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Funkin/tests/unit/source/funkin/ConductorTest.hx
2023-12-14 16:56:20 -05:00

510 lines
19 KiB
Haxe

package funkin;
import flixel.FlxG;
import flixel.FlxState;
import funkin.Conductor;
import funkin.data.song.SongData.SongTimeChange;
import funkin.util.Constants;
import massive.munit.Assert;
@:nullSafety
@:access(funkin.Conductor)
class ConductorTest extends FunkinTest
{
var conductorState:Null<ConductorState> = null;
@Before
function before()
{
FunkinAssert.initAssertTrace();
resetGame();
// The ConductorState will advance the conductor when step() is called.
FlxG.switchState(conductorState = new ConductorState());
Conductor.reset();
}
@Test
function testDefaultValues():Void
{
// NOTE: Expected value comes first.
Assert.areEqual([], Conductor.instance.timeChanges);
Assert.areEqual(null, Conductor.instance.currentTimeChange);
Assert.areEqual(0, Conductor.instance.songPosition);
Assert.areEqual(Constants.DEFAULT_BPM, Conductor.instance.bpm);
Assert.areEqual(null, Conductor.instance.bpmOverride);
Assert.areEqual(600, Conductor.instance.beatLengthMs);
Assert.areEqual(4, Conductor.instance.timeSignatureNumerator);
Assert.areEqual(4, Conductor.instance.timeSignatureDenominator);
Assert.areEqual(0, Conductor.instance.currentBeat);
Assert.areEqual(0, Conductor.instance.currentStep);
Assert.areEqual(0.0, Conductor.instance.currentStepTime);
Assert.areEqual(150, Conductor.instance.stepLengthMs);
}
/**
* Tests implementation of `update()`, and how it affects
* `currentBeat`, `currentStep`, `currentStepTime`, and the `beatHit` and `stepHit` signals.
*/
@Test
function testUpdate():Void
{
var currentConductorState:Null<ConductorState> = conductorState;
Assert.isNotNull(currentConductorState);
Assert.areEqual(0, Conductor.instance.songPosition);
step(); // 1
var BPM_100_STEP_TIME = 1 / 9;
FunkinAssert.areNear(FunkinTest.MS_PER_STEP * 1, Conductor.instance.songPosition);
Assert.areEqual(0, Conductor.instance.currentBeat);
Assert.areEqual(0, Conductor.instance.currentStep);
FunkinAssert.areNear(1 / 9, Conductor.instance.currentStepTime);
step(7); // 8
FunkinAssert.areNear(FunkinTest.MS_PER_STEP * 8, Conductor.instance.songPosition);
Assert.areEqual(0, Conductor.instance.currentBeat);
Assert.areEqual(0, Conductor.instance.currentStep);
FunkinAssert.areNear(8 / 9, Conductor.instance.currentStepTime);
Assert.areEqual(0, currentConductorState.beatsHit);
Assert.areEqual(0, currentConductorState.stepsHit);
step(); // 9
Assert.areEqual(0, currentConductorState.beatsHit);
Assert.areEqual(1, currentConductorState.stepsHit);
currentConductorState.beatsHit = 0;
currentConductorState.stepsHit = 0;
FunkinAssert.areNear(FunkinTest.MS_PER_STEP * 9, Conductor.instance.songPosition);
Assert.areEqual(0, Conductor.instance.currentBeat);
Assert.areEqual(1, Conductor.instance.currentStep);
FunkinAssert.areNear(1.0, Conductor.instance.currentStepTime);
step(35 - 9); // 35
Assert.areEqual(0, currentConductorState.beatsHit);
Assert.areEqual(2, currentConductorState.stepsHit);
currentConductorState.beatsHit = 0;
currentConductorState.stepsHit = 0;
FunkinAssert.areNear(FunkinTest.MS_PER_STEP * 35, Conductor.instance.songPosition);
Assert.areEqual(0, Conductor.instance.currentBeat);
Assert.areEqual(3, Conductor.instance.currentStep);
FunkinAssert.areNear(3.0 + 8 / 9, Conductor.instance.currentStepTime);
