Joint positioning and rotation code, and fix a problem related to their lua API

Attempt to move the animation system to a more correct implementation, rather than using object properties. Incomplete and breaks functionality

doc/lua_api.txt

@@ -1116,6 +1116,7 @@ LuaEntitySAO-only: (no-op for other objects)
 -           select_horiz_by_yawpitch=false)
   ^ Select sprite from spritesheet with optional animation and DM-style
     texture selection based on yaw relative to camera
+- setanimations(frame_start, frame_end, frame_speed, frame_blend)
 - get_entity_name() (DEPRECATED: Will be removed in a future version)
 - get_luaentity()
 Player-only: (no-op for other objects)
@@ -1230,9 +1231,6 @@ Object Properties
     visual = "cube"/"sprite"/"upright_sprite"/"mesh",
     visual_size = {x=1, y=1},
     mesh = "model",
-    animation_frames = {1, 1},
-    animation_speed = 15,
-    animation_blend = 0,
     animation_bone_position = {"", {x=0, y=0, z=0}}, -- bone name followed by position vector
     animation_bone_rotation = {"", {x=0, y=0, z=0}}, -- bone name followed by rotation vector
     textures = {}, -- number of required textures depends on visual

src/content_cao.cpp

@@ -924,7 +924,6 @@ public:
 			m_visuals_expired = false;
 			removeFromScene();
 			addToScene(m_smgr, m_gamedef->tsrc(), m_irr);
-			updateAnimations();
 		}
 
 		if(m_prop.physical){
@@ -1137,22 +1136,34 @@ public:
 		}
 	}
 
-	void updateAnimations()
+	void updateAnimations(int frame_start, int frame_end, float frame_speed, float frame_blend)
 	{
 		if(!m_animated_meshnode)
 			return;
 
-		m_animated_meshnode->setFrameLoop(m_prop.animation_frames.X, m_prop.animation_frames.Y);
-		m_animated_meshnode->setAnimationSpeed(m_prop.animation_speed);
-		m_animated_meshnode->setTransitionTime(m_prop.animation_blend);
+		m_animated_meshnode->setFrameLoop(frame_start, frame_end);
+		m_animated_meshnode->setAnimationSpeed(frame_speed);
+		m_animated_meshnode->setTransitionTime(frame_blend);
 
-		for(std::map<std::string, v3f>::const_iterator ii = m_prop.animation_bone_position.begin(); ii != m_prop.animation_bone_position.end(); ++ii){
-			if((*ii).second.X || (*ii).second.Y || (*ii).second.Z) { }
-			// Bone positioning code will go here
+		if(m_prop.animation_bone_position.size() > 0)
+		{
+			for(std::map<std::string, v3f>::const_iterator ii = m_prop.animation_bone_position.begin(); ii != m_prop.animation_bone_position.end(); ++ii){
+				m_animated_meshnode->setJointMode(irr::scene::EJUOR_CONTROL); // To write positions to the mesh on render
+				std::string bone_name = (*ii).first;
+				v3f bone_pos = (*ii).second;
+				irr::scene::IBoneSceneNode* bone = m_animated_meshnode->getJointNode(bone_name.c_str());
+				bone->setPosition(bone_pos);
+			}
 		}
-		for(std::map<std::string, v3f>::const_iterator ii = m_prop.animation_bone_rotation.begin(); ii != m_prop.animation_bone_rotation.end(); ++ii){
-			if((*ii).second.X || (*ii).second.Y || (*ii).second.Z) { }
-			// Bone rotation code will go here
+		if(m_prop.animation_bone_rotation.size() > 0)
+		{
+			for(std::map<std::string, v3f>::const_iterator ii = m_prop.animation_bone_rotation.begin(); ii != m_prop.animation_bone_rotation.end(); ++ii){
+				m_animated_meshnode->setJointMode(irr::scene::EJUOR_CONTROL); // To write positions to the mesh on render
+				std::string bone_name = (*ii).first;
+				v3f bone_rot = (*ii).second;
+				irr::scene::IBoneSceneNode* bone = m_animated_meshnode->getJointNode(bone_name.c_str());
+				bone->setRotation(bone_rot);
+			}
 		}
 	}
 
