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Fix snake border alignment using visibleWidth for proper ANSI length calculation

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This commit is contained in:
Mario Zechner 2025-12-27 03:36:15 +01:00
parent b47151a04f
commit 6977bc73ca
1 changed files with 7 additions and 12 deletions
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19
packages/coding-agent/examples/hooks/snake.ts
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@ -2,7 +2,7 @@
* Snake game hook - play snake with /snake command
*/
import { isArrowDown, isArrowLeft, isArrowRight, isArrowUp, isEscape } from "@mariozechner/pi-tui";
import { isArrowDown, isArrowLeft, isArrowRight, isArrowUp, isEscape, visibleWidth } from "@mariozechner/pi-tui";
import type { HookAPI } from "../../src/core/hooks/types.js";
const GAME_WIDTH = 40;
@ -226,7 +226,8 @@ class SnakeComponent {
const boxWidth = effectiveWidth * cellWidth;
// Helper to pad content inside box
const boxLine = (content: string, contentLen: number) => {
const boxLine = (content: string) => {
const contentLen = visibleWidth(content);
const padding = Math.max(0, boxWidth - contentLen);
return dim(" │") + content + " ".repeat(padding) + dim("│");
};
@ -237,10 +238,8 @@ class SnakeComponent {
// Header with score
const scoreText = `Score: ${bold(yellow(String(this.state.score)))}`;
const highText = `High: ${bold(yellow(String(this.state.highScore)))}`;
const title = `${bold(green("🐍 SNAKE"))} │ ${scoreText} │ ${highText}`;
// Approximate visible length (emojis and formatting make this tricky)
const titleLen = 8 + 3 + 7 + String(this.state.score).length + 3 + 6 + String(this.state.highScore).length;
lines.push(this.padLine(boxLine(title, titleLen), width));
const title = `${bold(green("SNAKE"))} │ ${scoreText} │ ${highText}`;
lines.push(this.padLine(boxLine(title), width));
// Separator
lines.push(this.padLine(dim(` ├${"─".repeat(boxWidth)}┤`), width));
@ -271,18 +270,14 @@ class SnakeComponent {
// Footer
let footer: string;
let footerLen: number;
if (this.paused) {
footer = `${yellow(bold("PAUSED"))} Press any key to continue, ${bold("Q")} to quit`;
footerLen = 42;
} else if (this.state.gameOver) {
footer = `${red(bold("GAME OVER!"))} Press ${bold("R")} to restart, ${bold("Q")} to quit`;
footerLen = 40;
} else {
footer = dim(`↑↓←→ or WASD to move, ${bold("ESC")} pause, ${bold("Q")} quit`);
footerLen = 38;
footer = `↑↓←→ or WASD to move, ${bold("ESC")} pause, ${bold("Q")} quit`;
}
lines.push(this.padLine(boxLine(footer, footerLen), width));
lines.push(this.padLine(boxLine(footer), width));
// Bottom border
lines.push(this.padLine(dim(` ╰${"─".repeat(boxWidth)}╯`), width));