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ardublockly
Commit e2ebf833 authored by Carlos Pereira Atencio's avatar Carlos Pereira Atencio Committed by carlospamg
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Update to Arduino math generator. Not yet finished, but at a good enough state to move forward.

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generators/arduino/math.js
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/**
* @license
* Visual Blocks Language
*
* Copyright 2012 Google Inc.
* http://blockly.googlecode.com/
* https://blockly.googlecode.com/
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
......@@ -19,32 +20,38 @@
/**
* @fileoverview Generating Arduino for math blocks.
* @author gasolin@gmail.com (Fred Lin)
*/
'use strict';
Blockly.Arduino = Blockly.Generator.get('Arduino');
goog.provide('Blockly.Arduino.math');
goog.require('Blockly.Arduino');
Blockly.Arduino.math_number = function() {
Blockly.Arduino['math_number'] = function(block) {
// Numeric value.
var code = window.parseFloat(this.getTitleValue('NUM'));
// -4.abs() returns -4 in Dart due to strange order of operation choices.
// -4 is actually an operator and a number. Reflect this in the order.
var order = code < 0 ?
Blockly.Arduino.ORDER_UNARY_PREFIX : Blockly.Arduino.ORDER_ATOMIC;
return [code, order];
var code = parseFloat(block.getFieldValue('NUM'));
return [code, Blockly.Arduino.ORDER_ATOMIC];
};
Blockly.Arduino.math_arithmetic = function() {
Blockly.Arduino['math_arithmetic'] = function(block) {
// Basic arithmetic operators, and power.
var mode = this.getTitleValue('OP');
var tuple = Blockly.Arduino.math_arithmetic.OPERATORS[mode];
//TODO: determine if the next line is needed
//var mode = this.getTitleValue('OP');
var OPERATORS = {
ADD: [' + ', Blockly.Arduino.ORDER_ADDITIVE],
MINUS: [' - ', Blockly.Arduino.ORDER_ADDITIVE],
MULTIPLY: [' * ', Blockly.Arduino.ORDER_MULTIPLICATIVE],
DIVIDE: [' / ', Blockly.Arduino.ORDER_MULTIPLICATIVE],
POWER: [null, Blockly.Arduino.ORDER_NONE] // Handle power separately.
};
var tuple = OPERATORS[block.getFieldValue('OP')];
var operator = tuple[0];
var order = tuple[1];
var argument0 = Blockly.Arduino.valueToCode(this, 'A', order) || '0';
var argument1 = Blockly.Arduino.valueToCode(this, 'B', order) || '0';
var argument0 = Blockly.Arduino.valueToCode(block, 'A', order) || '0';
var argument1 = Blockly.Arduino.valueToCode(block, 'B', order) || '0';
var code;
// Power in C++ requires a special case since it has no operator.
if (!operator) {
code = 'Math.pow(' + argument0 + ', ' + argument1 + ')';
return [code, Blockly.Arduino.ORDER_UNARY_POSTFIX];
......@@ -53,84 +60,66 @@ Blockly.Arduino.math_arithmetic = function() {
return [code, order];
};
Blockly.Arduino.math_arithmetic.OPERATORS = {
ADD: [' + ', Blockly.Arduino.ORDER_ADDITIVE],
MINUS: [' - ', Blockly.Arduino.ORDER_ADDITIVE],
MULTIPLY: [' * ', Blockly.Arduino.ORDER_MULTIPLICATIVE],
DIVIDE: [' / ', Blockly.Arduino.ORDER_MULTIPLICATIVE],
POWER: [null, Blockly.Arduino.ORDER_NONE] // Handle power separately.
