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feat: add getAncestor method

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This commit is contained in:
Nick Fisher
2024-09-08 13:52:33 +08:00
parent 5c4d5d4b9d
commit 476b552fd0
4 changed files with 73 additions and 3 deletions
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46
thermion_dart/test/integration_test.dart
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@@ -124,7 +124,51 @@ void main() async {
});
});
group("transforms", () {
group("transforms & parenting", () {
test('getParent and getAncestor both return null when entity has no parent', () async {
var viewer = await createViewer();
final cube = await viewer.createGeometry(cubeVertices, cubeIndices,
primitiveType: PrimitiveType.TRIANGLES);
expect(await viewer.getParent(cube), isNull);
expect(await viewer.getAncestor(cube), isNull);
});
test(
'getParent returns the parent entity after one has been set via setParent',
() async {
var viewer = await createViewer();
final cube1 = await viewer.createGeometry(cubeVertices, cubeIndices,
primitiveType: PrimitiveType.TRIANGLES);
final cube2 = await viewer.createGeometry(cubeVertices, cubeIndices,
primitiveType: PrimitiveType.TRIANGLES);
await viewer.setParent(cube1, cube2);
final parent = await viewer.getParent(cube1);
expect(parent, cube2);
});
test('getAncestor returns the ultimate parent entity', () async {
var viewer = await createViewer();
final grandparent = await viewer.createGeometry(cubeVertices, cubeIndices,
primitiveType: PrimitiveType.TRIANGLES);
final parent = await viewer.createGeometry(cubeVertices, cubeIndices,
primitiveType: PrimitiveType.TRIANGLES);
final child = await viewer.createGeometry(cubeVertices, cubeIndices,
primitiveType: PrimitiveType.TRIANGLES);
await viewer.setParent(child, parent);
await viewer.setParent(parent, grandparent);
expect(await viewer.getAncestor(child), grandparent);
});
test('set position based on screenspace coord', () async {
var viewer = await createViewer();
print(await viewer.getCameraFov(true));