添加载具第三人称防穿模功能，添加调整相机距离的功能

src/main/java/com/atsuishio/superbwarfare/client/ClickHandler.java

@@ -11,6 +11,7 @@ import com.atsuishio.superbwarfare.entity.vehicle.base.CannonEntity;
 import com.atsuishio.superbwarfare.entity.vehicle.base.VehicleEntity;
 import com.atsuishio.superbwarfare.entity.vehicle.base.WeaponVehicleEntity;
 import com.atsuishio.superbwarfare.event.ClientEventHandler;
+import com.atsuishio.superbwarfare.event.ClientMouseHandler;
 import com.atsuishio.superbwarfare.init.*;
 import com.atsuishio.superbwarfare.item.gun.GunItem;
 import com.atsuishio.superbwarfare.network.message.send.*;
@@ -151,6 +152,13 @@ public class ClickHandler {
 
         double scroll = event.getScrollDeltaY();
 
+        // 按下自由视角键时，为具有自由视角功能的载具调整相机距离
+        if (player.getVehicle() instanceof VehicleEntity vehicle && vehicle.allowFreeCam() && player == vehicle.getFirstPassenger() && ModKeyMappings.FREE_CAMERA.isDown()) {
+            ClientMouseHandler.custom3pDistance = Mth.clamp(ClientMouseHandler.custom3pDistance - event.getScrollDeltaY(), -3, 8);
+            event.setCanceled(true);
+            return;
+        }
+
         // 未按下shift时，为有武器的载具切换武器
         if (!Screen.hasShiftDown()
                 && player.getVehicle() instanceof VehicleEntity vehicle

src/main/java/com/atsuishio/superbwarfare/entity/vehicle/A10Entity.java

@@ -6,6 +6,7 @@ import com.atsuishio.superbwarfare.config.server.VehicleConfig;
 import com.atsuishio.superbwarfare.entity.vehicle.base.*;
 import com.atsuishio.superbwarfare.entity.vehicle.damage.DamageModifier;
 import com.atsuishio.superbwarfare.entity.vehicle.weapon.*;
+import com.atsuishio.superbwarfare.event.ClientMouseHandler;
 import com.atsuishio.superbwarfare.init.ModDamageTypes;
 import com.atsuishio.superbwarfare.init.ModItems;
 import com.atsuishio.superbwarfare.init.ModParticleTypes;
@@ -1061,13 +1062,13 @@ public class A10Entity extends ContainerMobileVehicleEntity implements GeoEntity
         if (this.getSeatIndex(player) == 0) {
             Matrix4f transform = getClientVehicleTransform(partialTicks);
 
-
+            Vector4f maxCameraPosition = transformPosition(transform, 0, 4, -14 - (float) ClientMouseHandler.custom3pDistanceLerp);
-            Vector4f worldPosition = transformPosition(transform, 0f, 4, -14);
+            Vec3 finalPos = CameraTool.getMaxZoom(transform, maxCameraPosition);
 
             if (isFirstPerson) {
                 return new Vec3(Mth.lerp(partialTicks, player.xo, player.getX()), Mth.lerp(partialTicks, player.yo + player.getEyeHeight(), player.getEyeY()), Mth.lerp(partialTicks, player.zo, player.getZ()));
             } else {
-                return new Vec3(worldPosition.x, worldPosition.y, worldPosition.z);
+                return finalPos;
             }
         }
         return super.getCameraPosition(partialTicks, player, false, false);

src/main/java/com/atsuishio/superbwarfare/entity/vehicle/Ah6Entity.java

@@ -12,13 +12,11 @@ import com.atsuishio.superbwarfare.entity.vehicle.damage.DamageModifier;
 import com.atsuishio.superbwarfare.entity.vehicle.weapon.HeliRocketWeapon;
 import com.atsuishio.superbwarfare.entity.vehicle.weapon.SmallCannonShellWeapon;
 import com.atsuishio.superbwarfare.entity.vehicle.weapon.VehicleWeapon;
+import com.atsuishio.superbwarfare.event.ClientMouseHandler;
 import com.atsuishio.superbwarfare.init.ModDamageTypes;
 import com.atsuishio.superbwarfare.init.ModItems;
 import com.atsuishio.superbwarfare.init.ModSounds;
-import com.atsuishio.superbwarfare.tools.Ammo;
+import com.atsuishio.superbwarfare.tools.*;
-import com.atsuishio.superbwarfare.tools.CustomExplosion;
-import com.atsuishio.superbwarfare.tools.InventoryTool;
-import com.atsuishio.superbwarfare.tools.ParticleTool;
 import com.mojang.math.Axis;
 import it.unimi.dsi.fastutil.Pair;
 import net.minecraft.core.particles.ParticleTypes;
@@ -676,6 +674,21 @@ public class Ah6Entity extends ContainerMobileVehicleEntity implements GeoEntity
         return seatIndex == 0 ? 0 : original;
     }
 
