diff --git a/JacksEscape.vcxproj b/JacksEscape.vcxproj
index 7ca42be..6716c5d 100644
--- a/JacksEscape.vcxproj
+++ b/JacksEscape.vcxproj
@@ -142,6 +142,7 @@
     <ClInclude Include="util\assert.h" />
     <ClInclude Include="util\minmax.h" />
     <ClInclude Include="util\queue.h" />
+    <ClInclude Include="util\rand.h" />
     <ClInclude Include="util\tree.h" />
     <ClInclude Include="util\tree_internal.h" />
     <ClInclude Include="util\vector.h" />
@@ -163,6 +164,7 @@
     <ClCompile Include="render_util.cpp" />
     <ClCompile Include="types.c" />
     <ClCompile Include="util\queue.c" />
+    <ClCompile Include="util\rand.c" />
     <ClCompile Include="util\tree.c" />
     <ClCompile Include="util\vector.c" />
   </ItemGroup>
diff --git a/JacksEscape.vcxproj.filters b/JacksEscape.vcxproj.filters
index 49e2e00..d4fcbf9 100644
--- a/JacksEscape.vcxproj.filters
+++ b/JacksEscape.vcxproj.filters
@@ -66,6 +66,9 @@
     <ClInclude Include="types.h">
       <Filter>头文件</Filter>
     </ClInclude>
+    <ClInclude Include="util\rand.h">
+      <Filter>Util</Filter>
+    </ClInclude>
   </ItemGroup>
   <ItemGroup>
     <ClCompile Include="util\queue.c">
@@ -122,5 +125,8 @@
     <ClCompile Include="render_util.cpp">
       <Filter>源文件</Filter>
     </ClCompile>
+    <ClCompile Include="util\rand.c">
+      <Filter>Util</Filter>
+    </ClCompile>
   </ItemGroup>
 </Project>
\ No newline at end of file
diff --git a/app_debug.c b/app_debug.c
index 0b4e6b7..d8683ae 100644
--- a/app_debug.c
+++ b/app_debug.c
@@ -11,7 +11,8 @@
 
 void app_DebugText(App *app, vector_Vector *vec_string) {
 	vector_Clear(vec_string);
-	char buf[256] = {};
+	char buf[256];
+	memset(buf, 0, sizeof(0));
 
 	Component_Player *player = app->player->player;
 	if (!player) {
diff --git a/player.c b/player.c
index 129f294..17273eb 100644
--- a/player.c
+++ b/player.c
@@ -67,7 +67,7 @@ void player_Advance(System_Player *sys, Duration deltaTime) {
 
 	// Particles
 	static Duration  emitCooldown = {.microseconds = 150000};
-	static TimePoint lastEmit     = {};
+	static TimePoint lastEmit     = {.microseconds = 0};
 	if (time_Since(lastEmit).microseconds > emitCooldown.microseconds) {
 		lastEmit    = time_Now();
 		Vec2 to_pos = vec2_Add(p->super->position->position, vec2(0, -p->super->hitbox->box.size.y));
@@ -79,7 +79,7 @@ void player_Advance(System_Player *sys, Duration deltaTime) {
 	}
 	// Particles when dashing
 	if (time_Since(p->lastDash).microseconds < dashLength.microseconds && dabs(p->super->position->velocity.x) > EPS) {
-		static TimePoint lastDashEmit = {};
+		static TimePoint lastDashEmit = {.microseconds = 0};
 		static Duration  cooldown     = {.microseconds = 8000};
 		if (time_Since(lastDashEmit).microseconds > cooldown.microseconds) {
 			lastDashEmit = time_Now();