pong.c File Reference

#include <banjo/app.h>
#include <banjo/main.h>
#include <banjo/bitmap.h>
#include <banjo/draw.h>
#include <banjo/event.h>
#include <banjo/log.h>
#include <banjo/memory.h>
#include <banjo/rect.h>
#include <banjo/system.h>
#include <banjo/time.h>
#include <banjo/window.h>

Include dependency graph for pong.c:

Go to the source code of this file.

Data Structures
struct	pong_t

Macros
#define	W   800
#define	H   600
#define	PAD_W   16
#define	PAD_H   80
#define	PAD_MARGIN   32
#define	BALL_R   8
#define	PAD_SPEED   360.0f /* pixels per second */
#define	BALL_SPEED   280.0f /* pixels per second (initial) */
#define	BOUNCE_SPEEDUP   1.05f /* paddle hit accelerates the ball */
#define	MAX_DT   0.05f /* clamp delta to avoid teleporting */

Functions
static void	reset_ball (pong_t *p, int last_winner)
static void	update (pong_t *p, float dt)
static void	draw (pong_t *p, bj_bitmap *fb)
static void	on_draw (struct bj_window *window, struct bj_render_target *target, const struct bj_rect *dirty, void *user_data)
static void *	setup (struct bj_app *app, void *init_data)
static void	step (struct bj_app *app, struct bj_tick_info tick, void *user_data)
static void	teardown (struct bj_app *app, void *user_data)
int	main (int argc, char *argv[])

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Data Structure Documentation

pong_t

struct pong_t

Examples

pong.c.

Definition at line 127 of file pong.c.

Collaboration diagram for pong_t:

Data Fields
float	ball_vx
float	ball_vy
float	ball_x
float	ball_y
float	pad_left_y
float	pad_right_y
bj_stopwatch	sw
bj_window *	window

Macro Definition Documentation

BALL_R

#define BALL_R   8

Definition at line 121 of file pong.c.

BALL_SPEED

#define BALL_SPEED   280.0f /* pixels per second (initial) */

Examples

pong.c.

Definition at line 123 of file pong.c.

Referenced by reset_ball().

BOUNCE_SPEEDUP

#define BOUNCE_SPEEDUP   1.05f /* paddle hit accelerates the ball */

Examples

pong.c.

Definition at line 124 of file pong.c.

Referenced by update().

H

#define H   600

Examples

pong.c.

Definition at line 117 of file pong.c.

Referenced by draw(), reset_ball(), setup(), and update().

MAX_DT

#define MAX_DT   0.05f /* clamp delta to avoid teleporting */

Examples

pong.c.

Definition at line 125 of file pong.c.

Referenced by step().

PAD_H

#define PAD_H   80

Examples

pong.c.

Definition at line 119 of file pong.c.

Referenced by draw(), setup(), and update().

PAD_MARGIN

#define PAD_MARGIN   32

Examples

pong.c.

Definition at line 120 of file pong.c.

Referenced by draw(), and update().

PAD_SPEED

#define PAD_SPEED   360.0f /* pixels per second */

Examples

pong.c.

Definition at line 122 of file pong.c.

Referenced by update().

PAD_W

#define PAD_W   16

Examples

pong.c.

Definition at line 118 of file pong.c.

Referenced by draw(), and update().

W

#define W   800

Examples

pong.c, and random_distribution.c.

Definition at line 116 of file pong.c.

Referenced by draw(), draw(), reset_ball(), setup(), and update().

Function Documentation

draw()

void draw ( pong_t * p, bj_bitmap * fb )

static

Definition at line 197 of file pong.c.

main()

int main	(	int	argc,
		char *	argv[] )

Definition at line 277 of file pong.c.

on_draw()

void on_draw ( struct bj_window * window, struct bj_render_target * target, const struct bj_rect * dirty, void * user_data )

static

Definition at line 221 of file pong.c.

reset_ball()

void reset_ball ( pong_t * p, int last_winner )

static

Definition at line 137 of file pong.c.

setup()

void * setup ( struct bj_app * app, void * init_data )

static

Definition at line 231 of file pong.c.

step()

void step ( struct bj_app * app, struct bj_tick_info tick, void * user_data )

static

Definition at line 253 of file pong.c.

teardown()

void teardown ( struct bj_app * app, void * user_data )

static

Definition at line 269 of file pong.c.

update()

void update ( pong_t * p, float dt )

static

Definition at line 145 of file pong.c.