Better error messages

core/src/io/anuke/mindustry/mod/ContentParser.java

@@ -128,11 +128,11 @@ public class ContentParser{
                 block = Vars.content.getByName(ContentType.block, name);
 
                 if(value.has("type")){
-                    throw new IllegalArgumentException("When overwriting an existing block, you must not re-declared its type. The original type will be used. Block: " + name);
+                    throw new IllegalArgumentException("When overwriting an existing block, you must not re-declare its type. The original type will be used. Block: " + name);
                 }
             }else{
                 //TODO generate dynamically instead of doing.. this
-                Class<? extends Block> type = resolve(value.getString("type"),
+                Class<? extends Block> type = resolve(getType(value),
                 "io.anuke.mindustry.world",
                 "io.anuke.mindustry.world.blocks",
                 "io.anuke.mindustry.world.blocks.defense",
@@ -209,7 +209,7 @@ public class ContentParser{
         ContentType.unit, (TypeParser<UnitType>)(mod, name, value) -> {
             readBundle(ContentType.unit, name, value);
 
-            Class<BaseUnit> type = resolve(value.getString("type"), "io.anuke.mindustry.entities.type.base");
+            Class<BaseUnit> type = resolve(getType(value), "io.anuke.mindustry.entities.type.base");
             UnitType unit = new UnitType(mod + "-" + name, supply(type));
             currentContent = unit;
             read(() -> readFields(unit, value, true));
@@ -222,6 +222,18 @@ public class ContentParser{
         ContentType.zone, parser(ContentType.zone, Zone::new)
     );
 
+    private String getString(JsonValue value, String key){
+        if(value.has(key)){
+            return value.getString(key);
+        }else{
+            throw new IllegalArgumentException((currentContent == null ? "" : currentContent.sourceFile + ": ") + "You are missing a \"" + key + "\". It must be added before the file can be parsed.");
+        }
+    }
+
+    private String getType(JsonValue value){
+        return getString(value, "type");
+    }
+
     private <T extends Content> T find(ContentType type, String name){
         Content c = Vars.content.getByName(type, name);
         if(c == null) c = Vars.content.getByName(type, currentMod.name + "-" + name);

gradle.properties

@@ -1,3 +1,3 @@
 org.gradle.daemon=true
 org.gradle.jvmargs=-Xms256m -Xmx1024m
-archash=411d2784f538dfc10db2962a62833938029dafdd
+archash=6ca636f2f51352022b2c770deafc3b549eb0421c