Vanilla hands rework

FPVersionless/src/main/java/dev/tr7zw/firstperson/versionless/config/FirstPersonSettings.java

@@ -14,8 +14,8 @@ public class FirstPersonSettings {
     public int sitXOffset = 0;
 
     public boolean renderStuckFeatures = true;
-    public boolean vanillaHands = false;
-    public boolean doubleHands = false;
+    public VanillaHands vanillaHandsMode = VanillaHands.OFF;
+    public boolean dynamicMode = true;
 
     public Set<String> autoVanillaHands = new HashSet<>(Arrays.asList("antiqueatlas:antique_atlas",
             "twilightforest:filled_magic_map", "twilightforest:filled_maze_map", "twilightforest:filled_ore_map",

FPVersionless/src/main/java/dev/tr7zw/firstperson/versionless/config/VanillaHands.java

@@ -0,0 +1,5 @@
+package dev.tr7zw.firstperson.versionless.config;
+
+public enum VanillaHands {
+    OFF, ALL, ALL_DOUBLE, ITEMS;
+}

src/main/java/dev/tr7zw/firstperson/LogicHandler.java

@@ -3,10 +3,12 @@
 import java.util.HashSet;
 import java.util.Set;
 
+import dev.tr7zw.firstperson.access.PlayerAccess;
 import dev.tr7zw.firstperson.api.ActivationHandler;
 import dev.tr7zw.firstperson.api.FirstPersonAPI;
 import dev.tr7zw.firstperson.versionless.Constants;
 import dev.tr7zw.firstperson.versionless.FirstPersonBase;
+import dev.tr7zw.firstperson.versionless.config.VanillaHands;
 import dev.tr7zw.util.NMSHelper;
 import lombok.Getter;
 import lombok.RequiredArgsConstructor;
@@ -56,6 +58,12 @@ void registerDefaultHandlers() {
         });
     }
 
+    /**
+     * Checks rather the mod should render at all.
+     * 
+     * @param thirdPerson
+     * @return
+     */
     public boolean shouldApplyThirdPerson(boolean thirdPerson) {
         if (!fpm.isEnabled() || thirdPerson) {
             return false;
@@ -68,6 +76,13 @@ public boolean shouldApplyThirdPerson(boolean thirdPerson) {
         return true;
     }
 
+    /**
+     * Calculates the X/Z offset applied to the player model to get it relative to
+     * the vanilla camera position
+     * 
+     * @param entity
+     * @param defValue
+     */
     public void updatePositionOffset(Entity entity, Vec3 defValue) {
         // handle sleeping
         if (entity == client.getCameraEntity() && client.player.isSleeping()) {
@@ -147,18 +162,95 @@ public boolean isCrawlingOrSwimming(Player player) {
     }
 
     public boolean showVanillaHands() {
-        return fpm.getConfig().vanillaHands || autoVanillaHandItems.contains(client.player.getMainHandItem().getItem())
-                || autoVanillaHandItems.contains(client.player.getOffhandItem().getItem())
-                || autoDisableItems.contains(client.player.getMainHandItem().getItem())
-                || autoDisableItems.contains(client.player.getOffhandItem().getItem());
+        return showVanillaHands(client.player);
+    }
+
+    public boolean showVanillaHands(LivingEntity livingEntity) {
+        if (livingEntity instanceof PlayerAccess playerAccess) {
+            return showVanillaHands(playerAccess.getInventory().getSelected(),
+                    playerAccess.getInventory().offhand.get(0));
+        }
+        return false;
     }
 
