使用Molang渲染RPG

src/main/java/com/atsuishio/superbwarfare/client/model/item/CustomGunModel.java

@@ -1,6 +1,7 @@
 package com.atsuishio.superbwarfare.client.model.item;
 
 import com.atsuishio.superbwarfare.client.molang.MolangVariable;
+import com.atsuishio.superbwarfare.data.gun.GunData;
 import com.atsuishio.superbwarfare.item.gun.GunItem;
 import net.minecraft.client.Minecraft;
 import software.bernie.geckolib.animatable.GeoAnimatable;
@@ -9,20 +10,38 @@ import software.bernie.geckolib.loading.math.MathParser;
 import software.bernie.geckolib.loading.math.MolangQueries;
 import software.bernie.geckolib.model.GeoModel;
 
+import java.util.function.DoubleSupplier;
+
 public abstract class CustomGunModel<T extends GunItem & GeoAnimatable> extends GeoModel<T> {
 
     @Override
     public void applyMolangQueries(AnimationState<T> animationState, double animTime) {
         Minecraft mc = Minecraft.getInstance();
 
-        MathParser.setVariable(MolangQueries.LIFE_TIME, () -> animTime / 20d);
+        set(MolangQueries.LIFE_TIME, () -> animTime / 20d);
 
         if (mc.level != null) {
-            MathParser.setVariable(MolangQueries.ACTOR_COUNT, mc.level::getEntityCount);
+            set(MolangQueries.ACTOR_COUNT, mc.level::getEntityCount);
-            MathParser.setVariable(MolangQueries.TIME_OF_DAY, () -> mc.level.getDayTime() / 24000f);
+            set(MolangQueries.TIME_OF_DAY, () -> mc.level.getDayTime() / 24000f);
-            MathParser.setVariable(MolangQueries.MOON_PHASE, mc.level::getMoonPhase);
+            set(MolangQueries.MOON_PHASE, mc.level::getMoonPhase);
         }
 
-        MathParser.setVariable(MolangVariable.SBW_SYSTEM_TIME, System::currentTimeMillis);
+        set(MolangVariable.SBW_SYSTEM_TIME, System::currentTimeMillis);
+
+        // GunData
+
+        var player = mc.player;
+        if (player == null) return;
+
+        var stack = player.getMainHandItem();
+        if (!(stack.getItem() instanceof GunItem)) return;
+
+        var data = GunData.from(stack);
+
+        set(MolangVariable.SBW_IS_EMPTY, () -> data.isEmpty.get() ? 1 : 0);
+    }
+
+    private static void set(String key, DoubleSupplier value) {
+        MathParser.setVariable(key, value);
     }
 }

src/main/java/com/atsuishio/superbwarfare/client/model/item/RpgItemModel.java

@@ -14,9 +14,8 @@ import net.minecraft.world.entity.player.Player;
 import net.minecraft.world.item.ItemStack;
 import software.bernie.geckolib.animation.AnimationState;
 import software.bernie.geckolib.cache.object.GeoBone;
-import software.bernie.geckolib.model.GeoModel;
 
-public class RpgItemModel extends GeoModel<RpgItem> {
+public class RpgItemModel extends CustomGunModel<RpgItem> {
 
     @Override
     public ResourceLocation getAnimationResource(RpgItem animatable) {

src/main/java/com/atsuishio/superbwarfare/client/molang/MolangVariable.java

@@ -8,9 +8,11 @@ import java.util.function.DoubleSupplier;
 public class MolangVariable {
 
     public static final String SBW_SYSTEM_TIME = "query.sbw_system_time";
+    public static final String SBW_IS_EMPTY = "query.sbw_is_empty";
 
     public static void register() {
         register(SBW_SYSTEM_TIME, () -> 0);
+        register(SBW_IS_EMPTY, () -> 0);
     }
 
     private static void register(String name, DoubleSupplier supplier) {

src/main/java/com/atsuishio/superbwarfare/client/renderer/gun/RpgItemRenderer.java

@@ -3,7 +3,6 @@ package com.atsuishio.superbwarfare.client.renderer.gun;
 import com.atsuishio.superbwarfare.client.AnimationHelper;
 import com.atsuishio.superbwarfare.client.model.item.RpgItemModel;
 import com.atsuishio.superbwarfare.client.renderer.CustomGunRenderer;
-import com.atsuishio.superbwarfare.data.gun.GunData;
 import com.atsuishio.superbwarfare.item.gun.GunItem;
 import com.atsuishio.superbwarfare.item.gun.launcher.RpgItem;
 import com.mojang.blaze3d.vertex.PoseStack;
@@ -37,10 +36,6 @@ public class RpgItemRenderer extends CustomGunRenderer<RpgItem> {
         ItemStack itemStack = player.getMainHandItem();
         if (!(itemStack.getItem() instanceof GunItem)) return;
 
-        if (name.equals("Rockets")) {
-            bone.setHidden(GunData.from(itemStack).isEmpty.get());
-        }
-
         AnimationHelper.handleShootFlare(name, stack, itemStack, bone, buffer, packedLightIn, 0, 0, 0.625, 0.7);
 
         if (renderingArms) {

src/main/resources/assets/superbwarfare/animations/rpg.animation.json

@@ -7,7 +7,8 @@
 			"bones": {
 				"Rockets": {
 					"rotation": [0, 0, 0],
-					"position": [0, 0, 0]
+					"position": [0, 0, 0],
+					"scale": "query.sbw_is_empty ? 0 : 1"
 				}
 			}
 		},
@@ -33,7 +34,8 @@
 				},
 				"Rockets": {
 					"rotation": [0, 0, 0],
-					"position": [0, 0, 0]
+					"position": [0, 0, 0],
+					"scale": "query.sbw_is_empty ? 0 : 1"
 				},
 				"camera": {
 					"rotation": {
@@ -68,7 +70,8 @@
 				},
 				"Rockets": {
 					"rotation": [0, 0, 0],
-					"position": [0, 0, 0]
+					"position": [0, 0, 0],
+					"scale": "query.sbw_is_empty ? 0 : 1"
 				},
 				"Lefthand": {
 					"rotation": [-26.58235, 45.45121, -16.52546],
@@ -86,7 +89,12 @@
 			}
 		},
 		"animation.rpg.fire": {
-			"animation_length": 0.1
+			"animation_length": 0.1,
+			"bones": {
+				"Rockets": {
+					"scale": "query.sbw_is_empty ? 0 : 1"
+				}
+			}
 		},
 		"animation.rpg.reload": {
 			"loop": "hold_on_last_frame",