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playtav: cue navigation using arrow keys

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minjaesong
2025-10-07 21:41:37 +09:00
parent 7474a9d472
commit 00e390d879
1 changed files with 43 additions and 3 deletions
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46
assets/disk0/tvdos/bin/playtav.js
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@@ -440,6 +440,7 @@ let totalFilesProcessed = 0
let decoderDbgInfo = {}
let cueElements = []
let currentCueIndex = -1 // Track current cue position
// Function to try reading next TAV file header at current position
function tryReadNextTAVHeader() {
@@ -583,6 +584,8 @@ function tryReadNextTAVHeader() {
return null
}
let lastKey = 0
// Playback loop - properly adapted from TEV with multi-file support
try {
let t1 = sys.nanoTime()
@@ -593,10 +596,42 @@ try {
// Handle interactive controls
if (interactive) {
sys.poke(-40, 1)
if (sys.peek(-41) == 67) { // Backspace
stopPlay = true
break
let keyCode = sys.peek(-41)
if (!lastKey) {
if (keyCode == 67) { // Backspace
stopPlay = true
break
}
else if (keyCode == 19 && cueElements.length > 0) { // Up arrow - previous cue
currentCueIndex = (currentCueIndex <= 0) ? cueElements.length - 1 : currentCueIndex - 1
let cue = cueElements[currentCueIndex]
if (cue.addressingMode === ADDRESSING_INTERNAL) {
serial.println(`Seeking to cue: ${cue.name} (offset ${cue.offset})`)
seqread.seek(cue.offset)
frameCount = 0
akku = FRAME_TIME
akku2 = 0.0
audio.purgeQueue(0)
}
}
else if (keyCode == 20 && cueElements.length > 0) { // Down arrow - next cue
currentCueIndex = (currentCueIndex >= cueElements.length - 1) ? 0 : currentCueIndex + 1
let cue = cueElements[currentCueIndex]
if (cue.addressingMode === ADDRESSING_INTERNAL) {
serial.println(`Seeking to cue: ${cue.name} (offset ${cue.offset})`)
seqread.seek(cue.offset)
frameCount = 0
akku = FRAME_TIME
akku2 = 0.0
audio.purgeQueue(0)
}
}
}
lastKey = keyCode
}
if (akku >= FRAME_TIME) {
@@ -615,6 +650,7 @@ try {
akku = 0.0
akku2 = 0.0
FRAME_TIME = 1.0 / header.fps
audio.purgeQueue(0)
currentFileIndex++
totalFilesProcessed++
@@ -851,8 +887,12 @@ finally {
console.log(`Playback failed with error ${errorlevel}`)
}
// reset font rom
sys.poke(-1299460, 20)
sys.poke(-1299460, 21)
audio.stop(0)
audio.purgeQueue(0)
}
graphics.setPalette(0, 0, 0, 0, 0)