/pixi_container'; + import PixiFactory from '../factories/pixi'; +import Config from '../config'; const internals = { kNoEntityError: 'Entity Not Found: This method requires entityA and entityB to be set in the config.', @@ -45,6 +54,17 @@ export default { entity.addComponent(new AngleComponent(config.angle)); const angle = entity.getComponent(AngleComponent); + entity.addComponent(new ForceComponent(config.force)); + + config.maxVelocity = { + maxVelocity: 12 + }; + entity.addComponent(new MaxVelocityComponent(config.maxVelocity)); + + // CONTROLS & ABILITIES + + entity.addComponent(new DashComponent(config.dash)); + // RENDERING const radius = 25; @@ -59,15 +79,18 @@ export default { // PHYSICS - const frictionAir = 0.00001; - const friction = 0.00001; + const frictionAir = 0.02; + const friction = 1; + const frictionStatic = 1; const restitution = 0.9; - const density = 0.5; + const density = 1; - const body = Bodies.circle(position.x, position.y, radius, { + const body = Bodies.circle(position.x / Config.meterSize, position.y / Config.meterSize, radius / Config.meterSize, { + label: 'Sumo body', angle: angle.angle, density, frictionAir, + frictionStatic, friction, restitution }); @@ -115,18 +138,16 @@ export default { const bodyA = config.entityA.getComponent(BodyComponent).body; const bodyB = config.entityB.getComponent(BodyComponent).body; - const damping = 0.01; - const length = 100; - const stiffness = 0.0001; - const angularStiffness = 0.0001; + const damping = 0; + const length = 100 / Config.meterSize; + const stiffness = 0.001; const body = Constraint.create({ bodyA, bodyB, damping, length, - stiffness, - angularStiffness + stiffness }); entity.addComponent(new BodyComponent({ body })); @@ -134,6 +155,143 @@ export default { coupledEntities: [config.entityA, config.entityB] })); + entity.addComponent(new ElasticComponent()); + + if (engine) { + engine.addEntity(entity); + } + + return entity; + }, + + /** + * Creates a controllable sumo entity and adds it to the engine. Can override + * position in the config object + * + * @function createControllableSumo + * @memberof SumoFactory + * @param {external:Serpentity} [engine] the serpentity engine to attach + * to. If not sent, it will not be attached. + * @param {object} [config] the config to override the entity, accepts + * the key `position` as an object with an x and y property. + * @return {external:Serpentity.Entity} the created entity + */ + createControllableSumo(engine, config = {}) { + + const entity = this.createSumo(null, config); + + entity.addComponent(new ControlMapComponent({ + map: [ + { + source: { + type: 'keyboard', + index: 37 // left arrow + }, + target: { + component: ForceComponent, + property: 'x', + value: (value) => -Number(value) + } + }, + { + source: { + type: 'keyboard', + index: 39 // right arrow + }, + target: { + component: ForceComponent, + property: 'x', + value: (value) => Number(value) + } + }, + { + source: { + type: 'keyboard', + index: 38 // up arrow + }, + target: { + component: ForceComponent, + property: 'y', + value: (value) => -Number(value) + } + }, + { + source: { + type: 'keyboard', + index: 40 // down arrow + }, + target: { + component: ForceComponent, + property: 'y', + value: (value) => Number(value) + } + }, + { + source: { + type: 'keyboard', + index: 90 // Z + }, + target: { + component: DashComponent, + property: 'dashing' + } + } + ] + })); + + if (engine) { + engine.addEntity(entity); + } + + return entity; + }, + + /** + * Creates a static harness entity + * + * @function createHarness + * @memberof SumoFactory + * @param {external:Serpentity} [engine] the serpentity engine to attach + * to. If not sent, it will not be attached. + * @param {object} [config] the config to override the entity, accepts + * the key `position` as an object with an x and y property. + * @return {external:Serpentity.Entity} the created entity + */ + createHarness(engine, config = {}) { + + const entity = new Entity(); + + // POSITION + + entity.addComponent(new PositionComponent(config.position)); + const position = entity.getComponent(PositionComponent); + + // RENDERING + + const radius = 15; + + const container = config.container || { + container: PixiFactory.createHarness({ radius }) + }; + container.container.position.x = position.x; + container.container.position.y = position.y; + entity.addComponent(new PixiContainerComponent(container)); + + // PHYSICS + + const friction = 0; + const frictionStatic = 0; + const restitution = 1; + + const body = Bodies.circle(position.x / Config.meterSize, position.y / Config.meterSize, radius / Config.meterSize, { + isStatic: true, + label: 'Harness body', + friction, + restitution, + frictionStatic + }); + entity.addComponent(new BodyComponent({ body })); + if (engine) { engine.addEntity(entity); } diff --git a/lib/nodes/controllable.js b/lib/nodes/controllable.js new file mode 100644 index 0000000..bb6f3b3 --- /dev/null +++ b/lib/nodes/controllable.js @@ -0,0 +1,24 @@ +import { Node } from '@serpentity/serpentity'; + +import ControlMapComponent from '../components/control_map'; + +/** + * Node identifying an entity that has a control mapping + * + * @extends {external:Serpentity.Node} + * @class ControllableNode + */ +export default class ControllableNode extends Node { + +}; + +/** + * Holds the types that are used to identify a controllable entity + * + * @property {object} types + * @name types + * @memberof ControllableNode + */ +ControllableNode.types = { + controlMap: ControlMapComponent +}; diff --git a/lib/nodes/dasher.js b/lib/nodes/dasher.js new file mode 100644 index 0000000..9662c68 --- /dev/null +++ b/lib/nodes/dasher.js @@ -0,0 +1,29 @@ +import { Node } from '@serpentity/serpentity'; + +import BodyComponent from '../components/body'; +import DashComponent from '../components/dash'; +import ForceComponent from '../components/force'; + +/** + * Node identifying an entity that has a control mapping + * + * @extends {external:Serpentity.Node} + * @class DasherNode + */ +export default class DasherNode extends Node { + +}; + +/** + * Holds the types that are used to identify a dasher entity + * + * @property {object} types + * @name types + * @memberof DasherNode + */ +DasherNode.types = { + body: BodyComponent, + dash: DashComponent, + force: ForceComponent +}; + diff --git a/lib/nodes/elastic.js b/lib/nodes/elastic.js new file mode 100644 index 0000000..090a6a7 --- /dev/null +++ b/lib/nodes/elastic.js @@ -0,0 +1,27 @@ +import { Node } from '@serpentity/serpentity'; + +import BodyComponent from '../components/body'; +import ElasticComponent from '../components/elastic'; + +/** + * Node identifying an entity that is an elastic physical body + * + * @extends {external:Serpentity.Node} + * @class ElasticNode + */ +export default class ElasticNode extends Node { + +}; + +/** + * Holds the types that are used to identify an elastic entity + * + * @property {object} types + * @name types + * @memberof ElasticNode + */ +ElasticNode.types = { + body: BodyComponent, + elastic: ElasticComponent +}; + diff --git a/lib/nodes/limited_velocity.js b/lib/nodes/limited_velocity.js new file mode 100644 index 0000000..554f68c --- /dev/null +++ b/lib/nodes/limited_velocity.js @@ -0,0 +1,26 @@ +import { Node } from '@serpentity/serpentity'; + +import BodyComponent from '../components/body'; +import MaxVelocityComponent from '../components/max_velocity'; + +/** + * Node identifying an entity that is a limited velocity physical body + * + * @extends {external:Serpentity.Node} + * @class LimitedVelocityNode + */ +export default class LimitedVelocityNode extends Node { + +}; + +/** + * Holds the types that are used to identify a limited velocity entity + * + * @property {object} types + * @name types + * @memberof LimitedVelocityNode + */ +LimitedVelocityNode.types = { + body: BodyComponent, + maxVelocity: MaxVelocityComponent +}; diff --git a/lib/nodes/physical_with_external_force.js b/lib/nodes/physical_with_external_force.js new file mode 100644 index 0000000..32695c7 --- /dev/null +++ b/lib/nodes/physical_with_external_force.js @@ -0,0 +1,27 @@ +import { Node } from '@serpentity/serpentity'; + +import BodyComponent from '../components/body'; +import ForceComponent from '../components/force'; + +/** + * Node identifying an entity that has externally applied force + * + * @extends {external:Serpentity.Node} + * @class PhysicalWithExternalForceNode + */ +export default class PhysicalWithExternalForceNode extends Node { + +}; + +/** + * Holds the types that are used