step(); // 36
Assert.areEqual(1, currentConductorState.beatsHit);
Assert.areEqual(1, currentConductorState.stepsHit);
currentConductorState.beatsHit = 0;
currentConductorState.stepsHit = 0;
FunkinAssert.areNear(FunkinTest.MS_PER_STEP * 36, Conductor.instance.songPosition);
Assert.areEqual(1, Conductor.instance.currentBeat);
Assert.areEqual(4, Conductor.instance.currentStep);
FunkinAssert.areNear(4.0, Conductor.instance.currentStepTime);
step(50 - 36); // 50
FunkinAssert.areNear(FunkinTest.MS_PER_STEP * 50, Conductor.instance.songPosition);
Assert.areEqual(1, Conductor.instance.currentBeat);
Assert.areEqual(5, Conductor.instance.currentStep);
FunkinAssert.areNear(5.555555, Conductor.instance.currentStepTime);
step(49); // 99
FunkinAssert.areNear(FunkinTest.MS_PER_STEP * 99, Conductor.instance.songPosition);
Assert.areEqual(2, Conductor.instance.currentBeat);
Assert.areEqual(11, Conductor.instance.currentStep);
FunkinAssert.areNear(11.0, Conductor.instance.currentStepTime);
step(1); // 100
FunkinAssert.areNear(FunkinTest.MS_PER_STEP * 100, Conductor.instance.songPosition);
Assert.areEqual(2, Conductor.instance.currentBeat);
Assert.areEqual(11, Conductor.instance.currentStep);
FunkinAssert.areNear(11.111111, Conductor.instance.currentStepTime);
}
@Test
function testUpdateForcedBPM():Void
{
Conductor.instance.forceBPM(60);
Assert.areEqual(0, Conductor.instance.songPosition);
// 60 beats per minute = 1 beat per second
// 1 beat per second = 1/60 beats per frame = 4/60 steps per frame
step(); // Advances time 1/60 of 1 second.
FunkinAssert.areNear(FunkinTest.MS_PER_STEP * 1, Conductor.instance.songPosition);
Assert.areEqual(0, Conductor.instance.currentBeat);
Assert.areEqual(0, Conductor.instance.currentStep);
FunkinAssert.areNear(4 / 60, Conductor.instance.currentStepTime); // 1/60 of 1 beat = 4/60 of 1 step
step(14 - 1); // 14
FunkinAssert.areNear(FunkinTest.MS_PER_STEP * 14, Conductor.instance.songPosition);
Assert.areEqual(0, Conductor.instance.currentBeat);
Assert.areEqual(0, Conductor.instance.currentStep);
FunkinAssert.areNear(1.0 - 4 / 60, Conductor.instance.currentStepTime); // 1/60 of 1 beat = 4/60 of 1 step
step(); // 15
FunkinAssert.areNear(FunkinTest.MS_PER_STEP * 15, Conductor.instance.songPosition);
Assert.areEqual(0, Conductor.instance.currentBeat);
Assert.areEqual(1, Conductor.instance.currentStep);
FunkinAssert.areNear(1.0, Conductor.instance.currentStepTime); // 1/60 of 1 beat = 4/60 of 1 step
step(45 - 1); // 59
FunkinAssert.areNear(FunkinTest.MS_PER_STEP * 59, Conductor.instance.songPosition);
Assert.areEqual(0, Conductor.instance.currentBeat);
Assert.areEqual(3, Conductor.instance.currentStep);
FunkinAssert.areNear(4.0 - 4 / 60, Conductor.instance.currentStepTime);
step(); // 60
FunkinAssert.areNear(FunkinTest.MS_PER_STEP * 60, Conductor.instance.songPosition);
Assert.areEqual(1, Conductor.instance.currentBeat);
Assert.areEqual(4, Conductor.instance.currentStep);
FunkinAssert.areNear(4.0, Conductor.instance.currentStepTime);
step(); // 61
FunkinAssert.areNear(FunkinTest.MS_PER_STEP * 61, Conductor.instance.songPosition);
Assert.areEqual(1, Conductor.instance.currentBeat);
Assert.areEqual(4, Conductor.instance.currentStep);
FunkinAssert.areNear(4.0 + 4 / 60, Conductor.instance.currentStepTime);
}
@Test
function testSingleTimeChange():Void
{
// Start the song with a BPM of 120.