+    /**
+     * Don't skip the vanilla first person arm rendering
+     * 
+     * @param mainhand
+     * @param offhand
+     * @return
+     */
     public boolean showVanillaHands(ItemStack mainhand, ItemStack offhand) {
-        return fpm.getConfig().vanillaHands || autoVanillaHandItems.contains(mainhand.getItem())
+        return fpm.getConfig().vanillaHandsMode == VanillaHands.ALL
+                || fpm.getConfig().vanillaHandsMode == VanillaHands.ALL_DOUBLE
+                || (fpm.getConfig().vanillaHandsMode == VanillaHands.ITEMS
+                        && (!mainhand.isEmpty() || !offhand.isEmpty()))
+                || autoVanillaHandItems.contains(mainhand.getItem()) || autoVanillaHandItems.contains(offhand.getItem())
+                || autoDisableItems.contains(mainhand.getItem()) || autoDisableItems.contains(offhand.getItem());
+    }
+
+    public boolean hideArmsAndItems() {
+        return hideArmsAndItems(client.player);
+    }
+
+    public boolean hideArmsAndItems(LivingEntity livingEntity) {
+        if (livingEntity instanceof PlayerAccess playerAccess) {
+            return hideArmsAndItems(playerAccess.getInventory().getSelected(),
+                    playerAccess.getInventory().offhand.get(0));
+        }
+        return false;
+    }
+
+    /**
+     * Should the models arms and items not be rendered?
+     * 
+     * @param mainhand
+     * @param offhand
+     * @return
+     */
+    public boolean hideArmsAndItems(ItemStack mainhand, ItemStack offhand) {
+        if (lookingDown()) {
+            return false;
+        }
+        return fpm.getConfig().vanillaHandsMode != VanillaHands.OFF || autoVanillaHandItems.contains(mainhand.getItem())
                 || autoVanillaHandItems.contains(offhand.getItem()) || autoDisableItems.contains(mainhand.getItem())
                 || autoDisableItems.contains(offhand.getItem());
     }
 
+    public boolean dynamicHandsEnabled() {
+        return dynamicHandsEnabled(client.player);
+    }
+
+    public boolean dynamicHandsEnabled(LivingEntity livingEntity) {
+        if (livingEntity instanceof PlayerAccess playerAccess) {
+            return dynamicHandsEnabled(playerAccess.getInventory().getSelected(),
+                    playerAccess.getInventory().offhand.get(0));
+        }
+        return false;
+    }
+
+    /**
+     * True is dynamic hands is enabled and could apply at this moment
+     * 
+     * @param mainhand
+     * @param offhand
+     * @return
+     */
+    public boolean dynamicHandsEnabled(ItemStack mainhand, ItemStack offhand) {
+        return fpm.getConfig().dynamicMode && !(autoVanillaHandItems.contains(mainhand.getItem())
+                || autoVanillaHandItems.contains(offhand.getItem()) || autoDisableItems.contains(mainhand.getItem())
+                || autoDisableItems.contains(offhand.getItem()));
+    }
+
+    /**
+     * Is Dynamic hands enabled and the player looking down?
+     * 
+     * @return
+     */
+    public boolean lookingDown() {
+        return dynamicHandsEnabled() && NMSHelper.getXRot(Minecraft.getInstance().player) > 30;
+    }
+
     public void addAutoVanillaHandsItem(Item item) {
         autoVanillaHandItems.add(item);
     }

src/main/java/dev/tr7zw/firstperson/config/ConfigScreenProvider.java

@@ -5,6 +5,7 @@
 
 import dev.tr7zw.config.CustomConfigScreen;
 import dev.tr7zw.firstperson.FirstPersonModelCore;
+import dev.tr7zw.firstperson.versionless.config.VanillaHands;
 import lombok.experimental.UtilityClass;
 //spotless:off 
 //#if MC >= 11900
@@ -36,10 +37,10 @@ public void initialize() {
                         () -> fpm.getConfig().sitXOffset, i -> fpm.getConfig().sitXOffset = i));
                 options.add(getOnOffOption("text.firstperson.option.firstperson.renderStuckFeatures",
                         () -> fpm.getConfig().renderStuckFeatures, b -> fpm.getConfig().renderStuckFeatures = b));
-                options.add(getOnOffOption("text.firstperson.option.firstperson.vanillaHands",
-                        () -> fpm.getConfig().vanillaHands, b -> fpm.getConfig().vanillaHands = b));
-                options.add(getOnOffOption("text.firstperson.option.firstperson.doubleHands",
-                        () -> fpm.getConfig().doubleHands, b -> fpm.getConfig().doubleHands = b));
+                options.add(getEnumOption("text.firstperson.option.firstperson.vanillaHandMode", VanillaHands.class,
+                        () -> fpm.getConfig().vanillaHandsMode, b -> fpm.getConfig().vanillaHandsMode = b));
+                options.add(getOnOffOption("text.firstperson.option.firstperson.dynamicMode",
+                        () -> fpm.getConfig().dynamicMode, b -> fpm.getConfig().dynamicMode = b));
 
