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Use TrigMath in hotspots

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Use our implementation of atan2 in AI routines as profiling shows these are
hotspots and (for these cases) our implementation is much faster.
This commit is contained in:
Travis Watkins
2012-08-15 05:15:36 -05:00
parent 8219081385
commit 7b20caf8fe
3 changed files with 14 additions and 5 deletions
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8
src/main/java/net/minecraft/server/ControllerLook.java
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@@ -1,5 +1,7 @@
package net.minecraft.server;
import org.bukkit.craftbukkit.TrigMath; // CraftBukkit
public class ControllerLook {
private EntityLiving a;
@@ -45,8 +47,10 @@ public class ControllerLook {
double d1 = this.f - (this.a.locY + (double) this.a.getHeadHeight());
double d2 = this.g - this.a.locZ;
double d3 = (double) MathHelper.sqrt(d0 * d0 + d2 * d2);
float f = (float) (Math.atan2(d2, d0) * 180.0D / 3.1415927410125732D) - 90.0F;
float f1 = (float) (-(Math.atan2(d1, d3) * 180.0D / 3.1415927410125732D));
// CraftBukkit start - Math -> TrigMath
float f = (float) (TrigMath.atan2(d2, d0) * 180.0D / 3.1415927410125732D) - 90.0F;
float f1 = (float) (-(TrigMath.atan2(d1, d3) * 180.0D / 3.1415927410125732D));
// CraftBukkit end
this.a.pitch = this.a(this.a.pitch, f1, this.c);
this.a.as = this.a(this.a.as, f, this.b);