rename "microbit" package to "core" #414 (#270)

* rename "microbit" package to "core" #414

* shouldn't edit the package id.

* updating package.json

* updated the wrong version

* missed updating pxt.json of tests

libs/core/basic.cpp

@@ -0,0 +1,134 @@
+#include "ksbit.h"
+
+
+/**
+ * Provides access to basic micro:bit functionality.
+ */
+//% color=#0078D7 weight=100
+namespace basic {
+
+    /**
+     * Scroll a number on the screen. If the number fits on the screen (i.e. is a single digit), do not scroll.
+     * @param interval speed of scroll; eg: 150, 100, 200, -100
+     */
+    //% help=basic/show-number
+    //% weight=96
+    //% blockId=device_show_number block="show|number %number" blockGap=8 icon="\uf1ec"
+    //% async
+    //% parts="ledmatrix"
+    void showNumber(int value, int interval = 150) { 
+      if (interval < 0)
+        return;
+
+      ManagedString t(value);
+      if (value < 0 || value >= 10) {
+        uBit.display.scroll(t, interval);
+      } else {
+        uBit.display.printChar(t.charAt(0), interval * 5);
+      }
+    }
+
+    /**
+     * Draws an image on the LED screen.
+     * @param leds the pattern of LED to turn on/off
+     * @param interval time in milliseconds to pause after drawing
+     */
+    //% help=basic/show-leds 
+    //% weight=95 blockGap=8
+    //% imageLiteral=1 async
+    //% blockId=device_show_leds
+    //% block="show leds" icon="\uf00a"
+    //% parts="ledmatrix"
+    void showLeds(ImageLiteral leds, int interval = 400) {
+      uBit.display.print(MicroBitImage(imageBytes(leds)), 0, 0, 0, interval);
+    }
+
+    /**
+     * Display text on the display, one character at a time. If the string fits on the screen (i.e. is one letter), does not scroll.
+     * @param text the text to scroll on the screen, eg: "Hello!"
+     * @param interval how fast to shift characters; eg: 150, 100, 200, -100
+     */
+    //% help=basic/show-string 
+    //% weight=87 blockGap=8
+    //% block="show|string %text" icon="\uf031" 
+    //% async
+    //% blockId=device_print_message
+    //% parts="ledmatrix"
+    void showString(StringData *text, int interval = 150) {
+      if (interval < 0)
+        return;
+      ManagedString s(text);
+      int l = s.length();
+      if (l == 0) {
+        uBit.display.clear();
+        fiber_sleep(interval * 5);
+      } else if (l > 1) {
+        uBit.display.scroll(s, interval);
+      } else {
+        uBit.display.print(s.charAt(0), interval * 5);
+      }
+    }
+
+    /**
+     * Turn off all LEDs
+     */
+    //% help=basic/clear-screen weight=79
+    //% blockId=device_clear_display block="clear screen" icon="\uf12d"
+    //% parts="ledmatrix"
+    void clearScreen() {
+      uBit.display.image.clear();
+    }
+
+    /**
+     * Shows a sequence of LED screens as an animation.
+     * @param leds pattern of LEDs to turn on/off
+     * @param interval time in milliseconds between each redraw
+     */
+    //% help=basic/show-animation imageLiteral=1 async
+    //% parts="ledmatrix"
+    void showAnimation(ImageLiteral leds, int interval = 400) {
+      uBit.display.animate(MicroBitImage(imageBytes(leds)), interval, 5, 0);
+    }
+
+    /**
+     * Draws an image on the LED screen.
+     * @param leds pattern of LEDs to turn on/off
+     */
+    //% help=basic/plot-leds weight=80
+    //% parts="ledmatrix"
+    void plotLeds(ImageLiteral leds) {
+      MicroBitImage i(imageBytes(leds));
+      uBit.display.print(i, 0, 0, 0, 0);
+    }
+
+    void forever_stub(void *a) {
+      while (true) {
+        runAction0((Action)a);
+        fiber_sleep(20);
+      }
+    }
+
+    /**
+     * Repeats the code forever in the background. On each iteration, allows other codes to run.
+     * @param body code to execute
+     */
+    //% help=basic/forever weight=55 blockGap=8
+    //% blockId=device_forever block="forever" icon="\uf01e"
+    void forever(Action a) {
+      if (a != 0) {
+        incr(a);
+        create_fiber(forever_stub, (void*)a);
+      }
+    }
+
+    /**
+     * Pause for the specified time in milliseconds
+     * @param ms how long to pause for, eg: 100, 200, 500, 1000, 2000
+     */
+    //% help=basic/pause weight=54
+    //% async block="pause (ms) %pause"
+    //% blockId=device_pause icon="\uf110"
+    void pause(int ms) {
+      fiber_sleep(ms);
+    }
+}