Fixed bugreport:6074 updated Renewal Def and MDef damage reduction formula. Special thanks to KyleZ.

Fixed bugreport:7028 where damage bonus of SR_GATEOFHELL has interchange with normal damage bonus.
Fixed bugreport:6946 where CH_PALMSTRIKE causes damage when caster hides after casting.

git-svn-id: https://svn.code.sf.net/p/rathena/svn/trunk@17062 54d463be-8e91-2dee-dedb-b68131a5f0ec

src/map/battle.c

@@ -2981,9 +2981,9 @@ static struct Damage battle_calc_weapon_attack(struct block_list *src,struct blo
 				case SR_GATEOFHELL:
 					ATK_ADD (sstatus->max_hp - status_get_hp(src));
 					if(sc && sc->data[SC_COMBO] && sc->data[SC_COMBO]->val1 == SR_FALLENEMPIRE){
-						ATK_ADD ( ((int64)sstatus->sp * (1 + skill_lv * 2 / 10)) + 10 * status_get_lv(src) );
-					}else{
 						ATK_ADD ( ((int64)sstatus->max_sp * (1 + skill_lv * 2 / 10)) + 40 * status_get_lv(src) );
+					}else{
+						ATK_ADD ( ((int64)sstatus->sp * (1 + skill_lv * 2 / 10)) + 10 * status_get_lv(src) );
 					}
 					break;
 				case SR_TIGERCANNON: // (Tiger Cannon skill level x 240) + (Target Base Level x 40)
@@ -3173,47 +3173,64 @@ static struct Damage battle_calc_weapon_attack(struct block_list *src,struct blo
 			}
 			//Vitality reduction from rodatazone: http://rodatazone.simgaming.net/mechanics/substats.php#def
 			if (tsd)	//Sd vit-eq
-			{	//[VIT*0.5] + rnd([VIT*0.3], max([VIT*0.3],[VIT^2/150]-1))
+			{	
+#ifndef RENEWAL
+				//[VIT*0.5] + rnd([VIT*0.3], max([VIT*0.3],[VIT^2/150]-1))
 				vit_def = def2*(def2-15)/150;
 				vit_def = def2/2 + (vit_def>0?rnd()%vit_def:0);
-
+#else
+				vit_def = def2;
+#endif
 				if((battle_check_undead(sstatus->race,sstatus->def_ele) || sstatus->race==RC_DEMON) && //This bonus already doesnt work vs players
 					src->type == BL_MOB && (skill=pc_checkskill(tsd,AL_DP)) > 0)
 					vit_def += skill*(int)(3 +(tsd->status.base_level+1)*0.04);   // submitted by orn
 				if( src->type == BL_MOB && (skill=pc_checkskill(tsd,RA_RANGERMAIN))>0 &&
 					(sstatus->race == RC_BRUTE || sstatus->race == RC_FISH || sstatus->race == RC_PLANT) )
 					vit_def += skill*5;
-			} else { //Mob-Pet vit-eq
+			} 
+			else { //Mob-Pet vit-eq
+#ifndef RENEWAL
 				//VIT + rnd(0,[VIT/20]^2-1)
 				vit_def = (def2/20)*(def2/20);
 				vit_def = def2 + (vit_def>0?rnd()%vit_def:0);
+#else
+				vit_def = def2;
+#endif
 			}
 
