Line_of_sight: Improve using VoxelLineIterator

This commit rewrites line_of_sight with VoxelLineIterator.
Stepsize is no longer needed, the results will be always accurate.

1 files changed, 3 insertions, 8 deletions

diff --git a/src/script/lua_api/l_env.cpp b/src/script/lua_api/l_env.cpp
index 870eeb1ae..237d14ab3 100644
--- a/src/script/lua_api/l_env.cpp
+++ b/src/script/lua_api/l_env.cpp
@@ -966,24 +966,19 @@ int ModApiEnvMod::l_clear_objects(lua_State *L)
 	return 0;
 }
 
-// line_of_sight(pos1, pos2, stepsize) -> true/false, pos
+// line_of_sight(pos1, pos2) -> true/false, pos
 int ModApiEnvMod::l_line_of_sight(lua_State *L)
 {
-	float stepsize = 1.0;
-
 	GET_ENV_PTR;
 
 	// read position 1 from lua
 	v3f pos1 = checkFloatPos(L, 1);
 	// read position 2 from lua
 	v3f pos2 = checkFloatPos(L, 2);
-	//read step size from lua
-	if (lua_isnumber(L, 3)) {
-		stepsize = lua_tonumber(L, 3);
-	}
 
 	v3s16 p;
-	bool success = env->line_of_sight(pos1, pos2, stepsize, &p);
+
+	bool success = env->line_of_sight(pos1, pos2, &p);
 	lua_pushboolean(L, success);
 	if (!success) {
 		push_v3s16(L, p);