diff --git a/src/constants/const.ts b/src/constants/const.ts
new file mode 100644
index 00000000..8aec049e
--- /dev/null
+++ b/src/constants/const.ts
@@ -0,0 +1,5 @@
+export const VIEWPORT_W = 1280;
+export const VIEWPORT_H = 720;
+
+export const ONE_PERCENT_OF_VIEWPORT_W = VIEWPORT_W / 100;
+export const ONE_PERCENT_OF_VIEWPORT_H = VIEWPORT_H / 100;