add trait feature to az-block

azalea-block/Cargo.toml

@@ -9,3 +9,7 @@ version = "0.1.0"
 
 [dependencies]
 block-macros = {path = "./block-macros"}
+
+[features]
+default = ["trait"]
+trait = []

azalea-block/README.md

@@ -6,3 +6,5 @@ There's two main things here, the `BlockState` enum and the `Block` trait.
 `BlockState` is a simple enum with every possible block state as variant, and `Block` is a heavier trait which lets you access information about a block more easily.
 
 Every block is a struct that implements `Block`. You can freely convert between `BlockState` and `Block` with .into().
+
+If you don't want the `Block` trait, set default-features to false.

azalea-block/block-macros/src/lib.rs

@@ -426,6 +426,7 @@ pub fn make_block_states(input: TokenStream) -> TokenStream {
             quote! { BlockState::#block_name_pascal_case }
         };
 
+        if cfg!(feature = "trait") {
             let block_struct = quote! {
                 #[derive(Debug)]
                 pub struct #block_struct_name {
@@ -458,9 +459,10 @@ pub fn make_block_states(input: TokenStream) -> TokenStream {
 
             block_structs.extend(block_struct);
         }
+    }
 
     let last_state_id = (state_id - 1) as u32;
-    quote! {
+    let mut generated = quote! {
         #property_enums
 
         #[repr(u32)]
@@ -469,6 +471,17 @@ pub fn make_block_states(input: TokenStream) -> TokenStream {
             #block_state_enum_variants
         }
 
+        impl BlockState {
+            /// Returns the highest possible state
+            #[inline]
+            pub fn max_state() -> u32 {
+                #last_state_id
+            }
+        }
+    };
+
+    if cfg!(feature = "trait") {
+        generated.extend(quote! {
             #block_structs
 
             impl From<BlockState> for Box<dyn Block> {
@@ -480,15 +493,8 @@ pub fn make_block_states(input: TokenStream) -> TokenStream {
                     }
                 }
             }
-
-        impl BlockState {
-            /// Returns the highest possible state
-            #[inline]
-            pub fn max_state() -> u32 {
-                #last_state_id
-            }
+        });
     }
 
-    }
-    .into()
+    generated.into()
 }

azalea-block/src/lib.rs

@@ -1,6 +1,8 @@
+#[cfg(feature = "trait")]
 mod behavior;
 mod blocks;
 
+#[cfg(feature = "trait")]
 pub use behavior::BlockBehavior;
 pub use blocks::*;
 

azalea-world/Cargo.toml

@@ -6,7 +6,7 @@ version = "0.1.0"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
-azalea-block = {path = "../azalea-block"}
+azalea-block = {path = "../azalea-block", default-features = false}
 azalea-buf = {path = "../azalea-buf"}
 azalea-core = {path = "../azalea-core"}
 azalea-entity = {path = "../azalea-entity"}