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Instance stealing

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This commit is contained in:
Jozufozu 2021-07-22 14:07:02 -07:00
parent b0d317f9a2
commit 1ca23c514f
2 changed files with 19 additions and 7 deletions
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2
src/main/java/com/jozufozu/flywheel/backend/instancing/InstanceData.java
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@ -4,7 +4,7 @@ import com.jozufozu.flywheel.backend.gl.buffer.MappedBuffer;
public abstract class InstanceData { public abstract class InstanceData {
protected final Instancer<?> owner; Instancer<?> owner;
boolean dirty; boolean dirty;
boolean removed; boolean removed;

24
src/main/java/com/jozufozu/flywheel/backend/instancing/Instancer.java
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@ -71,12 +71,14 @@ public class Instancer<D extends InstanceData> {
} }
public D createInstance() { public D createInstance() {
D instanceData = factory.create(this); return _add(factory.create(this));
instanceData.dirty = true; }
anyToUpdate = true;
data.add(instanceData);
return instanceData; public void stealInstance(D inOther) {
if (inOther.owner == this) return;
inOther.owner.anyToRemove = true;
_add(inOther);
} }
public boolean empty() { public boolean empty() {
@ -105,6 +107,16 @@ public class Instancer<D extends InstanceData> {
vao.delete(); vao.delete();
} }
private D _add(D instanceData) {
instanceData.owner = this;
instanceData.dirty = true;
anyToUpdate = true;
data.add(instanceData);
return instanceData;
}
protected void renderSetup() { protected void renderSetup() {
if (anyToRemove) { if (anyToRemove) {
removeDeletedInstances(); removeDeletedInstances();
@ -215,7 +227,7 @@ public class Instancer<D extends InstanceData> {
final BitSet removeSet = new BitSet(oldSize); final BitSet removeSet = new BitSet(oldSize);
for (int i = 0; i < oldSize; i++) { for (int i = 0; i < oldSize; i++) {
final D element = this.data.get(i); final D element = this.data.get(i);
if (element.removed) { if (element.removed || element.owner != this) {
removeSet.set(i); removeSet.set(i);
removeCount++; removeCount++;
} }