var songTimeChanges:Array<SongTimeChange> = [new SongTimeChange(0, 120)];
Conductor.instance.mapTimeChanges(songTimeChanges);
// All should be at 0.
FunkinAssert.areNear(0, Conductor.instance.songPosition);
Assert.areEqual(0, Conductor.instance.currentBeat);
Assert.areEqual(0, Conductor.instance.currentStep);
FunkinAssert.areNear(0.0, Conductor.instance.currentStepTime); // 2/120 of 1 beat = 8/120 of 1 step
// 120 beats per minute = 2 beat per second
// 2 beat per second = 2/60 beats per frame = 16/120 steps per frame
step(); // Advances time 1/60 of 1 second.
FunkinAssert.areNear(FunkinTest.MS_PER_STEP * 1, Conductor.instance.songPosition);
Assert.areEqual(0, Conductor.instance.currentBeat);
Assert.areEqual(0, Conductor.instance.currentStep);
FunkinAssert.areNear(16 / 120, Conductor.instance.currentStepTime); // 2/120 of 1 beat = 8/120 of 1 step
step(15 - 1); // 15
FunkinAssert.areNear(FunkinTest.MS_PER_STEP * 15, Conductor.instance.songPosition);
Assert.areEqual(0, Conductor.instance.currentBeat);
Assert.areEqual(2, Conductor.instance.currentStep);
FunkinAssert.areNear(2.0, Conductor.instance.currentStepTime); // 2/60 of 1 beat = 8/60 of 1 step
step(45 - 1); // 59
FunkinAssert.areNear(FunkinTest.MS_PER_STEP * 59, Conductor.instance.songPosition);
Assert.areEqual(1, Conductor.instance.currentBeat);
Assert.areEqual(7, Conductor.instance.currentStep);
FunkinAssert.areNear(7.0 + 104 / 120, Conductor.instance.currentStepTime);
step(); // 60
FunkinAssert.areNear(FunkinTest.MS_PER_STEP * 60, Conductor.instance.songPosition);
Assert.areEqual(2, Conductor.instance.currentBeat);
Assert.areEqual(8, Conductor.instance.currentStep);
FunkinAssert.areNear(8.0, Conductor.instance.currentStepTime);
step(); // 61
FunkinAssert.areNear(FunkinTest.MS_PER_STEP * 61, Conductor.instance.songPosition);
Assert.areEqual(2, Conductor.instance.currentBeat);
Assert.areEqual(8, Conductor.instance.currentStep);
FunkinAssert.areNear(8.0 + 8 / 60, Conductor.instance.currentStepTime);
}
@Test
function testDoubleTimeChange():Void
{
// Start the song with a BPM of 120.
var songTimeChanges:Array<SongTimeChange> = [new SongTimeChange(0, 120), new SongTimeChange(3000, 90)];
Conductor.instance.mapTimeChanges(songTimeChanges);
// All should be at 0.
FunkinAssert.areNear(0, Conductor.instance.songPosition);
Assert.areEqual(0, Conductor.instance.currentBeat);
Assert.areEqual(0, Conductor.instance.currentStep);
FunkinAssert.areNear(0.0, Conductor.instance.currentStepTime); // 2/120 of 1 beat = 8/120 of 1 step
// 120 beats per minute = 2 beat per second
// 2 beat per second = 2/60 beats per frame = 16/120 steps per frame
step(); // Advances time 1/60 of 1 second.
