perf: fix extreme lag (20x) when crafting in item-heavy area (#8244)

perf: cache tool speed multiplier during crafting

Assisted-by: gpt-5.3-codex on opencode

Co-authored-by: chatgpt-codex-connector[bot] <199175422+chatgpt-codex-connector[bot]@users.noreply.github.com>

Author: scarf005

src/activity_handlers.cpp

@@ -31,6 +31,7 @@
 #include "construction_partial.h"
 #include "craft_command.h"
 #include "crafting.h"
+#include "crafting_quality.h"
 #include "creature.h"
 #include "damage.h"
 #include "debug.h"
@@ -113,6 +114,10 @@ static const activity_id ACT_CONSUME_FOOD_MENU( "ACT_CONSUME_FOOD_MENU" );
 static const activity_id ACT_CONSUME_MEDS_MENU( "ACT_CONSUME_MEDS_MENU" );
 static const activity_id ACT_CRACKING( "ACT_CRACKING" );
 static const activity_id ACT_CRAFT( "ACT_CRAFT" );
+static constexpr auto craft_is_long_idx = 0;
+static constexpr auto craft_bench_type_idx = 1;
+static constexpr auto craft_tools_mult_percent_idx = 2;
+static constexpr auto craft_tools_mult_next_refresh_idx = 3;
 static const activity_id ACT_DISMEMBER( "ACT_DISMEMBER" );
 static const activity_id ACT_DISSECT( "ACT_DISSECT" );
 static const activity_id ACT_EAT_MENU( "ACT_EAT_MENU" );
@@ -3800,18 +3805,28 @@ void activity_handlers::craft_do_turn( player_activity *act, player *p )
         return;
     }
 
-    if( !p->can_continue_craft( *craft ) ) {
-        p->cancel_activity();
-        return;
-    }
-
     const recipe &rec = craft->get_making();
     const tripoint bench_pos = act->coords.front();
     // Ugly
-    bench_type bench_t = bench_type( act->values[1] );
-    const float crafting_speed = crafting_speed_multiplier( *p, *craft, bench_location{bench_t, bench_pos} );
+    bench_type bench_t = bench_type( act->values[craft_bench_type_idx] );
+
+    while( act->values.size() <= craft_tools_mult_next_refresh_idx ) {
+        act->values.push_back( 0 );
+    }
+
+    const auto now_turn = to_turn<int>( calendar::turn );
+    if( now_turn >= act->values[craft_tools_mult_next_refresh_idx] ) {
+        const auto tools_mult = crafting_tools_speed_multiplier( *p, rec );
+        act->values[craft_tools_mult_percent_idx] = std::round( tools_mult * 100.0f );
+        act->values[craft_tools_mult_next_refresh_idx] = INT_MAX;
+    }
+
+    const auto tools_mult_cached = static_cast<float>( act->values[craft_tools_mult_percent_idx] ) /
+                                   100.0f;
+    const float crafting_speed = crafting_speed_multiplier( *p, *craft, bench_location{bench_t, bench_pos},
+                                 tools_mult_cached );
     const int assistants = p->available_assistant_count( craft->get_making() );
-    const bool is_long = act->values[0];
+    const bool is_long = act->values[craft_is_long_idx];
 
     if( crafting_speed <= 0.0f ) {
         p->cancel_activity();
@@ -3838,30 +3853,15 @@ void activity_handlers::craft_do_turn( player_activity *act, player *p )
     const auto new_counter_f = current_progress / base_total_moves * 10'000'000.0;
     // This is to ensure we don't over count skill steps
     const auto new_counter = std::min( static_cast<int>( std::round( new_counter_f ) ), 10'000'000 );
+    auto five_percent_steps = new_counter / 500'000 - old_counter / 500'000;
     craft->set_counter( new_counter );
 
     p->set_moves( 0 );
 
-    // Skill and tools are gained/consumed after every 5% progress
-    int five_percent_steps = craft->get_counter() / 500'000 - old_counter / 500'000;
     if( five_percent_steps > 0 ) {
         p->craft_skill_gain( *craft, five_percent_steps );
     }
 
