mirror of
https://github.com/glfw/glfw.git
synced 2024-11-23 10:35:10 +00:00
143 lines
3.8 KiB
C
143 lines
3.8 KiB
C
/*========================================================================
|
|
* This is a small test application for GLFW.
|
|
* joystick input test.
|
|
*========================================================================*/
|
|
|
|
#include <GL/glfw3.h>
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <math.h>
|
|
|
|
#define MAX_AXES 10
|
|
#define MAX_BUTTONS 30
|
|
|
|
struct JoystickState
|
|
{
|
|
int present;
|
|
int num_axes;
|
|
int num_buttons;
|
|
float axes[MAX_AXES];
|
|
unsigned char buttons[MAX_BUTTONS];
|
|
};
|
|
|
|
static struct JoystickState states[GLFW_JOYSTICK_LAST + 1];
|
|
|
|
int running;
|
|
int keyrepeat = 0;
|
|
int systemkeys = 1;
|
|
|
|
|
|
/*========================================================================
|
|
* Retrieve joystick states
|
|
*========================================================================*/
|
|
static void updateJoysticksState(void)
|
|
{
|
|
int joy;
|
|
|
|
for (joy = GLFW_JOYSTICK_1; joy < GLFW_JOYSTICK_LAST + 1; joy++)
|
|
{
|
|
printf("Updating information for joystick %d\n", joy);
|
|
states[joy].present = glfwGetJoystickParam(joy, GLFW_PRESENT);
|
|
if (states[joy].present == GL_TRUE)
|
|
{
|
|
states[joy].num_axes = glfwGetJoystickPos(joy, states[joy].axes, MAX_AXES);
|
|
states[joy].num_buttons = glfwGetJoystickButtons(joy, states[joy].buttons, MAX_BUTTONS);
|
|
}
|
|
}
|
|
}
|
|
|
|
/*========================================================================
|
|
* Print out the state of all joysticks on the standard output
|
|
*========================================================================*/
|
|
static void displayJoysticksState(void)
|
|
{
|
|
int joy;
|
|
int i;
|
|
|
|
for (joy = GLFW_JOYSTICK_1; joy < GLFW_JOYSTICK_LAST + 1; joy++)
|
|
{
|
|
printf("Joystick %d: %s\n", joy, (states[joy].present == GL_TRUE ? "present" : "not connected"));
|
|
|
|
if (states[joy].present == GL_TRUE)
|
|
{
|
|
if (states[joy].num_axes > 0)
|
|
{
|
|
printf(" axes: %.3f", states[joy].axes[0]);
|
|
for (i = 1; i < states[joy].num_axes; i++)
|
|
printf(", %.3f", states[joy].axes[i]);
|
|
|
|
printf("\n");
|
|
}
|
|
else
|
|
printf(" axes: none\n");
|
|
|
|
if (states[joy].num_buttons > 0)
|
|
{
|
|
printf(" buttons: 00 => %c", ((states[joy].buttons[0] == GLFW_PRESS) ? 'P' : 'R'));
|
|
|
|
for (i = 1; i < states[joy].num_buttons; i++)
|
|
printf(", %02d => %c", i, ((states[joy].buttons[i] == GLFW_PRESS) ? 'P' : 'R'));
|
|
|
|
printf("\n");
|
|
}
|
|
else
|
|
printf(" buttons: none\n");
|
|
}
|
|
}
|
|
}
|
|
|
|
int main(void)
|
|
{
|
|
double start;
|
|
double t;
|
|
double update;
|
|
|
|
/* Initialise GLFW */
|
|
if (!glfwInit())
|
|
{
|
|
fprintf(stderr, "Failed to initialize GLFW: %s\n", glfwErrorString(glfwGetError()));
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
|
|
printf("The program will work for 20 seconds and display every seconds the state of the joysticks\n");
|
|
printf("Your computer is going to be very slow as the program is doing an active loop .....\n");
|
|
|
|
start = glfwGetTime();
|
|
update = start;
|
|
|
|
/* print the initial state of all joysticks */
|
|
updateJoysticksState();
|
|
printf("\n");
|
|
displayJoysticksState();
|
|
|
|
running = GL_TRUE;
|
|
|
|
/* Main loop */
|
|
while (running)
|
|
{
|
|
/* Get time */
|
|
t = glfwGetTime();
|
|
|
|
/* Display the state of all connected joysticks every secons */
|
|
if ((t - update) > 1.0)
|
|
{
|
|
update = t;
|
|
printf("\n");
|
|
updateJoysticksState();
|
|
printf("\n");
|
|
displayJoysticksState();
|
|
}
|
|
|
|
/* Check if the window was closed */
|
|
if ((t - start) > 20.0)
|
|
running = GL_FALSE;
|
|
}
|
|
|
|
/* Close OpenGL window and terminate GLFW */
|
|
glfwTerminate();
|
|
|
|
return 0;
|
|
}
|
|
|