#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#include <glad/glad.h>
#include <GLFW/glfw3.h>
#include <linmath.h>

Include dependency graph for boing.c:

Go to the source code of this file.

Classes
struct	vertex_t

Macros
#define	ANIMATION_SPEED 50.f

#define	BOING_DEBUG 0

#define	BOUNCE_HEIGHT (RADIUS * 2.1f)

#define	BOUNCE_WIDTH (RADIUS * 2.1f)

#define	DIST_BALL (RADIUS * 2.f + RADIUS * 0.1f)

#define	GRID_SIZE (RADIUS * 4.5f) /* length (width) of grid */

#define	MAX_DELTA_T 0.02f

#define	RADIUS 70.f

#define	RAND_MAX 4095

#define	SHADOW_OFFSET_X -20.f

#define	SHADOW_OFFSET_Y 10.f

#define	SHADOW_OFFSET_Z 0.f

#define	STEP_LATITUDE 22.5f

#define	STEP_LONGITUDE 22.5f /* 22.5 makes 8 bands like original Boing */

#define	VIEW_SCENE_DIST (DIST_BALL * 3.f + 200.f)/* distance from viewer to middle of boing area */

#define	WALL_L_OFFSET 0.f

#define	WALL_R_OFFSET 5.f

Enumerations
enum	DRAW_BALL_ENUM { DRAW_BALL, DRAW_BALL_SHADOW }

Functions
void	BounceBall (double dt)

double	cos_deg (double deg)

void	CrossProduct (vertex_t a, vertex_t b, vertex_t c, vertex_t *n)

void	cursor_position_callback (GLFWwindow *window, double x, double y)

double	deg2rad (double deg)

void	display (void)

void	DrawBoingBall (void)

void	DrawBoingBallBand (GLfloat long_lo, GLfloat long_hi)

void	DrawGrid (void)

void	init (void)

void	key_callback (GLFWwindow *window, int key, int scancode, int action, int mods)

int	main (void)

void	mouse_button_callback (GLFWwindow *window, int button, int action, int mods)

void	reshape (GLFWwindow *window, int w, int h)

static void	set_ball_pos (GLfloat x, GLfloat y)

double	sin_deg (double deg)

GLfloat	TruncateDeg (GLfloat deg)

Variables
GLfloat	ball_x = -RADIUS

GLfloat	ball_x_inc = 1.f

GLfloat	ball_y = -RADIUS

GLfloat	ball_y_inc = 2.f

GLfloat	cursor_x = 0.f

GLfloat	cursor_y = 0.f

GLfloat	deg_rot_y = 0.f

GLfloat	deg_rot_y_inc = 2.f

DRAW_BALL_ENUM	drawBallHow

double	dt

int	height

int	override_pos = GLFW_FALSE

double	t

double	t_old = 0.f

int	width

int	windowed_height

int	windowed_width

int	windowed_xpos

int	windowed_ypos

Macro Definition Documentation

#define ANIMATION_SPEED 50.f

Definition at line 80 of file boing.c.

#define BOING_DEBUG 0

Definition at line 174 of file boing.c.

#define BOUNCE_HEIGHT (RADIUS * 2.1f)

Definition at line 69 of file boing.c.

#define BOUNCE_WIDTH (RADIUS * 2.1f)

Definition at line 70 of file boing.c.

#define DIST_BALL (RADIUS * 2.f + RADIUS * 0.1f)

Definition at line 65 of file boing.c.

#define GRID_SIZE (RADIUS * 4.5f) /* length (width) of grid */

Definition at line 68 of file boing.c.

#define MAX_DELTA_T 0.02f

Definition at line 83 of file boing.c.

#define RADIUS 70.f

Definition at line 61 of file boing.c.

#define RAND_MAX 4095

Definition at line 110 of file boing.c.

#define SHADOW_OFFSET_X -20.f

Definition at line 72 of file boing.c.

#define SHADOW_OFFSET_Y 10.f

Definition at line 73 of file boing.c.

#define SHADOW_OFFSET_Z 0.f

Definition at line 74 of file boing.c.

