JNIEXPORT jint JNICALL Java_handevaluator_jni_JNIHandEvaluator_calculateClassIndex (JNIEnv *env, jclass clazz, jbyteArray cards) {
jsize cardcnt = (*env)->GetArrayLength(env, cards);
jbyte cardarr[cardcnt];
(*env)->GetByteArrayRegion(env, cards, 0, cardcnt, cardarr);
handeval_eq_class *c = calculate_equivalence_class((char*) cardarr);
return (jint) c->id;
}
int _tmain(int argc, _TCHAR* argv[])
{
printf("Moritz Hammer's DAG Evaluator\n");
printf("-----------------------------\n\n");
printf("Loading equivalence class and DAG data files...\n\n");
// Initialize the hand eval library with the name of the equivalence class
// data file and the directed acyclic graph (DAG) file.
handeval_init("eqcllist", "carddag");
int count = 0;
int freq[9];
memset(freq, 0, sizeof(freq));
char hand[7];
handeval_eq_class* eqClass = NULL;
printf("Enumerating and evaluating all 133,784,560 possible 7-card poker hands...\n\n");
DWORD dwTime = GetTickCount();
for (hand[0] = 0; hand[0] < 46; hand[0]++) {
for (hand[1] = hand[0]+1; hand[1] < 47; hand[1]++) {
for (hand[2] = hand[1]+1; hand[2] < 48; hand[2]++) {
for (hand[3] = hand[2]+1; hand[3] < 49; hand[3]++) {
for (hand[4] = hand[3]+1; hand[4] < 50; hand[4]++) {
for (hand[5] = hand[4]+1; hand[5] < 51; hand[5]++) {
for (hand[6] = hand[5]+1; hand[6] < 52; hand[6]++)
{
eqClass = calculate_equivalence_class(hand);
freq[eqClass->type]++;
count++;
}
}
}
}
}
}
}
dwTime = GetTickCount() - dwTime;
printf("High Card: %d\n", freq[0]);
printf("One Pair: %d\n", freq[1]);
printf("Two Pair: %d\n", freq[2]);
printf("Trips: %d\n", freq[3]);
printf("Straight: %d\n", freq[4]);
printf("Flush: %d\n", freq[5]);
printf("Full House: %d\n", freq[6]);
printf("Quads: %d\n", freq[7]);
printf("Straight Flush: %d\n", freq[8]);
printf("\nEnumerated and evaluated %d hands in %d milliseconds!", count, dwTime);
std::cin.get();
return 0;
}
/** These calls are used for comparing the speed of the Java implementation to
* the native one. I use JNI to trigger this to get the same wall-clock reading using System.currentTimeMillis. */
JNIEXPORT void JNICALL Java_handevaluator_jni_JNIHandEvaluator_runSuite(JNIEnv *env , jclass clazz, jint trials) {
init_random(trials);
deck_struct deck;
init_deck(&deck);
int i, j;
char cards[7];
for (i=0; i < trials; i++) {
reset_deck(&deck);
for (j=0; j < 7; j++) {
cards[j] = draw_random_card(&deck);
}
calculate_equivalence_class(cards);
}
}
