forked from 0ad/0ad
Matei
2261231ffa
Jan and I implemented a number of changes: - Converted SClassSet to vector. - Refactored get/set ClassSet from string into methods in CClassSet. - Turned pass-by-value string params in getCollisionObject, CEntity constructor and CEntityManager into pointers. - Simplified processChooseMovement. - Merged CalculateRun and CalculateHealth into a single, simpler CalculateRegen + helper functions. - Changed the way regen works so the rates read in the XML act as rates (before, they were the number of seconds until the entity will be fully regenned, which is a bit counterintuitive). This was SVN commit r4167.
48 lines
2.1 KiB
C++
48 lines
2.1 KiB
C++
// Collision.h
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//
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// Mark Thompson mot20@cam.ac.uk / mark@wildfiregames.com
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//
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// Collision detection functions
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//
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// Usage: Fairly trivial; getCollisionObject( CEntity* entity ) will return the first entity colliding with the given entity.
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// The version with (x, y) parameters is just a helper; it temporarily moves the entity's collision bounds to the given
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// position before transferring to the other function.
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// Notes: getCollisionObject will only return the /first/ entity it finds in collision. This /may/ need a rethink when
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// multiple-entity (pileup) collisions become possible, I don't know.
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//
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// Mark Thompson mot20@cam.ac.uk / mark@wildfiregames.com
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#ifndef COLLISION_INCLUDED
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#define COLLISION_INCLUDED
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#include "BoundingObjects.h"
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#include "Entity.h"
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struct rayIntersectionResults
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{
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CEntity* Entity;
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CBoundingObject* boundingObject;
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CVector2D position;
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float closestApproach;
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float distance;
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};
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// maximum radius at which we check for entities (if some entity is much bigger than this, that's bad)
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#define COLLISION_RANGE 30
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typedef std::vector<CEntity*> RayIntersects;
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HEntity getCollisionObject( CEntity* entity );
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HEntity getCollisionObject( CEntity* entity, float x, float y );
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CBoundingObject* getCollisionObject( CBoundingObject* bounds, CPlayer* player=0, const CStrW* ignoreClass=0 );
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CEntity* getCollisionEntity( CBoundingObject* bounds, CPlayer* player=0, const CStrW* ignoreClass=0 );
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CBoundingObject* getContainingObject( const CVector2D& point );
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CEntity* GetCollisionObject( float x, float y ); // Point collision
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bool getRayIntersection( const CVector2D& source, const CVector2D& forward, const CVector2D& right, float length, float maxDistance, CBoundingObject* destinationCollisionObject, rayIntersectionResults* results );
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// Assumes zero width, also includes moving units (other one doesn't).
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void GetProjectileIntersection( const CVector2D& position, const CVector2D& axis, float length, RayIntersects& results );
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// Stores results in shared area
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RayIntersects& GetProjectileIntersection( const CVector2D& position, const CVector2D& axis, float length );
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#endif
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