feat: context types

packages/behavior/context/context.js

@@ -8,10 +8,10 @@ const debug = D('@avocado:behavior:context');
 export class Context {
 
   constructor(defaults = {}) {
+    this.typeMap = new Map();
+    this.variableMap = new Map();
     this.initialize();
-    for (const key in defaults) {
-      this.add(key, defaults[key]);
-    }
+    this.addObjectMap(defaults);
   }
 
   static describe(description, fn) {
@@ -21,34 +21,41 @@ export class Context {
   }
 
   static globals() {
-    if (!Context._globals) {
-      Context._globals = {};
-      const globalss = invokeHookFlat('behaviorContextGlobals');
-      for (let i = 0; i < globalss.length; i++) {
-        const globals = globalss[i];
-        for (const key in globals) {
-          Context._globals[key] = globals[key];
-        }
-      }
-    }
-    return Context._globals;
+    return invokeHookFlat('behaviorContextGlobals')
+      .reduce((r, globals) => ({...r, ...globals}), {});
   }
 
-  add(key, value) {
-    this.map.set(key, value);
+  static typeDescription(type, variable) {
+    const types = invokeHookFlat('behaviorContextTypes')
+      .reduce((r, globals) => ({...r, ...globals}), {});
+    if (!types[type]) {
+      return {};
+    }
+    if ('function' === typeof types[type]) {
+      return types[type](variable);
+    }
+    return types[type];
+  }
+
+  add(key, value, type) {
+    this.typeMap.set(key, type);
+    this.variableMap.set(key, value, type);
+  }
+
+  addObjectMap(map) {
+    Object.entries(map).forEach(([key, [variable, type]]) => this.add(key, variable, type));
   }
 
   all() {
-    return objectFromEntries(Array.from(this.map.entries()));
+    return Array.from(this.variableMap.keys())
+      .reduce((r, key) => ({...r, [key]: this.get(key)}), {});
   }
 
   initialize() {
-    this.map = new Map();
-    this.add('context', this);
-    const globals = this.constructor.globals();
-    for (const key in globals) {
-      this.add(key, globals[key]);
-    }
+    this.typeMap.clear()
+    this.variableMap.clear()
+    this.add('context', this, 'context');
+    this.addObjectMap(this.constructor.globals());
   }
 
   clear() {
@@ -56,7 +63,12 @@ export class Context {
   }
 
   destroy() {
-    this.map.clear();
+    this.typeMap.clear()
+    this.variableMap.clear();
+  }
+
+  get(key) {
+    return [this.variableMap.get(key), this.typeMap.get(key)];
   }
 
   static renderSteps(steps) {
@@ -126,7 +138,7 @@ export class Context {
         previousNode = node;
         return result;
       });
-    }, this.map.get(first.key));
+    }, this.variableMap.get(first.key));
   }
 
   traverseOneStep(steps, previousNode, node, step) {

packages/behavior/context/flow.hooks.js

@@ -8,10 +8,25 @@ class Flow {
     }
   };
 
-  static contextDescription() {
+  static parallel(actions, context) {
+    return actions.parallel(context);
+  }
+
+  static serial(actions, context) {
+    return actions.serial(context);
+  }
+
+}
+
+export function behaviorContextGlobals() {
   return {
-      type: 'object',
-      children: {
+    Flow: [Flow, 'Flow'],
+  };
+}
+
+export function behaviorContextTypes() {
+  return {
+    Flow: {
       conditional: {
         type: 'ticking-promise',
         label: 'If $1 then run $2.',
@@ -42,22 +57,7 @@ class Flow {
           }],
         ],
       },
-      }
-    };
-  }
-
-  static parallel(actions, context) {
-    return actions.parallel(context);
-  }
-
-  static serial(actions, context) {
-    return actions.serial(context);
-  }
-
-}
-
-export function behaviorContextGlobals() {
-  return {
-    Flow,
+    },
   };
 }
+

