void timeStep() {
time_step += 1;
addFood();
moveBugs();
killDeadBugs();
reproduceBugs();
percent_straight = 100 * total_straight / bug_list.size() / GENE_TOTAL;
percent_left = 100 * total_left / bug_list.size() / GENE_TOTAL;
percent_right = 100 * total_right / bug_list.size() / GENE_TOTAL;
percent_back = 100 * total_back / bug_list.size() / GENE_TOTAL;
}
/* Makes sure bugs eat the food they move on top of */
TEST(MovementTests, EatingTest)
{
bug_list.clear();
bug_list.push_back(initBug(0, 0, 2));
initWorld();
world[0][1] = FOOD;
moveBugs();
ASSERT_EQ(world[0][1], 0);
ASSERT_EQ(bug_list.size(), 1);
ASSERT_EQ(bug_list[0].health, START_HEALTH + EAT_HEALTH - MOVE_HEALTH);
}
TEST(BugKillingTests, SimpleBugKillingTest)
{
bug_list.clear();
bug_list.push_back(initBug(0, 0, 2, MOVE_HEALTH));
bug_list.push_back(initBug(0, 0, 4, MOVE_HEALTH * 2));
initWorld();
moveBugs();
killDeadBugs();
ASSERT_EQ(bug_list.size(), 1);
ASSERT_EQ(world[0][0], EMPTY);
ASSERT_EQ(world[0][1], EMPTY);
ASSERT_EQ(world[1][0], 0);
}
TEST(BugKillingTests, NoSkipBugKillingTest) {
bug_list.clear();
bug_list.push_back(initBug(0, 0, NORTH, MOVE_HEALTH));
bug_list.push_back(initBug(0, 0, SOUTH, MOVE_HEALTH));
bug_list.push_back(initBug(0, 0, WEST, MOVE_HEALTH * 2));
initWorld();
moveBugs();
killDeadBugs();
ASSERT_EQ(bug_list.size(), 1);
ASSERT_EQ(world[0][0], EMPTY);
ASSERT_EQ(world[WORLD_SIZE-1][0], EMPTY);
ASSERT_EQ(world[1][0], EMPTY);
ASSERT_EQ(world[0][WORLD_SIZE-1], 0);
}
TEST(BugKillingTests, RemoveLastBugIfDead) {
bug_list.clear();
bug_list.push_back(initBug(0, 0, EAST, 0));
bug_list.push_back(initBug(0, 1, EAST, MOVE_HEALTH * 3));
bug_list.push_back(initBug(0, 2, EAST, MOVE_HEALTH * 3));
bug_list.push_back(initBug(0, 3, EAST, 0));
initWorld();
moveBugs();
killDeadBugs();
ASSERT_EQ(bug_list.size(), 2);
ASSERT_EQ(world[0][1], EMPTY);
ASSERT_GE(world[0][2], 0);
ASSERT_GE(world[0][3], 0);
ASSERT_EQ(world[0][4], EMPTY);
}
/* Makes sure bugs move properly in all directions */
TEST(MovementTests, SimpleMovementTest)
{
bug_list.clear();
for (int i = 0; i < 8; i++)
{
Bug b = initBug(0, 0, i);
bug_list.push_back(b);
}
initWorld();
moveBugs();
ASSERT_EQ(bug_list.size(), 8);
ASSERT_EQ(world[0][0], EMPTY);
int i = 0;
for (auto &bug : bug_list)
{
ASSERT_EQ(bug.x, newX(0, i));
ASSERT_EQ(bug.y, newY(0, i));
ASSERT_EQ(world[bug.x][bug.y], i++);
}
}
/* Makes sure bugs update their direction properly for all directions */
TEST(MovementTests, SimpleDirectionTest)
{
bug_list.clear();
for (int i = 0; i < 8; i++)
{
Bug b = initBug(0, 0, 0);
memset(b.genes, 0, ARRAYSIZE(b.genes));
b.genes[i] = GENE_TOTAL;
bug_list.push_back(b);
}
initWorld();
moveBugs();
ASSERT_EQ(bug_list.size(), 8);
// Each bug's direction should now be i
int i = 0;
for (auto &bug : bug_list)
{
ASSERT_EQ(bug.dir, i++);
}
}