Merge branch 'object_object_collision' into sapier_experimental

data/mods/default/init.lua

@@ -1302,7 +1302,7 @@ minetest.register_node("default:rail", {
 	walkable = false,
 	selection_box = {
 		type = "fixed",
-		--fixed = <default>
+		fixed = {-1/2, -1/2, -1/2, 1/2, -1/2+1/16, 1/2},
 	},
 	material = minetest.digprop_dirtlike(0.75),
 })

src/activeobject.h

@@ -62,7 +62,6 @@ public:
 
 	virtual u8 getType() const = 0;
 
-	virtual aabb3f* getCollisionBox() = 0;
 protected:
 	u16 m_id; // 0 is invalid, "no id"
 };

src/collidableobject.h

@@ -0,0 +1,36 @@
+/*
+Minetest-c55
+Copyright (C) 2012 sapier
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along
+with this program; if not, write to the Free Software Foundation, Inc.,
+51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+#ifndef __COLLIDABLEOBJECT_H__
+#define __COLLIDABLEOBJECT_H__
+
+#include <irrlichttypes.h>
+
+class CollidableObject {
+public:
+	virtual aabb3f* getCollisionBox() = 0;
+
+	inline float getFlexibility() { return m_Flexibility; }
+	inline int   getWeight()      { return m_Weight; }
+protected:
+	int m_Weight;
+	float m_Flexibility;
+	aabb3f m_collisionbox;
+};
+
+#endif //__COLLIDABLEOBJECT_H__

src/collision.cpp

@@ -18,6 +18,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 */
 
 #include "collision.h"
+#include "collidableobject.h"
 #include "mapblock.h"
 #include "map.h"
 #include "nodedef.h"
@@ -266,13 +267,18 @@ collisionMoveResult collisionMoveSimple(Environment* env,
 		for (core::list<ActiveObject*>::Iterator iter = objects.begin();
 				iter != objects.end(); iter++)
 		{
-			aabb3f* object_collisionbox = (*iter)->getCollisionBox();
-			//TODO do we need to check if it's really near enough?
-			if (object_collisionbox != NULL)
+			CollidableObject* object = dynamic_cast<CollidableObject*>(*iter);
+
+			if (object != NULL)
 			{
-				cboxes.push_back(*object_collisionbox);
-				is_unloaded.push_back(false);
-				is_step_up.push_back(false);
+				aabb3f* object_collisionbox = object->getCollisionBox();
+				//TODO do we need to check if it's really near enough?
+				if (object_collisionbox != NULL)
+				{
+					cboxes.push_back(*object_collisionbox);
+					is_unloaded.push_back(false);
+					is_step_up.push_back(false);
+				}
 			}
 		}
 	} //tt3

src/content_cao.cpp

@@ -21,6 +21,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include "tile.h"
 #include "environment.h"
 #include "collision.h"
+#include "collidableobject.h"
 #include "settings.h"
 #include <ICameraSceneNode.h>
 #include <ITextSceneNode.h>
@@ -1681,7 +1682,7 @@ void MobV2CAO::setLooks(const std::string &looks)
 
 #include "luaentity_common.h"
 
-class LuaEntityCAO : public ClientActiveObject
+class LuaEntityCAO : public ClientActiveObject , public CollidableObject
 {
 private:
 	core::aabbox3d<f32> m_selection_box;
@@ -1701,7 +1702,6 @@ private:
 	int m_anim_num_frames;
 	float m_anim_framelength;
 	float m_anim_timer;
-	aabb3f m_collisionbox;
 
 public:
 	LuaEntityCAO(IGameDef *gamedef, ClientEnvironment *env):
@@ -2123,7 +2123,7 @@ LuaEntityCAO proto_LuaEntityCAO(NULL, NULL);
 	PlayerCAO
 */
 
