Measure text.

examples/window/main.lua

@@ -1,5 +1,7 @@
 local textColor = BLACK
 local textPos = { 192, 200 }
+local imageFont = -1
+local text = "Congrats! You created your first window!"
 
 function init()
 	RL_SetWindowTitle( "First window" )
@@ -7,8 +9,11 @@ end
 
 function process( delta )
 	if RL_IsKeyPressed( KEY_ENTER ) then
+		local textSize = RL_MeasureText( 0, text, 20, 2 )
+		local winSize = RL_GetWindowSize()
+
 		textColor = BLUE
-		textPos = { 230, 230 }
+		textPos = { winSize[1] / 2 - textSize[1] / 2, winSize[2] / 2 - textSize[2] / 2 }
 	end
 
 	if RL_IsKeyPressed( KEY_SPACE ) then
@@ -19,5 +24,5 @@ end
 
 function draw()
 	RL_ClearBackground( RAYWHITE )
-    RL_DrawText( 0, "Congrats! You created your first window!", textPos, 20, 2, textColor )
+    RL_DrawText( 0, text, textPos, 20, 2, textColor )
 end