FunkinAssert.areNear(FunkinTest.MS_PER_STEP * 1, Conductor.instance.songPosition);
Assert.areEqual(0, Conductor.instance.currentBeat);
Assert.areEqual(0, Conductor.instance.currentStep);
FunkinAssert.areNear(16 / 120, Conductor.instance.currentStepTime); // 4/120 of 1 beat = 16/120 of 1 step
step(60 - 1 - 1); // 59
FunkinAssert.areNear(FunkinTest.MS_PER_STEP * 59, Conductor.instance.songPosition);
Assert.areEqual(1, Conductor.instance.currentBeat);
Assert.areEqual(7, Conductor.instance.currentStep);
FunkinAssert.areNear(7.0 + 104 / 120, Conductor.instance.currentStepTime);
step(); // 60
FunkinAssert.areNear(FunkinTest.MS_PER_STEP * 60, Conductor.instance.songPosition);
Assert.areEqual(2, Conductor.instance.currentBeat);
Assert.areEqual(8, Conductor.instance.currentStep);
FunkinAssert.areNear(8.0, Conductor.instance.currentStepTime);
step(); // 61
FunkinAssert.areNear(FunkinTest.MS_PER_STEP * 61, Conductor.instance.songPosition);
Assert.areEqual(2, Conductor.instance.currentBeat);
Assert.areEqual(8, Conductor.instance.currentStep);
FunkinAssert.areNear(8.0 + 8 / 60, Conductor.instance.currentStepTime);
step(179 - 61); // 179
FunkinAssert.areNear(FunkinTest.MS_PER_STEP * 179, Conductor.instance.songPosition);
Assert.areEqual(5, Conductor.instance.currentBeat);
Assert.areEqual(23, Conductor.instance.currentStep);
FunkinAssert.areNear(23.0 + 52 / 60, Conductor.instance.currentStepTime);
step(); // 180 (3 seconds)
FunkinAssert.areNear(FunkinTest.MS_PER_STEP * 180, Conductor.instance.songPosition);
Assert.areEqual(6, Conductor.instance.currentBeat);
Assert.areEqual(24, Conductor.instance.currentStep);
FunkinAssert.areNear(24.0, Conductor.instance.currentStepTime);
step(); // 181 (3 + 1/60 seconds)
// BPM has switched to 90!
// 90 beats per minute = 1.5 beat per second
// 1.5 beat per second = 1.5/60 beats per frame = 3/120 beats per frame
// = 12/120 steps per frame
FunkinAssert.areNear(FunkinTest.MS_PER_STEP * 181, Conductor.instance.songPosition);
Assert.areEqual(6, Conductor.instance.currentBeat);
Assert.areEqual(24, Conductor.instance.currentStep);
FunkinAssert.areNear(24.0 + 12 / 120, Conductor.instance.currentStepTime);
step(59); // 240 (4 seconds)
FunkinAssert.areNear(FunkinTest.MS_PER_STEP * 240, Conductor.instance.songPosition);
Assert.areEqual(7, Conductor.instance.currentBeat);
Assert.areEqual(30, Conductor.instance.currentStep);
FunkinAssert.areNear(30.0, Conductor.instance.currentStepTime);
step(); // 241 (4 + 1/60 seconds)
FunkinAssert.areNear(FunkinTest.MS_PER_STEP * 241, Conductor.instance.songPosition);
Assert.areEqual(7, Conductor.instance.currentBeat);
Assert.areEqual(30, Conductor.instance.currentStep);
FunkinAssert.areNear(30.0 + 12 / 120, Conductor.instance.currentStepTime);
}
@Test
function testTripleTimeChange():Void
{
// Start the song with a BPM of 120, then move to 90, then move to 180.
var songTimeChanges:Array<SongTimeChange> = [
new SongTimeChange(0, 120),
new SongTimeChange(3000, 90),
new SongTimeChange(6000, 180)
];
Conductor.instance.mapTimeChanges(songTimeChanges);
// Verify time changes.
