Files
blockly/generators/lua/colour.js
Christopher Allen 130989763c refactor(generators): Restructure generator modules to contain side effects (#7173)
* refactor(generators): Move lang.js -> lang/lang_gernator.js

  Move the LangGenerator definitions into their respective
  subdirectories and add a _generator suffix to their filenames,
  i.e. generators/javascript.js  becomes
  generators/javascript/javascript_generator.js.

  This is to keep related code together and allow the `lang/all.js`
  entrypoints to be moved to the top level generators/ directory.

  No goog module IDs were changed, so playground and test code
  that accesses this modules by filename does not need to be modified.

* refactor(generators) Move lang/all.js -> lang.js

  - Move the entrypoints in generators/*/all.js to correspondingly-named
    files in generators/ instead—i.e., generators/javascript/all.js
    becomes generators/javascript.js.

  - Update build_tasks.js accordingly.

* fix(generators): Add missing exports for LuaGenerator, PhpGenerator

  These were inadvertently omitted from #7161 and #7162, respectively.

* refactor(generators): Make block generator modules side-effect free

  - Move declaration of <lang>Generator instance from
    generators/<lang>/<lang>_generator.js to generators/<lang>.js.
  - Move .addReservedWords() calls from generators/<lang>/*.js to
    generators/<lang>.js
  - Modify generators/<lang>/*.js to export block generator functions
    individually, rather than installing on <lang>Generator instance.
  - Modify generators/<lang>.js to import and install block generator
    functions on <lang>Generator instance.

* fix(tests): Fix tests broken by restructuring of generators

  Where these tests needed block generator functions preinstalled
  they should have been importing the Blockly.<Lang>.all module.

  Where they do not need the provided block generator functions
  they can now create their own empty <Lang>Generator instances.

* chore: Update renamings file

  - Fix a malformation in previous entries that was not detected by
    the renaming file validator test.
  - Add entries describing the work done in this and related recent
    PRs.

* fix: Correct minor errors in PR #7173

  - Fix a search-and-replace error in renamings.json5
  - Fix an incorrect-but-usable import in generator_test.js
2023-06-20 23:22:44 +01:00

72 lines
2.6 KiB
JavaScript

/**
* @license
* Copyright 2016 Google LLC
* SPDX-License-Identifier: Apache-2.0
*/
/**
* @fileoverview Generating Lua for colour blocks.
*/
import * as goog from '../../closure/goog/goog.js';
goog.declareModuleId('Blockly.Lua.colour');
import {Order} from './lua_generator.js';
export function colour_picker(block, generator) {
// Colour picker.
const code = generator.quote_(block.getFieldValue('COLOUR'));
return [code, Order.ATOMIC];
};
export function colour_random(block, generator) {
// Generate a random colour.
const code = 'string.format("#%06x", math.random(0, 2^24 - 1))';
return [code, Order.HIGH];
};
export function colour_rgb(block, generator) {
// Compose a colour from RGB components expressed as percentages.
const functionName = generator.provideFunction_('colour_rgb', `
function ${generator.FUNCTION_NAME_PLACEHOLDER_}(r, g, b)
r = math.floor(math.min(100, math.max(0, r)) * 2.55 + .5)
g = math.floor(math.min(100, math.max(0, g)) * 2.55 + .5)
b = math.floor(math.min(100, math.max(0, b)) * 2.55 + .5)
return string.format("#%02x%02x%02x", r, g, b)
end
`);
const r = generator.valueToCode(block, 'RED', Order.NONE) || 0;
const g = generator.valueToCode(block, 'GREEN', Order.NONE) || 0;
const b = generator.valueToCode(block, 'BLUE', Order.NONE) || 0;
const code = functionName + '(' + r + ', ' + g + ', ' + b + ')';
return [code, Order.HIGH];
};
export function colour_blend(block, generator) {
// Blend two colours together.
const functionName = generator.provideFunction_('colour_blend', `
function ${generator.FUNCTION_NAME_PLACEHOLDER_}(colour1, colour2, ratio)
local r1 = tonumber(string.sub(colour1, 2, 3), 16)
local r2 = tonumber(string.sub(colour2, 2, 3), 16)
local g1 = tonumber(string.sub(colour1, 4, 5), 16)
local g2 = tonumber(string.sub(colour2, 4, 5), 16)
local b1 = tonumber(string.sub(colour1, 6, 7), 16)
local b2 = tonumber(string.sub(colour2, 6, 7), 16)
local ratio = math.min(1, math.max(0, ratio))
local r = math.floor(r1 * (1 - ratio) + r2 * ratio + .5)
local g = math.floor(g1 * (1 - ratio) + g2 * ratio + .5)
local b = math.floor(b1 * (1 - ratio) + b2 * ratio + .5)
return string.format("#%02x%02x%02x", r, g, b)
end
`);
const colour1 =
generator.valueToCode(block, 'COLOUR1', Order.NONE) || "'#000000'";
const colour2 =
generator.valueToCode(block, 'COLOUR2', Order.NONE) || "'#000000'";
const ratio = generator.valueToCode(block, 'RATIO', Order.NONE) || 0;
const code =
functionName + '(' + colour1 + ', ' + colour2 + ', ' + ratio + ')';
return [code, Order.HIGH];
};