NTSL Update:

- You can now send signals with signal(freq, code). Added a cooldown to limit spamming.
    - You can now use "elseif" in your scripts to create a chain.
    - You can now use "return" in the global scope to end the script from running.

git-svn-id: http://tgstation13.googlecode.com/svn/trunk@5701 316c924e-a436-60f5-8080-3fe189b3f50e

code/modules/scripting/Interpreter/Interpreter.dm

@@ -223,10 +223,21 @@
 	Checks a condition and runs either the if block or else block.
 */
 		RunIf(node/statement/IfStatement/stmt)
-			if(Eval(stmt.cond))
-				RunBlock(stmt.block)
-			else if(stmt.else_block)
-				RunBlock(stmt.else_block)
+			if(!stmt.skip)
+				if(Eval(stmt.cond))
+					RunBlock(stmt.block)
+					// Loop through the if else chain and tell them to be skipped.
+					var/node/statement/IfStatement/i = stmt.else_if
+					var/fail_safe = 800
+					while(i && fail_safe)
+						fail_safe -= 1
+						i.skip = 1
+						i = i.else_if
+
+				else if(stmt.else_block)
+					RunBlock(stmt.else_block)
+			// We don't need to skip you anymore.
+			stmt.skip = 0
 
 /*
 	Proc: RunWhile