Merge pull request #945 from MihailRis/get-set-raycast-opacity

add rigidbody:is_selectable, :set_selectable

doc/en/entity-properties.md

@@ -67,9 +67,10 @@ If true - the entity blocks the placement of a block that intersects with the en
 
 Default value: *true*.
 
-### *selectable*
+### *selectable* (raycast opacity)
 
 If set to `false` the cursor will ignore the entity, passing the ray.
+Applies to all uses of raycast without the include_non_selectable flag.
 
 ### *sensors*
 

doc/en/scripting/ecs.md

@@ -36,6 +36,11 @@ entity:set_enabled(name: str, enable: bool)
 -- At components initialization -1 is also returned,
 -- since the binding occurs after initialization.
 entity:get_player() -> int or nil
+
+-- Checks the 'selectable' property of an entity (raycast opacity)
+body:is_selectable() -> bool
+-- Sets the value of the 'selectable' property of an entity
+body:set_selectable(flag: bool)
 ```
 
 ## Custom Components

doc/ru/entity-properties.md

@@ -67,9 +67,10 @@
 
 Значение по-умолчанию: *true*.
 
-### Выделяемость - *selectable*
+### Непрозрачность для лучей - *selectable*
 
 При значении в `false` курсор будет игнорировать cущность, пропуская луч далее.
+Распространяется на все использования raycast без флага include_non_selectable.
 
 ### Список сенсоров - *sensors*
 

doc/ru/scripting/ecs.md

@@ -134,6 +134,11 @@ body:set_elasticity(elasticity: number)
 
 -- Возвращает скорость поверхности, на которой находится тело, либо {0,0,0}
 body:get_ground_vel() -> vec3
+
+-- Проверяет свойство 'selectable' у сущности (непрозрачность для лучей)
+body:is_selectable() -> bool
+-- Устанавливает значение свойство 'selectable' у сущности
+body:set_selectable(flag: bool)
 ```
 
 ### Skeleton

res/modules/internal/stdcomp.lua

@@ -39,6 +39,8 @@ local Rigidbody = {__index={
     set_mass=function(self, v) return __rigidbody.set_mass(self.eid, v) end,
     set_elasticity=function(self, v) return __rigidbody.set_elasticity(self.eid, v) end,
     get_ground_vel=function(self) return __rigidbody.get_ground_vel(self.eid) end,
+    is_selectable=function (self) return __rigidbody.is_selectable(self.eid) end,
+    set_selectable=function (self, b) return __rigidbody.set_selectable(self.eid, b) end,
 }}
 
 local function new_Rigidbody(eid)

src/logic/scripting/lua/libs/lib__rigidbody.cpp

@@ -199,6 +199,20 @@ static int l_get_ground_vel(lua::State* L) {
     return 0;
 }
 
+static int l_is_selectable(lua::State* L) {
+    if (auto entity = get_entity(L, 1)) {
+        return lua::pushboolean(L, entity->getRigidbody().hitbox.selectable);
+    }
+    return 0;
+}
+
+static int l_set_selectable(lua::State* L) {
+    if (auto entity = get_entity(L, 1)) {
+        entity->getRigidbody().selectable = lua::toboolean(L, 2);
+    }
+    return 0;
+}
+
 
 const luaL_Reg rigidbodylib[] = {
     {"is_enabled", lua::wrap<l_is_enabled>},
@@ -226,5 +240,7 @@ const luaL_Reg rigidbodylib[] = {
     {"get_elasticity", lua::wrap<l_get_elasticity>},
     {"set_elasticity", lua::wrap<l_set_elasticity>},
     {"get_ground_vel", lua::wrap<l_get_ground_vel>},
+    {"is_selectable", lua::wrap<l_is_selectable>},
+    {"set_selectable", lua::wrap<l_set_selectable>},
     {nullptr, nullptr}
 };

src/objects/Entities.cpp

@@ -175,9 +175,10 @@ std::optional<Entities::RaycastResult> Entities::rayCast(
     glm::ivec3 foundNormal;
 
     for (auto [entity, eid, transform, body] : view.each()) {
+        const auto& hitbox = body.hitbox;
         if (eid.uid == settings.ignoredUid || !body.enabled ||
             (settings.solidEntitiesOnly && !eid.def.solid) ||
-            (!eid.def.selectable && !settings.includeNonSelectable)) {
+            (!hitbox.selectable && !settings.includeNonSelectable)) {
             continue;
         }
         if (settings.entitiesFilter) {
@@ -187,7 +188,6 @@ std::optional<Entities::RaycastResult> Entities::rayCast(
                 continue;
             }
         }
-        const auto& hitbox = body.hitbox;
         glm::ivec3 normal;
         double distance;
         if (ray.intersectAABB(
@@ -330,6 +330,7 @@ void Entities::preparePhysics(float delta) {
                             ? rigidbody.mass
                             : std::numeric_limits<float>::infinity();
         rigidbody.hitbox.elasticity = rigidbody.elasticity;
+        rigidbody.hitbox.selectable = rigidbody.selectable;
         hitboxes.emplace_back(&rigidbody.hitbox);
         if (!eid.def.solid) {
             continue;

src/objects/Rigidbody.cpp

@@ -24,6 +24,7 @@ dv::value Rigidbody::serialize(bool saveVelocity, bool saveBodySettings) const {
         }
         bodymap["mass"] = mass;
         bodymap["elasticity"] = elasticity;
+        bodymap["selectable"] = selectable;
     }
     return bodymap;
 }
@@ -37,6 +38,7 @@ void Rigidbody::deserialize(const dv::value& root) {
     root["damping"].asNumber(hitbox.linearDamping);
     root["mass"].asNumber(mass);
     root["elasticity"].asNumber(elasticity);
+    root["selectable"].asBoolean(selectable);
 }
 
 template <void (*callback)(const Entity&, size_t, entityid_t)>
@@ -55,6 +57,7 @@ void Rigidbody::initialize(
 ) {
     mass = def.mass;
     elasticity = def.elasticity;
+    selectable = def.selectable;
     sensors.resize(def.radialSensors.size() + def.boxSensors.size());
     for (auto& [i, box] : def.boxSensors) {
         SensorParams params {};

src/objects/Rigidbody.hpp

@@ -15,6 +15,7 @@ struct Rigidbody {
     std::vector<Sensor> sensors;
     float mass;
     float elasticity;
+    bool selectable;
 
     dv::value serialize(bool saveVelocity, bool saveBodySettings) const;
     void deserialize(const dv::value& root);

src/physics/Hitbox.hpp

@@ -65,6 +65,7 @@ struct Hitbox {
     float stepHeight = 0.5f;
     float mass = 1.0f;
     float elasticity = 0.0f;
+    bool selectable = true;
     std::string material;
     std::string groundMaterial;
     glm::vec3 groundVelocity {};