};
Blockly.Arduino.math_change = function() {
// Add to a variable in place.
var argument0 = Blockly.Arduino.valueToCode(this, 'DELTA',
Blockly.Arduino.ORDER_ADDITIVE) || '0';
var varName = Blockly.Arduino.variableDB_.getName(this.getTitleValue('VAR'),
Blockly.Variables.NAME_TYPE);
return varName + ' = (' + varName + ' is num ? ' + varName + ' : 0) + ' +
argument0 + ';\n';
};
Blockly.Arduino.math_single = function() {
Blockly.Arduino['math_single'] = function(block) {
// Math operators with single operand.
var operator = this.getTitleValue('OP');
var operator = block.getFieldValue('OP');
var code;
var arg;
if (operator == 'NEG') {
// Negation is a special case given its different operator precedents.
arg = Blockly.Arduino.valueToCode(this, 'NUM',
arg = Blockly.Arduino.valueToCode(block, 'NUM',
Blockly.Arduino.ORDER_UNARY_PREFIX) || '0';
if (arg[0] == '-') {
// --3 is not legal in Dart.
// --3 is not legal in C++ in this context.
arg = ' ' + arg;
}
code = '-' + arg;
return [code, Blockly.Arduino.ORDER_UNARY_PREFIX];
}
if (operator == 'ABS' || operator.substring(0, 5) == 'ROUND') {
arg = Blockly.Arduino.valueToCode(this, 'NUM',
arg = Blockly.Arduino.valueToCode(block, 'NUM',
Blockly.Arduino.ORDER_UNARY_POSTFIX) || '0';
} else if (operator == 'SIN' || operator == 'COS' || operator == 'TAN') {
arg = Blockly.Arduino.valueToCode(this, 'NUM',
arg = Blockly.Arduino.valueToCode(block, 'NUM',
Blockly.Arduino.ORDER_MULTIPLICATIVE) || '0';
} else {
arg = Blockly.Arduino.valueToCode(this, 'NUM',
arg = Blockly.Arduino.valueToCode(block, 'NUM',
Blockly.Arduino.ORDER_NONE) || '0';
}
// First, handle cases which generate values that don't need parentheses.
switch (operator) {
case 'ABS':
code = arg + '.abs()';
code = 'abs(' + arg + ')';
break;
case 'ROOT':
code = 'Math.sqrt(' + arg + ')';
code = 'sqrt(' + arg + ')';
break;
case 'LN':
code = 'Math.log(' + arg + ')';
code = 'log(' + arg + ')';
break;
case 'EXP':
code = 'Math.exp(' + arg + ')';
code = 'exp(' + arg + ')';
break;
case 'POW10':
code = 'Math.pow(10,' + arg + ')';
code = 'pow(10,' + arg + ')';
break;
case 'ROUND':
code = arg + '.round()';
code = 'round(' + arg + ')';
break;
case 'ROUNDUP':
code = arg + '.ceil()';
code = 'ceil(' + arg + ')';
break;
case 'ROUNDDOWN':
code = arg + '.floor()';
code = 'floor(' + arg + ')';
break;
case 'SIN':
code = 'Math.sin(' + arg + ' / 180 * Math.PI)';
code = 'sin(' + arg + ' / 180 * Math.PI)';
break;
case 'COS':
code = 'Math.cos(' + arg + ' / 180 * Math.PI)';
code = 'cos(' + arg + ' / 180 * Math.PI)';
break;
case 'TAN':
code = 'Math.tan(' + arg + ' / 180 * Math.PI)';
code = 'tan(' + arg + ' / 180 * Math.PI)';
break;
}
if (code) {
......@@ -139,16 +128,16 @@ Blockly.Arduino.math_single = function() {
// Second, handle cases which generate values that may need parentheses.
switch (operator) {
case 'LOG10':
code = 'Math.log(' + arg + ') / Math.log(10)';
code = 'log(' + arg + ') / log(10)';
break;
case 'ASIN':
code = 'Math.asin(' + arg + ') / Math.PI * 180';
code = 'asin(' + arg + ') / M_PI * 180';
break;
case 'ACOS':
code = 'Math.acos(' + arg + ') / Math.PI * 180';
code = 'acos(' + arg + ') / M_PI * 180';
break;
case 'ATAN':
code = 'Math.atan(' + arg + ') / Math.PI * 180';
code = 'atan(' + arg + ') / M_PI * 180';
break;
default:
throw 'Unknown math operator: ' + operator;
......@@ -156,15 +145,101 @@ Blockly.Arduino.math_single = function() {
return [code, Blockly.Arduino.ORDER_MULTIPLICATIVE];
};
Blockly.Arduino['math_constant'] = function(block) {
//TODO: Might need to include "#define _USE_MATH_DEFINES"
// The arduino header file already includes math.h
// Constants: PI, E, the Golden Ratio, sqrt(2), 1/sqrt(2), INFINITY.
