v0.1.0 initial commit

2026-07-15 01:28:56 -04:00
commit 874abee663
35 changed files with 3486 additions and 0 deletions
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+package parameter
+
+// Row-reset funnels, drawn in the inter-tile gap row of the player lane.
+// Drop = jump expiry (falling to the base row), Rise = slide expiry.
+// %s is the countdown; formatted width must not exceed RenderNoteWidth
+const (
+	DropFunnelFormat = `\\ %s //`
+	RiseFunnelFormat = `// %s \\`
+)
+
+// Inbound — chords until the lane shuts.
+// Clear — chords until the lane reopens.
+// Open — the wall run reaches the window edge; the value is a lower bound.
+// Trap — the lane reopens for <= TrapGapMax chords before shutting again;
+// flagged on both the inbound and the clear timer
+const (
+	TimerInboundPrefix = '▼'
+	TimerClearPrefix   = '▲'
+	TimerOpenSuffix    = '+'
+	TimerTrapSuffix    = '!'
+)
+
+// StripEmptyChar is lookahead strip rail cell — a chord with no content at this position
+const StripEmptyChar = '·'
+
+// ItemFadeChars is the glyph tail of a consumed item's burn-out. Stage 0
+// keeps the item glyph; later stages collapse it into the rail cell
+var ItemFadeChars = [...]rune{'+', StripEmptyChar}
+
+// UnknownChar is placeholder for a Value with no authored visual.
+// Keeps NoteVisual total so an unrendered kind is visible rather than eating an item slot
+const UnknownChar = '?'
+
+// MutedText marks the host audio gate in the header. ASCII, so it
+// renders in both atlases
+const MutedText = "MUTE"
+
+// QuadrantChars provides 2x2 sub-cell resolution for TrueColor mode
+// Bitmap encoding: bit0=UL, bit1=UR, bit2=LL, bit3=LR
+// Layout: [UL][UR]
+//
+//	[LL][LR]
+var QuadrantChars = [16]rune{
+	' ', // 0000 - empty
+	'▘', // 0001 - upper-left
+	'▝', // 0010 - upper-right
+	'▀', // 0011 - upper half
+	'▖', // 0100 - lower-left
+	'▌', // 0101 - left half
+	'▞', // 0110 - anti-diagonal
+	'▛', // 0111 - UL + UR + LL
+	'▗', // 1000 - lower-right
+	'▚', // 1001 - diagonal
+	'▐', // 1010 - right half
+	'▜', // 1011 - UL + UR + LR
+	'▄', // 1100 - lower half
+	'▙', // 1101 - UL + LL + LR
+	'▟', // 1110 - UR + LL + LR
+	'█', // 1111 - full block
+}
+
+// Half256Chars provides vertical half-cell resolution for 256-color mode.
+// Unicode block characters, CP437-equivalent visuals, naked-TTY compatible
+// Bitmap encoding: bit0=top, bit1=bottom
+var Half256Chars = [4]rune{
+	' ',      // 00 - empty
+	'\u2580', // 01 - top half only (▀)
+	'\u2584', // 10 - bottom half only (▄)
+	'\u2588', // 11 - both halves (█)
+}
+
+// Horizontal256Chars provides horizontal half-cell characters.
+// Reserved for future horizontal sub-pixel support
+var Horizontal256Chars = [2]rune{
+	'\u258C', // ▌ - left half
+	'\u258E', // ▐ - right half
+}
+
+// Density256Chars provides intensity variants for trail and glow effects,
+// ordered lowest to highest density. Also indexes wall proximity bands
+var Density256Chars = [4]rune{
+	'\u2591', // ░ - light shade (25%)
+	'\u2592', // ▒ - medium shade (50%)
+	'\u2593', // ▓ - dark shade (75%)
+	'\u2588', // █ - full block (100%)
+}
+
+// Single-line box drawing characters
+const (
+	BorderSingleHorizontal     = '─' // U+2500
+	BorderSingleVertical       = '│' // U+2502
+	BorderSingleTopLeft        = '┌' // U+250C
+	BorderSingleTopRight       = '┐' // U+2510
+	BorderSingleBottomLeft     = '└' // U+2514
+	BorderSingleBottomRight    = '┘' // U+2518
+	BorderSingleVerticalRight  = '├' // U+251C
+	BorderSingleVerticalLeft   = '┤' // U+2524
+	BorderSingleHorizontalDown = '┬' // U+252C
+	BorderSingleHorizontalUp   = '┴' // U+2534
+	BorderSingleCross          = '┼' // U+253C
+)
+
+// Double-line box drawing characters
+const (
+	BorderDoubleHorizontal     = '═' // U+2550
+	BorderDoubleVertical       = '║' // U+2551
+	BorderDoubleTopLeft        = '╔' // U+2554
+	BorderDoubleTopRight       = '╗' // U+2557
+	BorderDoubleBottomLeft     = '╚' // U+255A
+	BorderDoubleBottomRight    = '╝' // U+255D
+	BorderDoubleVerticalRight  = '╠' // U+2560
+	BorderDoubleVerticalLeft   = '╣' // U+2563
+	BorderDoubleHorizontalDown = '╦' // U+2566
+	BorderDoubleHorizontalUp   = '╩' // U+2569
+	BorderDoubleCross          = '╬' // U+256C
+)