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-rw-r--r--src/script/common/c_converter.cpp22
1 files changed, 22 insertions, 0 deletions
diff --git a/src/script/common/c_converter.cpp b/src/script/common/c_converter.cpp
index b9d6f0494..3c2f75641 100644
--- a/src/script/common/c_converter.cpp
+++ b/src/script/common/c_converter.cpp
@@ -335,6 +335,28 @@ video::SColor read_ARGB8(lua_State *L, int index)
return color;
}
+bool is_color_table(lua_State *L, int index)
+{
+ // Check whole table in case of missing ColorSpec keys:
+ // This check does not remove the checked value from the stack.
+ // Only update the value if we know we have a valid ColorSpec key pair.
+ if (!lua_istable(L, index))
+ return false;
+
+ bool is_color_table = false;
+ lua_getfield(L, index, "r");
+ if (!is_color_table)
+ is_color_table = lua_isnumber(L, -1);
+ lua_getfield(L, index, "g");
+ if (!is_color_table)
+ is_color_table = lua_isnumber(L, -1);
+ lua_getfield(L, index, "b");
+ if (!is_color_table)
+ is_color_table = lua_isnumber(L, -1);
+ lua_pop(L, 3); // b, g, r values
+ return is_color_table;
+}
+
aabb3f read_aabb3f(lua_State *L, int index, f32 scale)
{
aabb3f box;