Unigine::ObjectExternBase Class

Header:	#include <UnigineObjects.h>
Inherits from:	Base

The base class, from which the custom user-defined objects are inherited.

Methods:

Name	Description View: Sort by:
getClassID	Returns a unique class ID.
getCollision	Spatial collision with the bounding box.
getIntersection	Returns a value indicating that the line intersects the object surface.
getNode	Returns the Node smart pointer.
getNumSurfaces	Returns the number of object surfaces.
getNumTriangles	Returns the number of triangles.
getObject	Returns the Object smart pointer.
getObjectExtern	Returns the ObjectExtern smart pointer.
getOrder	Returns the rendering order with respect to the camera position.
getRandomPoint	Returns a random point from a surface.
getResource	Returns the unique render resource identifier.
getSequence	Returns the rendering sequence with respect to the camera position.
getSurfaceName	Returns the object surface name.
getTransparentDistance	Returns the transparent rendering distance.
create	Renders a create function.
findSurface	Returns the number of the object surface by its name.
hasCreate	Returns a value indicating that the object has a create function.
hasLods	Returns a value indicating if the object has LODs.
hasRender	Returns a value indicating that the object has a render function.
hasShadow	Returns a value indicating that the object has a shadow function.
loadWorld	Loads an object state from the Xml.
preRender	Pre-render function, i.
render	Renders the render function.
renderHandler	Renders the handler.
renderShadow	Renders render function.
renderVisualizer	Renders the visualizer.
resizeSurfaces	Resizes all of the object surfaces.
saveState	Saves an object state into the stream.
restoreState	Restores an object state from the stream.
saveWorld	Saves an object state into the Xml.
update	Update function.
updateEnabled	Updates enabled.
updatePosition	Updates a position.
updateSurfaces	Updates all of the object surfaces.
updateTransform	Updates transformation.
setUpdateDistanceLimit	Sets the distance from the camera within which the object should be updated.
getUpdateDistanceLimit	Returns the distance from the camera within which the object should be updated.
setForceUpdate	Sets a value indicating if the object should be constantly updated each frame, regardless of the update distance.
isForceUpdate	Returns a value indicating if the object should be constantly updated each frame, regardless of the update distance.

ObjectExternBase Class

Members

int getClassID ( ) #

Returns a unique class ID.

Return value

Unique class ID.

int getCollision ( const Math::Vec3 & p0, const Math::Vec3 & p1, Vector< int > & surfaces ) #

Spatial collision with the bounding box.

Arguments

const Math::Vec3 & p0 - Coordinates of the start point of the line.
const Math::Vec3 & p1 - Coordinates of the end point of the line.
Vector< int > & surfaces - Return array with surface numbers.

Return value

Returns 1 if the array of surfaces is not empty.

int getCollision ( const BoundBox & bb, Vector< int > & surfaces ) #

Spatial collision with the bounding box.

Arguments

const BoundBox & bb - Bounding box.
Vector< int > & surfaces - Return array with surface numbers.

Return value

Returns 1 if the array of surfaces is not empty.

int getIntersection ( const Math::Vec3 & p0, const Math::Vec3 & p1, Math::Vec3 * ret_point, Math::vec3 * ret_normal, Math::vec4 * ret_texcoord, int * ret_index, int * ret_instance, int surface ) #

Returns a value indicating that the line intersects the object surface.

Arguments

const Math::Vec3 & p0 - Coordinates of the start point of the line.
const Math::Vec3 & p1 - Coordinates of the end point of the line.
Math::Vec3 * ret_point - Intersection point coordinates. Pass NULL if this parameter is not required.
Math::vec3 * ret_normal - Intersection normal vector. Pass NULL if this parameter is not required.
Math::vec4 * ret_texcoord - Intersection texture coordinates. Pass NULL if this parameter is not required.
int * ret_index - Intersected triangle number. Pass NULL if this parameter is not required.
int * ret_instance - Intersected instance number. Pass NULL if this parameter is not required.
int surface - Surface number.

Return value

Returns 1 if the intersection occurs.

Ptr<Node> getNode ( ) const#

Returns the Node smart pointer.

Return value

Node smart pointer.

int getNumSurfaces ( ) #

Returns the number of object surfaces.

Return value

The number of object surfaces.

int getNumTriangles ( int surface ) #

Returns the number of triangles.

Arguments

int surface - Surface number.

Return value

Returns the number of triangles.

Ptr<Object> getObject ( ) const#

Returns the Object smart pointer.

Return value

Object smart pointer.

Ptr<ObjectExtern> getObjectExtern ( ) const#

Returns the ObjectExtern smart pointer.

Return value

ObjectExtern smart pointer.

int getOrder ( const Math::Vec3 & camera, int surface ) #

Returns the rendering order with respect to the camera position.

Arguments

const Math::Vec3 & camera - World camera position.
int surface - Surface number.

Return value

Surface rendering order.

int getRandomPoint ( Math::vec3 & ret_point, Math::vec3 & ret_normal, Math::vec3 & ret_velocity, int surface ) #

Returns a random point from a surface.

Arguments

Math::vec3 & ret_point - Random point coordinates.
Math::vec3 & ret_normal - Random normal vector.
Math::vec3 & ret_velocity - Random velocity vector.
int surface - Surface number.

