bool target_mode(entity *player) {
if (!LOADED) {
TARGET_X = player->x;
TARGET_Y = player->y;
LOADED = true;
}
draw();
for (int x = player->x - BOUND - 1; x <= player->x + BOUND + 1; ++x) {
draw_tile(BORDER, 0, x, player->y - BOUND - 1, player->x, player->y);
draw_tile(BORDER, 0, x, player->y + BOUND + 1, player->x, player->y);
}
for (int y = player->y - BOUND - 1; y <= player->y + BOUND + 1; ++y) {
draw_tile(BORDER, 0, player->x - BOUND - 1, y, player->x, player->y);
draw_tile(BORDER, 0, player->x + BOUND + 1, y, player->x, player->y);
}
bresenham_line(player->x, player->y, TARGET_X, TARGET_Y, __target_cb, player);
draw_tile(RETICLE, 0, TARGET_X, TARGET_Y, player->x, player->y);
update_panels();
doupdate();
int input = getch();
switch (input) {
case 'h':
case 'l':
case 'k':
case 'j':
case 'y':
case 'u':
case 'b':
case 'n': {
int tx = 0, ty = 0;
if (determine_offsets(input, &tx, &ty) && abs(TARGET_X + tx - player->x) <= BOUND && abs(TARGET_Y + ty - player->y) <= BOUND) {
TARGET_X += tx;
TARGET_Y += ty;
}
} break;
case 27:
case '\n':
LOADED = false;
break;
}
return true;
}
void be_emit_code(FILE *output, const binary_emiter_interface_t *interface)
{
unsigned offset;
code_fragment_t *fragment;
finish_fragment();
/* determine near/far jumps */
determine_offsets(interface);
/* emit code */
offset = 0;
for (fragment = first_fragment; fragment != NULL;
fragment = fragment->next) {
unsigned char *jmpbuffer;
unsigned nops;
/* assure alignment by emitting nops */
assert(fragment->offset >= offset);
nops = fragment->offset - offset;
if (nops > 0) {
unsigned char *nopbuffer = (unsigned char*)obstack_alloc(&code_fragment_obst, nops);
interface->create_nops(nopbuffer, nops);
emit(output, nopbuffer, nops);
offset = fragment->offset;
obstack_free(&code_fragment_obst, nopbuffer);
}
/* emit the fragment */
emit(output, fragment->data, fragment->len);
offset += fragment->len;
/* emit the jump */
jmpbuffer = (unsigned char*)obstack_alloc(&code_fragment_obst, fragment->jumpsize_min);
interface->emit_jump(fragment, jmpbuffer);
emit(output, jmpbuffer, fragment->jumpsize_min);
offset += fragment->jumpsize_min;
obstack_free(&code_fragment_obst, jmpbuffer);
}
}
