various improvements

code/game/src/assets.c

@@ -59,10 +59,12 @@ void assets_destroy(void) {
 }
 
 uint16_t assets_find(asset_id id) {
-    for (uint32_t i=0; i<ASSETS_COUNT; i++) {
+    for (uint16_t i=0; i<ASSETS_COUNT; i++) {
         if (assets[i].id == id)
             return i;
     }
+    
+    ZPL_PANIC("Unknown asset id: %d\n", id);
     return ASSET_INVALID;
 }
 

code/game/src/debug_ui_actions.c

@@ -82,6 +82,15 @@ ActEraseWorldChanges(void) {
         for (int x = 0; x < 100; x++) {
             world_block_lookup l = world_block_from_realpos((p->x - (x*bs)/2.0f), p->y - (y*bs)/2.0f);
             world_chunk_place_block(l.chunk_id, l.id, 0);
+            
+            if (l.is_outer && l.block_id > 0) {
+                asset_id item_asset = blocks_get_asset(l.block_id);
+                uint64_t e = item_spawn(item_asset, 1);
+                
+                Position *dest = ecs_get_mut(world_ecs(), e, Position, NULL);
+                dest->x = (p->x - (x*bs)/2.0f);
+                dest->y = (p->y - (y*bs)/2.0f);
+            }
         }
     }
     

code/game/src/items.c

@@ -11,19 +11,6 @@
 #include "items_list.c"
 #define ITEMS_COUNT (sizeof(items)/sizeof(item_desc))
 
-uint64_t item_spawn(asset_id kind, uint32_t qty) {
-    ecs_entity_t e = entity_spawn(EKIND_ITEM);
-    
-    ItemDrop *d = ecs_get_mut(world_ecs(), e, ItemDrop, NULL);
-    *d = (ItemDrop){
-        .kind = kind,
-        .quantity = qty,
-        .merger_time = 0,
-    };
-    
-    return (uint64_t)e;
-}
-
 static inline uint16_t item_resolve_proxy(uint16_t id) {
     ZPL_ASSERT(id >= 0 && id < ITEMS_COUNT);
     item_usage usage = items[id].usage;
@@ -33,11 +20,30 @@ static inline uint16_t item_resolve_proxy(uint16_t id) {
     return id;
 }
 
+static inline asset_id item_fix_kind(asset_id id) {
+    return items[item_find(id)].kind;
+}
+
+uint64_t item_spawn(asset_id kind, uint32_t qty) {
+    ecs_entity_t e = entity_spawn(EKIND_ITEM);
+    
+    ItemDrop *d = ecs_get_mut(world_ecs(), e, ItemDrop, NULL);
+    *d = (ItemDrop){
+        .kind = item_fix_kind(kind),
+        .quantity = qty,
+        .merger_time = 0,
+    };
+    
+    return (uint64_t)e;
+}
+
 uint16_t item_find(asset_id kind) {
     for (uint16_t i=0; i<ITEMS_COUNT; i++) {
         if (items[i].kind == kind)
             return item_resolve_proxy(i);
     }
+    
+    ZPL_PANIC("Unknown asset id: %d\n", kind);
     return ASSET_INVALID;
 }
 

code/game/src/world/blocks.c

@@ -57,6 +57,10 @@ uint8_t blocks_find(asset_id kind) {
     return 0xF;
 }
 
+asset_id blocks_get_asset(uint8_t id) {
+    return blocks[id].kind;
+}
+
 char blocks_get_symbol(uint8_t id) {
     return blocks[id].symbol;
 }

code/game/src/world/blocks.h

@@ -12,7 +12,7 @@ void blocks_destroy(void);
 
 uint8_t blocks_find(asset_id kind);
 
-char *blocks_get_name(uint8_t id);
+asset_id blocks_get_asset(uint8_t id);
 char blocks_get_symbol(uint8_t id);
 uint32_t blocks_get_flags(uint8_t id);
 float blocks_get_drag(uint8_t id);

code/game/src/world/blocks_list.c

@@ -18,8 +18,8 @@ static block blocks[] = {
     BLOCK(ASSET_WOOD, BLOCK_FLAG_COLLISION, '#', .drag = 1.0f , .friction = 1.0f, .bounce = 0.0f),
     BLOCK(ASSET_TREE, BLOCK_FLAG_COLLISION, '@', .drag = 1.0f , .friction = 1.0f, .bounce = 0.0f),
     
-    BLOCK(ASSET_BELT_LEFT, 0, '@', .drag = 1.0f , .friction = 1.0f, .velx = -90.0f),
+    BLOCK(ASSET_BELT_LEFT, 0, '@', .drag = 1.0f , .friction = 1.0f, .velx = -120.0f),
-    BLOCK(ASSET_BELT_RIGHT, 0, '@', .drag = 1.0f , .friction = 1.0f, .velx = 90.0f),
+    BLOCK(ASSET_BELT_RIGHT, 0, '@', .drag = 1.0f , .friction = 1.0f, .velx = 120.0f),
-    BLOCK(ASSET_BELT_UP, 0, '@', .drag = 1.0f , .friction = 1.0f, .vely = -90.0f),
+    BLOCK(ASSET_BELT_UP, 0, '@', .drag = 1.0f , .friction = 1.0f, .vely = -120.0f),
-    BLOCK(ASSET_BELT_DOWN, 0, '@', .drag = 1.0f , .friction = 1.0f, .vely = 90.0f),
+    BLOCK(ASSET_BELT_DOWN, 0, '@', .drag = 1.0f , .friction = 1.0f, .vely = 120.0f),
 };

code/game/src/world/world.c

@@ -403,12 +403,14 @@ world_block_lookup world_block_from_realpos(float x, float y) {
     float chx = x - chunk_x * size;
     float chy = y - chunk_y * size;
     
-    uint32_t bx = (uint32_t)chx / WORLD_BLOCK_SIZE;
+    uint16_t bx = (uint16_t)chx / WORLD_BLOCK_SIZE;
-    uint32_t by = (uint32_t)chy / WORLD_BLOCK_SIZE;
+    uint16_t by = (uint16_t)chy / WORLD_BLOCK_SIZE;
-    uint32_t block_idx = (by*world.chunk_size)+bx;
+    uint16_t block_idx = (by*world.chunk_size)+bx;
     uint8_t block_id = world.outer_block_mapping[chunk_id][block_idx];
+    bool is_outer = true;
     if (block_id == 0) {
         block_id = world.block_mapping[chunk_id][block_idx];
+        is_outer = false;
     }
     
     // NOTE(zaklaus): pos relative to block's center
@@ -422,6 +424,7 @@ world_block_lookup world_block_from_realpos(float x, float y) {
         .chunk_e = e,
         .ox = box,
         .oy = boy,
+        .is_outer = is_outer,
     };
     
     return lookup;

code/game/src/world/world.h

@@ -77,11 +77,12 @@ uint16_t world_dim(void);
 ecs_entity_t world_chunk_mapping(librg_chunk id);
 
 typedef struct {
-    uint32_t id;
+    uint16_t id;
     uint8_t block_id;
     ecs_entity_t chunk_e;
     int64_t chunk_id;
     float ox, oy;
+    bool is_outer;
 } world_block_lookup;
 
 world_block_lookup world_block_from_realpos(float x, float y);