mirror of
https://github.com/ninjamuffin99/Funkin.git
synced 2024-09-11 20:57:20 +00:00
Refactor conductor (crochet->lengthMs)
This commit is contained in:
EliteMasterEric
parent
6ac4db48d9
commit
f6c38f9bdd
|
|
@ -1,9 +1,8 @@
|
|||
package funkin;
|
||||
|
||||
import flixel.util.FlxSignal;
|
||||
import funkin.SongLoad.SwagSong;
|
||||
import funkin.play.song.Song.SongDifficulty;
|
||||
import funkin.play.song.SongData.SongTimeChange;
|
||||
import flixel.util.FlxSignal;
|
||||
import funkin.play.song.Song.SongDifficulty;
|
||||
|
||||
typedef BPMChangeEvent =
|
||||
{
|
||||
|
|
@ -12,18 +11,27 @@ typedef BPMChangeEvent =
|
|||
var bpm:Float;
|
||||
}
|
||||
|
||||
/**
|
||||
* A global source of truth for timing information.
|
||||
*/
|
||||
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.
|
||||
*/
|
||||
static var timeChanges:Array<SongTimeChange> = [];
|
||||
static final STEPS_PER_BEAT:Int = 4;
|
||||
|
||||
/**
|
||||
* The current time change.
|
||||
*/
|
||||
static var currentTimeChange:SongTimeChange;
|
||||
// onBeatHit is called every quarter note
|
||||
// onStepHit is called every sixteenth note
|
||||
// 4/4 = 4 beats per measure = 16 steps per measure
|
||||
// 120 BPM = 120 quarter notes per minute = 2 onBeatHit per second
|
||||
// 120 BPM = 480 sixteenth notes per minute = 8 onStepHit per second
|
||||
// 60 BPM = 60 quarter notes per minute = 1 onBeatHit per second
|
||||
// 60 BPM = 240 sixteenth notes per minute = 4 onStepHit per second
|
||||
// 3/4 = 3 beats per measure = 12 steps per measure
|
||||
// (IDENTICAL TO 4/4 but shorter measure length)
|
||||
// 120 BPM = 120 quarter notes per minute = 2 onBeatHit per second
|
||||
// 120 BPM = 480 sixteenth notes per minute = 8 onStepHit per second
|
||||
// 60 BPM = 60 quarter notes per minute = 1 onBeatHit per second
|
||||
// 60 BPM = 240 sixteenth notes per minute = 4 onStepHit per second
|
||||
// 7/8 = 3.5 beats per measure = 14 steps per measure
|
||||
|
||||
/**
|
||||
* The current position in the song in milliseconds.
|
||||
|
|
@ -47,8 +55,25 @@ class Conductor
|
|||
|
||||
static var bpmOverride:Null<Float> = null;
|
||||
|
||||
// OLD, replaced with timeChanges.
|
||||
public static var bpmChangeMap:Array<BPMChangeEvent> = [];
|
||||
/**
|
||||
* Current position in the song, in whole measures.
|
||||
*/
|
||||
public static var currentMeasure(default, null):Int;
|
||||
|
||||
/**
|
||||
* Current position in the song, in whole beats.
|
||||
**/
|
||||
public static var currentBeat(default, null):Int;
|
||||
|
||||
/**
|
||||
* Current position in the song, in whole steps.
|
||||
*/
|
||||
public static var currentStep(default, null):Int;
|
||||
|
||||
/**
|
||||
* Current position in the song, in steps and fractions of a step.
|
||||
*/
|
||||
public static var currentStepTime(default, null):Float;
|
||||
|
||||
/**
|
||||
* Duration of a measure in milliseconds. Calculated based on bpm.
|
||||
|
|
@ -57,29 +82,33 @@ class Conductor
|
|||
|
||||
static function get_measureLengthMs():Float
|
||||
{
|
||||
return crochet * timeSignatureNumerator;
|
||||
return beatLengthMs * timeSignatureNumerator;
|
||||
}
|
||||
|
||||
/**
|
||||
* Duration of a beat in millisecond. Calculated based on bpm.
|
||||
* Duration of a beat (quarter note) in milliseconds. Calculated based on bpm.
|
||||
*/
|
||||
public static var crochet(get, null):Float;
|
||||
public static var beatLengthMs(get, null):Float;
|
||||
|
||||
static function get_crochet():Float
|
||||
static function get_beatLengthMs():Float
|
||||
{
|
||||
// Tied directly to BPM.
|
||||
return ((60 / bpm) * 1000);
|
||||
}
|
||||
|
||||
/**
|
||||
* Duration of a step (quarter) in milliseconds. Calculated based on bpm.
|
||||
* Duration of a step (sixteenth) in milliseconds. Calculated based on bpm.