-class PlayerCAO : public ClientActiveObject
+class PlayerCAO : public ClientActiveObject, public CollidableObject
 {
 private:
 	core::aabbox3d<f32> m_selection_box;
@@ -2137,7 +2137,6 @@ private:
 	LocalPlayer *m_local_player;
 	float m_damage_visual_timer;
 	bool m_dead;
-	aabb3f m_collisionbox;
 
 public:
 	PlayerCAO(IGameDef *gamedef, ClientEnvironment *env):

src/content_sao.h

@@ -22,6 +22,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 
 #include "serverobject.h"
 #include "content_object.h"
+#include "collidableobject.h"
 
 class TestSAO : public ServerActiveObject
 {
@@ -32,7 +33,6 @@ public:
 	static ServerActiveObject* create(ServerEnvironment *env, v3f pos,
 			const std::string &data);
 	void step(float dtime, bool send_recommended);
-	inline aabb3f* getCollisionBox() { return NULL; }
 private:
 	float m_timer1;
 	float m_age;
@@ -52,7 +52,6 @@ public:
 	ItemStack createItemStack();
 	void punch(ServerActiveObject *puncher, float time_from_last_punch);
 	float getMinimumSavedMovement(){ return 0.1*BS; }
-	inline aabb3f* getCollisionBox() { return NULL; }
 private:
 	std::string m_itemstring;
 	bool m_itemstring_changed;
@@ -73,7 +72,6 @@ public:
 	std::string getClientInitializationData();
 	std::string getStaticData();
 	void punch(ServerActiveObject *puncher, float time_from_last_punch);
-	inline aabb3f* getCollisionBox() { return NULL; }
 private:
 	bool m_is_active;
 	IntervalLimiter m_inactive_interval;
@@ -100,7 +98,6 @@ public:
 	std::string getStaticData();
 	void punch(ServerActiveObject *puncher, float time_from_last_punch);
 	bool isPeaceful(){return false;}
-	inline aabb3f* getCollisionBox() { return NULL; }
 private:
 	void doDamage(u16 d);
 
@@ -129,7 +126,6 @@ public:
 	void step(float dtime, bool send_recommended);
 	std::string getClientInitializationData();
 	std::string getStaticData();
-	inline aabb3f* getCollisionBox() { return NULL; }
 private:
 	bool m_is_active;
 	IntervalLimiter m_inactive_interval;
@@ -160,7 +156,6 @@ public:
 	void step(float dtime, bool send_recommended);
 	void punch(ServerActiveObject *puncher, float time_from_last_punch);
 	bool isPeaceful();
-	inline aabb3f* getCollisionBox() { return NULL; }
 private:
 	void sendPosition();
 	void setPropertyDefaults();
@@ -198,7 +193,7 @@ private:
 
 struct LuaEntityProperties;
 
-class LuaEntitySAO : public ServerActiveObject
+class LuaEntitySAO : public ServerActiveObject, public CollidableObject
 {
 public:
 	LuaEntitySAO(ServerEnvironment *env, v3f pos,
@@ -245,7 +240,6 @@ private:
 	v3f m_last_sent_velocity;
 	float m_last_sent_position_timer;
 	float m_last_sent_move_precision;
-	aabb3f m_collisionbox;
 };
 
 #endif

src/game.cpp

@@ -362,15 +362,6 @@ PointedThing getPointedThing(Client *client, v3f player_position,
 		if(!isPointableNode(n, client, liquids_pointable))
 			continue;
 
-		v3s16 facedirs[6] = {
-			v3s16(-1,0,0),
-			v3s16(1,0,0),
-			v3s16(0,-1,0),
-			v3s16(0,1,0),
-			v3s16(0,0,-1),
-			v3s16(0,0,1),
-		};
-
 		std::vector<aabb3f> boxes = n.getSelectionBoxes(client->ndef());
 
 		v3s16 np(x,y,z);
@@ -384,52 +375,37 @@ PointedThing getPointedThing(Client *client, v3f player_position,
 			box.MinEdge += npf;
 			box.MaxEdge += npf;
 