+    @Override
+    public double getMouseSensitivity() {
+        return 0.15;
+    }
+
+    @Override
+    public double getMouseSpeedX() {
+        return 0.35;
+    }
+
+    @Override
+    public double getMouseSpeedY() {
+        return 0.2;
+    }
+
     @OnlyIn(Dist.CLIENT)
     @Nullable
     public Pair<Quaternionf, Quaternionf> getPassengerRotation(Entity entity, float tickDelta) {
@@ -711,14 +724,13 @@ public class Ah6Entity extends ContainerMobileVehicleEntity implements GeoEntity
     public Vec3 getCameraPosition(float partialTicks, Player player, boolean zoom, boolean isFirstPerson) {
         if (this.getSeatIndex(player) == 0) {
             Matrix4f transform = getClientVehicleTransform(partialTicks);
-
+            Vector4f maxCameraPosition = transformPosition(transform, -2.1f, 1, -10 - (float) ClientMouseHandler.custom3pDistanceLerp);
-
+            Vec3 finalPos = CameraTool.getMaxZoom(transform, maxCameraPosition);
-            Vector4f worldPosition = transformPosition(transform, -2.1f, 1, -10);
 
             if (isFirstPerson) {
                 return new Vec3(Mth.lerp(partialTicks, player.xo, player.getX()), Mth.lerp(partialTicks, player.yo + player.getEyeHeight(), player.getEyeY()), Mth.lerp(partialTicks, player.zo, player.getZ()));
             } else {
-                return new Vec3(worldPosition.x, worldPosition.y, worldPosition.z);
+                return finalPos;
             }
         }
         return super.getCameraPosition(partialTicks, player, false, false);

src/main/java/com/atsuishio/superbwarfare/event/ClientMouseHandler.java

@@ -43,6 +43,9 @@ public class ClientMouseHandler {
     public static double freeCameraPitch = 0;
     public static double freeCameraYaw = 0;
 
+    public static double custom3pDistance = 0;
+    public static double custom3pDistanceLerp = 0;
+
     private static boolean notInGame() {
         Minecraft mc = Minecraft.getInstance();
         if (mc.player == null) return true;
@@ -78,8 +81,15 @@ public class ClientMouseHandler {
         }
 
         if (!notInGame() && player.getVehicle() instanceof VehicleEntity vehicle && player == vehicle.getFirstPassenger()) {
+
+            int y = 1;
+
+            if (vehicle instanceof AirEntity && VehicleControlConfig.INVERT_AIRCRAFT_CONTROL.get()) {
+                y = -1;
+            }
+
             speedX = vehicle.getMouseSensitivity() * (posN.x - posO.x);
-            speedY = vehicle.getMouseSensitivity() * (posN.y - posO.y);
+            speedY = y * vehicle.getMouseSensitivity() * (posN.y - posO.y);
 
             lerpSpeedX = Mth.lerp(vehicle.getMouseSpeedX(), lerpSpeedX, speedX);
             lerpSpeedY = Mth.lerp(vehicle.getMouseSpeedY(), lerpSpeedY, speedY);
@@ -120,10 +130,10 @@ public class ClientMouseHandler {
 
         if (isFreeCam(player)) {
             freeCameraYaw -= 0.4f * times * lerpSpeedX;
-            freeCameraPitch += 0.2f * times * lerpSpeedY;
+            freeCameraPitch += 0.3f * times * lerpSpeedY;
         } else {
-            freeCameraYaw = Mth.lerp(0.075 * event.getPartialTick(), freeCameraYaw, 0);
+            freeCameraYaw = Mth.lerp(0.2 * times, freeCameraYaw, 0);
-            freeCameraPitch = Mth.lerp(0.075 * event.getPartialTick(), freeCameraPitch, 0);
+            freeCameraPitch = Mth.lerp(0.2 * times, freeCameraPitch, 0);
         }
 
         while (freeCameraYaw > 180F) {
@@ -139,10 +149,12 @@ public class ClientMouseHandler {
             freeCameraPitch += 360;
         }
 
-        if (player.getVehicle() instanceof AirEntity) {
+        if (player.getVehicle() instanceof VehicleEntity vehicle && player == vehicle.getFirstPassenger() && vehicle instanceof AirEntity) {
             player.setYRot(player.getVehicle().getYRot());
             player.setYHeadRot(player.getYRot());
         }
+
+        custom3pDistanceLerp = Mth.lerp(times, custom3pDistanceLerp, custom3pDistance);
     }
 
     @SubscribeEvent

src/main/java/com/atsuishio/superbwarfare/tools/CameraTool.java

@@ -0,0 +1,33 @@
+package com.atsuishio.superbwarfare.tools;
+
+import net.minecraft.client.Minecraft;
+import net.minecraft.world.entity.player.Player;
+import net.minecraft.world.level.ClipContext;
+import net.minecraft.world.phys.HitResult;
+import net.minecraft.world.phys.Vec3;
+import org.joml.Matrix4f;
+import org.joml.Vector4f;
+
+public class CameraTool {
+    public static Vec3 getMaxZoom(Matrix4f transform, Vector4f maxCameraPos) {
+        Minecraft mc = Minecraft.getInstance();
+        Player player = mc.player;
+
+        Vector4f vehiclePos = transformPosition(transform, 0, 0, 0);
+        Vec3 maxCameraPosVec3 = new Vec3(maxCameraPos.x, maxCameraPos.y, maxCameraPos.z);
+        Vec3 vehiclePosVec3 = new Vec3(vehiclePos.x, vehiclePos.y, vehiclePos.z);
+        Vec3 toVec = vehiclePosVec3.vectorTo(maxCameraPosVec3);
+
+        if (player != null) {
+            HitResult hitresult = player.level().clip(new ClipContext(vehiclePosVec3, vehiclePosVec3.add(toVec), ClipContext.Block.VISUAL, ClipContext.Fluid.NONE, player));
+            if (hitresult.getType() == HitResult.Type.BLOCK) {
+                return hitresult.getLocation().add(toVec.normalize().scale(-0.25));
+            }
+        }
+        return maxCameraPosVec3;
+    }
+
+    public static Vector4f transformPosition(Matrix4f transform, float x, float y, float z) {
+        return transform.transform(new Vector4f(x, y, z, 1));
+    }
+}