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- Update instances using a walker object created at the top level
This commit is contained in:
Jozufozu 2024-09-14 17:46:54 -07:00
parent ed35c5a429
commit 5ffddeb221
1 changed files with 24 additions and 3 deletions
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27
common/src/lib/java/dev/engine_room/flywheel/lib/model/part/InstanceTree.java
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@ -4,6 +4,7 @@ import java.util.Collections;
import java.util.HashMap;
import java.util.Map;
import java.util.NoSuchElementException;
import java.util.function.BiConsumer;
import java.util.function.BiFunction;
import java.util.function.Consumer;
import java.util.function.ObjIntConsumer;
@ -170,6 +171,16 @@ public final class InstanceTree {
}
public void updateInstances(PoseStack poseStack) {
// Need to use an anonymous class so it can reference this.
updateInstancesInner(poseStack, new Walker() {
@Override
public void accept(InstanceTree child) {
child.updateInstancesInner(poseStack, this);
}
});
}
private void updateInstancesInner(PoseStack poseStack, Walker walker) {
if (visible) {
poseStack.pushPose();
translateAndRotate(poseStack);
@ -179,9 +190,9 @@ public final class InstanceTree {
.setChanged();
}
for (InstanceTree child : children.values()) {
child.updateInstances(poseStack);
}
// Use the bare HashMap.forEach because .values() always allocates a new collection.
// We also don't want to store an array of children because that would statically use a lot more memory.
children.forEach(walker);
poseStack.popPose();
}
@ -292,4 +303,14 @@ public final class InstanceTree {
public interface ObjIntIntConsumer<T> {
void accept(T t, int i, int j);
}
// Helper interface for writing walking classes.
private interface Walker extends BiConsumer<String, InstanceTree> {
void accept(InstanceTree child);
@Override
default void accept(String name, InstanceTree child) {
accept(child);
}
}
}