Assert.areEqual(3, Conductor.instance.timeChanges.length);
FunkinAssert.areNear(0, Conductor.instance.timeChanges[0].beatTime);
FunkinAssert.areNear(6, Conductor.instance.timeChanges[1].beatTime);
FunkinAssert.areNear(10.5, Conductor.instance.timeChanges[2].beatTime);
// All should be at 0.
FunkinAssert.areNear(0, Conductor.instance.songPosition);
Assert.areEqual(0, Conductor.instance.currentBeat);
Assert.areEqual(0, Conductor.instance.currentStep);
FunkinAssert.areNear(0.0, Conductor.instance.currentStepTime); // 2/120 of 1 beat = 8/120 of 1 step
// 120 beats per minute = 2 beat per second
// 2 beat per second = 2/60 beats per frame = 16/120 steps per frame
step(); // Advances time 1/60 of 1 second.
FunkinAssert.areNear(FunkinTest.MS_PER_STEP * 1, Conductor.instance.songPosition);
Assert.areEqual(0, Conductor.instance.currentBeat);
Assert.areEqual(0, Conductor.instance.currentStep);
FunkinAssert.areNear(16 / 120, Conductor.instance.currentStepTime); // 4/120 of 1 beat = 16/120 of 1 step
step(60 - 1 - 1); // 59
FunkinAssert.areNear(FunkinTest.MS_PER_STEP * 59, Conductor.instance.songPosition);
Assert.areEqual(1, Conductor.instance.currentBeat);
Assert.areEqual(7, Conductor.instance.currentStep);
FunkinAssert.areNear(7 + 104 / 120, Conductor.instance.currentStepTime);
step(); // 60
FunkinAssert.areNear(FunkinTest.MS_PER_STEP * 60, Conductor.instance.songPosition);
Assert.areEqual(2, Conductor.instance.currentBeat);
Assert.areEqual(8, Conductor.instance.currentStep);
FunkinAssert.areNear(8.0, Conductor.instance.currentStepTime);
step(); // 61
FunkinAssert.areNear(FunkinTest.MS_PER_STEP * 61, Conductor.instance.songPosition);
Assert.areEqual(2, Conductor.instance.currentBeat);
Assert.areEqual(8, Conductor.instance.currentStep);
FunkinAssert.areNear(8.0 + 8 / 60, Conductor.instance.currentStepTime);
step(179 - 61); // 179
FunkinAssert.areNear(FunkinTest.MS_PER_STEP * 179, Conductor.instance.songPosition);
Assert.areEqual(5, Conductor.instance.currentBeat);
Assert.areEqual(23, Conductor.instance.currentStep);
FunkinAssert.areNear(23.0 + 52 / 60, Conductor.instance.currentStepTime);
step(); // 180 (3 seconds)
FunkinAssert.areNear(FunkinTest.MS_PER_STEP * 180, Conductor.instance.songPosition);
Assert.areEqual(6, Conductor.instance.currentBeat);
Assert.areEqual(24, Conductor.instance.currentStep); // 23.999 => 24
FunkinAssert.areNear(24.0, Conductor.instance.currentStepTime);
step(); // 181 (3 + 1/60 seconds)
// BPM has switched to 90!