-    // Unlike skill, tools are consumed once at the start and should not be consumed at the end
-    if( craft->get_counter() >= 10'000'000 ) {
-        --five_percent_steps;
-    }
-
-    if( five_percent_steps > 0 ) {
-        if( !p->craft_consume_tools( *craft, five_percent_steps, false ) ) {
-            // So we don't skip over any tool comsuption
-            craft->set_counter( craft->get_counter() - ( craft->get_counter() % 500'000 + 1 ) );
-            p->cancel_activity();
-            return;
-        }
-    }
-
     // if item_counter has reached 100% or more
     if( craft->get_counter() >= 10'000'000 ) {
         //TODO!: CHEEKY check

src/craft_command.cpp

@@ -274,8 +274,65 @@ detached_ptr<item> craft_command::create_in_progress_craft()
 
     new_craft->set_cached_tool_selections( tool_selections );
     new_craft->set_tools_to_continue( true );
-    // Pass true to indicate that we are starting the craft and the remainder should be consumed as well
-    crafter->craft_consume_tools( *new_craft, 1, true );
+
+    for( const comp_selection<tool_comp> &tool_sel : tool_selections ) {
+        const auto type = tool_sel.comp.type;
+        if( tool_sel.comp.count > 0 ) {
+            const auto full_cost = tool_sel.comp.count * batch_size;
+            switch( tool_sel.use_from ) {
+                case usage_from::player:
+                    if( !crafter->has_charges( type, full_cost ) ) {
+                        return detached_ptr<item>();
+                    }
+                    break;
+                case usage_from::map:
+                    if( !map_inv.has_charges( type, full_cost ) ) {
+                        return detached_ptr<item>();
+                    }
+                    break;
+                case usage_from::both:
+                    if( crafter->charges_of( type ) + map_inv.charges_of( type ) < full_cost ) {
+                        return detached_ptr<item>();
+                    }
+                    break;
+                case usage_from::none:
+                case usage_from::cancel:
+                case usage_from::num_usages_from:
+                    break;
+            }
+        } else {
+            switch( tool_sel.use_from ) {
+                case usage_from::player:
+                    if( !crafter->has_amount( type, 1 ) ) {
+                        return detached_ptr<item>();
+                    }
+                    break;
+                case usage_from::map:
+                    if( !map_inv.has_tools( type, 1 ) ) {
+                        return detached_ptr<item>();
+                    }
+                    break;
+                case usage_from::both:
+                    if( crafter->amount_of( type ) + map_inv.amount_of( type ) < 1 ) {
+                        return detached_ptr<item>();
+                    }
+                    break;
+                case usage_from::none:
+                case usage_from::cancel:
+                case usage_from::num_usages_from:
+                    break;
+            }
+        }
+    }
+    for( const comp_selection<tool_comp> &tool : tool_selections ) {
+        if( tool.comp.count <= 0 ) {
+            continue;
+        }
+        auto to_consume = tool;
+        to_consume.comp.count *= batch_size;
+        crafter->consume_tools( to_consume, 1 );
+    }
+    new_craft->set_var( "craft_tools_fully_prepaid", 1 );
     new_craft->set_next_failure_point( *crafter );
 
     return new_craft;

src/crafting.cpp

@@ -261,7 +261,8 @@ float crafting_speed_multiplier( const Character &who, const recipe &rec, bool )
 }
 
 float crafting_speed_multiplier( const Character &who, const item &craft,
-                                 const bench_location &bench )
+                                 const bench_location &bench,
+                                 const std::optional<float> tools_multi_override )
 {
     if( !craft.is_craft() ) {
         debugmsg( "Can't calculate crafting speed multiplier of non-craft '%s'", craft.tname() );
@@ -273,7 +274,9 @@ float crafting_speed_multiplier( const Character &who, const item &craft,
     const float light_multi = lighting_crafting_speed_multiplier( who, rec );
     const float bench_multi = workbench_crafting_speed_multiplier( craft, bench );
     const float morale_multi = morale_crafting_speed_multiplier( who, rec );
-    const auto tools_multi = crafting_tools_speed_multiplier( who, rec );
+    const auto tools_multi = tools_multi_override
+                             ? *tools_multi_override
+                             : crafting_tools_speed_multiplier( who, rec );
     const float mutation_multi = who.mutation_value( "crafting_speed_modifier" );
     const float game_opt_multi = get_option<int>( "CRAFTING_SPEED_MULT" ) == 0 ? 9999 :
                                  100.0f / get_option<int>( "CRAFTING_SPEED_MULT" );
@@ -547,9 +550,9 @@ const inventory &Character::crafting_inventory( const tripoint &src_pos, int rad
     if( src_pos == tripoint_zero ) {
         inv_pos = pos();
     }
-    if( cached_moves == moves
-        && cached_time == calendar::turn
-        && cached_position == inv_pos ) {
+    const auto cache_hit = cached_time == calendar::turn
+                           && cached_position == inv_pos;
+    if( cache_hit ) {
         return cached_crafting_inventory;
     }
     cached_crafting_inventory.form_from_map( inv_pos, radius, this, false, clear_path );
@@ -753,6 +756,8 @@ item *Character::start_craft( craft_command &command, const tripoint & )
     activity->values.push_back( command.is_long() );
     // Ugly
     activity->values.push_back( static_cast<int>( bench.type ) );
+    activity->values.push_back( 100 );
+    activity->values.push_back( 0 );
 
