Help with this soul link mods

[Blazing Spear]

Im currently working with this modification Here

 

Im not expert enough for src coding i really need some help

 

Alchemist Soul link mods

 

- Acid Terror becomes a splash skill in an area of 4x4 around the target player or mob and does 100%+110%*SkillLV ATK.

case AM_ACIDTERROR:

if (!(flag&1) && sc && sc->data[SC_SPIRIT] && sc->data[SC_SPIRIT]->val2 == SL_ALCHEMIST)

{ //Become a slash attack when Soul Linked.

map_foreachinrange(skill_area_sub, bl,

skill_get_splash(skill_id, skill_lv),splash_target(src),

src_skill_id,skill_lv,tick, flag|BCT_ENEMY|1,

skill_castend_damage_id);

} else

skill_attack(BF_WEAPON,src,src,bl,skill_id,skill_lv,tick,flag);

break;

for 100%+110%*SkillLV ATK

case AM_ACIDTERROR:

skillratio += 10*(skill_lv-1);

if (sd && sd->sc.data[SC_SPIRIT] && sd->sc.data[SC_SPIRIT]->val2 == SL_ALCHEMIST)

skillratio += 110;

break; 

Enable to use parrying using one handed sword

skill.c

bool skill_check_condition_castend(struct map_session_data* sd, uint16 skill_id, uint16 skill_lv) {

struct skill_condition require;

struct status_data *status;

int i;

int index[MAX_SKILL_ITEM_REQUIRE];

+ struct status_change *sc = &sd->sc;

skill.c

if(require.weapon && !(pc_check_weapontype(sd,require.weapon) || (skill == LK_PARRYING && sc && sc->data[SC_SPIRIT] && sc->data[SC_SPIRIT]->val2 == SL_KNIGHT && sd->status.weapon == W_1HSWORD)) ){

clif_skill_fail(sd,skill_id,USESKILL_FAIL_THIS_WEAPON,0);

return false;

} 

status.c

case SC_PARRYING:

+ if(sd && sd->status.weapon == W_1HSWORD)

+     val2 = val1 * 3; 

Reducing all after cast delay of knight and lord knight skill when linked by 40%

if ( sc && sc->data[SC_SPIRIT] ) {

+   if(sc->data[SC_SPIRIT]->val2 == SL_KNIGHT)

+ time /= 10;

switch (skill_id) {

case CR_SHIELDBOOMERANG:

if (sc->data[sC_SPIRIT]->val2 == SL_CRUSADER)

time /= 2;

break;

case AS_SONICBLOW:

if (!map_flag_gvg3(bl->m) && sc->data[sC_SPIRIT]->val2 == SL_ASSASIN)

time /= 2;

break;

}

} 

Correct the code if im wrong