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| 1 | +package sunsetsatellite.catalyst.core.util; |
| 2 | + |
| 3 | +import net.minecraft.core.world.World; |
| 4 | +import sunsetsatellite.catalyst.core.util.mixin.interfaces.IAbsoluteWorldTime; |
| 5 | + |
| 6 | +import java.util.Arrays; |
| 7 | + |
| 8 | +public class AveragingCounter { |
| 9 | + |
| 10 | + private final long defaultValue; |
| 11 | + private final long[] values; |
| 12 | + private long lastUpdatedWorldTime = 0; |
| 13 | + private int currentIndex = 0; |
| 14 | + private boolean dirty = true; |
| 15 | + private double lastAverage = 0; |
| 16 | + |
| 17 | + public AveragingCounter() { |
| 18 | + this(0, 20); |
| 19 | + } |
| 20 | + |
| 21 | + public AveragingCounter(long defaultValue, int length) { |
| 22 | + this.defaultValue = defaultValue; |
| 23 | + this.values = new long[length]; |
| 24 | + Arrays.fill(values, defaultValue); |
| 25 | + } |
| 26 | + |
| 27 | + private void update(World world) { |
| 28 | + if (world == null) return; |
| 29 | + long currentWorldTime = ((IAbsoluteWorldTime) world).getAbsoluteWorldTime(); |
| 30 | + if (currentWorldTime != lastUpdatedWorldTime) { |
| 31 | + long dif = currentWorldTime - lastUpdatedWorldTime; |
| 32 | + if (dif >= values.length || dif < 0) { |
| 33 | + Arrays.fill(values, defaultValue); |
| 34 | + currentIndex = 0; |
| 35 | + } else { |
| 36 | + currentIndex += (int) dif; |
| 37 | + if (currentIndex > values.length - 1) |
| 38 | + currentIndex -= values.length; |
| 39 | + int index; |
| 40 | + for (int i = 0, n = values.length; i < dif; i++) { |
| 41 | + index = i + currentIndex; |
| 42 | + if (index >= n) |
| 43 | + index -= n; |
| 44 | + values[index] = defaultValue; |
| 45 | + } |
| 46 | + } |
| 47 | + this.lastUpdatedWorldTime = currentWorldTime; |
| 48 | + dirty = true; |
| 49 | + } |
| 50 | + } |
| 51 | + |
| 52 | + public long getLast(World world) { |
| 53 | + update(world); |
| 54 | + return values[currentIndex]; |
| 55 | + } |
| 56 | + |
| 57 | + public double getAverage(World world) { |
| 58 | + update(world); |
| 59 | + if (!dirty) |
| 60 | + return lastAverage; |
| 61 | + dirty = false; |
| 62 | + return lastAverage = Arrays.stream(values).sum() / (double) (values.length); |
| 63 | + } |
| 64 | + |
| 65 | + public void increment(World world, long value) { |
| 66 | + update(world); |
| 67 | + values[currentIndex] += value; |
| 68 | + } |
| 69 | + |
| 70 | + public void set(World world, long value) { |
| 71 | + update(world); |
| 72 | + values[currentIndex] = value; |
| 73 | + } |
| 74 | +} |
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