Add support for setting stepheight for entities

doc/lua_api.txt

@@ -1860,6 +1860,7 @@ Object Properties
     is_visible = true,
     makes_footstep_sound = false,
     automatic_rotate = false,
+    stepheight = 0,
 }
 
 Entity definition (register_entity)

src/clientserver.h

@@ -100,6 +100,7 @@ SharedBuffer<u8> makePacket_TOCLIENT_TIME_OF_DAY(u16 time, float time_speed);
 		TOSERVER_BREATH
 		range added to ItemDefinition
 		drowning, leveled and liquid_range added to ContentFeatures
+		stepheight and collideWithObjects added to object properties
 */
 
 #define LATEST_PROTOCOL_VERSION 21

src/content_cao.cpp

@@ -1150,12 +1150,11 @@ public:
 				box.MaxEdge *= BS;
 				collisionMoveResult moveresult;
 				f32 pos_max_d = BS*0.125; // Distance per iteration
-				f32 stepheight = 0;
 				v3f p_pos = m_position;
 				v3f p_velocity = m_velocity;
 				v3f p_acceleration = m_acceleration;
 				moveresult = collisionMoveSimple(env,env->getGameDef(),
-						pos_max_d, box, stepheight, dtime,
+						pos_max_d, box, m_prop.stepheight, dtime,
 						p_pos, p_velocity, p_acceleration,
 						this, m_prop.collideWithObjects);
 				// Apply results

src/content_sao.cpp

@@ -505,14 +505,14 @@ void LuaEntitySAO::step(float dtime, bool send_recommended)
 			box.MaxEdge *= BS;
 			collisionMoveResult moveresult;
 			f32 pos_max_d = BS*0.25; // Distance per iteration
-			f32 stepheight = 0; // Maximum climbable step height
 			v3f p_pos = m_base_position;
 			v3f p_velocity = m_velocity;
 			v3f p_acceleration = m_acceleration;
 			moveresult = collisionMoveSimple(m_env,m_env->getGameDef(),
-					pos_max_d, box, stepheight, dtime,
+					pos_max_d, box, m_prop.stepheight, dtime,
 					p_pos, p_velocity, p_acceleration,
 					this, m_prop.collideWithObjects);
+
 			// Apply results
 			m_base_position = p_pos;
 			m_velocity = p_velocity;

src/object_properties.cpp

@@ -39,7 +39,8 @@ ObjectProperties::ObjectProperties():
 	initial_sprite_basepos(0,0),
 	is_visible(true),
 	makes_footstep_sound(false),
-	automatic_rotate(0)
+	automatic_rotate(0),
+	stepheight(0)
 {
 	textures.push_back("unknown_object.png");
 	colors.push_back(video::SColor(255,255,255,255));
@@ -100,6 +101,7 @@ void ObjectProperties::serialize(std::ostream &os) const
 		writeARGB8(os, colors[i]);
 	}
 	writeU8(os, collideWithObjects);
+	writeF1000(os,stepheight);
 	// Add stuff only at the bottom.
 	// Never remove anything, because we don't want new versions of this
 }
@@ -133,6 +135,7 @@ void ObjectProperties::deSerialize(std::istream &is)
 				colors.push_back(readARGB8(is));
 			}
 			collideWithObjects = readU8(is);
+			stepheight = readF1000(is);
 		}catch(SerializationError &e){}
 	}
 	else

src/object_properties.h

@@ -44,6 +44,7 @@ struct ObjectProperties
 	bool is_visible;
 	bool makes_footstep_sound;
 	float automatic_rotate;
+	f32 stepheight;
 
 
 	ObjectProperties();

src/script/common/c_content.cpp

@@ -188,6 +188,8 @@ void read_object_properties(lua_State *L, int index,
 	getboolfield(L, -1, "is_visible", prop->is_visible);
 	getboolfield(L, -1, "makes_footstep_sound", prop->makes_footstep_sound);
 	getfloatfield(L, -1, "automatic_rotate", prop->automatic_rotate);
+	getfloatfield(L, -1, "stepheight", prop->stepheight);
+	prop->stepheight*=BS;
 }
 
 /******************************************************************************/