                 // spotless:off
                 //#if MC >= 11900

src/main/java/dev/tr7zw/firstperson/mixins/ArmorFeatureRendererMixin.java

@@ -44,10 +44,19 @@ private void renderArmor(PoseStack matrices, MultiBufferSource vertexConsumers,
                 && FirstPersonModelCore.instance.getLogicHandler().isSwimming(player)) {
             info.cancel();
         }
-        if (equipmentSlot == EquipmentSlot.CHEST && FirstPersonModelCore.instance.isRenderingPlayer()
-                && FirstPersonModelCore.instance.getLogicHandler().showVanillaHands()) {
-            ((ModelPartBase) (Object) bipedEntityModel.leftArm).setHidden();
-            ((ModelPartBase) (Object) bipedEntityModel.rightArm).setHidden();
+        if (equipmentSlot == EquipmentSlot.CHEST && FirstPersonModelCore.instance.isRenderingPlayer()) {
+            if (FirstPersonModelCore.instance.getLogicHandler().hideArmsAndItems()) {
+                ((ModelPartBase) (Object) bipedEntityModel.leftArm).setHidden();
+                ((ModelPartBase) (Object) bipedEntityModel.rightArm).setHidden();
+            } else if (FirstPersonModelCore.instance.getLogicHandler().dynamicHandsEnabled()) {// TODO DYNAMIC HAND
+                if (!livingEntity.getOffhandItem().isEmpty())
+                    ((ModelPartBase) (Object) bipedEntityModel.leftArm).setHidden();
+                if (!livingEntity.getMainHandItem().isEmpty())
+                    ((ModelPartBase) (Object) bipedEntityModel.rightArm).setHidden();
+            } else {
+                ((ModelPartBase) (Object) bipedEntityModel.leftArm).showAgain();
+                ((ModelPartBase) (Object) bipedEntityModel.rightArm).showAgain();
+            }
         } else {
             ((ModelPartBase) (Object) bipedEntityModel.leftArm).showAgain();
             ((ModelPartBase) (Object) bipedEntityModel.rightArm).showAgain();

src/main/java/dev/tr7zw/firstperson/mixins/HeldItemFeatureRendererMixin.java

@@ -39,9 +39,11 @@ private void renderArmWithItem(LivingEntity livingEntity, ItemStack itemStack, I
     	//$$     			HumanoidArm humanoidArm, PoseStack poseStack, MultiBufferSource multiBufferSource, int i, CallbackInfo ci) {
       	//#endif
       	//spotless:on
-        if (livingEntity instanceof LocalPlayer && FirstPersonModelCore.instance.isRenderingPlayer()
-                && FirstPersonModelCore.instance.getLogicHandler().showVanillaHands()) {
-            ci.cancel();
+        if (livingEntity instanceof LocalPlayer && FirstPersonModelCore.instance.isRenderingPlayer()) {
+            if (FirstPersonModelCore.instance.getLogicHandler().hideArmsAndItems(livingEntity)
+                    && !FirstPersonModelCore.instance.getLogicHandler().lookingDown()) {
+                ci.cancel();
+            }
         }
     }
 

src/main/java/dev/tr7zw/firstperson/mixins/HeldItemRendererMixin.java

@@ -9,7 +9,11 @@
 import com.mojang.blaze3d.vertex.PoseStack;
 
 import dev.tr7zw.firstperson.FirstPersonModelCore;
+import dev.tr7zw.firstperson.versionless.config.VanillaHands;
+import dev.tr7zw.util.NMSHelper;
+import net.minecraft.client.Minecraft;
 import net.minecraft.client.player.AbstractClientPlayer;
+import net.minecraft.client.player.LocalPlayer;
 import net.minecraft.client.renderer.ItemInHandRenderer;
 import net.minecraft.client.renderer.MultiBufferSource;
 import net.minecraft.client.renderer.entity.EntityRenderDispatcher;
@@ -27,22 +31,41 @@ public abstract class HeldItemRendererMixin {
 
