superpositions on map are ok

src/components/ConcernementMapItem.vue

@@ -369,7 +369,7 @@ export default {
         // INFO https://github.com/liabru/matter-attractors/issues/8        
         // INFO https://github.com/liabru/matter-attractors/blob/master/index.js
         // INFO https://github.com/liabru/matter-attractors/blob/master/build/matter-attractors.js#L180
-        MatterAttractors.Attractors.gravityConstant = -20;
+        // MatterAttractors.Attractors.gravityConstant = -20;
 
         // Create parts of the body : main big circle & entities
         // INFO map a range of numbers to another range of numbers https://stackoverflow.com/a/46462321
@@ -378,8 +378,8 @@ export default {
         let ray = ray_range[0] + (this.entites.length - entite_range[0]) * (ray_range[1] - ray_range[0]) / (entite_range[1] - entite_range[0]);
         this.body_parts = [
           Matter.Bodies.circle(0, 0, ray, {
-            item_type: 'concernement',
-            id: this.concernement.id,
+            // item_type: 'concernement',
+            // id: this.concernement.id,
           })
         ];
         
@@ -400,37 +400,37 @@ export default {
           collisionFilter: {
             group: -1
           },
-          plugin: {
-            attractors: [
-              // // there is a built in helper function for Newtonian gravity!
-              // // you can find out how it works in index.js
-              MatterAttractors.Attractors.gravity
+          // plugin: {
+          //   attractors: [
+          //     // // there is a built in helper function for Newtonian gravity!
+          //     // // you can find out how it works in index.js
+          //     MatterAttractors.Attractors.gravity
               
-              // function(bodyA, bodyB) {
-              //   var force = {
-              //     x: (bodyA.position.x - bodyB.position.x) * 1e-6,
-              //     y: (bodyA.position.y - bodyB.position.y) * 1e-6
-              //   }
-              //   // apply force to both bodies
-              //   Matter.Body.applyForce(bodyA, bodyA.position, force);
-              //   Matter.Body.applyForce(bodyB, bodyB.position, Matter.Vector.neg(force));
-              // }
-
-              // INFO https://github.com/liabru/matter-attractors/blob/master/build/matter-attractors.js#L192
-              // function (bodyA, bodyB){
-              //   // use Newton's law of gravitation
-              //   var bToA = Matter.Vector.sub(bodyB.position, bodyA.position),
-              //       distanceSq = Matter.Vector.magnitudeSquared(bToA) || 0.0001,
-              //       normal = Matter.Vector.normalise(bToA),
-              //       magnitude = -MatterAttractors.Attractors.gravityConstant * (bodyA.mass * bodyB.mass / distanceSq),
-              //       force = Matter.Vector.mult(normal, magnitude);
-
-              //   // to apply forces to both bodies
-              //   Matter.Body.applyForce(bodyA, bodyA.position, Matter.Vector.neg(force));
-              //   Matter.Body.applyForce(bodyB, bodyB.position, force);
-              // }
-            ]
-          }
+          //     // function(bodyA, bodyB) {
+          //     //   var force = {
+          //     //     x: (bodyA.position.x - bodyB.position.x) * 1e-6,
+          //     //     y: (bodyA.position.y - bodyB.position.y) * 1e-6
+          //     //   }
+          //     //   // apply force to both bodies
+          //     //   Matter.Body.applyForce(bodyA, bodyA.position, force);
+          //     //   Matter.Body.applyForce(bodyB, bodyB.position, Matter.Vector.neg(force));
+          //     // }
+
+          //     // INFO https://github.com/liabru/matter-attractors/blob/master/build/matter-attractors.js#L192
+          //     // function (bodyA, bodyB){
+          //     //   // use Newton's law of gravitation
+          //     //   var bToA = Matter.Vector.sub(bodyB.position, bodyA.position),
+          //     //       distanceSq = Matter.Vector.magnitudeSquared(bToA) || 0.0001,
+          //     //       normal = Matter.Vector.normalise(bToA),
+          //     //       magnitude = -MatterAttractors.Attractors.gravityConstant * (bodyA.mass * bodyB.mass / distanceSq),
+          //     //       force = Matter.Vector.mult(normal, magnitude);
+
+          //     //   // to apply forces to both bodies
+          //     //   Matter.Body.applyForce(bodyA, bodyA.position, Matter.Vector.neg(force));
+          //     //   Matter.Body.applyForce(bodyB, bodyB.position, force);
+          //     // }
+          //   ]
+          // }
         });
         Matter.Body.setPosition(this.body, this.pos);
 
@@ -464,7 +464,7 @@ export default {
       this.paper_main_object.addChild(this.setPaperContour());
 
       if (this.concernement.has_superpositions) {
-        this.paper_main_object.addChild(this.setPaperSuperpositions());
+        this.paper_main_object.addChild(this.setPaperEntitesSuperposees());
       }
 
       if (this.concernement.has_puissancedagir) {
@@ -639,7 +639,7 @@ export default {
       }
       return g;
     },
-    setPaperSuperpositions(){
+    setPaperEntitesSuperposees(){
       console.log('setPaperSuperpositions');
       let g = new paper.Group({
         pivot: new paper.Point(this.pos),
@@ -1490,8 +1490,8 @@ export default {
       }
       
