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