Anvilcraft/WarpDrive
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Improved VectorI class

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Reduced memory usage when comparing
Added rotations
This commit is contained in:
LemADEC 2016-05-23 16:59:10 -04:00
parent 78e971116e
commit 6a1f4fd2f5
1 changed files with 34 additions and 0 deletions
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34
src/main/java/cr0s/warpdrive/data/VectorI.java
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@ -246,6 +246,9 @@ public class VectorI implements Cloneable {
if (object instanceof VectorI) {
VectorI vector = (VectorI) object;
return (x == vector.x) && (y == vector.y) && (z == vector.z);
} else if (object instanceof TileEntity) {
TileEntity tileEntity = (TileEntity) object;
return (x == tileEntity.xCoord) && (y == tileEntity.yCoord) && (z == tileEntity.zCoord);
}
return false;
@ -325,4 +328,35 @@ public class VectorI implements Cloneable {
z *= amount;
return this;
}
public void rotateByAngle(final double yaw, final double pitch) {
rotateByAngle(yaw, pitch, 0.0D);
}
public void rotateByAngle(final double yaw, final double pitch, final double roll) {
double yawRadians = Math.toRadians(yaw);
double yawCosinus = Math.cos(yawRadians);
double yawSinus = Math.sin(yawRadians);
double pitchRadians = Math.toRadians(pitch);
double pitchCosinus = Math.cos(pitchRadians);
double pitchSinus = Math.sin(pitchRadians);
double rollRadians = Math.toRadians(roll);
double rollCosinus = Math.cos(rollRadians);
double rollSinus = Math.sin(rollRadians);
double oldX = x;
double oldY = y;
double oldZ = z;
x = (int)Math.round(( oldX * yawCosinus * pitchCosinus
+ oldZ * (yawCosinus * pitchSinus * rollSinus - yawSinus * rollCosinus)
+ oldY * (yawCosinus * pitchSinus * rollCosinus + yawSinus * rollSinus)));
z = (int)Math.round(( oldX * yawSinus * pitchCosinus
+ oldZ * (yawSinus * pitchSinus * rollSinus + yawCosinus * rollCosinus)
+ oldY * (yawSinus * pitchSinus * rollCosinus - yawCosinus * rollSinus)));
y = (int)Math.round((-oldX * pitchSinus + oldZ * pitchCosinus * rollSinus
+ oldY * pitchCosinus * rollCosinus));
}
}