Update README.md

README.md

@@ -1 +1,83 @@
 # Slang
+Slang, which stands for ***S****tupid  **Lang**uage* is a custom programming language I made because I don't like c++ very much (Slang's interpreter is written in c++ though). Slang scripts have the file extension .slg. The base syntax and formatting I would say is quite similar to C#, but differs as task complexity increases. It has support for graphics using SDL2, and by default is not enabled. Here is some example code.
+```c#
+// Comments are indicated by two forward slashes
+// They can only be on their own line
+//    int j = 4 // <- This is invalid comment placement
+
+// All programs start with a main function
+func Main()
+{
+    int i = 0
+    string s = "r"
+    
+    i += 2
+    i -= 1
+    i /= 3
+    i *= 2
+    
+    while i < 10
+    {
+        i += 1
+    }
+    
+    if s == "r"
+    {
+        print s + " is r"
+    }
+    
+    int functionNumber = ExampleFunction("A", s)
+    ExampleFunction(1, 3)
+    
+    GlobalFunction()
+}
+
+// Declare new function with 'func', then it's name, and the names of any input variables.
+// The input variables don't need type, as those are automatic. Also, they don't need to
+/// be assigned at all on execute and can be left blank
+func ExampleFunction(inputA, inputB)
+{
+    print "In A is: " + inputA
+    print "In B is: " + inputB
+    
+    // Return a value to the valling location
+    return 4
+}
+
+func GlobalFunction()
+{
+    // Create variables that can be accessed from anywhere (ex. in Main or ExampleFunction) with the 'global' keyword before type
+    global int x = 12
+    global string y = "Y String"
+}
+```
+Here is how to use graphics:
+```c#
+func Main()
+{
+    int screenWidth = 500
+    int screenHeight = 500
+    CPP.Graphics.Init("Title of window", screenWidth, screenHeight)
+    // After graphics are initialized, the main function will not finish.
+    // Instead, Start() will be called a single time, then Update() every frame after that.
+}
+
+// Runs once at start of graphics initialization
+func Start()
+{
+    // Vec2 are initialized using function 'NVec2(x, y)'
+    Vec2 position = NVec2(250, 250)
+    Vec2 scale = NVec2(20, 20)
+    float rotation = 0
+
+    // Sprite object, stores (and loads from file) the texture, location, scale, and rotation
+    global Sprite exampleSprite = CPP.Graphics.Sprite("./square.png", position, scale, rotation)
+}
+
+// Executes each frame
+func Update()
+{
+    // Draws the image created in Start(). This is usually at the end of update.
+    CPP.Graphics.Draw(exampleSprite)   
+}
+```