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Change variable name to be shorter / more legible.

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This commit is contained in:
Evelyn Eastmond 2019-06-14 11:21:54 -04:00
parent 6284cbdd85
commit b476169f84
1 changed files with 21 additions and 21 deletions
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42
src/extensions/scratch3_ev3/index.js
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@ -65,7 +65,7 @@ const Ev3Opcode = {
/** /**
* Enum for Ev3 values used as arguments to various opcodes. * Enum for Ev3 values used as arguments to various opcodes.
* Found in the 'EV3 Firmware Developer Kit', section4, page 10, at * Found in the 'EV3 Firmware Developer Kit', section4, page 10-onwards, at
* https://education.lego.com/en-us/support/mindstorms-ev3/developer-kits. * https://education.lego.com/en-us/support/mindstorms-ev3/developer-kits.
* @readonly * @readonly
* @enum {string} * @enum {string}
@ -710,7 +710,7 @@ class EV3 {
return; return;
} }
const byteCommands = []; // a compound command const cmds = []; // a compound command
let allocation = 0; let allocation = 0;
let sensorCount = 0; let sensorCount = 0;
@ -721,12 +721,12 @@ class EV3 {
if (this._pollingCounter % 20 === 0) { if (this._pollingCounter % 20 === 0) {
// GET DEVICE LIST // GET DEVICE LIST
byteCommands[0] = Ev3Opcode.OPINPUT_DEVICE_LIST; cmds[0] = Ev3Opcode.OPINPUT_DEVICE_LIST;
byteCommands[1] = Ev3Value.NUM8; // 1 byte to follow cmds[1] = Ev3Value.NUM8; // 1 byte to follow
byteCommands[2] = 33; // 0x21 ARRAY // TODO: document cmds[2] = 33; // 0x21 ARRAY // TODO: document
byteCommands[3] = 96; // 0x60 CHANGED // TODO: document cmds[3] = 96; // 0x60 CHANGED // TODO: document
byteCommands[4] = 225; // 0xE1 size of global var - 1 byte to follow // TODO: document cmds[4] = 225; // 0xE1 size of global var - 1 byte to follow // TODO: document
byteCommands[5] = 32; // 0x20 global var index "0" 0b00100000 // TODO: document cmds[5] = 32; // 0x20 global var index "0" 0b00100000 // TODO: document
// Command and payload lengths // Command and payload lengths
allocation = 33; allocation = 33;
@ -742,13 +742,13 @@ class EV3 {
if (!this._sensorPorts.includes(undefined)) { // TODO: why is this needed? if (!this._sensorPorts.includes(undefined)) { // TODO: why is this needed?
for (let i = 0; i < 4; i++) { for (let i = 0; i < 4; i++) {
if (this._sensorPorts[i] !== 'none') { if (this._sensorPorts[i] !== 'none') {
byteCommands[index + 0] = Ev3Opcode.OPINPUT_READSI; cmds[index + 0] = Ev3Opcode.OPINPUT_READSI;
byteCommands[index + 1] = Ev3Value.LAYER; cmds[index + 1] = Ev3Value.LAYER;
byteCommands[index + 2] = i; // PORT cmds[index + 2] = i; // PORT
byteCommands[index + 3] = Ev3Value.DO_NOT_CHANGE_TYPE; cmds[index + 3] = Ev3Value.DO_NOT_CHANGE_TYPE;
byteCommands[index + 4] = Ev3Mode[this._sensorPorts[i]]; cmds[index + 4] = Ev3Mode[this._sensorPorts[i]];
byteCommands[index + 5] = 225; // 0xE1 one byte to follow // TODO: document cmds[index + 5] = 225; // 0xE1 one byte to follow // TODO: document
byteCommands[index + 6] = sensorCount * 4; // global index // TODO: document cmds[index + 6] = sensorCount * 4; // global index // TODO: document
index += 7; index += 7;
} }
sensorCount++; sensorCount++;
@ -759,11 +759,11 @@ class EV3 {
// eslint-disable-next-line no-undefined // eslint-disable-next-line no-undefined
if (!this._motorPorts.includes(undefined)) { if (!this._motorPorts.includes(undefined)) {
for (let i = 0; i < 4; i++) { for (let i = 0; i < 4; i++) {
byteCommands[index + 0] = Ev3Opcode.OPOUTPUT_GET_COUNT; cmds[index + 0] = Ev3Opcode.OPOUTPUT_GET_COUNT;
byteCommands[index + 1] = Ev3Value.LAYER; cmds[index + 1] = Ev3Value.LAYER;
byteCommands[index + 2] = i; // PORT TODO: explain incorrect documentation as 'Output bit field' cmds[index + 2] = i; // PORT TODO: explain incorrect documentation as 'Output bit field'
byteCommands[index + 3] = 225; // 0xE1 byte following TODO: document cmds[index + 3] = 225; // 0xE1 byte following TODO: document
byteCommands[index + 4] = sensorCount * 4; // global index TODO: document cmds[index + 4] = sensorCount * 4; // global index TODO: document
index += 5; index += 5;
sensorCount++; sensorCount++;
} }
@ -775,7 +775,7 @@ class EV3 {
const cmd = this.generateCommand( const cmd = this.generateCommand(
Ev3Command.DIRECT_COMMAND_REPLY, Ev3Command.DIRECT_COMMAND_REPLY,
byteCommands, cmds,
allocation allocation
); );