to identify an entity with a physical + * body + * + * @property {object} types + * @name types + * @memberof PhysicalWithExternalForceNode + */ +PhysicalWithExternalForceNode.types = { + body: BodyComponent, + force: ForceComponent +}; diff --git a/lib/sumo.js b/lib/sumo.js index daa7e94..2b6f085 100644 --- a/lib/sumo.js +++ b/lib/sumo.js @@ -1,10 +1,22 @@ import 'babel-polyfill'; + +// Systems +import ApplyForceSystem from './systems/apply_force'; +import CreateCouplingLineSystem from './systems/create_coupling_line'; +import ControlMapperSystem from './systems/control_mapper'; +import DashSystem from './systems/dash'; +import ElasticSystem from './systems/elastic'; import PhysicsWorldControlSystem from './systems/physics_world_control'; import PhysicsToAttributesSystem from './systems/physics_to_attributes'; -import CreateCouplingLineSystem from './systems/create_coupling_line'; import RenderSystem from './systems/render'; import AttributesToRenderableSystem from './systems/attributes_to_renderable'; + +// Factories + import SumoFactory from './factories/sumo'; + +// External Dependencies + import Serpentity from '@serpentity/serpentity'; import { Application } from 'pixi.js'; import { Engine } from 'matter-js'; @@ -116,7 +128,7 @@ internals.Sumo = class Sumo { // We're sending the currentTime since it gives better results for // this type of renderer, though usually we expect the delta - this._engine.update(currentTime); + this._engine.update(currentFrameDuration); this._previousTime = currentTime; } } @@ -176,10 +188,18 @@ internals.Sumo = class Sumo { _initializeSystems() { + this._engine.addSystem(new ControlMapperSystem()); + + this._engine.addSystem(new DashSystem()); + + this._engine.addSystem(new ApplyForceSystem()); + this._engine.addSystem(new PhysicsWorldControlSystem({ engine: this._matterJs })); + this._engine.addSystem(new ElasticSystem()); + this._engine.addSystem(new PhysicsToAttributesSystem()); this._engine.addSystem(new AttributesToRenderableSystem()); @@ -195,42 +215,42 @@ internals.Sumo = class Sumo { _initializeEntities() { - const entityA = SumoFactory.createSumo(null, { + const sumoA = SumoFactory.createSumo(null, { position: { x: 50, y: 50 } }); - const entityB = SumoFactory.createSumo(null, { + const sumoB = SumoFactory.createControllableSumo(null, { position: { - x: 309, - y: 112 + x: 500, + y: 78 } }); - const entityC = SumoFactory.createSumo(null, { + const harness = SumoFactory.createHarness(null, { position: { - x: 500, - y: 78 + x: 309, + y: 112 } }); SumoFactory.createRubberBand(this._engine, { - entityA, - entityB + entityA: sumoA, + entityB: harness }); SumoFactory.createRubberBand(this._engine, { - entityA: entityC, - entityB + entityA: sumoB, + entityB: harness }); // To keep the coupling behind, we'll manually add the sumos later - this._engine.addEntity(entityA); - this._engine.addEntity(entityB); - this._engine.addEntity(entityC); + this._engine.addEntity(sumoA); + this._engine.addEntity(sumoB); + this._engine.addEntity(harness); } }; diff --git a/lib/systems/apply_force.js b/lib/systems/apply_force.js new file mode 100644 index 0000000..4adc55d --- /dev/null +++ b/lib/systems/apply_force.js @@ -0,0 +1,97 @@ +import { System } from '@serpentity/serpentity'; +import { Body, Vector } from 'matter-js'; + +const internals = { + kForce: 0.0001 +}; + +import PhysicalWithExternalForceNode from '../nodes/physical_with_external_force'; + +/** + * Applies physica from external forces (eg. controls) to the physics body + * + * @extends {external:Serpentity.System} + * @class ApplyForceSystem + * @param {object} config a configuration object to extend. + */ +export default class ApplyForceSystem extends System { + + constructor(config = {}) { + + super(); + + /** + * The node collection of entities that have external force + * + * @property {external:Serpentity.NodeCollection} physicalEntities + * @instance + * @memberof ApplyForceSystem + */ + this.physicalEntities = null; + } + + /** + * Initializes system when added. Requests physics nodes + * + * @function added + * @memberof ApplyForceSystem + * @instance + * @param {external:Serpentity.Engine} engine the serpentity engine to + * which we are getting added + */ + added(engine) { + + this.physicalEntities = engine.getNodes(PhysicalWithExternalForceNode); + } + + /** + * Clears system resources when removed. + * + * @function removed + * @instance + * @memberof ApplyForceSystem + */ + removed() { + + this.physicalEntities = null; + } + + /** + * Runs on every update of the loop. Updates the body based on the force + * component + * + * @function update + * @instance + * @param {Number} currentFrameDuration the duration of the current + * frame + * @memberof ApplyForceSystem + */ + update(currentFrameDuration) { + + for (const physicalEntity of this.physicalEntities) { + const body = physicalEntity.body.body; + const force = physicalEntity.force; + const forceVector = Vector.create(force.x * internals.kForce, force.y * internals.kForce); + + + // Store the last angle and apply force on non-zero forces + + if (force.x || force.y) { + force.lastAngle = Math.atan2(force.y, force.x); + Body.applyForce(body, + { + x: body.position.x, + y: body.position.y + }, + forceVector + ); + } + + // Reset the force + + force.x = 0; + force.y = 0; + } + } +}; + diff --git a/lib/systems/control_mapper.js b/lib/systems/control_mapper.js new file mode 100644 index 0000000..e91ecc6 --- /dev/null +++ b/lib/systems/control_mapper.js @@ -0,0 +1,118 @@ +import { System } from '@serpentity/serpentity'; + +import ControllableNode from '../nodes/controllable'; + +/* global window */ + +const internals = { + keyboardState: { + } +}; + +/** + * Updates control status based on the controller map + * + * @extends {external:Serpentity.System} + * @class ControlMapperSystem + * @param {object} config a configuration object to extend. + */ +export default class ControlMapperSystem extends System { + + constructor(config = {}) { + + super(); + + /** + * The node collection of controllable entities + * + * @property {external:Serpentity.NodeCollection} controllables + * @instance + * @memberof RenderSystem + */ + this.controllables = null; + + this._initializeKeyboard(); + } + + /** + * Initializes system when added. Requests controllable nodes. + * + * @function added + * @memberof RenderSystem + * @instance + * @param {external:Serpentity.Engine} engine the serpentity engine to + * which we are getting added + */ + added(engine) { + + this.controllables = engine.getNodes(ControllableNode); + } + + /** + * Clears system resources when removed. + * + * @function removed + * @instance + * @memberof RenderSystem + */ + removed() { + + this.controllables = null; + } + + /** + * Runs on every update of the loop. Maps the actions given the current state of the inputs + * + * @function update + * @instance + * @param {Number} currentFrameDuration the duration of the current + * frame + * @memberof RenderSystem + */ + update(currentFrameDuration) { + + for (const controllable of this.controllables) { + for (const map of controllable.controlMap.map) { + if (map.source.type === 'keyboard') { + this._setValue(controllable.entity, map.target, !!internals.keyboardState[map.source.index]); + } + } + } + } + + // Listens to keyboard to update internal map + + _initializeKeyboard() { + + window.addEventListener('keydown', (event) => { + + internals.keyboardState[event.keyCode] = true; + }); + + window.addEventListener('keyup', (event) => { + + internals.keyboardState[event.keyCode] = false; + }); + } + + // Sets the value to a target + + _setValue(entity, target, value) { + + const component = entity.getComponent(target.component); + + if (component) { + const keyFragments = target.property.split('.'); + let currentObject = component; + for (const keyFragment of keyFragments.slice(0, keyFragments.length - 1)) { + currentObject = currentObject[keyFragment] = currentObject[keyFragment] || {}; + } + + + const finalValue = !!target.value ? target.value(value) : value; + const finalProperty = keyFragments.pop(); + currentObject[finalProperty] += finalValue; + } + } +}; + diff --git a/lib/systems/dash.js b/lib/systems/dash.js new file mode 100644 index 0000000..d05e9ea --- /dev/null +++ b/lib/systems/dash.js @@ -0,0 +1,116 @@ +import { System } from '@serpentity/serpentity'; + +const internals = { + kForce: 10 +}; + +import DasherNode from '../nodes/dasher'; + +/** + * Applies a dash as a force on an entity. Locks it until the button is released + * and a cooldown