Basic crops system

common/everything_registry.ts

@@ -1,4 +1,5 @@
 import type { ItemStack } from "./inventory.ts";
+import type { BlockVariant } from "./block_models.ts";
 
 export class EverythingRegistry {
 	static #key_to_id = new Map<string, Map<string, number>>();
@@ -65,16 +66,9 @@ export class EverythingRegistry {
 	}
 }
 
-interface TextureSideTopBottom {
-	top: string;
-	bottom: string;
-	side: string;
-}
-
-interface TextureFront {
-	front: string;
-	side: string;
-}
+// one texture for everything, or the model's texture variables: { top, bottom, side } or { front, side } for
+// cubes, { crop } for engine:crop and so on
+export type BlockTextures = string | Record<string, string>;
 
 export interface BlockStateDefinition {
 	name: string;
@@ -88,11 +82,6 @@ interface CompiledStateDefinition {
 	shift: number;
 }
 
-interface BlockStateVariant {
-	model: string;
-	y: number;
-}
-
 // solid: fully opaque. cutout: texels are either opaque or see-through (leaves).
 // translucent: blended and sorted back to front (water, glass)
 export const RENDER_LAYERS = ["solid", "cutout", "translucent"] as const;
@@ -110,7 +99,9 @@ export function block_light_emission(block: BlockRegistry | undefined): number {
 
 export interface BlockRegistry {
 	id: string;
-	textures: string | TextureSideTopBottom | TextureFront;
+	textures: BlockTextures;
+	// the block model, engine:cube when not set. see common/block_models.ts
+	model?: string;
 	// solid when not set. anything else doesn't hide its neighbors' faces
 	render_layer?: RenderLayer;
 	// hide faces between two of this block, like glass and water. defaults to true for translucent blocks
@@ -128,7 +119,8 @@ export interface BlockRegistry {
 	drop_table?: string;
 
 	states?: BlockStateDefinition[];
-	variants?: Record<string, BlockStateVariant>;
+	// a different model or textures for some states, by conditions like "age=7". the first match wins
+	variants?: Record<string, BlockVariant>;
 
 	// right clicking it does something instead of placing a block, clients don't predict placing against it.
 	// behavior runs on the server, see server/game/blocks.ts