print("The local player used an item!")
print("pointed_thing :" .. dump(pointed_thing))
print("item = " .. itemstack:get_name())
+
+ local pos = vector.add(core.localplayer:get_pos(), core.camera:get_offset())
+ local pos2 = vector.add(pos, vector.multiply(core.camera:get_look_dir(), 100))
+
+ local rc = core.raycast(pos, pos2)
+ local i = rc:next()
+ print("[PREVIEW] raycast next: " .. dump(i))
+ if i then
+ print("[PREVIEW] line of sight: " .. (core.line_of_sight(pos, i.above) and "yes" or "no"))
+
+ local n1 = core.find_nodes_in_area(pos, i.under, {"default:stone"})
+ local n2 = core.find_nodes_in_area_under_air(pos, i.under, {"default:stone"})
+ print(("[PREVIEW] found %s nodes, %s nodes under air"):format(
+ n1 and #n1 or "?", n2 and #n2 or "?"))
+ end
+
return false
end)
print("[PREVIEW] Damage taken " .. hp)
end)
--- This is an example function to ensure it's working properly, should be removed before merge
-core.register_globalstep(function(dtime)
- -- print("[PREVIEW] globalstep " .. dtime)
-end)
-
-- This is an example function to ensure it's working properly, should be removed before merge
core.register_chatcommand("dump", {
func = function(param)
* Returns the node at the given position as table in the format
`{name="node_name", param1=0, param2=0}`, returns `nil`
for unloaded areas or flavor limited areas.
+* `minetest.get_node_light(pos, timeofday)`
+ * Gets the light value at the given position. Note that the light value
+ "inside" the node at the given position is returned, so you usually want
+ to get the light value of a neighbor.
+ * `pos`: The position where to measure the light.
+ * `timeofday`: `nil` for current time, `0` for night, `0.5` for day
+ * Returns a number between `0` and `15` or `nil`
* `minetest.find_node_near(pos, radius, nodenames, [search_center])`: returns pos or `nil`
* `radius`: using a maximum metric
* `nodenames`: e.g. `{"ignore", "group:tree"}` or `"default:dirt"`
* `search_center` is an optional boolean (default: `false`)
If true `pos` is also checked for the nodes
+* `minetest.find_nodes_in_area(pos1, pos2, nodenames)`: returns a list of
+ positions.
+ * `nodenames`: e.g. `{"ignore", "group:tree"}` or `"default:dirt"`
+ * First return value: Table with all node positions
+ * Second return value: Table with the count of each node with the node name
+ as index.
+ * Area volume is limited to 4,096,000 nodes
+* `minetest.find_nodes_in_area_under_air(pos1, pos2, nodenames)`: returns a
+ list of positions.
+ * `nodenames`: e.g. `{"ignore", "group:tree"}` or `"default:dirt"`
+ * Return value: Table with all node positions with a node air above
+ * Area volume is limited to 4,096,000 nodes
+* `minetest.line_of_sight(pos1, pos2)`: returns `boolean, pos`
+ * Checks if there is anything other than air between pos1 and pos2.
+ * Returns false if something is blocking the sight.
+ * Returns the position of the blocking node when `false`
+ * `pos1`: First position
+ * `pos2`: Second position
+* `minetest.raycast(pos1, pos2, objects, liquids)`: returns `Raycast`
+ * Creates a `Raycast` object.
+ * `pos1`: start of the ray
+ * `pos2`: end of the ray
+ * `objects`: if false, only nodes will be returned. Default is `true`.
+ * `liquids`: if false, liquid nodes won't be returned. Default is `false`.
+
+* `minetest.find_nodes_with_meta(pos1, pos2)`
+ * Get a table of positions of nodes that have metadata within a region
+ {pos1, pos2}.
* `minetest.get_meta(pos)`
* Get a `NodeMetaRef` at that position
* `minetest.get_node_level(pos)`
* `fields`: key-value storage
* `inventory`: `{list1 = {}, ...}}`
+### `Raycast`
+
+A raycast on the map. It works with selection boxes.
+Can be used as an iterator in a for loop as:
+
+ local ray = Raycast(...)
+ for pointed_thing in ray do
+ ...
+ end
+
+The map is loaded as the ray advances. If the map is modified after the
+`Raycast` is created, the changes may or may not have an effect on the object.
+
+It can be created via `Raycast(pos1, pos2, objects, liquids)` or
+`minetest.raycast(pos1, pos2, objects, liquids)` where:
+
+* `pos1`: start of the ray
+* `pos2`: end of the ray
+* `objects`: if false, only nodes will be returned. Default is true.
+* `liquids`: if false, liquid nodes won't be returned. Default is false.
+
+#### Methods
+
+* `next()`: returns a `pointed_thing` with exact pointing location
+ * Returns the next thing pointed by the ray or nil.
