feat: add entity explosion resistance option

Common/src/main/java/at/petrak/hexcasting/api/mod/HexConfig.java

@@ -27,6 +27,8 @@ public interface CommonConfigAccess {
 
         int artifactCooldown();
 
+        int explosionScaling();
+
         long DEFAULT_DUST_MEDIA_AMOUNT = MediaConstants.DUST_UNIT;
         long DEFAULT_SHARD_MEDIA_AMOUNT = MediaConstants.SHARD_UNIT;
         long DEFAULT_CHARGED_MEDIA_AMOUNT = MediaConstants.CRYSTAL_UNIT;
@@ -36,6 +38,7 @@ public interface CommonConfigAccess {
         int DEFAULT_TRINKET_COOLDOWN = 5;
         int DEFAULT_ARTIFACT_COOLDOWN = 3;
 
+        int DEFAULT_EXPLOSION_SCALING = 100;
     }
 
     public interface ClientConfigAccess {

Common/src/main/java/at/petrak/hexcasting/common/casting/actions/spells/OpExplode.kt

@@ -9,6 +9,7 @@ import at.petrak.hexcasting.api.casting.getVec3
 import at.petrak.hexcasting.api.casting.iota.Iota
 import at.petrak.hexcasting.api.misc.MediaConstants
 import at.petrak.hexcasting.common.casting.actions.selectors.OpGetEntitiesBy
+import at.petrak.hexcasting.helper.ExplosionSourceTracker
 import net.minecraft.core.BlockPos
 import net.minecraft.util.Mth
 import net.minecraft.world.level.Level
@@ -53,15 +54,20 @@ class OpExplode(val fire: Boolean) : SpellAction {
             if (!env.canEditBlockAt(BlockPos.containing(pos)))
                 return
 
-            env.world.explode(
-                env.castingEntity,
-                pos.x,
-                pos.y,
-                pos.z,
-                strength.toFloat(),
-                this.fire,
-                Level.ExplosionInteraction.TNT
-            )
+            ExplosionSourceTracker.setSpellSource(true)
+            try {
+                env.world.explode(
+                    env.castingEntity,
+                    pos.x,
+                    pos.y,
+                    pos.z,
+                    strength.toFloat(),
+                    this.fire,
+                    Level.ExplosionInteraction.TNT
+                )
+            } finally {
+                ExplosionSourceTracker.setSpellSource(false)
+            }
         }
     }
 }

Common/src/main/java/at/petrak/hexcasting/helper/ExplosionSourceTracker.java

@@ -0,0 +1,13 @@
+package at.petrak.hexcasting.helper;
+
+public final class ExplosionSourceTracker {
+    private static final ThreadLocal<Boolean> IS_SPELL_SOURCE = ThreadLocal.withInitial(() -> false);
+
+    public static boolean isSpellSource() {
+        return IS_SPELL_SOURCE.get();
+    }
+
+    public static void setSpellSource(boolean spellSource) {
+        IS_SPELL_SOURCE.set(spellSource);
+    }
+}

Common/src/main/java/at/petrak/hexcasting/mixin/MixinExplosion.java

@@ -0,0 +1,19 @@
+package at.petrak.hexcasting.mixin;
+
+import at.petrak.hexcasting.api.mod.HexConfig;
+import at.petrak.hexcasting.helper.ExplosionSourceTracker;
+import net.minecraft.world.level.Explosion;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.ModifyArgs;
+import org.spongepowered.asm.mixin.injection.invoke.arg.Args;
+
+@Mixin(Explosion.class)
+public abstract class MixinExplosion {
+    @ModifyArgs(method = "explode", at = @At(value = "INVOKE", target = "Lnet/minecraft/world/entity/Entity;hurt(Lnet/minecraft/world/damagesource/DamageSource;F)Z"))
+    private void scaleEntityExplosionDamage(Args args) {
+        if (ExplosionSourceTracker.isSpellSource()) {
+            args.set(1, (Float) args.get(1) * HexConfig.common().explosionScaling() / 100f);
+        }
+    }
+}

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

@@ -337,6 +337,10 @@
           "": "Artifact Cooldown",
           "@Tooltip": "Cooldown of an artifact in ticks",
         },
+        explosionScaling: {
+          "": "Explosion Scaling",
+          "@Tooltip": "Scaling for entity damage caused by explosion spells in %",
+        },
       },
 
       client: {

Common/src/main/resources/hexplat.mixins.json

@@ -11,6 +11,7 @@
     "MixinVillager",
     "MixinWanderingTrader",
     "MixinWitch",
+    "MixinExplosion",
     "accessor.AccessorAbstractArrow",
     "accessor.AccessorEntity",
     "accessor.AccessorLivingEntity",

Fabric/src/main/java/at/petrak/hexcasting/fabric/FabricHexConfig.java

@@ -80,6 +80,8 @@ public static final class Common implements HexConfig.CommonConfigAccess, Config
         @ConfigEntry.Gui.Tooltip
         private int artifactCooldown = DEFAULT_ARTIFACT_COOLDOWN;
 
+        @ConfigEntry.Gui.Tooltip
+        private int explosionScaling = DEFAULT_EXPLOSION_SCALING;
 
         @Override
         public void validatePostLoad() throws ValidationException {
@@ -123,6 +125,12 @@ public int trinketCooldown() {
         public int artifactCooldown() {
             return artifactCooldown;
         }
+
+        @Override
+        public int explosionScaling() {
+            return explosionScaling;
+        }
+
     }
 
     @Config(name = "client")

Forge/src/main/java/at/petrak/hexcasting/forge/ForgeHexConfig.java

@@ -23,6 +23,8 @@ public class ForgeHexConfig implements HexConfig.CommonConfigAccess {
     private static ForgeConfigSpec.IntValue trinketCooldown;
     private static ForgeConfigSpec.IntValue artifactCooldown;
 
+    private static ForgeConfigSpec.IntValue explosionScaling;
+
     public ForgeHexConfig(ForgeConfigSpec.Builder builder) {
         builder.push("Media Amounts");
         dustMediaAmount = builder.comment("How much media a single Amethyst Dust item is worth")
@@ -43,6 +45,11 @@ public ForgeHexConfig(ForgeConfigSpec.Builder builder) {
         artifactCooldown = builder.comment("Cooldown in ticks of a artifact")
             .defineInRange("artifactCooldown", DEFAULT_ARTIFACT_COOLDOWN, 0, Integer.MAX_VALUE);
         builder.pop();
+
+        builder.push("Misc");
+        explosionScaling = builder.comment("Scaling for entity damage caused by explosion spells in %")
+                .defineInRange("explosionScaling", DEFAULT_EXPLOSION_SCALING, 0, Integer.MAX_VALUE);
+        builder.pop();
     }
 
     @Override
@@ -80,6 +87,11 @@ public int artifactCooldown() {
         return artifactCooldown.get();
     }
 
+    @Override
+    public int explosionScaling() {
+        return explosionScaling.get();
+    }
+
     public static class Client implements HexConfig.ClientConfigAccess {
         private static ForgeConfigSpec.BooleanValue ctrlTogglesOffStrokeOrder;
         private static ForgeConfigSpec.BooleanValue disableInworldScrolling;