// 90 beats per minute = 1.5 beat per second
// 1.5 beat per second = 1.5/60 beats per frame = 3/120 beats per frame
// = 12/120 steps per frame
FunkinAssert.areNear(FunkinTest.MS_PER_STEP * 181, Conductor.instance.songPosition);
Assert.areEqual(6, Conductor.instance.currentBeat);
Assert.areEqual(24, Conductor.instance.currentStep);
FunkinAssert.areNear(24.0 + 12 / 120, Conductor.instance.currentStepTime);
step(60 - 1 - 1); // 240 (4 seconds)
FunkinAssert.areNear(FunkinTest.MS_PER_STEP * 239, Conductor.instance.songPosition);
Assert.areEqual(7, Conductor.instance.currentBeat);
Assert.areEqual(29, Conductor.instance.currentStep);
FunkinAssert.areNear(29.0 + 108 / 120, Conductor.instance.currentStepTime);
step(); // 240 (4 seconds)
FunkinAssert.areNear(FunkinTest.MS_PER_STEP * 240, Conductor.instance.songPosition);
Assert.areEqual(7, Conductor.instance.currentBeat);
Assert.areEqual(30, Conductor.instance.currentStep);
FunkinAssert.areNear(30.0, Conductor.instance.currentStepTime);
step(); // 241 (4 + 1/60 seconds)
FunkinAssert.areNear(FunkinTest.MS_PER_STEP * 241, Conductor.instance.songPosition);
Assert.areEqual(7, Conductor.instance.currentBeat);
Assert.areEqual(30, Conductor.instance.currentStep);
FunkinAssert.areNear(30.0 + 12 / 120, Conductor.instance.currentStepTime);
step(359 - 241); // 359 (5 + 59/60 seconds)
FunkinAssert.areNear(FunkinTest.MS_PER_STEP * 359, Conductor.instance.songPosition);
Assert.areEqual(10, Conductor.instance.currentBeat);
Assert.areEqual(41, Conductor.instance.currentStep);
FunkinAssert.areNear(41 + 108 / 120, Conductor.instance.currentStepTime);
step(); // 360
FunkinAssert.areNear(FunkinTest.MS_PER_STEP * 360, Conductor.instance.songPosition);
Assert.areEqual(10, Conductor.instance.currentBeat);
Assert.areEqual(42, Conductor.instance.currentStep); // 41.999
FunkinAssert.areNear(42.0, Conductor.instance.currentStepTime);
step(); // 361
// BPM has switched to 180!
// 180 beats per minute = 3 beat per second
// 3 beat per second = 3/60 beats per frame
// = 12/60 steps per frame
FunkinAssert.areNear(FunkinTest.MS_PER_STEP * 361, Conductor.instance.songPosition);
Assert.areEqual(10, Conductor.instance.currentBeat);
Assert.areEqual(42, Conductor.instance.currentStep);
FunkinAssert.areNear(42.0 + 12 / 60, Conductor.instance.currentStepTime);
step(); // 362
FunkinAssert.areNear(FunkinTest.MS_PER_STEP * 362, Conductor.instance.songPosition);
Assert.areEqual(10, Conductor.instance.currentBeat);
Assert.areEqual(42, Conductor.instance.currentStep);
FunkinAssert.areNear(42.0 + 24 / 60, Conductor.instance.currentStepTime);
step(3); // 365
FunkinAssert.areNear(FunkinTest.MS_PER_STEP * 365, Conductor.instance.songPosition);
Assert.areEqual(10, Conductor.instance.currentBeat);
Assert.areEqual(43, Conductor.instance.currentStep); // 42.999 => 42
FunkinAssert.areNear(43.0, Conductor.instance.currentStepTime);
}
}
class ConductorState extends FlxState
{
public var beatsHit:Int = 0;
public var stepsHit:Int = 0;
public function new()
{
super();
}
function beatHit():Void
{
beatsHit += 1;
}
function stepHit():Void
{
stepsHit += 1;
}
public override function create():Void
{
super.create();
Conductor.beatHit.add(this.beatHit);
Conductor.stepHit.add(this.stepHit);
}
public override function destroy():Void
{
super.destroy();
Conductor.beatHit.remove(this.beatHit);
Conductor.stepHit.remove(this.stepHit);
}
public override function update(elapsed:Float)
{
super.update(elapsed);
// On each step, increment the Conductor as though the song was playing.
Conductor.instance.update(Conductor.instance.songPosition + elapsed * Constants.MS_PER_SEC);
}
}