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fix mob movement and collision quirks

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p2r3
2025-08-23 02:00:32 +03:00
parent 4a90979e2f
commit eb57e545f6
1 changed files with 23 additions and 4 deletions
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27
src/procedures.c
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@@ -448,6 +448,19 @@ uint8_t isColumnBlock (uint8_t block) {
}
uint8_t isPassableBlock (uint8_t block) {
return (
block == B_air ||
block == B_water ||
block == B_moss_carpet ||
block == B_short_grass ||
block == B_dead_bush ||
block == B_torch
);
}
void handlePlayerAction (PlayerData *player, int action, short x, short y, short z) {
// In creative, only the "start mining" action is sent
@@ -693,16 +706,22 @@ void handleServerTick (int64_t time_since_last_tick) {
}
// Check if the block we're moving into is passable:
// Check if the blocks we're moving into are passable:
// if yes, and the block below is solid, keep the same Y level;
// if yes, but the block below isn't solid, drop down one block;
// if not, go up by up to one block;
// if going up isn't possible, skip this iteration.
uint8_t block = getBlockAt(new_x, new_y, new_z);
if (block != B_air) {
if (getBlockAt(new_x, new_y + 1, new_z) == B_air) new_y += 1;
uint8_t block_above = getBlockAt(new_x, new_y + 1, new_z);
if (!isPassableBlock(block) || !isPassableBlock(block_above)) {
block = block_above;
block_above = getBlockAt(new_x, new_y + 2, new_z);
if (isPassableBlock(block) && isPassableBlock(block_above)) new_y += 1;
else continue;
} else if (getBlockAt(new_x, new_y - 1, new_z) == B_air) new_y -= 1;
} else {
uint8_t block_below = getBlockAt(new_x, new_y - 1, new_z);
if (isPassableBlock(block_below)) new_y -= 1;
}
// Store new mob position
mob_data[i].x = new_x;