src/game/Entity.h

   1 /*
   2  * Entity.h
   3  *
   4  *  Created on: Apr 9, 2012
   5  *      Author: holy
   6  */
   7
   8 #ifndef GAME_ENTITY_H_
   9 #define GAME_ENTITY_H_
  10
  11 #include "../geometry/Shape.h"
  12 #include "../geometry/Vector2D.h"
  13
  14 #include <cmath>
  15 #include <ostream>
  16 #include <SDL/SDL.h>
  17
  18
  19 namespace game {
  20
  21 class Entity {
  22
  23         public:
  24                 typedef geometry::Shape::Scalar Scalar;
  25                 typedef geometry::Shape::Vector Vector;
  26                 typedef geometry::Shape::Limits Limits;
  27
  28         public:
  29                 explicit Entity(geometry::Shape *);
  30                 Entity(const Vector &position, geometry::Shape *);
  31                 virtual ~Entity(void);
  32
  33         public:
  34                 void Move(const Vector &d);
  35
  36                 void SetPosition(const Vector &);
  37
  38         public:
  39                 const Vector &Position(void) const { return position; };
  40                 Vector Center(void) const;
  41                 const Vector &Velocity() const { return velocity; };
  42                 void SetVelocity(const Vector &);
  43
  44         public:
  45                 const geometry::Shape &Bounds(void) const { return *bounds; };
  46                 bool Overlaps(const Entity &other, Vector &normal) {
  47                         return bounds->Overlaps(*other.bounds, normal);
  48                 };
  49
  50         public:
  51                 void Update(float deltaT);
  52                 void Revert(float deltaT);
  53                 virtual void Collide(Entity &, const Vector &normal);
  54                 virtual void PostCollide(void);
  55                 virtual void Render(SDL_Surface *dest) { };
  56
  57         public:
  58                 bool IsDynamic(void) const { return dynamic; };
  59                 bool IsStatic(void) const { return !dynamic; };
  60                 void SetDynamic(void) { dynamic = true; };
  61                 void SetStatic(void) { dynamic = false; };
  62
  63         public:
  64                 void Accelerate(float factor);
  65                 void SetMaxVelocity(float);
  66
  67         private:
  68                 geometry::Shape *bounds;
  69                 Vector position, velocity, nextVelocity;
  70                 Scalar maxVelocitySquared;
  71                 bool dynamic, updateVelocity;
  72 };
  73
  74 }
  75
  76 #endif /* GAME_ENTITY_H_ */