fix : check is component is registered

elebras1 · elebras1 · commit c9b89ea913d0 · 2026-01-17T14:26:21.000+01:00
diff --git a/src/main/java/com/github/elebras1/flecs/ComponentRegistry.java b/src/main/java/com/github/elebras1/flecs/ComponentRegistry.java
@@ -61,7 +61,13 @@ protected <T> long register(Class<T> componentClass) {
     }
 
     protected <T> long getComponentId(Class<T> componentClass) {
-        return this.componentIds.get(componentClass);
+        long id = this.componentIds.get(componentClass);
+
+        if (id == -1) {
+            throw new IllegalArgumentException("Component not registered: " + componentClass.getName());
+        }
+
+        return id;
     }
 
     protected <T> Component<T> getComponent(Class<T> componentClass) {

Original file line number	Diff line number	Diff line change
`@@ -61,7 +61,13 @@ protected <T> long register(Class<T> componentClass) {`
`61`	`61`	`}`
`62`	`62`
`63`	`63`	`protected <T> long getComponentId(Class<T> componentClass) {`
`64`		`- return this.componentIds.get(componentClass);`
	`64`	`+ long id = this.componentIds.get(componentClass);`
	`65`	`+`
	`66`	`+ if (id == -1) {`
	`67`	`+ throw new IllegalArgumentException("Component not registered: " + componentClass.getName());`
	`68`	`+ }`
	`69`	`+`
	`70`	`+ return id;`
`65`	`71`	`}`
`66`	`72`
`67`	`73`	`protected <T> Component<T> getComponent(Class<T> componentClass) {`