       // reset all matter rotation forces otherwise items will spin when colide 
-      // Matter.Body.setAngle(this.body, 0);
-      // Matter.Body.setAngularSpeed(this.body, 0);
+      Matter.Body.setAngle(this.body, 0);
+      Matter.Body.setAngularSpeed(this.body, 0);
     },
     applyFocusForces(){
       if(!this.isFocused()) {
@@ -1808,6 +1808,7 @@ export default {
 
 
       this.handlePaperVisibilityOnAfterEnginUpdate()
+
     },
   },
   render() {

src/components/MapConcernements.vue

@@ -42,6 +42,8 @@ export default {
       paper: null,
       //
       mapPopupData: null,
+      //
+      superpositions_constraints: []
     }
   },
   provide() {
@@ -58,7 +60,8 @@ export default {
                                     'concernementsByID',
                                     'opened_concernement',
                                     'opened_entite_id',
-                                    'opened_recit'
+                                    'opened_recit',
+                                    'allSuperpositions'
                                   ]),
     ...mapState(CommonStore,['map_item_ray',
                              'hover_elmt',
@@ -72,13 +75,22 @@ export default {
       timing: {
         //timestamp: 0.5,
         timeScale: 0.5
-      }
+      },
+      // constraintIterations: 20,
+      // positionIterations: 20,
+      // velocityIterations: 20
     }
     this.engine = Matter.Engine.create(engineOptions);
     this.engine.gravity.scale = 0;
     this.world = this.engine.world;
+
+
+    // listen for afterUpdate event from Matter.Engine object
+    Matter.Events.on(this.engine, "beforeUpdate", this.onBeforeEngineUpdate);
+    Matter.Events.on(this.engine, "afterUpdate", this.onAfterEngineUpdate);
   },
   mounted() {
+    console.log('map mounted');
     this.canvasMap.canvas = this.$refs['canvas-map'];
     this.canvasMap.ctx = this.canvasMap.canvas.getContext('2d');
 
@@ -111,6 +123,7 @@ export default {
         this.setHoverElmt(null);
       }
     }.bind(this);
+
     // MATTER
     let wall_w = 1000;
     Matter.Composite.add(this.world, [
@@ -203,6 +216,33 @@ export default {
         }
       },
       deep: true
+    },
+    map_mode: {
+      handler (n, o) {
+        console.log('concernementMap watch map_mode', o, n);
+        if (n === 'superposition' && !this.opened_concernement) {
+          // create constraints
+          this.setSuperpositionsMatterConstraints();
+        }else{
+          // destroy constraints
+          this.clearSuperpositionsMatterConstraints();
+        }
+      },
+      deep: true
+    },
+    allSuperpositions: {
+      handler (n, o) {
+        console.log('concernementMap watch allSuperpositions', o, n);
+        if (n && n.length) {
+          // create constraints with a delay (watch is needed for first page load)
+          window.setTimeout(this.setSuperpositionsMatterConstraints, 200);
+        }
+        // else{
+        //   // destroy constraints
+        //   this.clearSuperpositionsMatterConstraints();
+        // }
+      },
+      deep: true
     }
   },
   methods: {
@@ -995,6 +1035,98 @@ export default {
         strokeColor: "#01ffe2",
         strokeWidth: 0.25,
       })
+    },
+    setSuperpositionsMatterConstraints(){
+      console.log('setSuperpositionsMatterConstraints this.allSuperpositions', this.allSuperpositions);
+      // let allBodies = Matter.Composite.allBodies(this.world);
+      // console.log('allBodies', allBodies);
+      // let allComposites = Matter.Composite.allComposites(this.world); 
+      // console.log('allComposites', allComposites);
+
+      for(let superposition of this.allSuperpositions){
+        // console.log('superposition', superposition[0].cid, superposition[1].cid);
+        // get the concernement matter bodies with id
+        let bodyA = Matter.Composite.get(this.world, superposition[0].cid, 'body');
+        let bodyB = Matter.Composite.get(this.world, superposition[1].cid, 'body');
+        // console.log('bodyA, bodyB', bodyA, bodyB);
+
+        // get the entite coordinates inside the concernement body
+        let pointA = null;
+        let concernementA = this.concernementsByID[superposition[0].cid];
+        // console.log('concernementA', concernementA);
+        for(let entiteA of concernementA.revisions_byid[concernementA.active_revision].entites){
+          if (entiteA.entite && entiteA.entite.id === superposition[0].eid && entiteA.display) {
+            // console.log('entiteA', entiteA);
+            pointA = Matter.Vector.create(entiteA.display.pos.x, entiteA.display.pos.y);
+            break;
+          }
+        }
+        let pointB = null;
+        let concernementB = this.concernementsByID[superposition[1].cid];
+        // console.log('concernementB', concernementB);
+        for(let entiteB of concernementB.revisions_byid[concernementB.active_revision].entites){
+          if (entiteB.entite && entiteB.entite.id === superposition[1].eid && entiteB.display) {
+            // console.log('entiteB', entiteB);
+            pointB = Matter.Vector.create(entiteB.display.pos.x, entiteB.display.pos.y); 
+            break;
+          }
+        }
+        
+        // console.log(`pointA:`, pointA,` pointB:`, pointB);
+        if (bodyA && bodyB && pointA && pointB) {
+          let c = Matter.Constraint.create({
+            bodyA: bodyA,
+            pointA: pointA,
+            bodyB: bodyB,
+            pointB: pointB,
+            stiffness: 1,
+            length: 0,
+            damping: 1
+          });
+          this.superpositions_constraints.push(c);
+          Matter.Composite.add(this.world, c);
+        }
+      }
+    },
+    clearSuperpositionsMatterConstraints(){
+      console.log('clearSuperpositionsMatterConstraints', this.superpositions_constraints);
+      for(let constraint of this.superpositions_constraints){
+        Matter.Composite.remove(this.world, constraint, true);
+      }
+      this.superpositions_constraints = [];
+    },
+    onBeforeEngineUpdate(){
+
+    },
+    onAfterEngineUpdate(){
+
+      // // START OF DEBUGGING
+      // // draw lines of constraints for debuging
+      // let constraints_lines = this.paper.project.getItem({name: 'constraints_lines', class: paper.Group});
+      // if (constraints_lines) {
+      //   constraints_lines.removeChildren();
+      // }else{
+      //   constraints_lines = new paper.Group({
+      //     pivot: new paper.Point({x:0,y:0}),
+      //     name: 'constraints_lines',
+      //   });
+      // }
+      // let all_constrains = Matter.Composite.allConstraints(this.world);
+      // let children = [];
+      // for(let constraint of all_constrains){
+      //   // console.log('constrain', constraint);
+      //   let pointAWorld = Matter.Constraint.pointAWorld(constraint);
+      //   let pointBWorld = Matter.Constraint.pointBWorld(constraint);
+      //   // console.log('pointAWorld, pointBWorld', pointAWorld, pointBWorld);
+      //   children.push(new paper.Path.Line({
+      //     from: [pointAWorld.x, pointAWorld.y],
+      //     to: [pointBWorld.x, pointBWorld.y],
+      //     strokeColor: '#f00',
+      //     strokeWidth: 1
+      //   }));
+      // }
+      // constraints_lines.addChildren(children);
+      // // END OF DEBUGGING
     }
   },
   beforeUpdate () {

