recipe filtering in crafting list

code/foundation/src/gui/inventory.c

@@ -101,14 +101,15 @@ inv_draw_result inventory_draw_crafting_btn(float xpos, float ypos, const char *
 }
 
 static inline
-bool inventory_draw_crafting_list(float xpos, float ypos) {
-    // NOTE(zaklaus): collect the list of supported recipes
-    // TODO(zaklaus): too lazy, draw all recipes everywhere for now
-    
+bool inventory_draw_crafting_list(entity_view *e, float xpos, float ypos) {
     float start_xpos = xpos;
     float start_ypos = ypos;
-    for (uint16_t i = 0; i < craft_get_num_recipes(); ++i) {
-        asset_id id = craft_get_recipe_asset(i);
+
+ 	if (!e->sel_ent)
+		return DAREA_OUTSIDE;
+
+    for (uint16_t i = 0; e->craftables[i]; ++i) {
+		asset_id id = e->craftables[i];
         inventory_draw_crafting_btn(start_xpos+1, ypos+1, asset_names[id], id, BLACK);
         inv_draw_result entry = inventory_draw_crafting_btn(start_xpos, ypos, asset_names[id], id, RAYWHITE);
         ypos = entry.y;
@@ -134,7 +135,7 @@ void inventory_draw_panel(entity_view *e, bool is_player, float sx, float sy){
     inv_keystate *inv = (!is_player) ? &storage_inv : &player_inv;
     inv_keystate *inv2 = (is_player) ? &storage_inv : &player_inv;
     
-    bool inside_craft = !is_player && inventory_draw_crafting_list(screenWidth/2.0f - 684, screenHeight/2.0f - 128);
+    bool inside_craft = !is_player && inventory_draw_crafting_list(e, screenWidth/2.0f - 684, screenHeight/2.0f - 128);
     
     inv->is_inside = check_mouse_area(sx, sy, (float)grid_size, (float)grid_size) != DAREA_OUTSIDE;
     inv_is_inside |= inv->is_inside || inside_craft;

code/foundation/src/models/crafting.c

@@ -52,6 +52,16 @@ bool craft_is_reagent_used_in_producer(asset_id reagent, asset_id producer) {
     return craft__find_num_recipes_by_reagent(producer, reagent) > 0;
 }
 
+bool craft_is_item_produced_by_producer(asset_id item, asset_id producer) {
+	uint32_t num_recipes=0;
+	for (int i = 0; i < (int)MAX_RECIPES; ++i) {
+		if (recipes[i].producer == producer && item == recipes[i].product) {
+			return true;
+		}
+	}
+	return false;
+}
+
 uint16_t craft_get_num_recipes(void) {
     return MAX_RECIPES;
 }

code/foundation/src/models/crafting.h

@@ -12,6 +12,9 @@ asset_id craft_perform_recipe(ecs_entity_t *items, asset_id producer, asset_id t
 // NOTE(zaklaus): mostly used by item router so we don't push reagents out
 bool craft_is_reagent_used_in_producer(asset_id reagent, asset_id producer);
 
+// used to filter out craftables
+bool craft_is_item_produced_by_producer(asset_id item, asset_id producer);
+
 // NOTE(zaklaus): utilities
 uint16_t craft_get_num_recipes(void);
 asset_id craft_get_recipe_asset(uint16_t id);

code/foundation/src/world/entity_view.h

@@ -90,7 +90,7 @@ typedef struct entity_view {
     uint8_t storage_selected_item;
     
     // NOTE(zaklaus): craftable recipes
-    uint8_t craftables[MAX_CRAFTABLES];
+    uint16_t craftables[MAX_CRAFTABLES];
     
     // NOTE(zaklaus): entity picking
     uint64_t pick_ent;

code/foundation/src/world/world.c

@@ -11,6 +11,7 @@
 #include "platform/profiler.h"
 #include "core/game.h"
 #include "models/entity.h"
+#include "models/crafting.h"
 
 #include "packets/pkt_send_librg_update.h"
 
@@ -103,9 +104,17 @@ entity_view *world_build_entity_view(int64_t e) {
                     
                     view.storage_selected_item = in->storage_selected_item;
                     
-                    if (ecs_get(world_ecs(), e, Producer)) {
-                        Device const* dev = ecs_get(world_ecs(), e, Device);
+					if (ecs_get(world_ecs(), in->storage_ent, Producer)) {
+						Device const* dev = ecs_get(world_ecs(), in->storage_ent, Device);
+						zpl_zero_array(view.craftables, MAX_CRAFTABLES);
                         
+						for (uint16_t i = 0, si = 0; i < craft_get_num_recipes(); i++) {
+							ZPL_ASSERT(si < MAX_CRAFTABLES);
+							asset_id pid = craft_get_recipe_asset(i);
+							if (craft_is_item_produced_by_producer(pid, dev->asset)) {
+								view.craftables[si++] = pid;
+							}
+						}
                     }
                 }
             }