// callback for keyboard events
void key_callback(GLFWwindow* window, int key, int scancode, int action, int mods)
{
if (key == GLFW_KEY_R && action == GLFW_PRESS){
// reset all the instances
std::list<ModelInstance>::iterator it;
for(it = gInstances.begin(); it != gInstances.end(); ++it){
(*it).transform = random_transform();
}
}
}
transform_model* evolve_transform(
const language_model* model,
const char* text,
int (*controller) (
int iteration, transform_model* transform,
const char* better_output, unsigned long score)){
const int population_count = POPULATION_SIZE;
transform_model* population[population_count];
// Initial population
{
int i;
for (i = 0; i < population_count; i++){
population[i] = random_transform();
}
}
long iteration;
int done = 0;
for (iteration = 0;!done;iteration++){
{
int i;
for (i = 0; i < population_count; i++){
char* out = process(population[i], text, model);
free(out);
}
}
qsort(&population, population_count, sizeof(transform_model*),
inv_language_score_cmp);
{
transform_model* winner = population[0];
char* better = process(winner, text, model);
int action = controller(iteration, winner, better, winner->score);
if ((iteration % SHOW_INTERVAL) == 0) {
int limit = strlen(better);
// Make the “better” string readable
if (limit > 50){
strcpy(&better[40],
"\x1b[7m%\x1b[0m");
limit = 40;
}
int i;
for (i = 0; i < limit; i++){
if ((!isalnum(better[i])) && (!ispunct(better[i])) && (better[i] != ' ')){
better[i] = '.';
}
}
printf("Iteration (%5li) [%5li | %3li]: |\x1b[1m%s\x1b[0m|\n",
iteration, winner->score,
winner->output_size, better);
}
free(better);
switch(action){
case EVOLVE_SHAKE:
shake(population);
case EVOLVE_CONTINUE:
cross(population, iteration, text);
break;
case EVOLVE_DONE:
done = 1;
break;
default:
printf("Unknown action code: %i\n", action);
}
}
}
// Free population
{
int i;
for (i = 1; i < population_count; i++){
free_transform_model(population[i]);
}
}
return population[0];
}
// convenience function that returns a random generated instance
static void CreateRandomInstance() {
ModelInstance instance;
instance.asset = &gBox;
instance.transform = random_transform();
gInstances.push_back(instance);
}