var CONSTANTS = {
'PI': ['M_PI', Blockly.Arduino.ORDER_UNARY_POSTFIX],
'E': ['M_E', Blockly.Arduino.ORDER_UNARY_POSTFIX],
'GOLDEN_RATIO': ['(1 + sqrt(5)) / 2', Blockly.Arduino.ORDER_MULTIPLICATIVE],
'SQRT2': ['M_SQRT2', Blockly.Arduino.ORDER_UNARY_POSTFIX],
'SQRT1_2': ['M_SQRT1_2', Blockly.Arduino.ORDER_UNARY_POSTFIX],
'INFINITY': ['INFINITY', Blockly.Arduino.ORDER_ATOMIC]
};
return CONSTANTS[block.getFieldValue('CONSTANT')];
};
Blockly.Arduino['math_number_property'] = function(block) {
// Check if a number is even, odd, prime, whole, positive, or negative
// or if it is divisible by certain number. Returns true or false.
var number_to_check = Blockly.Arduino.valueToCode(block, 'NUMBER_TO_CHECK',
Blockly.Arduino.ORDER_MULTIPLICATIVE) || '0';
var dropdown_property = block.getFieldValue('PROPERTY');
var code;
if (dropdown_property == 'PRIME') {
//FIXME: this doesn't work yet
// Prime is a special case as it is not a one-liner test.
var functionName = Blockly.Arduino.provideFunction_(
'math_isPrime',
[ 'function ' + Blockly.Arduino.FUNCTION_NAME_PLACEHOLDER_ + '(n) {',
' // https://en.wikipedia.org/wiki/Primality_test#Naive_methods',
' if (n == 2 || n == 3) {',
' return true;',
' }',
' // False if n is NaN, negative, is 1, or not whole.',
' // And false if n is divisible by 2 or 3.',
' if (isNaN(n) || n <= 1 || n % 1 != 0 || n % 2 == 0 ||' +
' n % 3 == 0) {',
' return false;',
' }',
' // Check all the numbers of form 6k +/- 1, up to sqrt(n).',
' for (int x = 6; x <= sqrt(n) + 1; x += 6) {',
' if (n % (x - 1) == 0 || n % (x + 1) == 0) {',
' return false;',
' }',
' }',
' return true;',
'}']);
code = functionName + '(' + number_to_check + ')';
return [code, Blockly.Arduino.ORDER_FUNCTION_CALL];
}
switch (dropdown_property) {
case 'EVEN':
code = number_to_check + ' % 2 == 0';
break;
case 'ODD':
code = number_to_check + ' % 2 == 1';
break;
case 'WHOLE':
code = number_to_check + ' % 1 == 0';
break;
case 'POSITIVE':
code = number_to_check + ' > 0';
break;
case 'NEGATIVE':
code = number_to_check + ' < 0';
break;
case 'DIVISIBLE_BY':
var divisor = Blockly.Arduino.valueToCode(block, 'DIVISOR',
Blockly.Arduino.ORDER_MULTIPLICATIVE) || '0';
code = number_to_check + ' % ' + divisor + ' == 0';
break;
}
return [code, Blockly.Arduino.ORDER_EQUALITY];
};
Blockly.Arduino['math_change'] = function(block) {
//TODO: update this
// Add to a variable in place.
var argument0 = Blockly.Arduino.valueToCode(block, 'DELTA',
Blockly.Arduino.ORDER_ADDITIVE) || '0';
var varName = Blockly.Arduino.variableDB_.getName(
block.getFieldValue('VAR'), Blockly.Variables.NAME_TYPE);
return varName + ' = (' + varName + ' is num ? ' + varName +
' : 0) + ' + argument0 + ';\n';
};
// Rounding functions have a single operand.
Blockly.Arduino.math_round = Blockly.Arduino.math_single;
Blockly.Arduino['math_round'] = Blockly.Arduino['math_single'];
// Trigonometry functions have a single operand.
