Make MishapInvalidPattern display the offending pattern

Author: Robotgiggle

Common/src/main/java/at/petrak/hexcasting/api/casting/iota/PatternIota.java

@@ -98,7 +98,7 @@ public boolean toleratesOther(Iota that) {
                 castedName = special.handler::getName;
                 action = special.handler.act();
             } else if (lookup instanceof PatternShapeMatch.Nothing) {
-                throw new MishapInvalidPattern();
+                throw new MishapInvalidPattern(this.getPattern());
             } else throw new IllegalStateException();
 
             // do the actual calculation!!

Common/src/main/java/at/petrak/hexcasting/api/casting/mishaps/MishapInvalidPattern.kt

@@ -4,10 +4,13 @@ import at.petrak.hexcasting.api.casting.eval.CastingEnvironment
 import at.petrak.hexcasting.api.casting.eval.ResolvedPatternType
 import at.petrak.hexcasting.api.casting.iota.GarbageIota
 import at.petrak.hexcasting.api.casting.iota.Iota
+import at.petrak.hexcasting.api.casting.iota.PatternIota
+import at.petrak.hexcasting.api.casting.math.HexPattern
 import at.petrak.hexcasting.api.pigment.FrozenPigment
+import net.minecraft.network.chat.Component
 import net.minecraft.world.item.DyeColor
 
-class MishapInvalidPattern : Mishap() {
+class MishapInvalidPattern(val pattern: HexPattern? = null) : Mishap() {
     override fun accentColor(ctx: CastingEnvironment, errorCtx: Context): FrozenPigment =
         dyeColor(DyeColor.YELLOW)
 
@@ -17,6 +20,8 @@ class MishapInvalidPattern : Mishap() {
         stack.add(GarbageIota())
     }
 
-    override fun errorMessage(ctx: CastingEnvironment, errorCtx: Context) =
-        error("invalid_pattern")
+    override fun errorMessage(ctx: CastingEnvironment, errorCtx: Context): Component? {
+        if (pattern == null) return error("invalid_pattern_generic")
+        else return error("invalid_pattern", PatternIota.display(pattern))
+    }
 }

Common/src/main/resources/assets/hexcasting/lang/en_us.flatten.json5

@@ -984,7 +984,8 @@
     mishap: {
       "": "%s: %s",
 
-      invalid_pattern: "That pattern isn't associated with any action",
+      invalid_pattern: "The pattern %s isn't associated with any action",
+      invalid_pattern_generic: "That pattern isn't associated with any action",
       unescaped: "Expected to evaluate a pattern, but evaluated %s instead",
 
       not_enough_args: "expected %s or more arguments but the stack was only %s tall",