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Fix things using wall time running too fast. Fixes BUKKIT-4155

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When converting things in Minecraft to use wall time instead of ticks I
realized we'd run into integer division rounding issues and could have
updates that end up counting as zero ticks. To compensate for this the
code ensures we always process at least one tick. However, every time we
end up with zero ticks the next time we have an extra tick due to rounding
the other way with the leftovers. This means we are going far too fast and
should not have this at least one tick logic at all.

On top of this some potions rely on the number of ticks they run and not
just the amount of time they last and so potions were put back to running
with ticks entirely.
This commit is contained in:
Travis Watkins 2013-04-27 04:50:37 -05:00
parent 799779e4b1
commit 3bbfb41798
5 changed files with 4 additions and 154 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
src/main/java/net/minecraft/server/EntityItem.java
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@ -56,7 +56,7 @@ public class EntityItem extends Entity {
public void l_() {
super.l_();
// CraftBukkit start - Use wall time for pickup and despawn timers
int elapsedTicks = Math.max(1, MinecraftServer.currentTick - this.lastTick);
int elapsedTicks = MinecraftServer.currentTick - this.lastTick;
this.pickupDelay -= elapsedTicks;
this.age += elapsedTicks;
this.lastTick = MinecraftServer.currentTick;

2
src/main/java/net/minecraft/server/EntityZombie.java
View File

@ -121,7 +121,7 @@ public class EntityZombie extends EntityMonster {
int i = this.q();
// CraftBukkit start - Use wall time instead of ticks for villager conversion
int elapsedTicks = Math.max(1, MinecraftServer.currentTick - this.lastTick);
int elapsedTicks = MinecraftServer.currentTick - this.lastTick;
this.lastTick = MinecraftServer.currentTick;
i *= elapsedTicks;
// CraftBukkit end

150
src/main/java/net/minecraft/server/MobEffect.java
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@ -1,150 +0,0 @@
package net.minecraft.server;
public class MobEffect {
private int effectId;
private int duration;
private int amplification;
private boolean splash;
private boolean ambient;
private int lastTick = MinecraftServer.currentTick; // CraftBukkit
public MobEffect(int i, int j) {
this(i, j, 0);
}
public MobEffect(int i, int j, int k) {
this(i, j, k, false);
}
public MobEffect(int i, int j, int k, boolean flag) {
this.effectId = i;
this.duration = j;
this.amplification = k;
this.ambient = flag;
}
public MobEffect(MobEffect mobeffect) {
this.effectId = mobeffect.effectId;
this.duration = mobeffect.duration;
this.amplification = mobeffect.amplification;
}
public void a(MobEffect mobeffect) {
if (this.effectId != mobeffect.effectId) {
System.err.println("This method should only be called for matching effects!");
}
if (mobeffect.amplification > this.amplification) {
this.amplification = mobeffect.amplification;
this.duration = mobeffect.duration;
} else if (mobeffect.amplification == this.amplification && this.duration < mobeffect.duration) {
this.duration = mobeffect.duration;
} else if (!mobeffect.ambient && this.ambient) {
this.ambient = mobeffect.ambient;
}
}
public int getEffectId() {
return this.effectId;
}
public int getDuration() {
return this.duration;
}
public int getAmplifier() {
return this.amplification;
}
public boolean isSplash() {
return this.splash;
}
public void setSplash(boolean flag) {
this.splash = flag;
}
public boolean isAmbient() {
return this.ambient;
}
public boolean tick(EntityLiving entityliving) {
if (this.duration > 0) {
if (MobEffectList.byId[this.effectId].a(this.duration, this.amplification)) {
this.b(entityliving);
}
this.h();
}
return this.duration > 0;
}
private int h() {
// CraftBukkit start - Use wall time instead of ticks for potion effects
int elapsedTicks = Math.max(1, MinecraftServer.currentTick - this.lastTick);
this.lastTick = MinecraftServer.currentTick;
this.duration -= elapsedTicks;
return this.duration;
// CraftBukkit end
}
public void b(EntityLiving entityliving) {
if (this.duration > 0) {
MobEffectList.byId[this.effectId].tick(entityliving, this.amplification);
}
}
public String f() {
return MobEffectList.byId[this.effectId].a();
}
public int hashCode() {
return this.effectId;
}
public String toString() {
String s = "";
if (this.getAmplifier() > 0) {
s = this.f() + " x " + (this.getAmplifier() + 1) + ", Duration: " + this.getDuration();
} else {
s = this.f() + ", Duration: " + this.getDuration();
}
if (this.splash) {
s = s + ", Splash: true";
}
return MobEffectList.byId[this.effectId].i() ? "(" + s + ")" : s;
}
public boolean equals(Object object) {
if (!(object instanceof MobEffect)) {
return false;
} else {
MobEffect mobeffect = (MobEffect) object;
return this.effectId == mobeffect.effectId && this.amplification == mobeffect.amplification && this.duration == mobeffect.duration && this.splash == mobeffect.splash && this.ambient == mobeffect.ambient;
}
}
public NBTTagCompound a(NBTTagCompound nbttagcompound) {
nbttagcompound.setByte("Id", (byte) this.getEffectId());
nbttagcompound.setByte("Amplifier", (byte) this.getAmplifier());
nbttagcompound.setInt("Duration", this.getDuration());
nbttagcompound.setBoolean("Ambient", this.isAmbient());
return nbttagcompound;
}
public static MobEffect b(NBTTagCompound nbttagcompound) {
byte b0 = nbttagcompound.getByte("Id");
byte b1 = nbttagcompound.getByte("Amplifier");
int i = nbttagcompound.getInt("Duration");
boolean flag = nbttagcompound.getBoolean("Ambient");
return new MobEffect(b0, i, b1, flag);
}
}

2
src/main/java/net/minecraft/server/TileEntityBrewingStand.java
View File

@ -64,7 +64,7 @@ public class TileEntityBrewingStand extends TileEntity implements IWorldInventor
public void h() {
// CraftBukkit start - Use wall time instead of ticks for brewing
int elapsedTicks = Math.max(1, MinecraftServer.currentTick - this.lastTick);
int elapsedTicks = MinecraftServer.currentTick - this.lastTick;
this.lastTick = MinecraftServer.currentTick;
if (this.brewTime > 0) {

2
src/main/java/net/minecraft/server/TileEntityFurnace.java
View File

@ -166,7 +166,7 @@ public class TileEntityFurnace extends TileEntity implements IWorldInventory {
boolean flag1 = false;
// CraftBukkit start - Use wall time instead of ticks for cooking
int elapsedTicks = Math.max(1, MinecraftServer.currentTick - this.lastTick);
int elapsedTicks = MinecraftServer.currentTick - this.lastTick;
this.lastTick = MinecraftServer.currentTick;
// CraftBukkit - moved from below