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fix randomized movement

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This commit is contained in:
richmans
2026-04-08 21:11:07 +02:00
parent ee24aa3829
commit 927283f81d
1 changed files with 10 additions and 16 deletions
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26
farm/farm.c
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@@ -9,7 +9,7 @@
#define MAX_OPS 64
#define NUM_CHANNELS 4
const char map_offsets[] = { 0, -MAP_WIDTH , 1, MAP_WIDTH, -1 };
const short map_offsets[] = { 0, -MAP_WIDTH , 1, MAP_WIDTH, -1 };
#define MIN(X,Y) ((X) < (Y) ? (X) : (Y))
#define MAX(X,Y) ((X) > (Y) ? (X) : (Y))
#define cell_from(org, dir) (org) + map_offsets[(dir)]
@@ -18,20 +18,12 @@ const char map_offsets[] = { 0, -MAP_WIDTH , 1, MAP_WIDTH, -1 };
#define get_value(ant, v) (v) < 0x80 ? (v) : get_reg((ant), (v))
static inline unsigned int rnum(unsigned int* rstate) {
unsigned int e = *rstate + 0x9e3779b9;
*rstate = e;
e = (e ^ (e >> 16)) * 0x85ebca6b;
e = (e ^ (e >> 13)) * 0xc2b2ae35;
e = e ^ (e >> 16);
//e = e / 0x100000000;
return e;
unsigned int z = (*rstate += 0x6D2B79F5UL);
z = (z ^ (z >> 15)) * (z | 1UL);
z ^= z + (z ^ (z >> 7)) * (z | 61UL);
return z ^ (z >> 14);
}
// static inline unsigned int rnum(unsigned int* rstate) {
// return rand();
// }
static inline void set_reg(struct Ant* ant, unsigned char rid, unsigned int v) {
switch(reg_id(rid)) {
@@ -117,7 +109,7 @@ int run_simulations(struct Maps* maps, struct Program* program) {
memset(&smells, 0, NUM_CHANNELS * NUM_CELLS);
reset_ants(ants, map->nest);
score = 0;
rstate = 2;
rstate = 1;
for (int i = 0; i < NUM_CELLS; i++ ) {
food[i] = map->cells[i] == CELL_FOOD ? 1 : 0;
}
@@ -145,6 +137,7 @@ int run_simulations(struct Maps* maps, struct Program* program) {
if (v1 == 5) {
v1 = rnum(&rstate) % 4 + 1;
}
debug("MOVING %d\n", v1);
cell = cell_from(ant->cell, v1);
if (cell > 0 && cell < NUM_CELLS && map->cells[cell] != CELL_WALL) {
ant->cell = cell;
@@ -161,11 +154,12 @@ int run_simulations(struct Maps* maps, struct Program* program) {
if (map->cells[cell_from(ant->cell, 3)] == v1) dirs[found_dirs++] = 3;
if (map->cells[cell_from(ant->cell, 4)] == v1) dirs[found_dirs++] = 4;
if (found_dirs == 0) {
res = 0;
res = (rnum(&rstate) % 4) + 1;
} else if (found_dirs == 1) {
res = dirs[0];
} else {
res = dirs[rnum(&rstate) % found_dirs];
int dirrie = rnum(&rstate) % found_dirs;
res = dirs[dirrie];
}
set_reg(ant, v2, res);
break;