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node_modules/phaser/plugins/impact/SeparateX.js

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+/**
+ * @author       Richard Davey <rich@photonstorm.com>
+ * @copyright    2020 Photon Storm Ltd.
+ * @license      {@link https://opensource.org/licenses/MIT|MIT License}
+ */
+
+/**
+ * [description]
+ *
+ * @function Phaser.Physics.Impact.SeparateX
+ * @since 3.0.0
+ *
+ * @param {Phaser.Physics.Impact.World} world - [description]
+ * @param {Phaser.Physics.Impact.Body} left - [description]
+ * @param {Phaser.Physics.Impact.Body} right - [description]
+ * @param {Phaser.Physics.Impact.Body} [weak] - [description]
+ */
+var SeparateX = function (world, left, right, weak)
+{
+    var nudge = left.pos.x + left.size.x - right.pos.x;
+    
+    // We have a weak entity, so just move this one
+    if (weak)
+    {
+        var strong = (left === weak) ? right : left;
+
+        weak.vel.x = -weak.vel.x * weak.bounciness + strong.vel.x;
+        
+        var resWeak = world.collisionMap.trace(weak.pos.x, weak.pos.y, weak === left ? -nudge : nudge, 0, weak.size.x, weak.size.y);
+
+        weak.pos.x = resWeak.pos.x;
+    }
+    else
+    {
+        var v2 = (left.vel.x - right.vel.x) / 2;
+
+        left.vel.x = -v2;
+        right.vel.x = v2;
+    
+        var resLeft = world.collisionMap.trace(left.pos.x, left.pos.y, -nudge / 2, 0, left.size.x, left.size.y);
+
+        left.pos.x = Math.floor(resLeft.pos.x);
+        
+        var resRight = world.collisionMap.trace(right.pos.x, right.pos.y, nudge / 2, 0, right.size.x, right.size.y);
+
+        right.pos.x = Math.ceil(resRight.pos.x);
+    }
+};
+
+module.exports = SeparateX;