Perk Structures

typedef struct {
    i32 name_offset;        // +0x00
    i32 icon_index;         // +0x04
    i32 rarity;             // +0x08
    i32 flags;              // +0x0c
    i32 max_count;          // +0x10
    // ... 12 more bytes
} perk_entry_t;  // 0x20 bytes

int perk_count = player_perk_counts[player_idx * 0x360 + 0x94 + perk_id * 4];

int perk_count_get(int perk_id) {
    return player_perk_counts[current_player][perk_id];
}

void spawn_perk_choice() {
    int total_weight = 0;
    for (int i = 0; i < perk_count; i++) {
        total_weight += perk_table[i].rarity;
    }
    
    int roll = rand() % total_weight;
    // Select perk based on weighted roll
}

void perk_apply_effect(int player_idx, int perk_id) {
    player_perk_counts[player_idx][perk_id]++;
    
    switch (perk_id) {
        case 0x01:  // Crimsonier
            player_damage_multiplier[player_idx] *= 1.15;
            break;
        
        case 0x04:  // Fast Reloader
            player_reload_multiplier[player_idx] *= 0.5;
            break;
        
        case 0x32:  // Angry Reloader (passive)
            // Checked in reload_complete()
            break;
        
        // ...
    }
}

float calculate_damage(int player_idx, float base_damage) {
    float damage = base_damage;
    
    // Crimsonier stacks
    int crimsonier_count = perk_count_get(0x01);
    damage *= pow(1.15, crimsonier_count);
    
    // Poison Bullets
    if (perk_count_get(0x34) > 0) {
        apply_poison_to_target();
    }
    
    return damage;
}

void start_reload(int player_idx) {
    float reload_time = weapon_reload_time[player_idx];
    
    // Fast Reloader
    int fast_reload_count = perk_count_get(0x04);
    reload_time *= pow(0.5, fast_reload_count);
    
    player_reload_timer[player_idx] = reload_time;
    player_reload_active[player_idx] = 1;
}

void reload_complete(int player_idx) {
    player_reload_active[player_idx] = 0;
    player_ammo[player_idx] = player_clip_size[player_idx];
    
    // Angry Reloader burst
    if (perk_count_get(0x32) > 0) {
        spawn_plasma_burst(player_pos_x[player_idx], player_pos_y[player_idx]);
    }
}

void player_update_movement(int player_idx) {
    float speed = player_move_speed[player_idx];
    
    // Long Distance Runner
    int runner_count = perk_count_get(0x05);
    speed *= pow(1.15, runner_count);
    
    // Haste
    if (perk_count_get(0x0b) > 0) {
        speed *= 1.15;
    }
    
    player_pos_x[player_idx] += vel_x * speed * delta_time;
    player_pos_y[player_idx] += vel_y * speed * delta_time;
}

final_value = base * pow(multiplier, count)

final_value = base + (bonus * count)

if (perk_count_get(perk_id) > 0) {
    apply_effect();
}