[Tutorial] 3. Hooking Keys

Tools

• Terraria Source
• ModClass

Adding the Hook

• Open Player.cs
• Navigate to Keys[] pressedKeys = Main.keyState.GetPressedKeys(); [Line 3003]
• Add ModClass.onKeys(pressedKeys); below it
• Open ModClass.cs
• Add the following declaration using Microsoft.Xna.Framework.Input. (or using Microsoft.XNA.Framework.Input)
• Add the following variable private static Keys[] previousKeys;
• Add the following function public static void onKeys(Keys[] pressedKeys) { previousKeys = pressedKeys; }

Using the Hook

• Change the following example to your needs: if(pressedKeys.Contains(Keys.N) && !previousKeys.Contains(Keys.N)) { //Do something if N was just pressed; previousKeys = pressedKeys; }

Explanation

The previousKeys Array is used to enable "Toggle-Keys". Toggle-Keys are keys that only run their action once even if you hold them for a longer time