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Code Issues Releases Wiki Activity

Further conductor/bpm stuff

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This commit is contained in:
Eric Myllyoja 2022-09-23 00:49:42 -04:00
parent 9ebb566b2a
commit bb5ed65d27
3 changed files with 49 additions and 150 deletions
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65
source/funkin/Conductor.hx
View file

@ -1,5 +1,6 @@
package funkin;
import flixel.util.FlxSignal;
import funkin.SongLoad.SwagSong;
import funkin.play.song.Song.SongDifficulty;
import funkin.play.song.SongData.ConductorTimeChange;
@ -18,12 +19,12 @@ class Conductor
* The list of time changes in the song.
* There should be at least one time change (at the beginning of the song) to define the BPM.
*/
private static var timeChanges:Array<ConductorTimeChange> = [];
private static var timeChanges:Array<SongTimeChange> = [];
/**
* The current time change.
*/
private static var currentTimeChange:ConductorTimeChange;
private static var currentTimeChange:SongTimeChange;
/**
* The current position in the song in milliseconds.
@ -81,12 +82,15 @@ class Conductor
return currentStep;
}
public static var beatHit(default, null):FlxSignal = new FlxSignal();
public static var stepHit(default, null):FlxSignal = new FlxSignal();
public static var lastSongPos:Float;
public static var visualOffset:Float = 0;
public static var audioOffset:Float = 0;
public static var offset:Float = 0;
public function new()
private function new()
{
}
@ -120,8 +124,30 @@ class Conductor
*/
public static function update(songPosition:Float)
{
Conductor.songPosition = songPosition;
Conductor.bpm = Conductor.getLastBPMChange().bpm;
var oldBeat = currentBeat;
var oldStep = currentStep;
songPosition = songPosition;
bpm = Conductor.getLastBPMChange().bpm;
for (i in 0...timeChanges.length)
{
if (songPosition >= timeChanges[i].songTime)
currentTimeChange = timeChanges[i];
if (songPosition < timeChanges[i].songTime)
break;
}
currentStep = (currentTimeChange.beatTime * 4) + (songPosition - currentTimeChange.songTime) / stepCrochet;
currentBeat = Math.floor(currentStep / 4);
// FlxSignals are really cool.
if (currentStep != oldStep)
stepHit.dispatch();
if (currentBeat != oldBeat)
beatHit.dispatch();
}
public static function mapBPMChanges(song:SwagSong)
@ -157,23 +183,24 @@ class Conductor
timeChanges = [];
for (songTimeChange in timeChanges)
for (currentTimeChange in timeChanges)
{
var prevTimeChange:ConductorTimeChange = timeChanges.length == 0 ? null : timeChanges[timeChanges.length - 1];
var currentTimeChange:ConductorTimeChange = cast songTimeChange;
var prevTimeChange:SongTimeChange = timeChanges.length == 0 ? null : timeChanges[timeChanges.length - 1];
if (prevTimeChange != null)
{
var deltaTime:Float = currentTimeChange.timeStamp - prevTimeChange.timeStamp;
var deltaSteps:Int = Math.round(deltaTime / (60 / prevTimeChange.bpm) * 1000 / 4);
/*
if (prevTimeChange != null)
{
var deltaTime:Float = currentTimeChange.timeStamp - prevTimeChange.timeStamp;
var deltaSteps:Int = Math.round(deltaTime / (60 / prevTimeChange.bpm) * 1000 / 4);
currentTimeChange.stepTime = prevTimeChange.stepTime + deltaSteps;
}
else
{
// We know the time and steps of this time change is 0, since this is the first time change.
currentTimeChange.stepTime = 0;
}
currentTimeChange.stepTime = prevTimeChange.stepTime + deltaSteps;
}
else
{
// We know the time and steps of this time change is 0, since this is the first time change.
currentTimeChange.stepTime = 0;
}
*/
timeChanges.push(currentTimeChange);
}

27
source/funkin/MusicBeatState.hx
View file

@ -115,37 +115,16 @@ class MusicBeatState extends FlxUIState
FlxG.resetState();
}
private function updateBeat():Void
{
curBeat = Math.floor(curStep / 4);
}
private function updateCurStep():Void
{
var lastChange:BPMChangeEvent = {
stepTime: 0,
songTime: 0,
bpm: 0
}
for (i in 0...Conductor.bpmChangeMap.length)
{
if (Conductor.songPosition >= Conductor.bpmChangeMap[i].songTime)
lastChange = Conductor.bpmChangeMap[i];
}
curStep = lastChange.stepTime + Math.floor((Conductor.songPosition - lastChange.songTime) / Conductor.stepCrochet);
}
public function stepHit():Bool
{
var event = new SongTimeScriptEvent(ScriptEvent.SONG_STEP_HIT, curBeat, curStep);
var event = new SongTimeScriptEvent(ScriptEvent.SONG_STEP_HIT, Conductor.currentBeat, Conductor.currentStep);
dispatchEvent(event);
if (event.eventCanceled)
return false;
if (curStep % 4 == 0)
if (Conductor.currentStep % 4 == 0)
beatHit();
return true;
@ -153,7 +132,7 @@ class MusicBeatState extends FlxUIState
public function beatHit():Bool
{
var event = new SongTimeScriptEvent(ScriptEvent.SONG_BEAT_HIT, curBeat, curStep);
var event = new SongTimeScriptEvent(ScriptEvent.SONG_BEAT_HIT, Conductor.currentBeat, Conductor.currentStep);
dispatchEvent(event);

107
source/funkin/play/song/SongData.hx
View file

@ -709,113 +709,6 @@ abstract SongTimeChange(RawSongTimeChange)
}
}
abstract ConductorTimeChange(RawConductorTimeChange)
{
public function new(timeStamp:Float, beatTime:Int, bpm:Float, timeSignatureNum:Int = 4, timeSignatureDen:Int = 4, beatTuplets:Array<Int>)
{
this = {
t: timeStamp,
b: beatTime,
bpm: bpm,
n: timeSignatureNum,
d: timeSignatureDen,
bt: beatTuplets,
st: 0.0
}
}
public var timeStamp(get, set):Float;
public function get_timeStamp():Float
{
return this.t;
}
public function set_timeStamp(value:Float):Float
{
return this.t = value;
}
public var beatTime(get, set):Int;
public function get_beatTime():Int
{
return this.b;
}
public function set_beatTime(value:Int):Int
{
return this.b = value;
}
public var bpm(get, set):Float;
public function get_bpm():Float
{
return this.bpm;
}
public function set_bpm(value:Float):Float
{
return this.bpm = value;
}
public var timeSignatureNum(get, set):Int;
public function get_timeSignatureNum():Int
{
return this.n;
}
public function set_timeSignatureNum(value:Int):Int
{
return this.n = value;
}
public var timeSignatureDen(get, set):Int;
public function get_timeSignatureDen():Int
{
return this.d;
}
public function set_timeSignatureDen(value:Int):Int
{
return this.d = value;
}
public var beatTuplets(get, set):Array<Int>;
public function get_beatTuplets():Array<Int>
{
if (Std.isOfType(this.bt, Int))
{
return [this.bt];
}
else
{
return this.bt;
}
}
public function set_beatTuplets(value:Array<Int>):Array<Int>
{
return this.bt = value;
}
public var stepTime(get, set):Float;
public function get_stepTime():Float
{
return this.st;
}
public function set_stepTime(value:Float):Float
{
return this.st = value;
}
}
enum abstract SongTimeFormat(String) from String to String
{
var TICKS = "ticks";