#include <Perception.h>
Collaboration diagram for tagGame::Perception:
Public Member Functions | |
| Perception (GameState *gs) | |
| void | setMe (Character *me) |
| Set the character from whose point of view percepts are to be calculated. | |
| void | setTagged (Character *tagged) |
| Set the character that is currently tagged. | |
| Character * | getMe () const |
| Accessors for the pushed information. | |
| Character * | getTagged () const |
| RealVec const & | myPosition () const |
| Some basic information about me. | |
| RealVec | myVelocity () const |
| Real | mySpeed () const |
| RealVec const & | myOrientation () const |
| Real | myMaxExtent () const |
| Real | myExtent (RealVec const &dir) const |
| Real | myMaxSpeed (void) const |
| bool | myselfTagged () const |
| Character const * | whoLastTaggedMe () const |
| Memory percept for who last tagged me. | |
| int | myRecentTaggedCount () const |
| Some memory percepts for recent events. | |
| bool | myselfRecentlyTagged () const |
| RealVec const & | taggedPosition () const |
| Some basic information about the tagged character. | |
| RealVec | taggedVelocity () const |
| RealVec | taggedRelativePosition () const |
| Real | distanceSquaredToTagged () const |
| Real | distanceToTagged () const |
| RealVec | taggedFuturePosition () const |
| Predictor percept for tagged character's future position. | |
| Character * | nearestCharacter () const |
| Information about the nearest character. | |
| RealVec const & | nearestCharacterPosition () const |
| RealVec | nearestCharacterRelativePosition () const |
| Real | distanceSquaredToNearestCharacter () const |
| Real | distanceToNearestCharacter () const |
| Obstacle * | nearestObstacle () const |
| Some information about obstacles. | |
| RealVec | nearestObstaclePosition () const |
| RealVec | nearestObstacleRelativePosition () const |
| Real | distanceSquaredToNearestObstacle () const |
| Real | distanceToNearestObstacle () const |
| RealVec const & | position (Obstacle const &which) const |
| Information about an arbitary obstacle. | |
| RealVec | relativePosition (Obstacle const &which) const |
| Real | distanceSquaredTo (Obstacle const &which) const |
| Real | distanceTo (Obstacle const &which) const |
| Real | timeToCollision () const |
| Predictor percept for time until my next collision. | |
| RealVec | nextCollisionPoint () const |
| Predictor percept for my next collision point. | |
| Obstacle * | nextCollider () const |
| Predictor percept for obstacle for my next collision. | |
| int | getFrame () |
| Some basic information about the game. | |
| int | getTicks () |
| Real | getTime () |
| GameState * | getGameState () |
| Full access to the underlying game-state should be restricted to debugging use only. | |
Static Public Attributes | |
| static int const | recentThreshold = 5000 |
| How many milliseconds ago counts as "recent". | |
| void tagGame::Perception::setMe | ( | Character * | me | ) | [inline] |
Set the character from whose point of view percepts are to be calculated.
This method should be called prior to the associated character's controller selecting an action. Most percepts "pull" information from the game as it is required by a controller. The "setMe" method is the main "push" method for telling a controller which character is selecting an action.
| void tagGame::Perception::setTagged | ( | Character * | tagged | ) | [inline] |
Set the character that is currently tagged.
Information about which character is currently tagged could be "pulled" from the game, but currently the information is only stored locally in the tagged character. It is therefore more efficient for the game to explicitly "push" the information whenever a new character is tagged.
Information about an arbitary obstacle.
Note that, characters are also obstacles.
| Real Perception::timeToCollision | ( | ) | const |
Predictor percept for time until my next collision.
For discrete-event simulation (see Chapter 2), an anlogous game-side function would need to be defined. Such a game-side version would have to provide reliable and conservative predictions. In contrast, this predictor percept only needs to be accurate enough to provide "reasonable" collision avoidance behavior. Where, in this case (as in many games), "reasonable" admits the possibility of the odd collision not being avoided.
1.5.1