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[Bleeding] Change Vec3DPool to a stack based pool

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Avoid overhead of using an ArrayList and resizing it. Also allows for reuse
of objects in the pool during the same tick by explicitly releasing them
back to the pool. This allows for much better cache performance as well
as reduced cache footprint.
This commit is contained in:
Mike Primm
2012-08-11 17:27:27 -05:00
committed by Travis Watkins
parent d628c886d2
commit 8219081385
3 changed files with 64 additions and 13 deletions
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7
src/main/java/net/minecraft/server/World.java
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@@ -742,9 +742,11 @@ public abstract class World implements IBlockAccess {
MovingObjectPosition movingobjectposition1 = block1.a(this, l, i1, j1, vec3d, vec3d1);
if (movingobjectposition1 != null) {
Vec3D.a().release(vec3d2); // CraftBukkit
return movingobjectposition1;
}
}
Vec3D.a().release(vec3d2); // CraftBukkit
}
return null;
@@ -1446,6 +1448,7 @@ public abstract class World implements IBlockAccess {
entity.motY += vec3d.b * d1;
entity.motZ += vec3d.c * d1;
}
Vec3D.a().release(vec3d); // CraftBukkit - pop it - we're done
return flag;
}
@@ -1526,6 +1529,7 @@ public abstract class World implements IBlockAccess {
int i = 0;
int j = 0;
Vec3D vec3d2 = Vec3D.a().create(0, 0, 0); // CraftBukkit
for (float f = 0.0F; f <= 1.0F; f = (float) ((double) f + d0)) {
for (float f1 = 0.0F; f1 <= 1.0F; f1 = (float) ((double) f1 + d1)) {
for (float f2 = 0.0F; f2 <= 1.0F; f2 = (float) ((double) f2 + d2)) {
@@ -1533,7 +1537,7 @@ public abstract class World implements IBlockAccess {
double d4 = axisalignedbb.b + (axisalignedbb.e - axisalignedbb.b) * (double) f1;
double d5 = axisalignedbb.c + (axisalignedbb.f - axisalignedbb.c) * (double) f2;
if (this.a(Vec3D.a().create(d3, d4, d5), vec3d) == null) {
if (this.a(vec3d2.b(d3, d4, d5), vec3d) == null) { // CraftBukkit
++i;
}
@@ -1541,6 +1545,7 @@ public abstract class World implements IBlockAccess {
}
}
}
Vec3D.a().release(vec3d2); // CraftBukkit
return (float) i / (float) j;
}