added fastpan feature

src/js/game/camera.js

@@ -901,8 +901,12 @@ export class Camera extends BasicSerializableObject {
                 forceX += 1;
             }
 
-            this.center.x += moveAmount * forceX * this.root.app.settings.getMovementSpeed();
+            let movementSpeed = this.root.app.settings.getMovementSpeed(
-            this.center.y += moveAmount * forceY * this.root.app.settings.getMovementSpeed();
+                actionMapper.getBinding(KEYMAPPINGS.navigation.fastPan).isCurrentlyPressed()
+            );
+
+            this.center.x += moveAmount * forceX * movementSpeed;
+            this.center.y += moveAmount * forceY * movementSpeed;
         }
     }
 }

src/js/game/key_action_mapper.js

@@ -36,6 +36,7 @@ export const KEYMAPPINGS = {
         centerMap: { keyCode: 32 }, // SPACE
         mapZoomIn: { keyCode: 187, repeated: true }, // "+"
         mapZoomOut: { keyCode: 189, repeated: true }, // "-"
+        fastPan: { keyCode: 16 }, //shift
 
         createMarker: { keyCode: key("M") },
     },

src/js/profile/application_settings.js

@@ -302,11 +302,14 @@ export class ApplicationSettings extends ReadWriteProxy {
         return 1;
     }
 
-    getMovementSpeed() {
+    /**
+     * @param {boolean} fastpan
+     */
+    getMovementSpeed(fastpan = false) {
         const id = this.getAllSettings().movementSpeed;
         for (let i = 0; i < movementSpeeds.length; ++i) {
             if (movementSpeeds[i].id === id) {
-                return movementSpeeds[i].multiplier;
+                return movementSpeeds[fastpan && i + 1 < movementSpeeds.length ? i + 1 : i].multiplier;
             }
         }
         logger.error("Unknown movement speed id:", id);