popertots
ce3746366c
- New src/entities/item/drop_table.rs: DropEntry (chance, min/max count, pseudo-RNG roll) + DropTable wrapper. grass=5% coin 1-2, rock=10% coin 1, dirt/air=none. - New src/entities/shared_systems/digging.rs: Digger component + dig_system. Any entity with Digger digs the tile below on its interval. Replaces rabbit_dig_system/rabbit_fall_debug_system/RabbitDigTimer/RabbitFallDebug. - New TileMap::dig_floor: remove_floor + insert air. Used by dig_system. - FloorTileData: added drop_table field. Lost Copy derive (Vec field). Updated all 6 terrain.rs call sites with per-tile drop tables. - Pig: removed PigDropTimer + pig_drop_system. Drops were debug placeholder. TODO added for future loot-on-death/butcher system. - Rabbit: removed all debug components/systems. Now uses Digger::new(5.0). - main.rs: removed rabbit_dig_system/rabbit_fall_debug_system/pig_drop_system, added shared_systems::digging::dig_system.
74 lines
1.7 KiB
Rust
74 lines
1.7 KiB
Rust
use crate::entities::item::prefabs::misc::misc_prefabs::MiscPrefab;
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use bevy::prelude::*;
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#[derive(Clone, Debug)]
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pub struct DropEntry {
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pub prefab: MiscPrefab,
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pub chance: f32,
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pub min_count: u32,
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pub max_count: u32,
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}
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impl DropEntry {
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pub fn always(prefab: MiscPrefab) -> Self {
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Self {
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prefab,
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chance: 1.0,
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min_count: 1,
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max_count: 1,
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}
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}
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pub fn chance(prefab: MiscPrefab, chance: f32, min_count: u32, max_count: u32) -> Self {
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Self {
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prefab,
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chance,
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min_count,
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max_count,
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}
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}
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pub fn roll(&self, pos: IVec3) -> u32 {
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if self.chance < 1.0 {
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let r = pseudo_rand_f32(pos);
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if r >= self.chance {
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return 0;
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}
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}
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pseudo_rand_u32(pos) % (self.max_count - self.min_count + 1) + self.min_count
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}
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}
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#[derive(Clone, Debug, Default)]
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pub struct DropTable(pub Vec<DropEntry>);
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impl DropTable {
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pub fn is_empty(&self) -> bool {
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self.0.is_empty()
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}
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}
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fn hash3(pos: IVec3) -> u32 {
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let mut h: u32 = 0;
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h = h.wrapping_mul(374761393).wrapping_add(pos.x as u32);
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h = h.wrapping_mul(374761393).wrapping_add(pos.y as u32);
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h = h.wrapping_mul(374761393).wrapping_add(pos.z as u32);
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h ^= h >> 13;
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h = h.wrapping_mul(1274126177);
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h ^= h >> 16;
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h
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}
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fn pseudo_rand_u32(pos: IVec3) -> u32 {
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let timestamp = std::time::SystemTime::now()
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.duration_since(std::time::UNIX_EPOCH)
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.unwrap()
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.as_nanos() as u32;
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hash3(pos) ^ timestamp
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}
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fn pseudo_rand_f32(pos: IVec3) -> f32 {
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let val = pseudo_rand_u32(pos);
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(val as f32) / (u32::MAX as f32)
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}
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