Advanced "Change Parameters" Script

#This is IdkWhatsRc's Advanced Parameter Change script.
#This script is free to use for non-commercial and commercial games.
#Please mention me in the credits section of your game if you use this script.
#This is my first script ever. :D
#
#
# ==Basics==
# Normally, the formula used is:
# New Stat = Old Stat + Value
# Ex: actor.maxhp += value
#
# With this script, you can modify the formula:
#
# To Set the Stat equal to the Value. (The value MUST be positive. AKA set to Increase and not Decrease.)
# New Stat = Value
# Ex: actor.maxhp = value
#
# To Increase/Decrease the Stat by a %
# Increase/Decrease : New Stat = Old Stat * (Value + 100) / 100
# Ex: actor.maxhp = actor.maxhp * (value + 100) /100
#
#Note: Increasing then decreasing by the same value will not result in the initial stat value.
# Ex: 1000 * 10% = 1000 + 1000*10% = 1000 + 100 = 1100
# 1100 - 10% = 1100 - 1100*10% = 1100 - 110 = 990
# Inital = 1000
# Final = 990
#
#
#If you want to increase then decrease and come back to the same number, then:
#
# Increase/Decrease : New Stat = Old Stat * 100 / (100 - Value)
# Ex: actor.maxhp = actor.maxhp * 100 / (100 - value)
#
# Note: You need to increase normally, then decrease specially to come back to the same value.
# Still, increasing then decreasing by the same value may not result in the exact initial stat value.
# This is because the engine rounds number.
# Your new stat may have a ±1 difference with your inital stat.
#
#
#
# ==How to Use It==
# To choose which formula you want to be used, you need to activate a certain switch.
#
# When Switch 14 is ON => Set the Stats equal to the Value.
# When Switch 15 is ON => Increase/Decrease the Stat by a %
# When Switch 16 is ON => Specially Decrease the Stat by a % (Check lign 29)
# By Default (Switch 14, 15, 16 OFF) => Increase/Decrease by a number
#
# To change the Switch ID, simply use Ctrl+H. XD
#
# Basically, right before changing a Parameter:
# 1. Turn ON Switch 14/15/16 if needed
# 2. Change the Stat
# 3. Turn OFF the Switch you activated in #1.
#
# Check the events for more details.
#

class Game_Interpreter

def command_317
value = operate_value(@params[2], @params[3], @params[4])
actor = $game_actors[@params[0]]
if actor != nil
case @params[1]
##########################################
##########################################
when 0 # Maximum HP
if $game_switches[14] == true
actor.maxhp = value
end

if $game_switches[15] == true
actor.maxhp = actor.maxhp * (value + 100) /100
end

if $game_switches[16] == true
actor.maxhp = actor.maxhp * 100 / (100 - value)
end

if $game_switches[14] == false
if $game_switches[15] == false
if $game_switches[16] == false
actor.maxhp += value
end
end
end
##########################################
##########################################
when 1 # Maximum MP
if $game_switches[14] == true
actor.maxmp = value
end

if $game_switches[15] == true
actor.maxmp = actor.maxmp * (value + 100) /100
end

if $game_switches[16] == true
actor.maxmp = actor.maxmp * 100 / (100 - value)
end

if $game_switches[14] == false
if $game_switches[15] == false
if $game_switches[16] == false
actor.maxmp += value
end
end
end

##########################################
##########################################
when 2 # Attack
if $game_switches[14] == true
actor.atk = value
end

if $game_switches[15] == true
actor.atk = actor.atk * (value + 100) /100
end

if $game_switches[16] == true
actor.atk = actor.atk * 100 / (100 - value)
end

if $game_switches[14] == false
if $game_switches[15] == false
if $game_switches[16] == false
actor.atk += value
end
end
end
##########################################
##########################################
when 3 # Defense
if $game_switches[14] == true
actor.def = value
end

if $game_switches[15] == true
actor.def = actor.def * (value + 100) /100
end

if $game_switches[16] == true
actor.def = actor.def * 100 / (100 - value)
end

if $game_switches[14] == false
if $game_switches[15] == false
if $game_switches[16] == false
actor.def += value
end
end
end
##########################################
##########################################
when 4 # Spirit
if $game_switches[14] == true
actor.spi = value
end

if $game_switches[15] == true
actor.spi = actor.spi * (value + 100) /100
end

if $game_switches[16] == true
actor.spi = actor.spi * 100 / (100 - value)
end

if $game_switches[14] == false
if $game_switches[15] == false
if $game_switches[16] == false
actor.spi += value
end
end
end
##########################################
##########################################
when 5 # Agility
if $game_switches[14] == true
actor.agi = value
end

if $game_switches[15] == true
actor.agi = actor.agi * (value + 100) /100
end

if $game_switches[16] == true
actor.agi = actor.agi * 100 / (100 - value)
end

if $game_switches[14] == false
if $game_switches[15] == false
if $game_switches[16] == false
actor.agi += value
end
end
end
##########################################
##########################################
end
return true

end
end
end