|
||||
*/
|
||||
public static var stepCrochet(get, null):Float;
|
||||
public static var stepLengthMs(get, null):Float;
|
||||
|
||||
static function get_stepCrochet():Float
|
||||
static function get_stepLengthMs():Float
|
||||
{
|
||||
return crochet / timeSignatureNumerator;
|
||||
return beatLengthMs / STEPS_PER_BEAT;
|
||||
}
|
||||
|
||||
/**
|
||||
* The numerator of the current time signature (number of notes in a measure)
|
||||
*/
|
||||
public static var timeSignatureNumerator(get, null):Int;
|
||||
|
||||
static function get_timeSignatureNumerator():Int
|
||||
|
|
@ -89,6 +118,9 @@ class Conductor
|
|||
return currentTimeChange.timeSignatureNum;
|
||||
}
|
||||
|
||||
/**
|
||||
* The numerator of the current time signature (length of notes in a measure)
|
||||
*/
|
||||
public static var timeSignatureDenominator(get, null):Int;
|
||||
|
||||
static function get_timeSignatureDenominator():Int
|
||||
|
|
@ -98,30 +130,57 @@ class Conductor
|
|||
return currentTimeChange.timeSignatureDen;
|
||||
}
|
||||
|
||||
/**
|
||||
* Current position in the song, in beats.
|
||||
**/
|
||||
public static var currentBeat(default, null):Int;
|
||||
|
||||
/**
|
||||
* Current position in the song, in steps.
|
||||
*/
|
||||
public static var currentStep(default, null):Int;
|
||||
|
||||
/**
|
||||
* Current position in the song, in steps and fractions of a step.
|
||||
*/
|
||||
public static var currentStepTime(default, null):Float;
|
||||
|
||||
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;
|
||||
|
||||
// TODO: Add code to update this.
|
||||
// TODO: What's the difference between visualOffset and audioOffset?
|
||||
public static var visualOffset:Float = 0;
|
||||
public static var audioOffset:Float = 0;
|
||||
|
||||
//
|
||||
// Signals
|
||||
//
|
||||
|
||||
/**
|
||||
* Signal that is dispatched every measure.
|
||||
* At 120 BPM 4/4, this is dispatched every 2 seconds.
|
||||
* At 120 BPM 3/4, this is dispatched every 1.5 seconds.
|
||||
*/
|
||||
public static var measureHit(default, null):FlxSignal = new FlxSignal();
|
||||
|
||||
/**
|
||||
* Signal that is dispatched every beat.
|
||||
* At 120 BPM 4/4, this is dispatched every 0.5 seconds.
|
||||
* At 120 BPM 3/4, this is dispatched every 0.5 seconds.
|
||||
*/
|
||||
public static var beatHit(default, null):FlxSignal = new FlxSignal();
|
||||
|
||||
/**
|
||||
* Signal that is dispatched when a step is hit.
|
||||
* At 120 BPM 4/4, this is dispatched every 0.125 seconds.
|
||||
* At 120 BPM 3/4, this is dispatched every 0.125 seconds.
|
||||
*/
|
||||
public static var stepHit(default, null):FlxSignal = new FlxSignal();
|
||||
|
||||
//
|
||||
// Internal Variables
|
||||
//
|
||||
|
||||
/**
|
||||
* 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.
|
||||
*/
|
||||
static var timeChanges:Array<SongTimeChange> = [];
|
||||
|
||||
/**
|
||||
* The current time change.
|
||||
*/
|
||||
static var currentTimeChange:SongTimeChange;
|
||||
|
||||
public static var lastSongPos:Float;
|
||||
|
||||
/**
|
||||
* The number of beats (whole notes) in a measure.
|
||||
*/
|
||||
public static var beatsPerMeasure(get, null):Int;
|
||||
|
||||
static function get_beatsPerMeasure():Int
|
||||
|
|
@ -129,33 +188,17 @@ class Conductor
|
|||
return timeSignatureNumerator;
|
||||
}
|
||||
|
||||
/**
|
||||
* The number of steps (quarter-notes) in a measure.
|
||||
*/
|
||||
public static var stepsPerMeasure(get, null):Int;
|
||||
|
||||
static function get_stepsPerMeasure():Int
|
||||
{
|
||||
// Is this always x4?
|
||||
// This is always 4, b
|
||||
return timeSignatureNumerator * 4;
|
||||
}
|
||||
|
||||
function new() {}
|
||||
|
||||
public static function getLastBPMChange()
|
||||
{
|
||||
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];
|
||||
|
||||
if (Conductor.songPosition < Conductor.bpmChangeMap[i].songTime) break;
|
||||
}
|
||||
return lastChange;
|
||||
}
|
||||
|
||||
/**
|
||||
* Forcibly defines the current BPM of the song.
|
||||
* Useful for things like the chart editor that need to manipulate BPM in real time.
|
||||
|
|
@ -165,11 +208,16 @@ class Conductor
|
|||
* WARNING: Avoid this for things like setting the BPM of the title screen music,
|
||||
* you should have a metadata file for it instead.