packages/behavior/context/timing.hooks.js

@@ -2,23 +2,6 @@ import {TickingPromise} from '@avocado/core';
 
 class Timing {
 
-  static contextDescription() {
-    return {
-      type: 'object',
-      children: {
-        wait: {
-          type: 'ticking-promise',
-          label: 'Wait for $1 seconds.',
-          args: [
-            ['duration', {
-              type: 'number',
-            }],
-          ],
-        },
-      },
-    };
-  }
-
   static wait (duration) {
     return new TickingPromise(
       () => {},
@@ -33,8 +16,24 @@ class Timing {
 
 }
 
-export function behaviorContextGlobals() {
+export function behaviorContextTypes() {
   return {
-    Timing,
+    Timing: {
+      wait: {
+        type: 'ticking-promise',
+        label: 'Wait for $1 seconds.',
+        args: [
+          ['duration', {
+            type: 'number',
+          }],
+        ],
+      },
+    },
+  };
+}
+
+export function behaviorContextGlobals() {
+  return {
+    Timing: [Timing, 'Timing'],
   };
 }

packages/behavior/context/utility.hooks.js

@@ -34,6 +34,6 @@ class Utility {
 
 export function behaviorContextGlobals() {
   return {
-    Utility,
+    Utility: [Utility, 'Utility'],
   };
 }

packages/behavior/traits/behaved.trait.js

@@ -55,7 +55,7 @@ export default class Behaved extends decorate(Trait) {
   constructor(entity, params, state) {
     super(entity, params, state);
     this._context = new Context({
-      entity: this.entity,
+      entity: [this.entity, 'entity'],
     });
     this._currentRoutine = undefined;
     this._routines = (new Routines()).fromJSON(this.params.routines);

packages/entity/entity.synchronized.js

@@ -227,20 +227,6 @@ export default class Entity extends decorate(Resource) {
     this._fastDirtyCheck = false;
   }
 
-  contextDescription() {
-    return {
-      type: 'entity',
-      children: this._traitsFlat.reduce(
-        (r, trait) => ({
-          ...r,
-          ...trait.constructor.contextDescription(),
-          ...trait.constructor.describeParams(),
-          ...trait.constructor.describeState(),
-        }), {},
-      ),
-    };
-  }
-
   fromJSON(json) {
     super.fromJSON(json);
     if (json.instanceUuid) {

packages/entity/index.hooks.js

@@ -0,0 +1,15 @@
+export function behaviorContextTypes() {
+  return {
+    entity: (entity) => (
+      Object.values(entity.allTraitInstances())
+        .reduce(
+          (r, {constructor: {behaviorContextTypes, describeParams, describeState}}) => ({
+            ...r,
+            ...behaviorContextTypes(),
+            ...describeParams(),
+            ...describeState(),
+          }), {},
+        )
+    ),
+  };
+}

packages/entity/trait/index.js

@@ -38,7 +38,7 @@ export class Trait extends decorate(class {}) {
     this._fastDirtyCheck = false;
   }
 
-  static contextDescription() {
+  static behaviorContextTypes() {
     return {};
   }
 

packages/entity/traits/alive.trait.js

@@ -25,7 +25,7 @@ const decorate = compose(
 
 export default class Alive extends decorate(Trait) {
 
-  static contextDescription() {
+  static behaviorContextTypes() {
     return {
       forceDeath: {
         type: 'void',
@@ -112,7 +112,7 @@ export default class Alive extends decorate(Trait) {
   constructor(entity, params, state) {
     super(entity, params, state);
     this._context = new Context({
-      entity: this.entity,
+      entity: [this.entity, 'entity'],
     });
     this._deathActions = behaviorItemFromJSON(this.params.deathActions);
     this._deathCondition = behaviorItemFromJSON(this.params.deathCondition);

