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Improve the error message when bad values are given to love.graphics.line. Resolves issue #1345.

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--HG--
branch : minor
This commit is contained in:
Alex Szpakowski
2017-09-24 16:19:39 -03:00
parent 844900db39
commit bdf961e174
1 changed files with 8 additions and 4 deletions
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src/modules/graphics/wrap_Graphics.cpp
+8 -4
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@@ -2434,17 +2434,21 @@ int w_points(lua_State *L)
int w_line(lua_State *L)
{
int args = lua_gettop(L);
int arg1type = lua_type(L, 1);
bool is_table = false;
if (args == 1 && lua_istable(L, 1))
if (args == 1 && arg1type == LUA_TTABLE)
{
args = (int) luax_objlen(L, 1);
is_table = true;
}
if (args % 2 != 0)
return luaL_error(L, "Number of vertex components must be a multiple of two");
if (arg1type != LUA_TTABLE && arg1type != LUA_TNUMBER)
return luax_typerror(L, 1, "table or number");
else if (args % 2 != 0)
return luaL_error(L, "Number of vertex components must be a multiple of two.");
else if (args < 4)
return luaL_error(L, "Need at least two vertices to draw a line");
return luaL_error(L, "Need at least two vertices to draw a line.");
int numvertices = args / 2;