Return value

Returns 1 if the random point is valid.

int getResource ( int surface ) #

Returns the unique render resource identifier.

Arguments

int surface - Surface number.

Return value

Surface resource identifier.

int getSequence ( const Math::Vec3 & camera, int surface ) #

Returns the rendering sequence with respect to the camera position.

Arguments

const Math::Vec3 & camera - World camera position.
int surface - Surface number.

Return value

Surface rendering sequence.

const char * getSurfaceName ( int surface ) #

Returns the object surface name.

Arguments

int surface - Surface number.

Return value

Surface name.

float getTransparentDistance ( const Math::Vec3 & camera, int surface ) #

Returns the transparent rendering distance.

Arguments

const Math::Vec3 & camera - World camera position.
int surface - Surface number.

Return value

Surface rendering distance.

void create ( int surface ) #

Renders a create function.

Arguments

int surface - Surface number.

int findSurface ( const char * name ) #

Returns the number of the object surface by its name.

Arguments

const char * name - Surface name.

Return value

Surface number.

int hasCreate ( ) #

Returns a value indicating that the object has a create function.

Return value

Returns 1 if the object has a create function.

int hasLods ( ) #

Returns a value indicating if the object has LODs.

Return value

Returns 1 if the object has surface LODs.

int hasRender ( ) #

Returns a value indicating that the object has a render function.

Return value

Returns 1 if the object has a render function.

int hasShadow ( ) #

Returns a value indicating that the object has a shadow function.

Return value

Returns 1 if the object has a shadow function.

int loadWorld ( const Ptr<Xml> & xml ) #

Loads an object state from the Xml.

Arguments

const Ptr<Xml> & xml - Xml smart pointer.

Return value

Returns 1 if the object state was successfully loaded; otherwise, 0 is returned.

void preRender ( float ifps ) #

Pre-render function, i.e. after the update() and before the render() function.

Arguments

float ifps - Inverse FPS value.

void render ( Render::PASS pass, int surface ) #

Renders the render function.

Arguments

Render::PASS pass - Rendering pass.
int surface - Surface number.

void renderHandler ( ) #

Renders the handler.

void renderShadow ( Render::PASS pass, int surface ) #

Renders render function.

Arguments

Render::PASS pass - Rendering pass.
int surface - Surface number.

void renderVisualizer ( ) #

Renders the visualizer.

NoticeYou should enable the engine visualizer by the show_visualizer 1 console command.

void resizeSurfaces ( ) const#

Resizes all of the object surfaces.

bool saveState ( const Ptr<Stream> & stream ) #

Saves an object state into the stream.

Saving into the stream requires creating a blob to save into. To restore the saved state the restoreState() method is used:

Source code (C++)

// initialize a node and set its state
//...//

// save state
BlobPtr blob_state = Blob::create();
object->saveState(blob_state);

// change state
//...//

// restore state
blob_state->seekSet(0);				// returning the carriage to the start of the blob
object->restoreState(blob_state);

Arguments

const Ptr<Stream> & stream - Stream smart pointer.

Return value

true on success; otherwise, false.

bool restoreState ( const Ptr<Stream> & stream ) #

Restores an object state from the stream.

Restoring from the stream requires creating a blob to save into and saving the state using the saveState() method:

Source code (C++)

// initialize a node and set its state
//...//

// save state
BlobPtr blob_state = Blob::create();
object->saveState(blob_state);

// change state
//...//

// restore state
blob_state->seekSet(0);				// returning the carriage to the start of the blob
object->restoreState(blob_state);

Arguments

const Ptr<Stream> & stream - Stream smart pointer.

Return value

true on success; otherwise, false.

int saveWorld ( const Ptr<Xml> & xml ) #

Saves an object state into the Xml.

Arguments

const Ptr<Xml> & xml - Xml smart pointer.

Return value

Returns 1 if the object state was successfully saved; otherwise, 0 is returned.

void update ( float ifps ) #

Update function.

Arguments

float ifps - Inverse FPS value.

void updateEnabled ( ) #

Updates enabled.

void updateEnabled ( int surface ) #

Updates enabled.

Arguments

int surface - Surface number.

void updatePosition ( ) #

Updates a position.

void updateSurfaces ( ) const#

Updates all of the object surfaces.

void updateTransform ( ) #

Updates transformation.

void setUpdateDistanceLimit ( float distance ) #

Sets the distance from the camera within which the object should be updated.

Arguments

float distance - Distance from the camera within which the object should be updated (in units).

float getUpdateDistanceLimit ( ) #

Returns the distance from the camera within which the object should be updated.

Return value

Distance from the camera within which the object should be updated (in units).

void setForceUpdate ( bool enabled ) #

Sets a value indicating if the object should be constantly updated each frame, regardless of the update distance.

Arguments

bool enabled - true to enable forced updating for the object; false - to disable forced updating and take the update distance into account.

bool isForceUpdate ( ) #

Returns a value indicating if the object should be constantly updated each frame, regardless of the update distance.

Return value

true if the object is constantly updated each frame; otherwise, false

Last update: 2022-10-10

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