support for is-gesture (#1873)

* support for is-gesture

* updated shims

* activate shake button

* refactor

* refactor shake button

libs/core/_locales/core-jsdoc-strings.json

@@ -340,6 +340,8 @@
   "input.calibrate": "Obsolete, use input.calibrateCompass instead.",
   "input.calibrateCompass": "Obsolete, compass calibration is automatic.",
   "input.compassHeading": "Get the current compass heading in degrees.",
+  "input.isGesture": "Tests if a gesture is currently detected.",
+  "input.isGesture|param|gesture": "the type of gesture to detect, eg: Gesture.Shake",
   "input.lightLevel": "Reads the light level applied to the LED screen in a range from ``0`` (dark) to ``255`` bright.",
   "input.magneticForce": "Get the magnetic force value in ``micro-Teslas`` (``µT``). This function is not supported in the simulator.",
   "input.magneticForce|param|dimension": "TODO",

libs/core/_locales/core-strings.json

@@ -291,6 +291,7 @@
   "input.buttonIsPressed|block": "button|%NAME|is pressed",
   "input.calibrateCompass|block": "calibrate compass",
   "input.compassHeading|block": "compass heading (°)",
+  "input.isGesture|block": "is %gesture gesture",
   "input.lightLevel|block": "light level",
   "input.magneticForce|block": "magnetic force (µT)|%NAME",
   "input.onButtonPressed|block": "on button|%NAME|pressed",

libs/core/input.cpp

@@ -190,6 +190,19 @@ namespace input {
         registerWithDal(MICROBIT_ID_GESTURE, gi, body);
     }
 
+    /**
+    * Tests if a gesture is currently detected.
+     * @param gesture the type of gesture to detect, eg: Gesture.Shake
+    */
+    //% help=input/is-gesture weight=10 blockGap=8
+    //% blockId=deviceisgesture block="is %gesture gesture"
+    //% parts="accelerometer"
+    //% gesture.fieldEditor="gestures" gesture.fieldOptions.columns=4
+    bool isGesture(Gesture gesture) {
+        int gi = (int)gesture;
+        return uBit.accelerometer.getGesture() == gi;
+    }
+
      /**
      * Do something when a pin is touched and released again (while also touching the GND pin).
      * @param name the pin that needs to be pressed, eg: TouchPin.P0

libs/core/shims.d.ts

@@ -228,6 +228,16 @@ declare namespace input {
     //% NAME.fieldEditor="gestures" NAME.fieldOptions.columns=4 shim=input::onGesture
     function onGesture(gesture: Gesture, body: () => void): void;
 
+    /**
+     * Tests if a gesture is currently detected.
+     * @param gesture the type of gesture to detect, eg: Gesture.Shake
+     */
+    //% help=input/is-gesture weight=10 blockGap=8
+    //% blockId=deviceisgesture block="is %gesture gesture"
+    //% parts="accelerometer"
+    //% gesture.fieldEditor="gestures" gesture.fieldOptions.columns=4 shim=input::isGesture
+    function isGesture(gesture: Gesture): boolean;
+
     /**
      * Do something when a pin is touched and released again (while also touching the GND pin).
      * @param name the pin that needs to be pressed, eg: TouchPin.P0