- Modified map_searchrandfreecell to always do a check on a 9x9 area around the target tile, and to return the x,y coordinates modified with the new target.

- Modified map_addflooritem so that the type is &1 for mvp drops and &2 for stacking checks, when &2 the item to drop cannot stack on the floor, otherwise it has no stacking limit.


git-svn-id: https://rathena.svn.sourceforge.net/svnroot/rathena/trunk@5248 54d463be-8e91-2dee-dedb-b68131a5f0ec

1 files changed, 24 insertions, 53 deletions

diff --git a/src/map/map.c b/src/map/map.c
index f30b70619..4ffd10414 100644
--- a/src/map/map.c
+++ b/src/map/map.c
@@ -1314,83 +1314,54 @@ int map_clearflooritem_timer(int tid,unsigned int tick,int id,int data) {
 }

 

 /*==========================================

- * (m,x,y)の周?rangeマス?の空き(=侵入可能)cellの

- * ?から適?なマス目の座標をx+(y<<16)で返す

- *

- * 現?range=1でアイテムドロップ用途のみ

+ * (m,x,y) locates a random available free cell around the given coordinates

+ * to place an BL_ITEM object. Scan area is 9x9, returns 1 on success.

+ * x and y are modified with the target cell when successful.

  *------------------------------------------

  */

-int map_searchrandfreecell(int m,int x,int y,int range) {

+int map_searchrandfreecell(int m,int *x,int *y,int stack) {

 	int free_cell,i,j;

-	int* free_cells;

+	int free_cells[9][2];

 

-	if (range < 0)

-		return -1;

-	

-	//FIXME: Would it be quicker to hardcode an array of 9 since this function is always called with range 1?

-	free_cells = aCalloc((2*range+1)*(2*range+1), sizeof(int)); //better use more memory than having to wipe twice the cells. [Skotlex]

-	

-	for(free_cell=0,i=-range;i<=range;i++){

+	for(free_cell=0,i=-1;i<=1;i++){

 		if(i+y<0 || i+y>=map[m].ys)

 			continue;

-		for(j=-range;j<=range;j++){

+		for(j=-1;j<=1;j++){

 			if(j+x<0 || j+x>=map[m].xs)

 				continue;

 			if(map_getcell(m,j+x,i+y,CELL_CHKNOPASS))

 				continue;

-			if(map_count_oncell(m,j+x,i+y, BL_ITEM) > 1) //Avoid item stacking to prevent against exploits. [Skotlex]

+			//Avoid item stacking to prevent against exploits. [Skotlex]

+			if(stack && map_count_oncell(m,j+x,i+y, BL_ITEM) > stack)

 				continue;

-			free_cells[free_cell++] = j+x+((i+y)<<16);

+			free_cells[free_cell][0] = j+x;

+			free_cells[free_cell++][1] = i+y;

 		}

 	}

 	if(free_cell==0)

-	{

-		aFree(free_cells);

-		return -1;

-	}

-	free_cell=free_cells[rand()%free_cell];

-	aFree(free_cells);

-	return free_cell;

-/*

-	for(i=-range;i<=range;i++){

-		if(i+y<0 || i+y>=map[m].ys)

-			continue;

-		for(j=-range;j<=range;j++){

-			if(j+x<0 || j+x>=map[m].xs)

-				continue;

-			if(map_getcell(m,j+x,i+y,CELL_CHKNOPASS))

-				continue;

-			if(map_count_oncell(m,j+x,i+y, BL_ITEM) > 1) //Avoid item stacking to prevent against exploits. [Skotlex]

-				continue;

-			if(free_cell==0){

-				x+=j;

-				y+=i;

-				i=range+1;

-				break;

-			}

-			free_cell--;

-		}

-	}

-

-	return x+(y<<16);

-*/

+		return 0;

+	free_cell = rand()%free_cell;

+	*x = free_cells[free_cell][0];

+	*y = free_cells[free_cell][1];

+	return 1;

 }

 

 /*==========================================

  * (m,x,y)を中心に3x3以?に床アイテム設置

  *

  * item_dataはamount以外をcopyする

+ * type flag: &1 MVP item. &2 do stacking check.

  *------------------------------------------

  */

 int map_addflooritem(struct item *item_data,int amount,int m,int x,int y,struct map_session_data *first_sd,

     struct map_session_data *second_sd,struct map_session_data *third_sd,int type) {

-	int xy,r;

+	int r;

 	unsigned int tick;

 	struct flooritem_data *fitem=NULL;

 

 	nullpo_retr(0, item_data);

 

-	if((xy=map_searchrandfreecell(m,x,y,1))<0)

+	if(!map_searchrandfreecell(m,&x,&y,type&2?1:0))

 		return 0;

 	r=rand();

 

@@ -1398,8 +1369,8 @@ int map_addflooritem(struct item *item_data,int amount,int m,int x,int y,struct
 	fitem->bl.type=BL_ITEM;

 	fitem->bl.prev = fitem->bl.next = NULL;

 	fitem->bl.m=m;

-	fitem->bl.x=xy&0xffff;

-	fitem->bl.y=(xy>>16)&0xffff;

+	fitem->bl.x=x;

+	fitem->bl.y=y;

 	fitem->bl.id = map_addobject(&fitem->bl);

 	if(fitem->bl.id==0){

 		aFree(fitem);

@@ -1409,21 +1380,21 @@ int map_addflooritem(struct item *item_data,int amount,int m,int x,int y,struct
 	tick = gettick();

 	if(first_sd) {

 		fitem->first_get_id = first_sd->bl.id;

-		if(type)

+		if(type&1)

 			fitem->first_get_tick = tick + battle_config.mvp_item_first_get_time;

 		else

 			fitem->first_get_tick = tick + battle_config.item_first_get_time;

 	}

 	if(second_sd) {

 		fitem->second_get_id = second_sd->bl.id;

-		if(type)

+		if(type&1)

 			fitem->second_get_tick = tick + battle_config.mvp_item_first_get_time + battle_config.mvp_item_second_get_time;

 		else

 			fitem->second_get_tick = tick + battle_config.item_first_get_time + battle_config.item_second_get_time;

 	}

 	if(third_sd) {

 		fitem->third_get_id = third_sd->bl.id;

-		if(type)

+		if(type&1)

 			fitem->third_get_tick = tick + battle_config.mvp_item_first_get_time + battle_config.mvp_item_second_get_time + battle_config.mvp_item_third_get_time;

 		else

 			fitem->third_get_tick = tick + battle_config.item_first_get_time + battle_config.item_second_get_time + battle_config.item_third_get_time;