void keyboard_handler(unsigned char key, int x, int y) {
glm::vec3 translation = glm::vec3(0, 0, 0);
glm::vec3 rotation = glm::vec3(0, 0, 0);
// check which translation or rotation was requested
switch (key) {
case 'q': translation = glm::vec3( 1, 0, 0); break;
case 'w': translation = glm::vec3(-1, 0, 0); break;
case 'e': translation = glm::vec3( 0, 1, 0); break;
case 'r': translation = glm::vec3( 0,-1, 0); break;
case 't': translation = glm::vec3( 0, 0, 1); break;
case 'y': translation = glm::vec3( 0, 0,-1); break;
case 'a': rotation = glm::vec3( 1, 0, 0); break;
case 's': rotation = glm::vec3(-1, 0, 0); break;
case 'd': rotation = glm::vec3( 0, 1, 0); break;
case 'f': rotation = glm::vec3( 0,-1, 0); break;
case 'g': rotation = glm::vec3( 0, 0, 1); break;
case 'h': rotation = glm::vec3( 0, 0,-1); break;
case ' ': viewMatrix = get_default_viewMatrix(); break;
case 27: exit(0);
}
// perform the translation or rotation
if (translation.x != 0 || translation.y != 0 || translation.z != 0) {
viewMatrix = glm::translate(viewMatrix, translation);
} else if (rotation.x != 0 || rotation.y != 0 || rotation.z != 0) {
viewMatrix = glm::rotate(viewMatrix, 1.0f, rotation);
}
normalMatrix = get_default_normalMatrix();
// re-draw the scene
display_handler();
}
void update_display(void) {
void (*display_handler)(char*,char*) = state_handlers[state].display;
char line_1[17];
char line_2[17];
clear_line(line_1);
clear_line(line_2);
if (display_handler == NULL) return;
display_handler(line_1, line_2);
display_line(LCD_LINE_1, line_1);
display_line(LCD_LINE_2, line_2);
}