period has passed + * + * @extends {external:Serpentity.System} + * @class DashSystem + * @param {object} config a configuration object to extend. + */ +export default class DashSystem extends System { + + constructor(config = {}) { + + super(); + + /** + * The node collection of dashers + * + * @property {external:Serpentity.NodeCollection} dashers + * @instance + * @memberof DashSystem + */ + this.dashers = null; + } + + /** + * Initializes system when added. Requests dasher nodes + * + * @function added + * @memberof DashSystem + * @instance + * @param {external:Serpentity.Engine} engine the serpentity engine to + * which we are getting added + */ + added(engine) { + + this.dashers = engine.getNodes(DasherNode); + } + + /** + * Clears system resources when removed. + * + * @function removed + * @instance + * @memberof DashSystem + */ + removed() { + + this.dashers = null; + } + + /** + * Runs on every update of the loop. Triggers dash and manages cooldown + * + * @function update + * @instance + * @param {Number} currentFrameDuration the duration of the current + * frame + * @memberof DashSystem + */ + update(currentFrameDuration) { + + for (const dasher of this.dashers) { + + const dash = dasher.dash; + + if (dash.dashing && !dash.locked) { + this._dash(dasher); + } + + if (!dash.dashing && dash.locked && dash.currentCooldown >= dash.cooldown) { + this._unlock(dasher); + } + + if (dash.locked) { + dash.currentCooldown += currentFrameDuration; + } + + dash.dashing = 0; + } + } + + // Executes the dash action + + _dash(dasher) { + + const dash = dasher.dash; + const force = dasher.force; + + const angle = force.lastAngle || 0; + dash.locked = true; + dash.currentCooldown = 0; + + const xComponent = internals.kForce * Math.cos(angle); + const yComponent = internals.kForce * Math.sin(angle); + + force.x += xComponent; + force.y += yComponent; + } + + // Executes the unlock action + + _unlock(dasher) { + + dasher.dash.locked = false; + } +}; + + diff --git a/lib/systems/elastic.js b/lib/systems/elastic.js new file mode 100644 index 0000000..b94d371 --- /dev/null +++ b/lib/systems/elastic.js @@ -0,0 +1,93 @@ +import { System } from '@serpentity/serpentity'; + +const internals = { + kTightStiffness: 0.001, + kBaseStiffness: 0.0008, + kLooseStiffness: 0.0000001 +}; + +import ElasticNode from '../nodes/elastic'; + +/** + Changes the stiffness on the node when it's less extended + * + * @extends {external:Serpentity.System} + * @class ElasticSystem + * @param {object} config a configuration object to extend. + */ +export default class ElasticSystem extends System { + + constructor(config = {}) { + + super(); + + /** + * The node collection of entities that have external force + * + * @property {external:Serpentity.NodeCollection} elastics + * @instance + * @memberof ElasticSystem + */ + this.elastics = null; + } + + /** + * Initializes system when added. Requests elastic nodes + * + * @function added + * @memberof ElasticSystem + * @instance + * @param {external:Serpentity.Engine} engine the serpentity engine to + * which we are getting added + */ + added(engine) { + + this.elastics = engine.getNodes(ElasticNode); + } + + /** + * Clears system resources when removed. + * + * @function removed + * @instance + * @memberof ElasticSystem + */ + removed() { + + this.elastics = null; + } + + /** + * Runs on every update of the loop. Checks length of elastic and adjusts + * stiffness + * + * @function update + * @instance + * @param {Number} currentFrameDuration the duration of the current + * frame + * @memberof ElasticSystem + */ + update(currentFrameDuration) { + + for (const elastic of this.elastics) { + const constraint = elastic.body.body; + + const currentDistance = Math.abs( + Math.sqrt( + Math.pow(constraint.bodyA.position.x - constraint.bodyB.position.x, 2) + + Math.pow(constraint.bodyA.position.y - constraint.bodyB.position.y, 2))); + + if (currentDistance <= constraint.length) { + constraint.stiffness = internals.kLooseStiffness; + continue; + } + + if (currentDistance >= 2.6 * constraint.length) { + constraint.stiffness = internals.kTightStiffness; + continue; + } + + constraint.stiffness = internals.kBaseStiffness; + } + } +}; diff --git a/lib/systems/physics_to_attributes.js