From d253571b38abfc34f695701f1ba5b16aae932303 Mon Sep 17 00:00:00 2001
From: Alam Ed Arias <alam@srb2.org>
Date: Fri, 6 May 2016 23:26:33 -0400
Subject: [PATCH] Revert "[2.1.15] Restore backwards compatibility for tan()"

This reverts commit 5e50a51386d85dcd6df3e84525c6db57d140660e.
---
 src/lua_mathlib.c | 12 +++---------
 1 file changed, 3 insertions(+), 9 deletions(-)

diff --git a/src/lua_mathlib.c b/src/lua_mathlib.c
index 8ae432fc53..d78cb23a49 100644
--- a/src/lua_mathlib.c
+++ b/src/lua_mathlib.c
@@ -81,15 +81,9 @@ static int lib_finecosine(lua_State *L)
 
 static int lib_finetangent(lua_State *L)
 {
-	// 2.1.15 ONLY HACK: optional boolean argument, only add ANGLE_90 if true
-	boolean newtan = lua_optboolean(L, 2);
-
-	if (newtan)
-		// HACK: add ANGLE_90 to make tan() in Lua start at 0 like it should
-		// use & 4095 instead of & FINEMASK (8191), so it doesn't go out of the array's bounds
-		lua_pushfixed(L, FINETANGENT(((luaL_checkangle(L, 1)+ANGLE_90)>>ANGLETOFINESHIFT) & 4095));
-	else
-		lua_pushfixed(L, FINETANGENT((luaL_checkangle(L, 1)>>ANGLETOFINESHIFT) & 4095));
+	// HACK: add ANGLE_90 to make tan() in Lua start at 0 like it should
+	// use & 4095 instead of & FINEMASK (8191), so it doesn't go out of the array's bounds
+	lua_pushfixed(L, FINETANGENT(((luaL_checkangle(L, 1)+ANGLE_90)>>ANGLETOFINESHIFT) & 4095));
 	return 1;
 }
 
-- 
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