-			f32 d = 0.001*BS;
-			aabb3f faceboxes[6] = {
-				// X-
-				aabb3f(
-					box.MinEdge.X, box.MinEdge.Y, box.MinEdge.Z,
-					box.MinEdge.X+d, box.MaxEdge.Y, box.MaxEdge.Z
-				),
-				// X+
-				aabb3f(
-					box.MaxEdge.X-d, box.MinEdge.Y, box.MinEdge.Z,
-					box.MaxEdge.X, box.MaxEdge.Y, box.MaxEdge.Z
-				),
-				// Y-
-				aabb3f(
-					box.MinEdge.X, box.MinEdge.Y, box.MinEdge.Z,
-					box.MaxEdge.X, box.MinEdge.Y+d, box.MaxEdge.Z
-				),
-				// Y+
-				aabb3f(
-					box.MinEdge.X, box.MaxEdge.Y-d, box.MinEdge.Z,
-					box.MaxEdge.X, box.MaxEdge.Y, box.MaxEdge.Z
-				),
-				// Z-
-				aabb3f(
-					box.MinEdge.X, box.MinEdge.Y, box.MinEdge.Z,
-					box.MaxEdge.X, box.MaxEdge.Y, box.MinEdge.Z+d
-				),
-				// Z+
-				aabb3f(
-					box.MinEdge.X, box.MinEdge.Y, box.MaxEdge.Z-d,
-					box.MaxEdge.X, box.MaxEdge.Y, box.MaxEdge.Z
-				),
-			};
-
 			for(u16 j=0; j<6; j++)
 			{
-				v3f centerpoint = faceboxes[j].getCenter();
+				v3s16 facedir = g_6dirs[j];
+				aabb3f facebox = box;
+
+				f32 d = 0.001*BS;
+				if(facedir.X > 0)
+					facebox.MinEdge.X = facebox.MaxEdge.X-d;
+				else if(facedir.X < 0)
+					facebox.MaxEdge.X = facebox.MinEdge.X+d;
+				else if(facedir.Y > 0)
+					facebox.MinEdge.Y = facebox.MaxEdge.Y-d;
+				else if(facedir.Y < 0)
+					facebox.MaxEdge.Y = facebox.MinEdge.Y+d;
+				else if(facedir.Z > 0)
+					facebox.MinEdge.Z = facebox.MaxEdge.Z-d;
+				else if(facedir.Z < 0)
+					facebox.MaxEdge.Z = facebox.MinEdge.Z+d;
+
+				v3f centerpoint = facebox.getCenter();
 				f32 distance = (centerpoint - camera_position).getLength();
 				if(distance >= mindistance)
 					continue;
-				if(!faceboxes[j].intersectsWithLine(shootline))
+				if(!facebox.intersectsWithLine(shootline))
 					continue;
 
+				v3s16 np_above = floatToInt(centerpoint + intToFloat(facedir, d), BS);
+
 				result.type = POINTEDTHING_NODE;
 				result.node_undersurface = np;
-				result.node_abovesurface = np+facedirs[j];
+				result.node_abovesurface = np_above;
 				mindistance = distance;
 
 				hilightboxes.clear();

src/serverremoteplayer.h

@@ -22,13 +22,14 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 
 #include "player.h"
 #include "serverobject.h"
+#include "collidableobject.h"
 #include "content_object.h" // Object type IDs
 
 /*
 	Player on the server
 */
 
-class ServerRemotePlayer : public Player, public ServerActiveObject
+class ServerRemotePlayer : public Player, public ServerActiveObject , public CollidableObject
 {
 public:
 	ServerRemotePlayer(ServerEnvironment *env);
@@ -96,7 +97,6 @@ public:
 	aabb3f* getCollisionBox();
 private:
 	bool m_position_not_sent;
-	aabb3f m_collisionbox;
 };
 
 #endif