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Replace Math with FastMath for improved performance.

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FastMath is a drop in replacement for the native Java math class with improved performance and fall backs to the native Java math class if necessary.

https://commons.apache.org/proper/commons-math/javadocs/api-3.3/org/apache/commons/math3/util/FastMath.html

This requires further testing and might cause chunk borders due the FastMath giving slightly different results than the native Java math class.

I also added .idea/Terra.iml to the .gitignore
This commit is contained in:
Bud Gidiere
2020-11-18 17:23:09 -06:00
parent 19162a1924
commit 0a77487399
21 changed files with 73 additions and 52 deletions
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6
src/main/java/com/dfsek/terra/procgen/math/Vector2.java
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@@ -1,5 +1,7 @@
package com.dfsek.terra.procgen.math;
import org.apache.commons.math3.util.FastMath;
/**
* oh yeah
*/
@@ -111,7 +113,7 @@ public class Vector2 implements Cloneable {
* @return length
*/
public double length() {
return Math.sqrt(lengthSquared());
return FastMath.sqrt(lengthSquared());
}
/**
@@ -130,7 +132,7 @@ public class Vector2 implements Cloneable {
* @return Distance between vectors
*/
public double distance(Vector2 other) {
return Math.sqrt(distanceSquared(other));
return FastMath.sqrt(distanceSquared(other));
}
/**

5
src/main/java/com/dfsek/terra/procgen/pixel/Rectangle.java
View File

@@ -1,6 +1,7 @@
package com.dfsek.terra.procgen.pixel;
import com.dfsek.terra.procgen.math.Vector2;
import org.apache.commons.math3.util.FastMath;
import java.util.HashSet;
import java.util.Set;
@@ -11,8 +12,8 @@ public class Rectangle extends Polygon {
private final Vector2 max;
public Rectangle(Vector2 min, Vector2 max) {
this.max = new Vector2(Math.min(min.getX(), max.getX()), Math.min(min.getZ(), max.getZ()));
this.min = new Vector2(Math.max(min.getX(), max.getX()), Math.max(min.getZ(), max.getZ()));
this.max = new Vector2(FastMath.min(min.getX(), max.getX()), FastMath.min(min.getZ(), max.getZ()));
this.min = new Vector2(FastMath.max(min.getX(), max.getX()), FastMath.max(min.getZ(), max.getZ()));
}
public Rectangle(Vector2 center, double xRadius, double zRadius) {