b/lib/systems/physics_to_attributes.js index a49a16b..e054710 100644 --- a/lib/systems/physics_to_attributes.js +++ b/lib/systems/physics_to_attributes.js @@ -1,6 +1,7 @@ import { System } from '@serpentity/serpentity'; import PhysicalWithAttributesNode from '../nodes/physical_with_attributes'; +import Config from '../config'; /** * Distribuets physics data to the related components @@ -64,8 +65,8 @@ export default class PhysicsToAttributesSystem extends System { update(currentFrameDuration) { for (const physicalEntity of this.physicalEntities) { - physicalEntity.position.x = physicalEntity.body.body.position.x; - physicalEntity.position.y = physicalEntity.body.body.position.y; + physicalEntity.position.x = physicalEntity.body.body.position.x * Config.meterSize; + physicalEntity.position.y = physicalEntity.body.body.position.y * Config.meterSize; physicalEntity.angle.angle = physicalEntity.body.body.angle; } } diff --git a/lib/systems/physics_world_control.js b/lib/systems/physics_world_control.js index daa39c1..a658d5c 100644 --- a/lib/systems/physics_world_control.js +++ b/lib/systems/physics_world_control.js @@ -91,7 +91,7 @@ export default class PhysicsWorldControlSystem extends System { */ update(currentFrameDuration) { - Engine.run(this.engine); + Engine.update(this.engine, currentFrameDuration); } }; diff --git a/lib/systems/reduce_velocity.js b/lib/systems/reduce_velocity.js new file mode 100644 index 0000000..6521014 --- /dev/null +++ b/lib/systems/reduce_velocity.js @@ -0,0 +1,70 @@ +import { System } from '@serpentity/serpentity'; + +import LimitedVelocityNode from '../nodes/limited_velocity'; + +/** + * Reduces velocity if it exceeds threshold + * + * @extends {external:Serpentity.System} + * @class ReduceVelocitySystem + * @param {object} config a configuration object to extend. + */ +export default class ReduceVelocitySystem extends System { + + constructor(config = {}) { + + super(); + + /** + * The node collection of entities that have external force + * + * @property {external:Serpentity.NodeCollection} limitedVelocityEntities + * @instance + * @memberof ReduceVelocitySystem + */ + this.limitedVelocityEntities = null; + } + + /** + * Initializes system when added. Requests limited velocity nodes + * + * @function added + * @memberof ReduceVelocitySystem + * @instance + * @param {external:Serpentity.Engine} engine the serpentity engine to + * which we are getting added + */ + added(engine) { + + this.limitedVelocityEntities = engine.getNodes(LimitedVelocityNode); + } + + /** + * Clears system resources when removed. + * + * @function removed + * @instance + * @memberof ReduceVelocitySystem + */ + removed() { + + this.limitedVelocityEntities = null; + } + + /** + * Runs on every update of the loop. Checks current velocity and adjusts if necessary + * + * @function update + * @instance + * @param {Number} currentFrameDuration the duration of the current + * frame + * @memberof ReduceVelocitySystem + */ + update(currentFrameDuration) { + + for (const limitedVelocityEntity of this.limitedVelocityEntities) { + console.log(limitedVelocityEntity.body.body.velocity, limitedVelocityEntity.maxVelocity.maxVelocity); + } + } +}; + diff --git a/lib/systems/render.js b/lib/systems/render.js index a2e3020..06d0e60 100644 --- a/lib/systems/render.js +++ b/lib/systems/render.js @@ -31,13 +31,13 @@ export default class RenderSystem extends System { /** * The pixi engine we will use to render * - * @property {external:PixiJs.Application} renderables + * @property {external:PixiJs.Application} application * @instance * @memberof RenderSystem */ - this._application = config.application; + this.application = config.application; - if (!this._application) { + if (!this.application) { throw new Error(internals.kNoPixiError); } } @@ -57,11 +57,11 @@ export default class RenderSystem extends System { this.renderables = engine.getNodes(RenderableNode); this.renderables.on('nodeAdded', (event) => { - this._application.stage.addChild(event.node.container.container); + this.application.stage.addChild(event.node.container.container); }); this.renderables.on('nodeRemoved', (event) => { - this._application.stage.removeChild(event.node.container.container); + this.application.stage.removeChild(event.node.container.container); }); }