ProgressContainer.java

package net.minecraft.launcher.updater.download;

public class ProgressContainer {
    private long total;
    private long current;
    private DownloadJob job;

    public DownloadJob getJob() {
        return this.job;
    }

    public void setJob(DownloadJob job) {
        this.job = job;
        if (job != null) job.updateProgress();
    }

    public long getTotal() {
        return this.total;
    }

    public void setTotal(long total) {
        this.total = total;
        if (this.job != null) this.job.updateProgress();
    }

    public long getCurrent() {
        return this.current;
    }

    public void setCurrent(long current) {
        this.current = current;
        if (current > this.total) this.total = current;
        if (this.job != null) this.job.updateProgress();
    }

    public void addProgress(long amount) {
        setCurrent(getCurrent() + amount);
    }

    public float getProgress() {
        if (this.total == 0L) return 0.0F;
        return (float) this.current / (float) this.total;
    }
}