actually add vendor folder

vendor/raylib-cpp/examples/multiple/Player.cpp

@@ -0,0 +1,31 @@
+#include "Player.hpp"
+#include "raylib-cpp.hpp"
+
+Player::Player() {
+    position = Rectangle{
+        GetScreenWidth() / 2.0f - 50,
+        GetScreenHeight() / 2.0f - 50,
+        100,
+        100
+    };
+    speed = 3;
+}
+
+void Player::Draw() {
+    position.Draw(RED);
+}
+
+void Player::Update() {
+    if (IsKeyDown(KEY_UP)) {
+        position.y -= speed;
+    }
+    if (IsKeyDown(KEY_DOWN)) {
+        position.y += speed;
+    }
+    if (IsKeyDown(KEY_RIGHT)) {
+        position.x += speed;
+    }
+    if (IsKeyDown(KEY_LEFT)) {
+        position.x -= speed;
+    }
+}