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b418907e41
* refactor(generators): Migrate python_generator.js to TypeScript * refactor(generators): Migrate generators/python/* to TypeScript First pass doing very mechanistic migration, not attempting to fix all the resulting type errors. * fix(generators): Fix type errors in generator functions This consists almost entirely of adding casts, so the code output by tsc should be as similar as possible to the pre-migration .js source files. * refactor(generators): Migrate generators/python.js to TypeScript The way the generator functions are added to pythonGenerator.forBlock has been modified so that incorrect generator function signatures will cause tsc to generate a type error. * chore(generator): Format One block protected with // prettier-ignore to preserve careful comment formatting. Where there are repeated concatenations prettier has made a pretty mess of things, but the correct fix is probably to use template literals instead (rather than just locally disabling prettier). This is one of the items in the to-do list in #7600.
89 lines
2.7 KiB
TypeScript
89 lines
2.7 KiB
TypeScript
/**
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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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// Former goog.module ID: Blockly.Python.colour
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import type {Block} from '../../core/block.js';
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import type {PythonGenerator} from './python_generator.js';
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import {Order} from './python_generator.js';
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export function colour_picker(
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block: Block,
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generator: PythonGenerator,
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): [string, Order] {
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// Colour picker.
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const code = generator.quote_(block.getFieldValue('COLOUR'));
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return [code, Order.ATOMIC];
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}
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export function colour_random(
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block: Block,
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generator: PythonGenerator,
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): [string, Order] {
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// Generate a random colour.
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// TODO(#7600): find better approach than casting to any to override
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// CodeGenerator declaring .definitions protected.
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(generator as AnyDuringMigration).definitions_['import_random'] =
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'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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export function colour_rgb(
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block: Block,
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generator: PythonGenerator,
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): [string, Order] {
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// Compose a colour from RGB components expressed as percentages.
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const functionName = generator.provideFunction_(
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'colour_rgb',
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`
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def ${generator.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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);
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const r = generator.valueToCode(block, 'RED', Order.NONE) || 0;
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const g = generator.valueToCode(block, 'GREEN', Order.NONE) || 0;
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const b = generator.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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export function colour_blend(
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block: Block,
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generator: PythonGenerator,
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): [string, Order] {
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// Blend two colours together.
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const functionName = generator.provideFunction_(
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'colour_blend',
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`
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def ${generator.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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);
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const colour1 =
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generator.valueToCode(block, 'COLOUR1', Order.NONE) || "'#000000'";
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const colour2 =
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generator.valueToCode(block, 'COLOUR2', Order.NONE) || "'#000000'";
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const ratio = generator.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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