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End replays at 0xFF; ignore P2's input; delete old comments

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Eevee (Evelyn Woods) 2020-09-03 09:45:51 -06:00
parent 44978490ed
commit a36ca20b26
1 changed files with 8 additions and 11 deletions
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19
js/format-c2m.js
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@ -25,25 +25,19 @@ class CC2Demo {
let l = this.bytes.length; let l = this.bytes.length;
if (l % 2 === 0) { if (l % 2 === 0) {
l--; l--;
// TODO assert last byte is terminating 0xff
} }
let input = new Set; let input = new Set;
let t = 0; let t = 0;
// 47 left 33 down means
// LLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD
// | * * * | * * * | * * * | * * * | * * * | * * * | * *
// | * * * | * * * | * * * | * * * | * * * | * * * | * *
for (let p = 3; p < l; p += 2) { for (let p = 3; p < l; p += 2) {
// The first byte measures how long the /previous/ input remains // The first byte measures how long the /previous/ input remains
// valid, so yield that first. Note that this is measured in 60Hz // valid, so yield that first. Note that this is measured in 60Hz
// frames, so we need to convert to 20Hz tics by subtracting 3 // frames, so we need to convert to 20Hz tics by subtracting 3
// frames at a time. // frames at a time.
t += this.bytes[p]; let delay = this.bytes[p];
// t >= 4: almost right, desyncs just before yellow door if (delay === 0xff)
// t >= 3: skips a move, then desyncs trying to leave red door room break;
// t >= 2: skips a move, also desyncs before yellow door
// t >= 1: same as 2 t += delay;
// t >= 0: same as 3
while (t >= 3) { while (t >= 3) {
t -= 3; t -= 3;
yield input; yield input;
@ -52,6 +46,9 @@ class CC2Demo {
let input_mask = this.bytes[p + 1]; let input_mask = this.bytes[p + 1];
let is_player_2 = ((input_mask & 0x80) !== 0); let is_player_2 = ((input_mask & 0x80) !== 0);
// TODO handle player 2 // TODO handle player 2
if (is_player_2)
continue;
for (let [action, bit] of Object.entries(CC2_DEMO_INPUT_MASK)) { for (let [action, bit] of Object.entries(CC2_DEMO_INPUT_MASK)) {
if ((input_mask & bit) === 0) { if ((input_mask & bit) === 0) {
input.delete(action); input.delete(action);