@@ -1223,6 +1234,15 @@ public:
 
 			updateTexturePos();
 		}
+		else if(cmd == GENERIC_CMD_SET_ANIMATIONS)
+		{
+			int frame_start = readU16(is);
+			int frame_end = readU16(is);
+			float frame_speed = readF1000(is);
+			float frame_blend = readF1000(is);
+
+			updateAnimations(frame_start, frame_end, frame_speed, frame_blend);
+		}
 		else if(cmd == GENERIC_CMD_PUNCHED)
 		{
 			/*s16 damage =*/ readS16(is);

src/content_sao.cpp

@@ -706,6 +706,14 @@ void LuaEntitySAO::setSprite(v2s16 p, int num_frames, float framelength,
 	m_messages_out.push_back(aom);
 }
 
+void LuaEntitySAO::setAnimations(int frame_start, int frame_end, float frame_speed, float frame_blend)
+{
+	std::string str = gob_cmd_set_animations(frame_start, frame_end, frame_speed, frame_blend);
+	// create message and add to list
+	ActiveObjectMessage aom(getId(), true, str);
+	m_messages_out.push_back(aom);
+}
+
 std::string LuaEntitySAO::getName()
 {
 	return m_init_name;

src/content_sao.h

@@ -73,6 +73,7 @@ public:
 	void setTextureMod(const std::string &mod);
 	void setSprite(v2s16 p, int num_frames, float framelength,
 			bool select_horiz_by_yawpitch);
+	void setAnimations(int frame_start, int frame_end, float frame_speed, float frame_blend);
 	std::string getName();
 private:
 	std::string getPropertyPacket();

src/genericobject.cpp

@@ -92,6 +92,19 @@ std::string gob_cmd_set_sprite(
 	return os.str();
 }
 
+std::string gob_cmd_set_animations(int frame_start, int frame_end, float frame_speed, float frame_blend)
+{
+	std::ostringstream os(std::ios::binary);
+	// command 
+	writeU8(os, GENERIC_CMD_SET_ANIMATIONS);
+	// parameters
+	writeU16(os, frame_start);
+	writeU16(os, frame_end);
+	writeF1000(os, frame_speed);
+	writeF1000(os, frame_blend);
+	return os.str();
+}
+
 std::string gob_cmd_punched(s16 damage, s16 result_hp)
 {
 	std::ostringstream os(std::ios::binary);

src/genericobject.h

@@ -28,8 +28,9 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #define GENERIC_CMD_UPDATE_POSITION 1
 #define GENERIC_CMD_SET_TEXTURE_MOD 2
 #define GENERIC_CMD_SET_SPRITE 3
-#define GENERIC_CMD_PUNCHED 4
-#define GENERIC_CMD_UPDATE_ARMOR_GROUPS 5
+#define GENERIC_CMD_SET_ANIMATIONS 4
+#define GENERIC_CMD_PUNCHED 5
+#define GENERIC_CMD_UPDATE_ARMOR_GROUPS 6
 
 #include "object_properties.h"
 std::string gob_cmd_set_properties(const ObjectProperties &prop);
@@ -54,6 +55,8 @@ std::string gob_cmd_set_sprite(
 	bool select_horiz_by_yawpitch
 );
 
+std::string gob_cmd_set_animations(int frame_start, int frame_end, float frame_speed, float frame_blend);
+
 std::string gob_cmd_punched(s16 damage, s16 result_hp);
 
 #include "itemgroup.h"

src/object_properties.cpp

@@ -32,9 +32,6 @@ ObjectProperties::ObjectProperties():
 	collisionbox(-0.5,-0.5,-0.5, 0.5,0.5,0.5),
 	visual("sprite"),
 	mesh(""),
-	animation_frames(1,1),
-	animation_speed(15),
-	animation_blend(0),
 	visual_size(1,1),
 	spritediv(1,1),
 	initial_sprite_basepos(0,0),
@@ -42,8 +39,8 @@ ObjectProperties::ObjectProperties():
 	makes_footstep_sound(false),
 	automatic_rotate(0)
 {
-	animation_bone_position[""] = v3f(0,0,0);
-	animation_bone_rotation[""] = v3f(0,0,0);
+	// Nothing to do for animation_bone_position
+	// Nothing to do for animation_bone_rotation
 	textures.push_back("unknown_object.png");
 }
 
