input.c File Reference

#include "SDL2/SDL.h"
#include "math.h"

Include dependency graph for input.c:

Classes
struct	input
	Keypress state. Unexported. More...

Functions
struct input *	InputInit ()
	Creates and initializes a new input object. More...
void	InputDeinit (struct input *i)
	De-initializes and frees memory for the given input object. More...
int	InputIsQuitPressed (SDL_Event *event)
	Check if the user has tried to quit the program. More...
void	InputProcess (struct input *i)
	Handle input. More...

Variables
struct vec3	camera
	global camera state
struct vec3	lookDir
	global look direction state
struct vec3	up
	global up vector state
float	yaw
	global view direction state
double	elapsedTime
	global time state

Function Documentation

InputDeinit()

void InputDeinit

(

struct input *

input

)

De-initializes and frees memory for the given input object.

Parameters

[in,out]

input

The initialized input object to be cleaned and reclaimed

InputInit()

struct input* InputInit

(

)

Creates and initializes a new input object.

Returns

The initialized input object

InputIsQuitPressed()

int InputIsQuitPressed

(

SDL_Event *

event

)

Check if the user has tried to quit the program.

Parameters

[in]

event

the event object to query

Returns

1 if quit has been pressed, otherwise zero

InputProcess()

void InputProcess

(

struct input *

input

)

Handle input.

This function reaches into global state and changes it based on user input, doing things like changing the view direction.

This interface is a prime candidate to be reworked into something far less intrusive, like a callback mechanism.

Parameters

[in,out]

input

Input state to be updated