packages/entity/traits/existent.trait.js

@@ -10,7 +10,7 @@ const decorate = compose(
 
 export default class Existent extends decorate(Trait) {
 
-  static contextDescription() {
+  static behaviorContextTypes() {
     return {
       transition: {
         type: 'ticking-promise',

packages/entity/traits/listed.trait.js

@@ -4,7 +4,7 @@ import {Trait} from '../trait';
 
 export default class Listed extends Trait {
 
-  static contextDescription() {
+  static behaviorContextTypes() {
     return {
       detachFromList: {
         type: 'void',

packages/entity/traits/mobile.trait.js

@@ -10,7 +10,7 @@ const decorate = compose(
 
 export default class Mobile extends decorate(Trait) {
 
-  static contextDescription() {
+  static behaviorContextTypes() {
     return {
       moveFor: {
         type: 'void',

packages/entity/traits/positioned.trait.js

@@ -17,7 +17,7 @@ const decorate = compose(
 // < 16768 will pack into 1 short per axe and give +/- 0.25 precision.
 export default class Positioned extends decorate(Trait) {
 
-  static contextDescription() {
+  static behaviorContextTypes() {
     return {
       setPosition: {
         type: 'void',

packages/entity/traits/spawner.trait.js

@@ -13,7 +13,7 @@ const decorate = compose(
 
 export default class Spawner extends decorate(Trait) {
 
-  static contextDescription() {
+  static behaviorContextTypes() {
     return {
       spawn: {
         type: 'entity',

packages/graphics/traits/visible.trait.js

@@ -30,7 +30,7 @@ const decorate = compose(
 
 export default class Visible extends decorate(Trait) {
 
-  static contextDescription() {
+  static behaviorContextTypes() {
     return {
       updateVisibleBoundingBox: {
         advanced: true,

packages/math/index.hooks.js

@@ -1,9 +1,14 @@
 import * as MathExt from '.';
 
-MathExt.contextDescription = () => {
+export function behaviorContextGlobals() {
   return {
-    type: 'module',
-    children: {
+    Math: [MathExt, 'Math'],
+  };
+}
+
+export function behaviorContextTypes() {
+  return {
+    Math: (Math) => ({
       floor: {
         type: 'number',
         label: 'Floor $1.',
@@ -28,12 +33,6 @@ MathExt.contextDescription = () => {
       Vector: {
         type: 'Vector',
       },
-    },
-  };
-};
-
-export function behaviorContextGlobals() {
-  return {
-    Math: MathExt,
+    }),
   };
 }

packages/math/vector/index.hooks.js

@@ -0,0 +1,15 @@
+export function behaviorContextTypes() {
+  return {
+    Vector: (Math) => ({
+      fromDirection: {
+        type: 'vector',
+        label: '$1 as a movement vector.',
+        args: [
+          ['direction', {
+            type: 'number',
+          }],
+        ],
+      },
+    }),
+  };
+}

packages/math/vector/index.js

@@ -409,7 +409,7 @@ export class Range extends MathRange {
 
 }
 
-export function contextDescription() {
+export function behaviorContextTypes() {
   return {
     type: 'Vector',
     children: {

packages/physics/traits/collider.trait.js

@@ -10,7 +10,7 @@ const decorate = compose(
 
 export default class Collider extends decorate(Trait) {
 
-  static contextDescription() {
+  static behaviorContextTypes() {
     return {
       collidesWith: {
         advanced: true,
@@ -182,7 +182,7 @@ export default class Collider extends decorate(Trait) {
 
   pushCollisionTickingPromise(actions, other) {
     const context = new Context({
-      entity: this.entity,
+      entity: [this.entity, 'entity'],
       other,
     });
     const tickingPromise = actions.tickingPromise(context);

packages/sound/traits/audible.trait.js

@@ -4,7 +4,7 @@ import {Sound} from '..';
 
 export default class Audible extends Trait {
 
-  static contextDescription() {
+  static behaviorContextTypes() {
     return {
       playSound: {
         type: 'void',