FOV warp and camera

src/main/java/de/shiewk/bedrockdeathscreen/mixin/MixinCamera.java

@@ -0,0 +1,47 @@
+package de.shiewk.bedrockdeathscreen.mixin;
+
+import de.shiewk.bedrockdeathscreen.client.screen.BedrockDeathScreen;
+import net.minecraft.client.MinecraftClient;
+import net.minecraft.client.render.Camera;
+import net.minecraft.entity.Entity;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.Shadow;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Constant;
+import org.spongepowered.asm.mixin.injection.ModifyConstant;
+import org.spongepowered.asm.mixin.injection.Redirect;
+
+@Mixin(Camera.class)
+public class MixinCamera {
+
+    @Shadow private float lastTickDelta;
+
+    @Redirect(method = "update", at = @At(value = "INVOKE", target = "Lnet/minecraft/entity/Entity;getYaw(F)F"))
+    public float onYawGet(Entity instance, float tickDelta){
+        if (MinecraftClient.getInstance().currentScreen instanceof BedrockDeathScreen bedrockDeathScreen){
+            return bedrockDeathScreen.calcCamYaw();
+        } else {
+            return instance.getYaw(tickDelta);
+        }
+    }
+
+    @Redirect(method = "update", at = @At(value = "INVOKE", target = "Lnet/minecraft/entity/Entity;getPitch(F)F"))
+    public float onPitchGet(Entity instance, float tickDelta){
+        if (MinecraftClient.getInstance().currentScreen instanceof BedrockDeathScreen bedrockDeathScreen){
+            return bedrockDeathScreen.calcCamPitch();
+        } else {
+            return instance.getPitch(tickDelta);
+        }
+    }
+
+    @ModifyConstant(method = "update", constant = @Constant(floatValue = 4.0f))
+    public float onUpdateThirdPerson(float constant){
+        final MinecraftClient client = MinecraftClient.getInstance();
+        if (client.currentScreen instanceof BedrockDeathScreen bedrockDeathScreen){
+            final float delta = client.getTickDelta();
+            return bedrockDeathScreen.calcCameraOffset(delta);
+        } else {
+            return 4.0f;
+        }
+    }
+}