From 1defba8f24d52df5f8f5fd4b4eb33b9021c544c4 Mon Sep 17 00:00:00 2001
From: Josip Miskovic <josipmiskovic@gmail.com>
Date: Thu, 12 Nov 2020 16:58:05 +0100
Subject: [PATCH] Create empty curve with specified number of points

This `lovr.math.newCurve(n)` variant is already described in API
documentation, now it is implemented.
---
 src/api/l_math.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/api/l_math.c b/src/api/l_math.c
index 2d706c45..1df84554 100644
--- a/src/api/l_math.c
+++ b/src/api/l_math.c
@@ -110,6 +110,13 @@ static int l_lovrMathNewCurve(lua_State* L) {
       i += 3 + components;
       lua_pop(L, 3);
     }
+  } else if (top == 1 && lua_type(L, 1) == LUA_TNUMBER) {
+    float point[4] = { 0 };
+    int count = lua_tonumber(L, 1);
+    lovrAssert(count > 0, "Number of curve points must be positive");
+    for (int i = 0; i < count; i++) {
+      lovrCurveAddPoint(curve, point, i);
+    }
   } else {
     int pointIndex = 0;
     for (int i = 1; i <= top;) {