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2f89c0dd09
* refactor(generators): Introduce PhpGenerator class, Order enum * refactor(generators): Use Order.* instead of .ORDER_* * refactor(generators): Don't rename pythonGenerator
70 lines
2.5 KiB
JavaScript
70 lines
2.5 KiB
JavaScript
/**
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* @license
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* Copyright 2012 Google LLC
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* SPDX-License-Identifier: Apache-2.0
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*/
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/**
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* @fileoverview Generating Python for colour blocks.
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*/
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import * as goog from '../../closure/goog/goog.js';
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goog.declareModuleId('Blockly.Python.colour');
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import {pythonGenerator, Order} from '../python.js';
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pythonGenerator.forBlock['colour_picker'] = function(block) {
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// Colour picker.
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const code = pythonGenerator.quote_(block.getFieldValue('COLOUR'));
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return [code, Order.ATOMIC];
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};
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pythonGenerator.forBlock['colour_random'] = function(block) {
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// Generate a random colour.
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pythonGenerator.definitions_['import_random'] = 'import random';
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const code = '\'#%06x\' % random.randint(0, 2**24 - 1)';
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return [code, Order.FUNCTION_CALL];
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};
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pythonGenerator.forBlock['colour_rgb'] = function(block) {
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// Compose a colour from RGB components expressed as percentages.
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const functionName = pythonGenerator.provideFunction_('colour_rgb', `
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def ${pythonGenerator.FUNCTION_NAME_PLACEHOLDER_}(r, g, b):
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r = round(min(100, max(0, r)) * 2.55)
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g = round(min(100, max(0, g)) * 2.55)
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b = round(min(100, max(0, b)) * 2.55)
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return '#%02x%02x%02x' % (r, g, b)
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`);
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const r = pythonGenerator.valueToCode(block, 'RED', Order.NONE) || 0;
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const g = pythonGenerator.valueToCode(block, 'GREEN', Order.NONE) || 0;
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const b = pythonGenerator.valueToCode(block, 'BLUE', Order.NONE) || 0;
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const code = functionName + '(' + r + ', ' + g + ', ' + b + ')';
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return [code, Order.FUNCTION_CALL];
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};
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pythonGenerator.forBlock['colour_blend'] = function(block) {
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// Blend two colours together.
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const functionName = pythonGenerator.provideFunction_('colour_blend', `
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def ${pythonGenerator.FUNCTION_NAME_PLACEHOLDER_}(colour1, colour2, ratio):
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r1, r2 = int(colour1[1:3], 16), int(colour2[1:3], 16)
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g1, g2 = int(colour1[3:5], 16), int(colour2[3:5], 16)
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b1, b2 = int(colour1[5:7], 16), int(colour2[5:7], 16)
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ratio = min(1, max(0, ratio))
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r = round(r1 * (1 - ratio) + r2 * ratio)
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g = round(g1 * (1 - ratio) + g2 * ratio)
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b = round(b1 * (1 - ratio) + b2 * ratio)
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return '#%02x%02x%02x' % (r, g, b)
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`);
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const colour1 =
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pythonGenerator.valueToCode(block, 'COLOUR1', Order.NONE)
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|| '\'#000000\'';
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const colour2 =
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pythonGenerator.valueToCode(block, 'COLOUR2', Order.NONE)
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|| '\'#000000\'';
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const ratio = pythonGenerator.valueToCode(block, 'RATIO', Order.NONE) || 0;
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const code =
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functionName + '(' + colour1 + ', ' + colour2 + ', ' + ratio + ')';
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return [code, Order.FUNCTION_CALL];
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};
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