Orx Learning - en:examples:orx_scroll
https://www.orx-project.org/wiki/
2026-04-15T03:07:48+00:00Orx Learning
https://www.orx-project.org/wiki/
https://www.orx-project.org/wiki/_media/favicon.icotext/html2025-09-30T17:26:19+00:00Anonymous (anonymous@undisclosed.example.com)Collisions with ScrollObjects
https://www.orx-project.org/wiki/en/examples/orx_scroll/collisions_with_scrollobjects?rev=1759253179&do=diff
Collisions with ScrollObjects
Collisions can be tested in ScrollObjects using the OnCollide function. The incoming _poCollider is the ScrollObject that is colliding with this ScrollObject.
Also, the individual parts of both ScrollObjects that are colliding are available in the function.text/html2025-09-30T17:26:19+00:00Anonymous (anonymous@undisclosed.example.com)Delete a BodyPart from a ScrollObject by Name
https://www.orx-project.org/wiki/en/examples/orx_scroll/delete_bodypart_from_scrollobject_by_name?rev=1759253179&do=diff
Delete a BodyPart from a ScrollObject by Name
void Ship::DeleteBodyPartByName(const orxSTRING partName) {
orxOBJECT *ship = this->GetOrxObject();
orxBODY *body = orxOBJECT_GET_STRUCTURE(ship, BODY);
for (orxBODY_PART *part = orxBody_GetNextPart(body, orxNULL); part; part = orxBody_GetNextPart(body, part)) {
if (orxString_Compare(orxBody_GetPartName(part), partName) == 0) {
orxBody_RemovePart(part);
}
}
}text/html2025-09-30T17:26:19+00:00Anonymous (anonymous@undisclosed.example.com)Delete a Child Object from a ScrollObject by Name
https://www.orx-project.org/wiki/en/examples/orx_scroll/delete_child_from_scrollobject_by_name?rev=1759253179&do=diff
Delete a Child Object from a ScrollObject by Name
void Ship::DeleteChildByName(const orxSTRING childName) {
for (ScrollObject *child = this->GetOwnedChild(); child; child = child->GetOwnedSibling()) {
if (orxString_Compare(child->GetModelName(), childName) == 0) {
child->SetLifeTime(0);
return;
}
}
}text/html2025-09-30T17:26:19+00:00Anonymous (anonymous@undisclosed.example.com)Get Child ScrollObject By Name
https://www.orx-project.org/wiki/en/examples/orx_scroll/get_child_under_scrollobject_by_name?rev=1759253179&do=diff
Get Child ScrollObject By Name
Scroll has a pair of methods for finding child objects.
FindChild(path) finds an object located at path under the children hierarchy of this object. It uses orxObject_FindChild internally.
FindOwnedChild(path) finds an object located attext/html2025-09-30T17:26:19+00:00Anonymous (anonymous@undisclosed.example.com)Orx/Scroll Examples
https://www.orx-project.org/wiki/en/examples/orx_scroll/main?rev=1759253179&do=diff
Orx/Scroll Examples
delete_child_from_scrollobject_by_name
Deleting Child from ScrollObject by Name
get_child_under_scrollobject_by_name
Get Child under a ScrollObject by Name
delete_bodypart_from_scrollobject_by_name
Deleting a BodyPart from ScrollObject by Name
scrollobject_start_position
ScrollObject Start Position
scrollobject_following_scrollobject
ScrollObject following a ScrollObject
collisions_with_scrollObjects
Collisions with ScrollObjectstext/html2025-09-30T17:26:19+00:00Anonymous (anonymous@undisclosed.example.com)Working with ScrollObjects and Custom Classes
https://www.orx-project.org/wiki/en/examples/orx_scroll/scrollobjects_and_custom_classes?rev=1759253179&do=diff
Working with ScrollObjects and Custom Classes
ScrollObjects are Class Templates. They provide many functions such as OnCreate, Update, OnCollide etc.
If we had a scroll object class file, say: Spaceship.cpp, and it had been included and properly bound, We could create an instance of our object with:text/html2025-09-30T17:26:19+00:00Anonymous (anonymous@undisclosed.example.com)ScrollObject following another ScrollObject
https://www.orx-project.org/wiki/en/examples/orx_scroll/scrollobject_following_scrollobject?rev=1759253179&do=diff
ScrollObject following another ScrollObject
This routine will use the Update function of a ScrollObject, physics and some orxVECTOR math to always try to follow another object.
void Enemy::Update(const orxCLOCK_INFO &_rstInfo)
{
orxOBJECT *enemyObject = this->GetOrxObject();
orxVECTOR enemyPosition = orxVECTOR_0;
this->GetPosition(enemyPosition, orxTRUE);
orxVECTOR playerPosition = orxVECTOR_0;
playerPosition = karbon_game::GetInstance().GetPlayerPosition(); //you'll need to implement…text/html2025-09-30T17:26:19+00:00Anonymous (anonymous@undisclosed.example.com)ScrollObject Start Position
https://www.orx-project.org/wiki/en/examples/orx_scroll/scrollobject_start_position?rev=1759253179&do=diff
ScrollObject Start Position
While an object can simply be given a starting position using the Position property in config. The position can even be a range of random positions. This could be enough, however you may wish to customise the position, for example to ensure that the object only appears on the edges of the screen, and nowhere else.