Blockly.Arduino.math_trig = Blockly.Arduino.math_single;
Blockly.Arduino['math_trig'] = Blockly.Arduino['math_single'];
Blockly.Arduino.math_on_list = function() {
Blockly.Arduino['math_on_list'] = function(block) {
//TODO: update this
// Math functions for lists.
var func = this.getTitleValue('OP');
var list = Blockly.Arduino.valueToCode(this, 'LIST',
var func = block.getFieldValue('OP');
var list = Blockly.Arduino.valueToCode(block, 'LIST',
Blockly.Arduino.ORDER_NONE) || '[]';
var code;
switch (func) {
......@@ -347,34 +422,35 @@ Blockly.Arduino.math_on_list = function() {
return [code, Blockly.Arduino.ORDER_UNARY_POSTFIX];
};
Blockly.Arduino.math_constrain = function() {
Blockly.Arduino['math_modulo'] = function(block) {
// Remainder computation.
var argument0 = Blockly.Arduino.valueToCode(block, 'DIVIDEND',
Blockly.Arduino.ORDER_MULTIPLICATIVE) || '0';
var argument1 = Blockly.Arduino.valueToCode(block, 'DIVISOR',
Blockly.Arduino.ORDER_MULTIPLICATIVE) || '0';
var code = argument0 + ' % ' + argument1;
return [code, Blockly.Arduino.ORDER_MULTIPLICATIVE];
};
Blockly.Arduino['math_constrain'] = function(block) {
// Constrain a number between two limits.
var argument0 = Blockly.Arduino.valueToCode(this, 'VALUE',
var argument0 = Blockly.Arduino.valueToCode(block, 'VALUE',
Blockly.Arduino.ORDER_NONE) || '0';
var argument1 = Blockly.Arduino.valueToCode(this, 'LOW',
var argument1 = Blockly.Arduino.valueToCode(block, 'LOW',
Blockly.Arduino.ORDER_NONE) || '0';
var argument2 = Blockly.Arduino.valueToCode(this, 'HIGH',
var argument2 = Blockly.Arduino.valueToCode(block, 'HIGH',
Blockly.Arduino.ORDER_NONE) || '0';
var code = 'Math.min(Math.max(' + argument0 + ', ' + argument1 + '), ' +
argument2 + ')';
argument2 + ')';
return [code, Blockly.Arduino.ORDER_UNARY_POSTFIX];
};
Blockly.Arduino.math_modulo = function() {
// Remainder computation.
var argument0 = Blockly.Arduino.valueToCode(this, 'DIVIDEND',
Blockly.Arduino.ORDER_MULTIPLICATIVE) || '0';
var argument1 = Blockly.Arduino.valueToCode(this, 'DIVISOR',
Blockly.Arduino.ORDER_MULTIPLICATIVE) || '0';
var code = argument0 + ' % ' + argument1;
return [code, Blockly.Arduino.ORDER_MULTIPLICATIVE];
};
Blockly.Arduino.math_random_int = function() {
Blockly.Arduino['math_random_int'] = function(block) {
//TODO: update this
// Random integer between [X] and [Y].
var argument0 = Blockly.Arduino.valueToCode(this, 'FROM',
var argument0 = Blockly.Arduino.valueToCode(block, 'FROM',
Blockly.Arduino.ORDER_NONE) || '0';
var argument1 = Blockly.Arduino.valueToCode(this, 'TO',
var argument1 = Blockly.Arduino.valueToCode(block, 'TO',
Blockly.Arduino.ORDER_NONE) || '0';
if (!Blockly.Arduino.definitions_['math_random_int']) {
var functionName = Blockly.Arduino.variableDB_.getDistinctName(
......@@ -397,7 +473,7 @@ Blockly.Arduino.math_random_int = function() {
return [code, Blockly.Arduino.ORDER_UNARY_POSTFIX];
};
Blockly.Arduino.math_random_float = function() {
Blockly.Arduino['math_random_float'] = function(block) {
// Random fraction between 0 and 1.
return ['Math.random()', Blockly.Arduino.ORDER_UNARY_POSTFIX];
return ['(rand() / RAND_MAX)', Blockly.Arduino.ORDER_UNARY_POSTFIX];
};
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