Fix Particles In Front-Facing View

launcher/src/client/available-feature-flags

@@ -32,7 +32,7 @@ TRUE Disable V-Sync
 TRUE Fix Options Screen
 TRUE Force Touch GUI Inventory
 TRUE Fix Pause Menu
-TRUE Improved Title Screen Background
+TRUE Add Title Screen Background
 TRUE Force Touch GUI Button Behavior
 TRUE Improved Button Hover Behavior
 TRUE Implement Create World Dialog

mods/src/input/toggle.c

@@ -42,32 +42,58 @@ static void _handle_toggle_options(unsigned char *minecraft) {
 }
 
 // Font-Facing View
+static void invert_rotation(unsigned char *entity) {
+    if (entity != NULL) {
+        *(float *) (entity + Entity_yaw_property_offset) = 180.f + (*(float *) (entity + Entity_yaw_property_offset));
+        *(float *) (entity + Entity_old_yaw_property_offset) = 180.f + (*(float *) (entity + Entity_old_yaw_property_offset));
+        *(float *) (entity + Entity_pitch_property_offset) = -(*(float *) (entity + Entity_pitch_property_offset));
+        *(float *) (entity + Entity_old_pitch_property_offset) = -(*(float *) (entity + Entity_old_pitch_property_offset));
+    }
+}
+static void revert_rotation(unsigned char *entity) {
+    if (entity != NULL) {
+        *(float *) (entity + Entity_yaw_property_offset) = -180.f + (*(float *) (entity + Entity_yaw_property_offset));
+        *(float *) (entity + Entity_old_yaw_property_offset) = -180.f + (*(float *) (entity + Entity_old_yaw_property_offset));
+        *(float *) (entity + Entity_pitch_property_offset) = -(*(float *) (entity + Entity_pitch_property_offset));
+        *(float *) (entity + Entity_old_pitch_property_offset) = -(*(float *) (entity + Entity_old_pitch_property_offset));
+    }
+}
+static int is_front_facing = 0;
+static unsigned char *stored_player = NULL;
 static void GameRenderer_setupCamera_injection(unsigned char *game_renderer, float param_1, int param_2) {
     // Get Objects
     unsigned char *minecraft = *(unsigned char **) (game_renderer + GameRenderer_minecraft_property_offset);
-    unsigned char *player = *(unsigned char **) (minecraft + Minecraft_player_property_offset);
+    stored_player = *(unsigned char **) (minecraft + Minecraft_player_property_offset);
 
     // Check If In Third-Person
     unsigned char *options = minecraft + Minecraft_options_property_offset;
-    int is_font_facing = (*(options + Options_third_person_property_offset) == 2);
+    is_front_facing = (*(options + Options_third_person_property_offset) == 2);
 
     // Invert Rotation
-    if (is_font_facing && player != NULL) {
+    if (is_front_facing) {
-        *(float *) (player + Entity_yaw_property_offset) = 180.f + (*(float *) (player + Entity_yaw_property_offset));
+        invert_rotation(stored_player);
-        *(float *) (player + Entity_old_yaw_property_offset) = 180.f + (*(float *) (player + Entity_old_yaw_property_offset));
-        *(float *) (player + Entity_pitch_property_offset) = -(*(float *) (player + Entity_pitch_property_offset));
-        *(float *) (player + Entity_old_pitch_property_offset) = -(*(float *) (player + Entity_old_pitch_property_offset));
     }
 
     // Call Original Method
     (*GameRenderer_setupCamera)(game_renderer, param_1, param_2);
 
     // Revert
-    if (is_font_facing && player != NULL) {
+    if (is_front_facing) {
-        *(float *) (player + Entity_yaw_property_offset) = -180.f + (*(float *) (player + Entity_yaw_property_offset));
+        revert_rotation(stored_player);
-        *(float *) (player + Entity_old_yaw_property_offset) = -180.f + (*(float *) (player + Entity_old_yaw_property_offset));
+    }
-        *(float *) (player + Entity_pitch_property_offset) = -(*(float *) (player + Entity_pitch_property_offset));
+}
-        *(float *) (player + Entity_old_pitch_property_offset) = -(*(float *) (player + Entity_old_pitch_property_offset));
+static void ParticleEngine_render_injection(unsigned char *particle_engine, unsigned char *entity, float param_2) {
+    // Invert Rotation
+    if (is_front_facing && stored_player == entity) {
+        invert_rotation(stored_player);
+    }
+
+    // Call Original Method
+    (*ParticleEngine_render)(particle_engine, entity, param_2);
+
+    // Revert
+    if (is_front_facing && stored_player == entity) {
+        revert_rotation(stored_player);
     }
 }
 
@@ -79,5 +105,6 @@ void _init_toggle() {
     // Font-Facing View
     if (enable_toggles) {
         overwrite_calls((void *) GameRenderer_setupCamera, (void *) GameRenderer_setupCamera_injection);
+        overwrite_calls((void *) ParticleEngine_render, (void *) ParticleEngine_render_injection);
     }
 }

mods/src/title-screen/title-screen.cpp

@@ -45,7 +45,7 @@ static void StartMenuScreen_buttonClicked_injection(unsigned char *screen, unsig
 // Init
 void init_title_screen() {
     // Improved Title Screen Background
-    if (feature_has("Improved Title Screen Background", server_disabled)) {
+    if (feature_has("Add Title Screen Background", server_disabled)) {
         // Switch Background
         overwrite_call((void *) 0x39528, (void *) StartMenuScreen_render_Screen_renderBackground_injection);
         overwrite_call((void *) 0x3dee0, (void *) StartMenuScreen_render_Screen_renderBackground_injection);

symbols/include/symbols/minecraft.h

@@ -226,6 +226,11 @@ static GameRenderer_setupCamera_t GameRenderer_setupCamera = (GameRenderer_setup
 
 static uint32_t GameRenderer_minecraft_property_offset = 0x4; // Minecraft *
 
+// ParticleEngine
+
+typedef void (*ParticleEngine_render_t)(unsigned char *particle_engine, unsigned char *entity, float param_2);
+static ParticleEngine_render_t ParticleEngine_render = (ParticleEngine_render_t) 0x43060;
+
 // Mouse
 
 typedef int (*Mouse_get_t)();