|
||||
*/
|
||||
public static function forceBPM(?bpm:Float = null)
|
||||
public static function forceBPM(?bpm:Float = null):Void
|
||||
{
|
||||
if (bpm != null) trace('[CONDUCTOR] Forcing BPM to ' + bpm);
|
||||
if (bpm != null)
|
||||
{
|
||||
trace('[CONDUCTOR] Forcing BPM to ' + bpm);
|
||||
}
|
||||
else
|
||||
{
|
||||
trace('[CONDUCTOR] Resetting BPM to default');
|
||||
}
|
||||
Conductor.bpmOverride = bpm;
|
||||
}
|
||||
|
||||
|
|
@ -180,15 +228,15 @@ class Conductor
|
|||
* @param songPosition The current position in the song in milliseconds.
|
||||
* Leave blank to use the FlxG.sound.music position.
|
||||
*/
|
||||
public static function update(songPosition:Float = null)
|
||||
public static function update(songPosition:Float = null):Void
|
||||
{
|
||||
if (songPosition == null) songPosition = (FlxG.sound.music != null) ? FlxG.sound.music.time + Conductor.offset : 0.0;
|
||||
|
||||
var oldBeat = currentBeat;
|
||||
var oldStep = currentStep;
|
||||
var oldMeasure:Int = currentMeasure;
|
||||
var oldBeat:Int = currentBeat;
|
||||
var oldStep:Int = currentStep;
|
||||
|
||||
Conductor.songPosition = songPosition;
|
||||
// Conductor.bpm = Conductor.getLastBPMChange().bpm;
|
||||
|
||||
currentTimeChange = timeChanges[0];
|
||||
for (i in 0...timeChanges.length)
|
||||
|
|
@ -204,14 +252,14 @@ class Conductor
|
|||
}
|
||||
else if (currentTimeChange != null)
|
||||
{
|
||||
currentStepTime = (currentTimeChange.beatTime * 4) + (songPosition - currentTimeChange.timeStamp) / stepCrochet;
|
||||
currentStepTime = (currentTimeChange.beatTime * 4) + (songPosition - currentTimeChange.timeStamp) / stepLengthMs;
|
||||
currentStep = Math.floor(currentStepTime);
|
||||
currentBeat = Math.floor(currentStep / 4);
|
||||
}
|
||||
else
|
||||
{
|
||||
// Assume a constant BPM equal to the forced value.
|
||||
currentStepTime = (songPosition / stepCrochet);
|
||||
currentStepTime = (songPosition / stepLengthMs);
|
||||
currentStep = Math.floor(currentStepTime);
|
||||
currentBeat = Math.floor(currentStep / 4);
|
||||
}
|
||||
|
|
@ -226,37 +274,14 @@ class Conductor
|
|||
{
|
||||
beatHit.dispatch();
|
||||
}
|
||||
}
|
||||
|
||||
@:deprecated // Switch to TimeChanges instead.
|
||||
public static function mapBPMChanges(song:SwagSong)
|
||||
{
|
||||
bpmChangeMap = [];
|
||||
|
||||
var curBPM:Float = song.bpm;
|
||||
var totalSteps:Int = 0;
|
||||
var totalPos:Float = 0;
|
||||
for (i in 0...SongLoad.getSong().length)
|
||||
if (currentMeasure != oldMeasure)
|
||||
{
|
||||
if (SongLoad.getSong()[i].changeBPM && SongLoad.getSong()[i].bpm != curBPM)
|
||||
{
|
||||
curBPM = SongLoad.getSong()[i].bpm;
|
||||
var event:BPMChangeEvent =
|
||||
{
|
||||
stepTime: totalSteps,
|
||||
songTime: totalPos,
|
||||
bpm: curBPM
|
||||
};
|
||||
bpmChangeMap.push(event);
|
||||
}
|
||||
|
||||
var deltaSteps:Int = SongLoad.getSong()[i].lengthInSteps;
|
||||
totalSteps += deltaSteps;
|
||||
totalPos += ((60 / curBPM) * 1000 / 4) * deltaSteps;
|
||||
measureHit.dispatch();
|
||||
}
|
||||
}
|
||||
|
||||
public static function mapTimeChanges(songTimeChanges:Array<SongTimeChange>)
|
||||
public static function mapTimeChanges(songTimeChanges:Array<SongTimeChange>):Void
|
||||
{
|
||||
timeChanges = [];
|
||||
|
||||
|
|
@ -278,7 +303,7 @@ class Conductor
|
|||
if (timeChanges.length == 0)
|
||||
{
|
||||
// Assume a constant BPM equal to the forced value.
|
||||
return Math.floor(ms / stepCrochet);
|
||||
return Math.floor(ms / stepLengthMs);
|
||||
}
|
||||
else
|
||||
{
|
||||
|
|
@ -299,7 +324,7 @@ class Conductor
|
|||
}
|
||||
}
|
||||
|
||||
resultStep += Math.floor((ms - lastTimeChange.timeStamp) / stepCrochet);
|
||||
resultStep += Math.floor((ms - lastTimeChange.timeStamp) / stepLengthMs);
|
||||
|
||||
return resultStep;
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in a new issue