05 Nota Vitalícia

Neste capítulo, implementaremos a lógica de tempo de vida do Note.

Nota Arquétipo

Vamos primeiro configurar o Note:

TypeScript

export class Note extends Archetype {}

JavaScript

export class Note extends Archetype {}

TypeScript

export const archetypes = defineArchetypes({
    // ...
    Note,
})

JavaScript

export const archetypes = defineArchetypes({
    // ...
    Note,
})

While we are at it, let's also add life:

TypeScript

export class Note extends Archetype {
    globalPreprocess() {
        this.life.set({
            perfect: 10,
            great: 0,
            good: 0,
            miss: -100,
        })
    }
}

JavaScript

export class Note extends Archetype {
    globalPreprocess() {
        this.life.set({
            perfect: 10,
            great: 0,
            good: 0,
            miss: -100,
        })
    }
}

Tempos Alvo e Visual

Similar to play mode, we can use note's beat to calculate target and visual times:

TypeScript

export class Note extends Archetype {
    import = this.defineImport({
        beat: { name: EngineArchetypeDataName.Beat, type: Number },
    })

    targetTime = this.entityMemory(Number)

    visualTime = this.entityMemory(Range)

    // ...

    preprocess() {
        this.targetTime = bpmChanges.at(this.import.beat).time

        this.visualTime.copyFrom(
            Range.l
                .mul(120 / bpmChanges.at(this.import.beat).bpm)
                .add(timeScaleChanges.at(this.targetTime).scaledTime),
        )
    }
}

JavaScript

export class Note extends Archetype {
    import = this.defineImport({
        beat: { name: EngineArchetypeDataName.Beat, type: Number },
    })

    targetTime = this.entityMemory(Number)

    visualTime = this.entityMemory(Range)

    // ...

    preprocess() {
        this.targetTime = bpmChanges.at(this.import.beat).time

        this.visualTime.copyFrom(
            Range.l
                .mul(120 / bpmChanges.at(this.import.beat).bpm)
                .add(timeScaleChanges.at(this.targetTime).scaledTime),
        )
    }
}

Vida

O tempo de vida de uma nota é simplesmente seu tempo visual:

TypeScript

export class Note extends Archetype {
    // ...

    spawnTime() {
        return this.visualTime.min
    }

    despawnTime() {
        return this.visualTime.max
    }
}

JavaScript

export class Note extends Archetype {
    // ...

    spawnTime() {
        return this.visualTime.min
    }

    despawnTime() {
        return this.visualTime.max
    }
}