- Added CELL_CHKSTACK to check if a map cell is stacked (CELL_NOSTACK server mod)

- Added flag 0x3000 to path_search to specify that path searching should go through stacked cells. Used for skill_wall_check calls.
- easy path_search will be successful in CELL_NOSTACK mode if the search fails only on the target cell (it is presumed the target cell contains the character one is trying to reach). The walk routines will take care of stopping the character from walking into another one when stacked.


git-svn-id: https://rathena.svn.sourceforge.net/svnroot/rathena/trunk@5263 54d463be-8e91-2dee-dedb-b68131a5f0ec

4 files changed, 32 insertions, 2 deletions

diff --git a/src/map/map.c b/src/map/map.c
index df3302313..d7cfa11db 100644
--- a/src/map/map.c
+++ b/src/map/map.c
@@ -2160,6 +2160,12 @@ int map_getcellp(struct map_data* m,int x,int y,cell_t cellchk)
 			if (type3 >= battle_config.cell_stack_limit) return 1;

 #endif

 			return (type==1 || type==5 || type2&(CELL_MOONLIT|CELL_ICEWALL));

+		case CELL_CHKSTACK:

+#ifdef CELL_NOSTACK

+			return (type3 >= battle_config.cell_stack_limit);

+#else

+			return 0;

+#endif

 		case CELL_CHKWALL:

 			return (type==1/* || type2&CELL_ICEWALL*/); //Uncomment to prevent sniping/casting through the icewall. [Skotlex]

 		case CELL_CHKWATER:

diff --git a/src/map/map.h b/src/map/map.h
index a8867b934..3a97991cb 100644
--- a/src/map/map.h
+++ b/src/map/map.h
@@ -1138,6 +1138,7 @@ typedef enum {
 	CELL_CHKNOPASS,		// 通過不可(セルタイプ1,5)

 	CELL_GETTYPE,		// セルタイプを返す

 	CELL_GETCELLTYPE,

+	CELL_CHKSTACK,

 	CELL_CHKNPC=0x10,	// タッチタイプのNPC(セルタイプ0x80フラグ)

 	CELL_CHKREGEN,		// cells that improve regeneration

 	CELL_CHKPNEUMA,

diff --git a/src/map/path.c b/src/map/path.c
index ad5c06f0f..7cab27683 100644
--- a/src/map/path.c
+++ b/src/map/path.c
@@ -172,6 +172,11 @@ static int can_place(struct map_data *m,int x,int y,int flag)
 		return 1;

 	if((flag&0x10000)&&map_getcellp(m,x,y,CELL_CHKGROUND))

 		return 1;

+#ifdef CELL_NOSTACK

+	//Special flag for CELL_NOSTACK systems. Returns true when the given cell is stacked. [Skotlex]

+	if((flag&0x30000)&&map_getcellp(m,x,y,CELL_CHKSTACK))

+		return 1;

+#endif

 	return 0;

 }

 

@@ -332,9 +337,18 @@ int path_search(struct walkpath_data *wpd,int m,int x0,int y0,int x1,int y1,int
 	if(!map[m].gat)

 		return -1;

 	md=&map[m];

-	if(x1<0 || x1>=md->xs || y1<0 || y1>=md->ys || map_getcellp(md,x1,y1,CELL_CHKNOPASS))

+

+	if(x1<0 || x1>=md->xs || y1<0 || y1>=md->ys)

 		return -1;

 

+#ifdef CELL_NOSTACK

+	if (map_getcellp(md,x1,y1,CELL_CHKNOPASS) && !map_getcellp(md,x1,y1,CELL_CHKSTACK))

+		return -1;

+#else

+	if (map_getcellp(md,x1,y1,CELL_CHKNOPASS))

+		return -1;

+#endif

+

 	// easy

 	dx = (x1-x0<0) ? -1 : 1;

 	dy = (y1-y0<0) ? -1 : 1;

@@ -366,6 +380,15 @@ int path_search(struct walkpath_data *wpd,int m,int x0,int y0,int x1,int y1,int
 		return 0;

 	}

 	

+#ifdef CELL_NOSTACK

+	//If you fail by 1 cell, consider easy path successful, too. [Skotlex]

+	if (check_distance(x-x1,y-y1,1)) {

+		wpd->path_len=i;

+		wpd->path_pos=0;

+		wpd->path_half=0;

+		return 0;

+	}

+#endif

 	if(flag&1)

 		return -1;

 

diff --git a/src/map/skill.c b/src/map/skill.c
index 4b77391a2..d10aaf4ea 100644
--- a/src/map/skill.c
+++ b/src/map/skill.c
@@ -6696,7 +6696,7 @@ struct skill_unit_group *skill_unitsetting( struct block_list *src, int skillid,
 		if (alive && battle_config.skill_wall_check) {

 			//Check if there's a path between cell and center of casting.

 			struct walkpath_data wpd;

-			if (path_search(&wpd,src->m,ux,uy,x,y,1)==-1)

+			if (path_search(&wpd,src->m,ux,uy,x,y,0x30001)==-1)

 				alive = 0;

 		}