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feat: add tetris shell (Tetris game TUI)

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Full-screen Tetris game using Bubbletea with title screen, ghost piece,
lock delay, NES-style scoring, configurable difficulty (easy/normal/hard),
and honeypot event logging. Bumps version to 0.17.0.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
Torjus Håkestad
2026-02-20 00:59:46 +01:00
parent c9d143d84b
commit 62de222488
10 changed files with 1590 additions and 2 deletions
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101
internal/shell/tetris/data.go Normal file
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package tetris
import "github.com/charmbracelet/lipgloss"
// pieceType identifies a tetromino (0–6).
type pieceType int
const (
pieceI pieceType = iota
pieceO
pieceT
pieceS
pieceZ
pieceJ
pieceL
)
const numPieceTypes = 7
// Standard Tetris colors.
var pieceColors = [numPieceTypes]lipgloss.Color{
lipgloss.Color("#00FFFF"), // I — cyan
lipgloss.Color("#FFFF00"), // O — yellow
lipgloss.Color("#AA00FF"), // T — purple
lipgloss.Color("#00FF00"), // S — green
lipgloss.Color("#FF0000"), // Z — red
lipgloss.Color("#0000FF"), // J — blue
lipgloss.Color("#FF8800"), // L — orange
}
// Each piece has 4 rotations, each rotation is a list of (row, col) offsets
// relative to the piece origin.
type rotation [4][2]int
var pieces = [numPieceTypes][4]rotation{
// I
{
{[2]int{0, 0}, [2]int{0, 1}, [2]int{0, 2}, [2]int{0, 3}},
{[2]int{0, 0}, [2]int{1, 0}, [2]int{2, 0}, [2]int{3, 0}},
{[2]int{0, 0}, [2]int{0, 1}, [2]int{0, 2}, [2]int{0, 3}},
{[2]int{0, 0}, [2]int{1, 0}, [2]int{2, 0}, [2]int{3, 0}},
},
// O
{
{[2]int{0, 0}, [2]int{0, 1}, [2]int{1, 0}, [2]int{1, 1}},
{[2]int{0, 0}, [2]int{0, 1}, [2]int{1, 0}, [2]int{1, 1}},
{[2]int{0, 0}, [2]int{0, 1}, [2]int{1, 0}, [2]int{1, 1}},
{[2]int{0, 0}, [2]int{0, 1}, [2]int{1, 0}, [2]int{1, 1}},
},
// T
{
{[2]int{0, 0}, [2]int{0, 1}, [2]int{0, 2}, [2]int{1, 1}},
{[2]int{0, 0}, [2]int{1, 0}, [2]int{2, 0}, [2]int{1, 1}},
{[2]int{0, 1}, [2]int{1, 0}, [2]int{1, 1}, [2]int{1, 2}},
{[2]int{0, 1}, [2]int{1, 0}, [2]int{1, 1}, [2]int{2, 1}},
},
// S
{
{[2]int{0, 1}, [2]int{0, 2}, [2]int{1, 0}, [2]int{1, 1}},
{[2]int{0, 0}, [2]int{1, 0}, [2]int{1, 1}, [2]int{2, 1}},
{[2]int{0, 1}, [2]int{0, 2}, [2]int{1, 0}, [2]int{1, 1}},
{[2]int{0, 0}, [2]int{1, 0}, [2]int{1, 1}, [2]int{2, 1}},
},
// Z
{
{[2]int{0, 0}, [2]int{0, 1}, [2]int{1, 1}, [2]int{1, 2}},
{[2]int{0, 1}, [2]int{1, 0}, [2]int{1, 1}, [2]int{2, 0}},
{[2]int{0, 0}, [2]int{0, 1}, [2]int{1, 1}, [2]int{1, 2}},
{[2]int{0, 1}, [2]int{1, 0}, [2]int{1, 1}, [2]int{2, 0}},
},
// J
{
{[2]int{0, 0}, [2]int{1, 0}, [2]int{1, 1}, [2]int{1, 2}},
{[2]int{0, 0}, [2]int{0, 1}, [2]int{1, 0}, [2]int{2, 0}},
{[2]int{0, 0}, [2]int{0, 1}, [2]int{0, 2}, [2]int{1, 2}},
{[2]int{0, 0}, [2]int{1, 0}, [2]int{2, 0}, [2]int{2, 1}},
},
// L
{
{[2]int{0, 2}, [2]int{1, 0}, [2]int{1, 1}, [2]int{1, 2}},
{[2]int{0, 0}, [2]int{1, 0}, [2]int{2, 0}, [2]int{2, 1}},
{[2]int{0, 0}, [2]int{0, 1}, [2]int{0, 2}, [2]int{1, 0}},
{[2]int{0, 0}, [2]int{0, 1}, [2]int{1, 1}, [2]int{2, 1}},
},
}
// spawnCol returns the starting column for a piece, centering it on the board.
func spawnCol(pt pieceType, rot int) int {
shape := pieces[pt][rot]
minC, maxC := shape[0][1], shape[0][1]
for _, off := range shape {
if off[1] < minC {
minC = off[1]
}
if off[1] > maxC {
maxC = off[1]
}
}
width := maxC - minC + 1
return (boardCols - width) / 2
}