+
-----------------
### Definitions
* `minetest.get_node_def(nodename)`
return std::min<int>(radius, m_csm_restriction_noderange - distance);
}
+v3s16 Client::CSMClampPos(v3s16 pos)
+{
+ if (!checkCSMRestrictionFlag(CSMRestrictionFlags::CSM_RF_LOOKUP_NODES))
+ return pos;
+ v3s16 ppos = floatToInt(m_env.getLocalPlayer()->getPosition(), BS);
+ const int range = m_csm_restriction_noderange;
+ return v3s16(
+ core::clamp<int>(pos.X, (int)ppos.X - range, (int)ppos.X + range),
+ core::clamp<int>(pos.Y, (int)ppos.Y - range, (int)ppos.Y + range),
+ core::clamp<int>(pos.Z, (int)ppos.Z - range, (int)ppos.Z + range)
+ );
+}
+
void Client::addNode(v3s16 p, MapNode n, bool remove_metadata)
{
//TimeTaker timer1("Client::addNode()");
// helpers to enforce CSM restrictions
MapNode CSMGetNode(v3s16 p, bool *is_valid_position);
int CSMClampRadius(v3s16 pos, int radius);
+ v3s16 CSMClampPos(v3s16 pos);
void addNode(v3s16 p, MapNode n, bool remove_metadata = true);
protected:
friend class LuaItemStack;
friend class ModApiItemMod;
- friend class LuaRaycast;
bool getItemCallback(const char *name, const char *callbackname, const v3s16 *p = nullptr);
/*!
int LuaRaycast::l_next(lua_State *L)
{
MAP_LOCK_REQUIRED;
-
- ScriptApiItem *script = getScriptApi<ScriptApiItem>(L);
GET_ENV_PTR;
+ bool csm = false;
+#ifndef SERVER
+ csm = getClient(L) != nullptr;
+#endif
+
LuaRaycast *o = checkobject(L, 1);
PointedThing pointed;
env->continueRaycast(&o->state, &pointed);
if (pointed.type == POINTEDTHING_NOTHING)
lua_pushnil(L);
else
- script->pushPointedThing(pointed, true);
+ push_pointed_thing(L, pointed, csm, true);
return 1;
}
{
GET_ENV_PTR;
- const NodeDefManager *ndef = getServer(L)->ndef();
v3s16 minp = read_v3s16(L, 1);
v3s16 maxp = read_v3s16(L, 2);
sortBoxVerticies(minp, maxp);
+#ifndef SERVER
+ const NodeDefManager *ndef = getClient(L) ? getClient(L)->ndef() : getServer(L)->ndef();
+ if (getClient(L)) {
+ minp = getClient(L)->CSMClampPos(minp);
+ maxp = getClient(L)->CSMClampPos(maxp);
+ }
+#else
+ const NodeDefManager *ndef = getServer(L)->ndef();
+#endif
+
v3s16 cube = maxp - minp + 1;
// Volume limit equal to 8 default mapchunks, (80 * 2) ^ 3 = 4,096,000
if ((u64)cube.X * (u64)cube.Y * (u64)cube.Z > 4096000) {
GET_ENV_PTR;
- const NodeDefManager *ndef = getServer(L)->ndef();
v3s16 minp = read_v3s16(L, 1);
v3s16 maxp = read_v3s16(L, 2);
sortBoxVerticies(minp, maxp);
+#ifndef SERVER
+ const NodeDefManager *ndef = getClient(L) ? getClient(L)->ndef() : getServer(L)->ndef();
+ if (getClient(L)) {
+ minp = getClient(L)->CSMClampPos(minp);
+ maxp = getClient(L)->CSMClampPos(maxp);
+ }
+#else
+ const NodeDefManager *ndef = getServer(L)->ndef();
+#endif
+
v3s16 cube = maxp - minp + 1;
// Volume limit equal to 8 default mapchunks, (80 * 2) ^ 3 = 4,096,000
if ((u64)cube.X * (u64)cube.Y * (u64)cube.Z > 4096000) {
void ModApiEnvMod::InitializeClient(lua_State *L, int top)
{
+ API_FCT(get_node_light);
API_FCT(get_timeofday);
API_FCT(get_node_max_level);
API_FCT(get_node_level);
+ API_FCT(find_nodes_with_meta);
API_FCT(find_node_near);
+ API_FCT(find_nodes_in_area);
+ API_FCT(find_nodes_in_area_under_air);
+ API_FCT(line_of_sight);
+ API_FCT(raycast);
}
{
LuaItemStack::Register(L);
ItemStackMetaRef::Register(L);
+ LuaRaycast::Register(L);
StorageRef::Register(L);
LuaMinimap::Register(L);
NodeMetaRef::RegisterClient(L);
projects / oweals / minetest.git / commitdiff