gfx_ball.h File Reference

API to create balls and walls that interact with each other on a 2D plane. More...

#include "gfx_draw.h"

Go to the source code of this file.

Classes
struct	ball
	Object to represent a ball that bounces off walls. More...
struct	wall
	Object to represent a wall that balls bounce off of. More...

Macros
Set wall location flags
Flags passed to gfxSetWallProperty to set the X, Y, width or height of a wall.
#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
Set ball speed flags
Flags passed to gfxSetBallSpeed to set various speed properties of a ball
#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

Typedefs
typedef void(*	callback_t) (void *args)
	Callback function attached to an object. More...
typedef struct ball	ball_t
	Object to represent a ball that bounces off walls. More...
typedef struct wall	wall_t
	Object to represent a wall that balls bounce off of. More...

Functions
ball_t *	gfxCreateBall (signed short initial_x, signed short initial_y, unsigned int colour, signed short radius, float max_speed, callback_t callback, void *args, gfx_image_handle_t sprite)
	Creates a ball object. More...
wall_t *	gfxCreateWall (signed short x1, signed short y1, signed short w, signed short h, float dampening, unsigned int colour, callback_t callback, void *args)
	Creates a wall object. More...
void	gfxSetWallProperty (wall_t *wall, signed short x, signed short y, signed short width, signed short height, unsigned char flags)
	Sets one or more properties of a wall. More...
void	gfxSetBallSpeed (ball_t *ball, float dx, float dy, float max_speed, unsigned char flags)
	Sets the speed of the ball. More...
void	gfxSetBallLocation (ball_t *ball, signed short x, signed short y)
	Sets the location of the ball. More...
signed char	gfxCheckBallCollisions (ball_t *ball, callback_t callback, void *args)
	Checks if a ball is currently collided with other objects. More...
void	gfxUpdateBallPosition (ball_t *ball, unsigned int milli_seconds)
	Updates the position of the ball. More...

Detailed Description

API to create balls and walls that interact with each other on a 2D plane.

Author

Alex Hoffman

Date

27 August 2019

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Copyright (C) Alexander Hoffman, 2019
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program.  If not, see <http://www.gnu.org/licenses/>.
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