     @Shadow
     private EntityRenderDispatcher entityRenderDispatcher;
+    @Shadow
+    private float mainHandHeight;
+    @Shadow
+    private float offHandHeight;
+    @Shadow
+    private ItemStack mainHandItem;
+    @Shadow
+    private ItemStack offHandItem;
 
     @Inject(at = @At("HEAD"), method = "renderArmWithItem", cancellable = true)
     public void renderFirstPersonItem(AbstractClientPlayer player, float tickDelta, float pitch, InteractionHand hand,
             float swingProgress, ItemStack item, float equipProgress, PoseStack matrices,
             MultiBufferSource vertexConsumers, int light, CallbackInfo info) {
-        if (!skip()) {
+
+        if (!FirstPersonModelCore.instance.isEnabled()) {
+            return;
+        }
+        if (!FirstPersonModelCore.instance.getLogicHandler().showVanillaHands()) {
+            info.cancel();
+            return;
+        }
+        // filter out vanilla hands with no item
+        if (FirstPersonModelCore.instance.getLogicHandler().dynamicHandsEnabled() && pitch > 35) {
+            // item held too low, hide
             info.cancel();
             return;
         }
-        if (!FirstPersonModelCore.instance.getConfig().doubleHands
+        // double hands
+        if (FirstPersonModelCore.instance.getConfig().vanillaHandsMode != VanillaHands.ALL_DOUBLE
                 || player.getMainHandItem().getItem() == Items.FILLED_MAP
                 // spotless:off
-            //#if MC >= 11700
+                //#if MC >= 11700
                 || player.isScoping()) {
             //#else
-        	//$$|| false) {
+            //$$|| false) {
             //#endif
             //spotless:on
             return;
@@ -60,9 +83,32 @@ public void renderFirstPersonItem(AbstractClientPlayer player, float tickDelta,
     public abstract void renderPlayerArm(PoseStack matrices, MultiBufferSource vertexConsumers, int light,
             float equipProgress, float swingProgress, HumanoidArm arm);
 
-    public boolean skip() {
-        return !FirstPersonModelCore.instance.isEnabled()
-                || FirstPersonModelCore.instance.getLogicHandler().showVanillaHands();
+    /*
+     * public boolean skip() {//TODO NO NEED? return
+     * !FirstPersonModelCore.instance.isEnabled() ||
+     * FirstPersonModelCore.instance.getLogicHandler().showVanillaHands(); }
+     */
+
+    @Inject(at = @At(value = "INVOKE", target = "Lnet/minecraft/client/player/LocalPlayer;getAttackStrengthScale(F)F", shift = At.Shift.BEFORE), method = "tick", cancellable = true)
+    public void tick(CallbackInfo ci) {// TODO DYNAMIC HAND
+        if (FirstPersonModelCore.instance.isEnabled()
+                && FirstPersonModelCore.instance.getLogicHandler().showVanillaHands()
+                && FirstPersonModelCore.instance.getLogicHandler().dynamicHandsEnabled()) {
+            LocalPlayer localPlayer = Minecraft.getInstance().player;
+            float f = NMSHelper.getXRot(localPlayer);
+            if (f > 15) {
+                if (f < 30) {
+                    this.mainHandHeight = 15 / f;
+                    this.offHandHeight = 15 / f;
+                } else {
+                    this.mainHandHeight -= this.mainHandHeight > -0.1f ? 0.15f : 0;
+                    this.offHandHeight -= this.offHandHeight > -0.1f ? 0.15f : 0;
+                }
+                ci.cancel();
+                this.mainHandItem = localPlayer.getMainHandItem();
+                this.offHandItem = localPlayer.getOffhandItem();
+            }
+        }
     }
 
 }