#define STEP_LATITUDE 22.5f

Definition at line 63 of file boing.c.

#define STEP_LONGITUDE 22.5f /* 22.5 makes 8 bands like original Boing */

Definition at line 62 of file boing.c.

#define VIEW_SCENE_DIST (DIST_BALL * 3.f + 200.f)/* distance from viewer to middle of boing area */

Definition at line 67 of file boing.c.

#define WALL_L_OFFSET 0.f

Definition at line 76 of file boing.c.

#define WALL_R_OFFSET 5.f

Definition at line 77 of file boing.c.

Enumeration Type Documentation

enum DRAW_BALL_ENUM

Enumerator
DRAW_BALL
DRAW_BALL_SHADOW

Definition at line 86 of file boing.c.

Function Documentation

void BounceBall ( double dt )

Definition at line 384 of file boing.c.

double cos_deg ( double deg )

Definition at line 145 of file boing.c.

void CrossProduct	(	vertex_t	a,
		vertex_t	b,
		vertex_t	c,
		vertex_t *	n
	)

Definition at line 155 of file boing.c.

void cursor_position_callback	(	GLFWwindow *	window,
		double	x,
		double	y
	)

Definition at line 290 of file boing.c.

double deg2rad ( double deg )

Definition at line 129 of file boing.c.

void display ( void )

Definition at line 194 of file boing.c.

void DrawBoingBall ( void )

Definition at line 307 of file boing.c.

void DrawBoingBallBand	(	GLfloat	long_lo,
		GLfloat	long_hi
	)

Definition at line 437 of file boing.c.

void DrawGrid ( void )

Definition at line 541 of file boing.c.

void init ( void )

Definition at line 180 of file boing.c.

void key_callback	(	GLFWwindow *	window,
		int	key,
		int	scancode,
		int	action,
		int	mods
	)

Definition at line 238 of file boing.c.

int main ( void )

Definition at line 622 of file boing.c.

void mouse_button_callback	(	GLFWwindow *	window,
		int	button,
		int	action,
		int	mods
	)

Definition at line 274 of file boing.c.

void reshape	(	GLFWwindow *	window,
		int	w,
		int	h
	)

Definition at line 215 of file boing.c.

static void set_ball_pos	(	GLfloat	x,
		GLfloat	y
	)

static

Definition at line 268 of file boing.c.

double sin_deg ( double deg )

Definition at line 137 of file boing.c.

GLfloat TruncateDeg ( GLfloat deg )

Definition at line 117 of file boing.c.

Variable Documentation

GLfloat ball_x = -RADIUS

Definition at line 99 of file boing.c.

GLfloat ball_x_inc = 1.f

Definition at line 101 of file boing.c.

GLfloat ball_y = -RADIUS

Definition at line 100 of file boing.c.

GLfloat ball_y_inc = 2.f

Definition at line 102 of file boing.c.

GLfloat cursor_x = 0.f

Definition at line 97 of file boing.c.

GLfloat cursor_y = 0.f

Definition at line 98 of file boing.c.

GLfloat deg_rot_y = 0.f

Definition at line 94 of file boing.c.

GLfloat deg_rot_y_inc = 2.f

Definition at line 95 of file boing.c.

DRAW_BALL_ENUM drawBallHow

Definition at line 103 of file boing.c.

double dt

Definition at line 106 of file boing.c.

int height

Definition at line 93 of file boing.c.

int override_pos = GLFW_FALSE

Definition at line 96 of file boing.c.

double t

Definition at line 104 of file boing.c.

double t_old = 0.f

Definition at line 105 of file boing.c.

int width

Definition at line 93 of file boing.c.

int windowed_height

Definition at line 92 of file boing.c.

int windowed_width

Definition at line 92 of file boing.c.

int windowed_xpos

Definition at line 92 of file boing.c.

int windowed_ypos

Definition at line 92 of file boing.c.

Classes

Macros

Enumerations

Functions

Variables

Macro Definition Documentation

Enumeration Type Documentation

Function Documentation

Variable Documentation