src/stores/concernements.js

@@ -97,27 +97,44 @@ export const ConcernementsStore = defineStore({
                       let already_recorded = false;
                       // loop through all already recorded superposition to complete the array instead of create duplicates
                       for(let superposition of this.allSuperpositions) { 
-                        if (superposition.indexOf(entite_superpose.id) >= 0) {
-                          already_recorded = true;
-                          if (superposition.indexOf(entite.entite.id) < 0) {
-                            superposition.push(entite.entite.id)
+                        // if (superposition.indexOf(entite_superpose.id) >= 0) {
+                        //   already_recorded = true;
+                        //   if (superposition.indexOf(entite.entite.id) < 0) {
+                        //     superposition.push(entite.entite.id)
+                        //   }
+                        //   break;
+                        // }
+                        // if (superposition.indexOf(entite.entite.id) >= 0) {
+                        //   already_recorded = true;
+                        //   if (superposition.indexOf(entite_superpose.id) < 0) {
+                        //     superposition.push(entite_superpose.id)
+                        //   }
+                        //   break;
+                        // }
+                        for(let superposition_item of superposition) {
+                          if (superposition_item.eid === entite.entite.id && !superposition_item.cid) {
+                            console.log(`already_recorded, eid:${entite.entite.id}, teid:${entite_superpose.id}`, entite.entite.title);
+                            already_recorded = true;
+                            superposition_item.cid = concernement.id;
+                            break;
                           }
-                          break;
                         }
-                        if (superposition.indexOf(entite.entite.id) >= 0) {
-                          already_recorded = true;
-                          if (superposition.indexOf(entite_superpose.id) < 0) {
-                            superposition.push(entite_superpose.id)
-                          }
+                        if (already_recorded) {
                           break;
                         }
                       }
                       // if not already recorded, add it to the array
                       if (!already_recorded) {
-                        // console.log(`NOT already_recorded, eid:${entite.entite.id}, teid:${entite_superpose.id}`, this.allSuperpositions);
+                        console.log(`NOT already_recorded, eid:${entite.entite.id}, teid:${entite_superpose.id}`, entite.entite.title);
                         this.allSuperpositions.push([
-                          entite.entite.id, // entite id
-                          entite_superpose.id  // target id
+                          { 
+                            cid: concernement.id, 
+                            eid: entite.entite.id
+                          },
+                          {
+                            cid: null,
+                            eid: entite_superpose.id
+                          }
                         ])
                       }
                     })