Stop Doors And Trapdoors Closing When Updated

docs/CHANGELOG.md

@@ -68,6 +68,7 @@
     * `Fix Eggs Spawning Abnormally Healthy Chickens` (Enabled By Default)
     * `Correctly Close API Sockets` (Enabled By Default)
     * `Optimized API Sockets` (Enabled By Default)
+    * `Stop Doors And Trapdoors Closing When Updated` (Disabled By Default)
   * Existing Functionality (All Enabled By Default)
     * `Fix Screen Rendering When Hiding HUD`
     * `Sanitize Usernames`

libreborn/src/util/env/flags/available-feature-flags

@@ -160,3 +160,4 @@ CATEGORY Miscellaneous
     TRUE Add Camera Functionality
     TRUE Update Default Options
     TRUE Remove Chest Placement Restrictions
+    FALSE Stop Doors And Trapdoors Closing When Updated

mods/src/misc/misc.cpp

@@ -698,6 +698,14 @@ void init_misc() {
         overwrite_call((void *) 0x7de0c, Chicken_moveTo, ThrownEgg_onHit_Chicken_moveTo_injection);
     }
 
+    // Stop Doors And Trapdoors Closing When Updated
+    if (feature_has("Stop Doors And Trapdoors Closing When Updated", server_disabled)) {
+        // Patch out the `setOpen` call for doors and trap doors in neighborChanged
+        unsigned char nop_patch[4] = {0x00, 0xf0, 0x20, 0xe3}; // "nop"
+        patch((void *) 0xbe1a0, nop_patch); // door
+        patch((void *) 0xcf818, nop_patch); // trapdoor
+    }
+
     // Disable overwrite_calls() After Minecraft::init
     misc_run_on_init([](__attribute__((unused)) Minecraft *minecraft) {
         thunk_enabler = [](__attribute__((unused)) void *a, __attribute__((unused)) void *b) -> void * {

symbols/src/entity/Throwable.def

@@ -6,6 +6,10 @@ vtable-size 0x13c;
 
 constructor (Level *level, Entity *thrower) = 0x8ccf0;
 
+virtual-method float getThrowPower() = 0x12c;
+virtual-method float getThrowUpAngleOffset() = 0x130;
+virtual-method float getGravity() = 0x134;
 virtual-method void onHit(HitResult *res) = 0x138;
 
 property int thrower_id = 0xd8;
+property int life = 0xdc;