+
 			if (battle_config.weapon_defense_type) {
 				vit_def += def1*battle_config.weapon_defense_type;
 				def1 = 0;
 			}
 			#ifdef RENEWAL
-				/**
-				 * In Renewal 100% damage reduction is 900 DEF
-				 * Formula: (1+(900-def1)/9)%
-				 **/
-				if (def1 > 900) def1 = 900;
-				ATK_RATE2(
-					flag.idef ?100:(flag.pdef ? (flag.pdef*(def1+vit_def)) : (1+(900-def1)/9)),
-			 		flag.idef2?100:(flag.pdef2 ? (flag.pdef2*(def1+vit_def)) : (1+(900-def1)/9))
-				);
+			/**
+			* RE DEF Reduction
+			* Damage = Attack * (4000+eDEF)/(4000+eDEF) - sDEF
+			* Icepick no longer bypasses defense, but gains 1 atk per def
+			**/
+
+			ATK_ADD2(
+				flag.pdef ?(def1+vit_def):0,
+				flag.pdef2?(def1+vit_def):0
+			);
+			if (!flag.idef || !flag.idef2){
+				wd.damage = wd.damage * (4000+def1) / (4000+10*def1) - vit_def;
+				if(flag.lh)
+					wd.damage2 = wd.damage2 * (4000+def1) / (4000+10*def1) - vit_def;
+			}
+
 			#else
 				if (def1 > 100) def1 = 100;
 				ATK_RATE2(
 					flag.idef ?100:(flag.pdef ? (flag.pdef*(def1+vit_def)) : (100-def1)),
 			 		flag.idef2?100:(flag.pdef2? (flag.pdef2*(def1+vit_def)) : (100-def1))
 				);
+				ATK_ADD2(
+					flag.idef ||flag.pdef ?0:-vit_def,
+					flag.idef2||flag.pdef2?0:-vit_def
+				);
 			#endif
-			ATK_ADD2(
-				flag.idef ||flag.pdef ?0:-vit_def,
-				flag.idef2||flag.pdef2?0:-vit_def
-			);
 		}
 
 		//Post skill/vit reduction damage increases
@@ -4055,12 +4072,10 @@ struct Damage battle_calc_magic_attack(struct block_list *src,struct block_list
 			}
 		#ifdef RENEWAL
 			/**
-			 * RE MDEF Reduction (from doddler:?title=Renewal_Changes#MDEF)
-			 * Damage from magic = Magic Attack * 111.5/(111.5+eMDEF)
-			 * Damage = Magic Attack * 111.5/(111.5+eMDEF) - sMDEF
+			 * RE MDEF Reduction
+			 * Damage = Magic Attack * (1000+eMDEF)/(1000+eMDEF) - sMDEF
 			 **/
-			if(mdef < -111) mdef = -111; // value smaller -111 brings back the damage to origin up to -223.
-			ad.damage = ad.damage * 1115 / (1115 + mdef * 10) - mdef2;
+			ad.damage = ad.damage * (1000 + mdef) / (1000 + mdef * 10) - mdef2;
 		#else
 			if(battle_config.magic_defense_type)
 				ad.damage = ad.damage - mdef*battle_config.magic_defense_type - mdef2;

src/map/pc.c

@@ -2057,8 +2057,12 @@ int pc_bonus(struct map_session_data *sd,int type,int val)
 		break;
 	case SP_BASE_ATK:
 		if(sd->state.lr_flag != 2) {
+//#ifdef RENEWAL
+//            sd->bonus.eatk += val;
+//#else
 			bonus = status->batk + val;
 			status->batk = cap_value(bonus, 0, USHRT_MAX);
+//#endif
 		}
 		break;
 	case SP_DEF1:
@@ -2592,7 +2596,7 @@ int pc_bonus(struct map_session_data *sd,int type,int val)
 		if(sd->state.lr_flag != 2)
 			sd->bonus.itemhealrate2 += val;
 		break;
-		case SP_EMATK:
+	case SP_EMATK:
            if(sd->state.lr_flag != 2)
                sd->bonus.ematk += val;
            break;

src/map/pc.h

@@ -320,6 +320,7 @@ struct map_session_data {
 		unsigned short unstripable_equip;
 		int fixcastrate,varcastrate;
 		int ematk; // matk bonus from equipment
+//		int eatk; // atk bonus from equipment
 	} bonus;
 
 	// zeroed vars end here.

src/map/skill.c

@@ -3282,7 +3282,9 @@ static int skill_timerskill(int tid, unsigned int tick, int id, intptr_t data)
 				case CH_PALMSTRIKE:
 					{
 						struct status_change* tsc = status_get_sc(target);
-						if( tsc && tsc->option&OPTION_HIDE ){
+						struct status_change* sc = status_get_sc(src);
+						if( tsc && tsc->option&OPTION_HIDE ||
+							sc && sc->option&OPTION_HIDE ){
 							skill_blown(src,target,skill_get_blewcount(skl->skill_id, skl->skill_lv), -1, 0x0 );
 							break;
 						}