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implement growing saplings with bone meal

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p2r3
2025-08-23 23:04:45 +03:00
parent 5ac426f21a
commit aa74a55a19
3 changed files with 98 additions and 15 deletions
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52
src/procedures.c
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@@ -7,6 +7,8 @@
#include "packets.h"
#include "registries.h"
#include "worldgen.h"
#include "structures.h"
#include "procedures.h"
int client_states[MAX_PLAYERS * 2];
@@ -573,6 +575,35 @@ void handlePlayerUseItem (PlayerData *player, short x, short y, short z, uint8_t
}
}
// If the selected slot doesn't hold any items, exit
uint8_t *count = &player->inventory_count[player->hotbar];
if (*count == 0) return;
// Check special item handling
uint16_t *item = &player->inventory_items[player->hotbar];
if (*item == I_bone_meal) {
uint8_t target = getBlockAt(x, y, z);
uint8_t target_below = getBlockAt(x, y - 1, z);
if (target == B_oak_sapling) {
// Consume the bone meal (yes, even before checks)
// Wasting bone meal on misplanted saplings is vanilla behavior
if ((*count -= 1) == 0) item = 0;
sc_setContainerSlot(player->client_fd, 0, serverSlotToClientSlot(0, player->hotbar), *count, *item);
if ( // Saplings can only grow when placed on these blocks
target_below == B_dirt ||
target_below == B_grass_block ||
target_below == B_snowy_grass_block
) {
// Bone meal has a 25% chance of growing a tree from a sapling
if ((fast_rand() & 3) == 0) placeTreeStructure(x, y, z);
}
}
}
// If the selected item doesn't correspond to a block, exit
uint8_t block = I_to_B(*item);
if (block == 0) return;
switch (face) {
case 0: y -= 1; break;
case 1: y += 1; break;
@@ -583,18 +614,9 @@ void handlePlayerUseItem (PlayerData *player, short x, short y, short z, uint8_t
default: break;
}
uint16_t *item = &player->inventory_items[player->hotbar];
uint8_t *count = &player->inventory_count[player->hotbar];
uint8_t block = I_to_B(*item);
// if the selected item doesn't correspond to a block, exit
if (block == 0) return;
// if the selected slot doesn't hold any items, exit
if (*count == 0) return;
// check if the block's placement conditions are met
// Check if the block's placement conditions are met
if (
!( // player is not in the way
!( // Is player in the way?
!isPassableBlock(block) &&
x == player->x &&
(y == player->y || y == player->y + 1) &&
@@ -603,15 +625,15 @@ void handlePlayerUseItem (PlayerData *player, short x, short y, short z, uint8_t
isReplaceableBlock(getBlockAt(x, y, z)) &&
(!isColumnBlock(block) || getBlockAt(x, y - 1, z) != B_air)
) {
// decrease item amount in selected slot
// Decrease item amount in selected slot
*count -= 1;
// clear item id in slot if amount is zero
// Clear item id in slot if amount is zero
if (*count == 0) *item = 0;
// apply server-side block change
// Apply server-side block change
makeBlockChange(x, y, z, block);
}
// sync hotbar contents to player
// Sync hotbar contents to player
sc_setContainerSlot(player->client_fd, 0, serverSlotToClientSlot(0, player->hotbar), *count, *item);
}