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a939fec53b
* refactor: convert generators/lua/colour.js to goog.module * refactor: convert generators/lua/colour.js to named requires * chore: run clang-format * refactor: convert generators/lua/lists.js to goog.module * refactor: convert generators/lua/lists.js to named requires * chore: run clang-format * fix: use getListIndex helper function in lua list generators * refactor: convert generators/lua/logic.js to goog.module * refactor: convert generators/lua/logic.js to named requires * chore: run clang-format * refactor: convert generators/lua/loops.js to goog.module * refactor: convert generators/lua/loops.js to named requires * chore: run clang-format * refactor: convert generators/lua/math.js to goog.module * refactor: convert generators/lua/math.js to named requires * chore: run clang-format * refcator: convert generators/lua/procedures.js to goog.module * refactor: convert generators/lua/procedures.js to named requires * chore: run clang-format * chore: rebuild deps.js * refactor: convert generators/lua/text.js to goog.module * refactor: convert generators/lua/text.js to named requires * refactor: convert generators/lua/variables_dynamic.js to goog.module * refactor: convert generators/lua/variables_dynamic.js to named requires * chore: run clang-format on text.js * refactor: convert generators/lua/variables.js to goog.module * refactor: convert generators/lua/variables.js to named requires * chore: run clang-format * chore: make a lua generator function internal * chore: rebuild deps.js
70 lines
2.6 KiB
JavaScript
70 lines
2.6 KiB
JavaScript
/**
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* @license
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* Copyright 2016 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 Lua for colour blocks.
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*/
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'use strict';
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goog.module('Blockly.Lua.colour');
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const Lua = goog.require('Blockly.Lua');
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Lua['colour_picker'] = function(block) {
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// Colour picker.
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const code = Lua.quote_(block.getFieldValue('COLOUR'));
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return [code, Lua.ORDER_ATOMIC];
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};
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Lua['colour_random'] = function(block) {
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// Generate a random colour.
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const code = 'string.format("#%06x", math.random(0, 2^24 - 1))';
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return [code, Lua.ORDER_HIGH];
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};
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Lua['colour_rgb'] = function(block) {
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// Compose a colour from RGB components expressed as percentages.
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const functionName = Lua.provideFunction_('colour_rgb', [
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'function ' + Lua.FUNCTION_NAME_PLACEHOLDER_ + '(r, g, b)',
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' r = math.floor(math.min(100, math.max(0, r)) * 2.55 + .5)',
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' g = math.floor(math.min(100, math.max(0, g)) * 2.55 + .5)',
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' b = math.floor(math.min(100, math.max(0, b)) * 2.55 + .5)',
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' return string.format("#%02x%02x%02x", r, g, b)', 'end'
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]);
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const r = Lua.valueToCode(block, 'RED', Lua.ORDER_NONE) || 0;
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const g = Lua.valueToCode(block, 'GREEN', Lua.ORDER_NONE) || 0;
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const b = Lua.valueToCode(block, 'BLUE', Lua.ORDER_NONE) || 0;
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const code = functionName + '(' + r + ', ' + g + ', ' + b + ')';
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return [code, Lua.ORDER_HIGH];
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};
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Lua['colour_blend'] = function(block) {
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// Blend two colours together.
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const functionName = Lua.provideFunction_('colour_blend', [
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'function ' + Lua.FUNCTION_NAME_PLACEHOLDER_ + '(colour1, colour2, ratio)',
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' local r1 = tonumber(string.sub(colour1, 2, 3), 16)',
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' local r2 = tonumber(string.sub(colour2, 2, 3), 16)',
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' local g1 = tonumber(string.sub(colour1, 4, 5), 16)',
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' local g2 = tonumber(string.sub(colour2, 4, 5), 16)',
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' local b1 = tonumber(string.sub(colour1, 6, 7), 16)',
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' local b2 = tonumber(string.sub(colour2, 6, 7), 16)',
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' local ratio = math.min(1, math.max(0, ratio))',
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' local r = math.floor(r1 * (1 - ratio) + r2 * ratio + .5)',
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' local g = math.floor(g1 * (1 - ratio) + g2 * ratio + .5)',
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' local b = math.floor(b1 * (1 - ratio) + b2 * ratio + .5)',
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' return string.format("#%02x%02x%02x", r, g, b)', 'end'
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]);
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const colour1 =
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Lua.valueToCode(block, 'COLOUR1', Lua.ORDER_NONE) || '\'#000000\'';
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const colour2 =
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Lua.valueToCode(block, 'COLOUR2', Lua.ORDER_NONE) || '\'#000000\'';
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const ratio = Lua.valueToCode(block, 'RATIO', Lua.ORDER_NONE) || 0;
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const code =
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functionName + '(' + colour1 + ', ' + colour2 + ', ' + ratio + ')';
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return [code, Lua.ORDER_HIGH];
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};
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