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v0.4.2: various performance improvements to core classes

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This commit is contained in:
Evan Debenham
2016-08-29 15:40:28 -04:00
parent 71c7c264ac
commit 926b02ce65
4 changed files with 31 additions and 42 deletions
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SPD-classes/src/main/java/com/watabou/noosa/Visual.java
+20 -17
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@@ -79,18 +79,22 @@ public class Visual extends Gizmo {
public void draw() {
updateMatrix();
}
//FIXME this is recomputing a lot of stuff every frame
// would be far better to redo this only when changes happen
protected void updateMatrix() {
Matrix.setIdentity( matrix );
Matrix.translate( matrix, x, y );
Matrix.translate( matrix, origin.x, origin.y );
if (origin.x != 0 || origin.y != 0)
Matrix.translate( matrix, origin.x, origin.y );
if (angle != 0) {
Matrix.rotate( matrix, angle );
}
if (scale.x != 1 || scale.y != 1) {
Matrix.scale( matrix, scale.x, scale.y );
}
Matrix.translate( matrix, -origin.x, -origin.y );
if (origin.x != 0 || origin.y != 0)
Matrix.translate( matrix, -origin.x, -origin.y );
}
public PointF point() {
@@ -128,20 +132,19 @@ public class Visual extends Gizmo {
}
protected void updateMotion() {
float elapsed = Game.elapsed;
float d = (GameMath.speed( speed.x, acc.x ) - speed.x) / 2;
speed.x += d;
x += speed.x * elapsed;
speed.x += d;
d = (GameMath.speed( speed.y, acc.y ) - speed.y) / 2;
speed.y += d;
y += speed.y * elapsed;
speed.y += d;
angle += angularSpeed * elapsed;
if (acc.x != 0)
speed.x += acc.x * Game.elapsed;
if (speed.x != 0)
x += speed.x * Game.elapsed;
if (acc.y != 0)
speed.y += acc.y * Game.elapsed;
if (speed.y != 0)
y += speed.y * Game.elapsed;
if (angularSpeed != 0)
angle += angularSpeed * Game.elapsed;
}
public void alpha( float value ) {