/**
* @brief A simple, but effective AI function which will attack the player or other hostile creatures - or chase them if necessary!
*
* @param m The monster/actor which is performing this hostility.
*/
void hostile_ai(actor_t *m)
{
int oy, ox;
co c;
oy = m->y;
ox = m->x;
if(m->attacker && next_to(m, m->attacker)) {
attack(m, m->attacker);
return;
}
if(next_to(m, player) && !is_invisible(player)) {
m->attacker = player;
attack(m, m->attacker);
return;
}
if(actor_in_lineofsight(m, player)) {
m->goalx = player->x;
m->goaly = player->y;
} else {
m->attacker = NULL;
do {
m->goalx = ri(1, world->curlevel->xsize-1);
m->goaly = ri(1, world->curlevel->ysize-1);
} while(!monster_passable(world->curlevel, m->goaly, m->goalx));
}
c = get_next_step(m);
if(c.x == 0 && c.y == 0) {
return;
} else {
m->y = c.y;
m->x = c.x;
world->cmap[oy][ox].monster = NULL;
world->cmap[m->y][m->x].monster = m;
}
}
void heston_kernel_ml(const params_ml params, hls::stream<calc_t> &gaussian_rn1,
hls::stream<calc_t> &gaussian_rn2, hls::stream<calc_t> &prices) {
#pragma HLS interface ap_none port=params
#pragma HLS resource core=AXI4LiteS metadata="-bus_bundle params" \
variable=params
#pragma HLS interface ap_fifo port=gaussian_rn1
#pragma HLS resource core=AXI4Stream variable=gaussian_rn1
#pragma HLS interface ap_fifo port=gaussian_rn2
#pragma HLS resource core=AXI4Stream variable=gaussian_rn2
#pragma HLS interface ap_fifo port=prices
#pragma HLS resource core=AXI4Stream variable=prices
#pragma HLS resource core=AXI4LiteS metadata="-bus_bundle params" \
variable=return
// write block size to stream
prices.write(BLOCK_SIZE);
state_t state_coarse[BLOCK_SIZE];
#pragma HLS data_pack variable=state_coarse
state_t state_fine[BLOCK_SIZE];
#pragma HLS data_pack variable=state_fine
w_both_t w_both[BLOCK_SIZE];
#pragma HLS data_pack variable=w_both
ap_uint<6> upper_j = params.ml_constant + (params.do_multilevel ? 1 : 0);
for (uint32_t path = 0; path < params.path_cnt; path += BLOCK_SIZE) {
for (uint32_t step = 0; step != params.step_cnt_coarse; ++step) {
for (ap_uint<6> j = 0; j != upper_j; ++j) {
for (ap_uint<10> block_i = 0; block_i != BLOCK_SIZE;
++block_i) {
#pragma HLS PIPELINE II=1
bool is_fine = j != params.ml_constant;
//
// initialize
//
state_t l_state_coarse, l_state_fine;
w_both_t l_w_both;
if (step == 0 && j == 0) {
l_state_coarse = get_init_state(params);
l_state_fine = get_init_state(params);
l_w_both = get_w_zero();
} else {
l_state_coarse = state_coarse[block_i];
l_state_fine = state_fine[block_i];
l_w_both = w_both[block_i];
}
//
// calculate next step
//
state_t n_state_coarse, n_state_fine;
w_both_t n_w_both;
if (is_fine) {
// step fine
float w_stock = gaussian_rn1.read();
float w_vola = gaussian_rn2.read();
n_state_fine = get_next_step(params, l_state_fine,
w_stock, w_vola, true);
n_state_coarse = l_state_coarse;
// accumulate random numbers
n_w_both.w_stock = l_w_both.w_stock + w_stock;
n_w_both.w_vola = l_w_both.w_vola + w_vola;
} else {
// step coarse
n_state_coarse = get_next_step(params, l_state_coarse,
l_w_both.w_stock, l_w_both.w_vola, false);
n_state_fine = l_state_fine;
n_w_both = get_w_zero();
}
state_coarse[block_i] = n_state_coarse;
state_fine[block_i] = n_state_fine;
w_both[block_i] = n_w_both;
//
// write out
//
if ((step + 1 == params.step_cnt_coarse) &&
(j + 1 >= params.ml_constant)) {
if (is_fine) {
prices.write(get_log_price(n_state_fine));
} else {
prices.write(get_log_price(n_state_coarse));
}
}
}
}
}
}
}
