2016-03-10 23:01:04 +01:00
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enum DisplayMode {
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//% enumval=0 blockId="black and white"
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BackAndWhite,
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//% enumval=1 blockId="greyscale"
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Greyscale,
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}
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//% color=3 weight=35
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namespace led {
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/**
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* Turn on the specified LED using x, y coordinates (x is horizontal, y is vertical). (0,0) is upper left.
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* @param x TODO
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* @param y TODO
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*/
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//% help=functions/plot weight=78 shim=micro_bit::plot
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//% blockId=device_plot block="plot|x %x|y %y" icon="\uf205" blockGap=8
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export function plot(x: number, y: number): void { }
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/**
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* Turn off the specified LED using x, y coordinates (x is horizontal, y is vertical). (0,0) is upper left.
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* @param x TODO
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* @param y TODO
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*/
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//% help=functions/unplot weight=77 shim=micro_bit::unPlot
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//% blockId=device_unplot block="unplot|x %x|y %y" icon="\uf204" blockGap=8
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export function unplot(x: number, y: number): void { }
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/**
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* Get the on/off state of the specified LED using x, y coordinates. (0,0) is upper left.
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* @param x TODO
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* @param y TODO
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*/
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//% help=functions/point weight=76 shim=micro_bit::point
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//% blockId=device_point block="point|x %x|y %y" icon="\uf10c"
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export function point(x: number, y: number): boolean {
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return false;
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}
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/**
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* Get the screen brightness from 0 (off) to 255 (full bright).
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*/
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//% help=functions/brightness weight=60 shim=micro_bit::getBrightness
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//% blockId=device_get_brightness block="brightness" icon="\uf042" blockGap=8
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export function brightness(): number {
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return 0;
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}
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/**
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* Set the screen brightness from 0 (off) to 255 (full bright).
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* @param value the brightness value, eg:255, 127, 0
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*/
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//% help=functions/set-brightness weight=59 shim=micro_bit::setBrightness
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//% blockId=device_set_brightness block="set brightness %value" icon="\uf042"
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export function setBrightness(value: number): void { }
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/**
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* Cancels the current animation and clears other pending animations.
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*/
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//% weight=50 shim=uBit.display.stopAnimation help=functions/stop-animation
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//% blockId=device_stop_animation block="stop animation" icon="\uf04d"
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export function stopAnimation(): void { }
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/**
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* Displays a vertical bar graph based on the ``value`` and ``high`` value.
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* @param value current value to plot
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* @param high maximum value, eg: 1023, 255
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*/
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//% help=/functions/plot-bar-graph weight=20
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//% blockId=device_plot_bar_graph block="plot bar graph of %value |up to %high" icon="\uf080" blockExternalInputs=true
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2016-03-22 00:49:21 +01:00
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export function plotBarGraph(value: number, high: number): void {
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2016-03-10 23:01:04 +01:00
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2016-03-16 22:14:49 +01:00
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writeString(value.toString() + "\r\n");
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2016-03-10 23:01:04 +01:00
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let v = Math.abs((value * 15) / high);
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let k = 0;
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for(let y = 4; y >= 0; --y) {
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for (let x = 0; x < 3; ++x) {
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if (k > v) {
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unplot(2-x,y);
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unplot(2+x,y);
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} else {
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plot(2-x, y);
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plot(2+x, y);
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}
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++k;
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}
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}
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}
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/**
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* Writes a string to serial
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*/
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//% shim=micro_bit::serialSendString
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function writeString(text: string): void { }
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/**
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* Sets the display mode between black and white and greyscale for rendering LEDs.
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* @param mode TODO
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*/
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//% shim=micro_bit::setDisplayMode weight=1 help=/functions/set-display-mode
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export function setDisplayMode(mode: DisplayMode): void { }
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/**
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* Toggles a particular pixel
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* @param x TODO
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* @param y TODO
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*/
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//% help=functions/toggle
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export function toggle(x: number, y: number): void {
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if (led.point(x, y)) {
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led.unplot(x, y);
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} else {
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led.plot(x, y);
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}
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}
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/**
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* Turns all LEDS on
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*/
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//% help=functions/plot-all
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export function plotAll(): void {
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for (let i = 0; i < 5; i++) {
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for (let j = 0; j < 5; j++) {
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led.plot(i, j);
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}
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}
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}
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/**
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* Inverts the current LED display
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*/
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//% help=functions/toggle-all
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export function toggleAll(): void {
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for (let i = 0; i < 5; i++) {
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for (let j = 0; j < 5; j++) {
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led.toggle(i, j);
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}
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}
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}
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/**
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* Fades in the screen display.
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* @param ms TODO
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*/
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//% help=functions/fade-in
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export function fadeIn(ms: number = 700): void {
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if (ms < 20) {
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led.setBrightness(255);
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return;
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}
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let dt = 50;
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let brightness = led.brightness();
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let start = input.runningTime();
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let elapsed = 0;
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while (elapsed < ms) {
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led.setBrightness(brightness + ((255 - brightness) * elapsed) / ms);
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basic.pause(dt);
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elapsed = input.runningTime() - start;
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}
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led.setBrightness(255);
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}
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/**
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* Fades out the screen brightness.
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* @param ms TODO
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*/
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//% help=functions/fade-out
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export function fadeOut(ms: number = 700): void {
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if (ms < 20) {
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led.setBrightness(0);
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return;
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}
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let brightness = led.brightness();
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let dt = 50;
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let start = input.runningTime();
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let elapsed = 0;
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while (elapsed < ms) {
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led.setBrightness(brightness - (brightness * elapsed) / ms);
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basic.pause(dt);
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elapsed = input.runningTime() - start;
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}
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led.setBrightness(0);
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}
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/**
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* Takes a screenshot of the LED screen and returns an image.
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*/
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//% shim=uBit.display.screenShot help=functions/screenshot
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export function screenshot(): images.Image {
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/*
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let img: Image;
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img = image.createImage("");
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for (let i = 0; i < 5; i++) {
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for (let j = 0; j < 5; j++) {
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if (led.point(i, j)) {
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img.setPixel(i, j, true);
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}
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}
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}
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return img;
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*/
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return null;
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}
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}
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