From 26ae913f1aa777b95b01316e7e0f96c09cd500de Mon Sep 17 00:00:00 2001
From: Ludovic 'Archivist' Lagouardette <ludovic@nekoit.xyz>
Date: Wed, 9 Sep 2020 23:26:00 +0200
Subject: [PATCH] fixed some trigonometry shenanigans

---
 include/gp/math/fp_math.hpp | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

diff --git a/include/gp/math/fp_math.hpp b/include/gp/math/fp_math.hpp
index 0275639..7417920 100644
--- a/include/gp/math/fp_math.hpp
+++ b/include/gp/math/fp_math.hpp
@@ -154,9 +154,21 @@ namespace gp{
 
 	// TODO: replace with an actual implementation
 	double cos(double v) {
-		return sin(v+pi<float>/2);
+		return sin(v+pi<double>/2);
 	}
 
+	// TODO: replace with an actual implementation
+	float tan(float v) {
+		return sin(v)/cos(v);
+	}
+
+	// TODO: replace with an actual implementation
+	double tan(double v) {
+		return sin(v)/cos(v);
+	}
+
+
+
 	template<size_t cycles = 5>
 	float isqrt(float v) {
 		int32_t i;