TUM_Ball.h

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#ifndef __TUM_BALL_H__
#define __TUM_BALL_H__
 
typedef void (*callback_t)(void *args);
 
typedef struct ball {
    signed short x; 
    signed short y; 
    float f_x; 
    float f_y; 
    float dx; 
    float dy; 
    float max_speed; 
    unsigned int colour; 
    signed short radius; 
    callback_t callback; 
    void *args; 
} ball_t;
 
typedef struct wall {
    signed short x1; 
    signed short y1; 
    signed short w; 
    signed short h; 
    signed short x2; 
    signed short y2; 
    float dampening; 
    unsigned int colour; 
    callback_t callback; 
    void *args; 
} wall_t;
 
ball_t *createBall(signed short initial_x, signed short initial_y,
                   unsigned int colour, signed short radius, float max_speed,
                   callback_t callback, void *args);
 
wall_t *createWall(signed short x1, signed short y1, signed short w,
                   signed short h, float dampening, unsigned int colour,
                   callback_t callback, void *args);
 
#define SET_WALL_X 0b1
 
#define SET_WALL_Y 0b10
 
#define SET_WALL_WIDTH 0b100
 
#define SET_WALL_HEIGHT 0b1000
 
#define SET_WALL_AXES SET_WALL_X | SET_WALL_Y
 
#define SET_WALL_SIZE SET_WALL_WIDTH | SET_WALL_HEIGHT
 
#define SET_WALL_ALL SET_WALL_AXES | SET_WALL_SIZE
 
void setWallProperty(wall_t *wall, signed short x, signed short y,
                     signed short width, signed short height,
                     unsigned char flags);
 
#define SET_BALL_SPEED_X 0b1
 
#define SET_BALL_SPEED_Y 0b10
 
#define SET_BALL_SPEED_MAX 0b100
 
#define SET_BALL_SPEED_AXES SET_BALL_SPEED_X | SET_BALL_SPEED_Y
 
#define SET_BALL_SPEED_ALL SET_BALL_SPEED_AXES | SET_BALL_SPEED_MAX
 
void setBallSpeed(ball_t *ball, float dx, float dy, float max_speed,
                  unsigned char flags);
 
void setBallLocation(ball_t *ball, signed short x, signed short y);
 
signed char checkBallCollisions(ball_t *ball, callback_t callback, void *args);
 
void updateBallPosition(ball_t *ball, unsigned int milli_seconds);
 
#endif