     add_msg_player_or_npc(
         pgettext( "in progress craft", "You start working on the %s." ),

src/crafting.h

@@ -1,6 +1,7 @@
 #pragma once
 
 #include <list>
+#include <optional>
 #include <set>
 #include <vector>
 
@@ -45,7 +46,8 @@ float morale_crafting_speed_multiplier( const Character &who, const recipe &rec
 float lighting_crafting_speed_multiplier( const Character &who, const recipe &rec );
 float crafting_speed_multiplier( const Character &who, const recipe &rec, bool );
 float crafting_speed_multiplier( const Character &who, const item &craft,
-                                 const bench_location &bench );
+                                 const bench_location &bench,
+                                 std::optional<float> tools_multi_override = std::nullopt );
 void complete_craft( Character &who, item &craft );
 
 namespace crafting

src/iuse.cpp

@@ -8669,6 +8669,10 @@ int iuse::craft( player *p, item *it, bool, const tripoint &pos )
         return 0;
     }
 
+    if( it->get_var( "craft_tools_fully_prepaid", 0 ) == 0 ) {
+        it->set_var( "craft_tools_fully_prepaid", 1 );
+    }
+
     bench_location best_bench = find_best_bench( *p, *it );
     p->add_msg_player_or_npc(
         pgettext( "in progress craft", "You start working on the %s." ),
@@ -8700,6 +8704,8 @@ int iuse::craft( player *p, item *it, bool, const tripoint &pos )
     p->activity->values.push_back( 0 ); // Not a long craft
     // Ugly
     p->activity->values.push_back( static_cast<int>( best_bench.type ) );
+    p->activity->values.push_back( 100 );
+    p->activity->values.push_back( 0 );
 
     return 0;
 }

src/player_activity.cpp

@@ -53,6 +53,8 @@ static const activity_id ACT_CONSUME_DRINK_MENU( "ACT_CONSUME_DRINK_MENU" );
 static const activity_id ACT_CONSUME_FOOD_MENU( "ACT_CONSUME_FOOD_MENU" );
 static const activity_id ACT_CONSUME_MEDS_MENU( "ACT_CONSUME_MEDS_MENU" );
 static const activity_id ACT_CRAFT( "ACT_CRAFT" );
+static constexpr auto craft_bench_type_idx = 1;
+static constexpr auto craft_tools_mult_percent_idx = 2;
 static const activity_id ACT_DIG( "ACT_DIG" );
 static const activity_id ACT_DIG_CHANNEL( "ACT_DIG_CHANNEL" );
 static const activity_id ACT_EAT_MENU( "ACT_EAT_MENU" );
@@ -207,14 +209,16 @@ static std::string craft_progress_message( const avatar &u, const player_activit
     const recipe &rec = craft->get_making();
     const tripoint bench_pos = act.coords.front();
     // Ugly
-    bench_type bench_t = bench_type( act.values[1] );
+    const auto bench_t = bench_type( act.values[craft_bench_type_idx] );
 
     const bench_location bench{ bench_t, bench_pos };
 
     const float light_mult = lighting_crafting_speed_multiplier( u, rec );
     const float bench_mult = workbench_crafting_speed_multiplier( *craft, bench );
     const float morale_mult = morale_crafting_speed_multiplier( u, rec );
-    const auto tools_mult = crafting_tools_speed_multiplier( u, rec );
+    const auto tools_mult = ( act.values.size() > craft_tools_mult_percent_idx )
+                            ? static_cast<float>( act.values[craft_tools_mult_percent_idx] ) / 100.0f
+                            : crafting_tools_speed_multiplier( u, rec );
     const int assistants = u.available_assistant_count( craft->get_making() );
     const float base_total_moves = std::max( 1, rec.batch_time( craft->charges, 1.0f, 0 ) );
     const float assist_total_moves = std::max( 1, rec.batch_time( craft->charges, 1.0f, assistants ) );