@@ -56,9 +53,6 @@ std::string ObjectProperties::dump()
 	os<<", collisionbox="<<PP(collisionbox.MinEdge)<<","<<PP(collisionbox.MaxEdge);
 	os<<", visual="<<visual;
 	os<<", mesh="<<mesh;
-	os<<", animation_frames="<<animation_frames.X<<","<<animation_frames.Y;
-	os<<", animation_speed="<<animation_speed;
-	os<<", animation_blend="<<animation_blend;
 	os<<", visual_size="<<PP2(visual_size);
 
 	os<<", animation_bone_position=[";
@@ -99,10 +93,6 @@ void ObjectProperties::serialize(std::ostream &os) const
 	writeV3F1000(os, collisionbox.MaxEdge);
 	os<<serializeString(visual);
 	os<<serializeString(mesh);
-	writeF1000(os, animation_frames.X);
-	writeF1000(os, animation_frames.Y);
-	writeF1000(os, animation_speed);
-	writeF1000(os, animation_blend);
 
 	writeU16(os, animation_bone_position.size());
 	for(std::map<std::string, v3f>::const_iterator ii = animation_bone_position.begin(); ii != animation_bone_position.end(); ++ii){
@@ -140,10 +130,6 @@ void ObjectProperties::deSerialize(std::istream &is)
 	collisionbox.MaxEdge = readV3F1000(is);
 	visual = deSerializeString(is);
 	mesh = deSerializeString(is);
-	animation_frames.X = readF1000(is);
-	animation_frames.Y = readF1000(is);
-	animation_speed = readF1000(is);
-	animation_blend = readF1000(is);
 
 	u32 animation_bone_position_count = readU16(is);
 	for(u32 i=0; i<animation_bone_position_count; i++){

src/object_properties.h

@@ -34,9 +34,6 @@ struct ObjectProperties
 	core::aabbox3d<f32> collisionbox;
 	std::string visual;
 	std::string mesh;
-	core::vector2d<int> animation_frames;
-	float animation_speed;
-	float animation_blend;
 	std::map<std::string, v3f> animation_bone_position;
 	std::map<std::string, v3f> animation_bone_rotation;
 	v2f visual_size;

src/scriptapi.cpp

@@ -944,21 +944,6 @@ static void read_object_properties(lua_State *L, int index,
 		prop->visual_size = read_v2f(L, -1);
 	lua_pop(L, 1);
 
-	lua_getfield(L, -1, "animation_frames");
-	if(lua_istable(L, -1))
-	{
-		lua_rawgeti (L, -1, 1);
-		lua_rawgeti (L, -2, 2);
-		prop->animation_frames.X = lua_tonumber(L, -2);
-		prop->animation_frames.Y = lua_tonumber(L, -1);
-		lua_pop(L, 2);
-	}
-	lua_pop(L, 1);
-
-	getfloatfield(L, -1, "animation_speed", prop->animation_speed);
-
-	getfloatfield(L, -1, "animation_blend", prop->animation_blend);
-
 	lua_getfield(L, -1, "animation_bone_position");
 	if(lua_istable(L, -1))
 	{
@@ -2863,6 +2848,30 @@ private:
 		return 0;
 	}
 
+	// setanimations(self, mod)
+	static int l_setanimations(lua_State *L)
+	{
+		ObjectRef *ref = checkobject(L, 1);
+		LuaEntitySAO *co = getluaobject(ref);
+		if(co == NULL) return 0;
+		// Do it
+		v2s16 p(0,0);
+		int frame_start = 0;
+		if(!lua_isnil(L, 2))
+			frame_start = lua_tonumber(L, 2);
+		int frame_end = 0;
+		if(!lua_isnil(L, 3))
+			frame_end = lua_tonumber(L, 3);
+		float frame_speed = 15;
+		if(!lua_isnil(L, 4))
+			frame_speed = lua_tonumber(L, 4);
+		float frame_blend = 0;
+		if(!lua_isnil(L, 5))
+			frame_blend = lua_tonumber(L, 5);
+		co->setAnimations(frame_start, frame_end, frame_speed, frame_blend);
+		return 0;
+	}
+
 	// DEPRECATED
 	// get_entity_name(self)
 	static int l_get_entity_name(lua_State *L)
@@ -3062,6 +3071,7 @@ const luaL_reg ObjectRef::methods[] = {
 	method(ObjectRef, getyaw),
 	method(ObjectRef, settexturemod),
 	method(ObjectRef, setsprite),
+	method(ObjectRef, setanimations),
 	method(ObjectRef, get_entity_name),
 	method(ObjectRef, get_luaentity),
 	// Player-only