RPG Maker XP déplacement QSDZ

Bonjour,

J'ai un script de RMXP qui permet de jouer en multijoueur (Ecran séparé en deux)
Le problème est que le scripteur l'a conçu en clavier QWERTY, et donc pas les bon déplacement.
Je voudrais avancer: Z
Aller en arrière: S
Aller à droite: D
Aller à gauche: Q

Son script est en
Avancer: W
Aller en arrière: S
Aller à droite: D
Aller à gauche: A

Le script est:

=begin -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
Aleworks Keys Module
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
Created by Aleworks
Version: 1.00.USA
Last Update: 12/12/2006 (dd/mm/yyyy)
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
* This module has all the keys of the USA keyboard.
* The USA keyboard is like this:

----------------------------------------------------------------------------
- ESC F1 F2 F3 F4 F5 F6 F7 F8 F9 F10 F11 F12 SNP SCRL PAUSE -
- -
- ` 1 2 3 4 5 6 7 8 9 0 - = BACKSPACE INS HOME PGUP N / * - -
- TAB Q W E R T Y U I O P [ ] EN-TER DEL END PGDW 7 8 9 + -
- CAPS A S D F G H J K L ; ' E-N-T-ER 4 5 6 + -
- SHIFT Z X C V B N M , . / S-H-IFT \ UP 1 2 3 EN -
- CTRL WIN ALT S-P-A-C-E-B-A-R ALT WIN APPS CTRL LEFT DOWN RIGHT 0-- . TER -
----------------------------------------------------------------------------

=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
*** Functions ***
* Keys.name?(num)
Return a string with the name of the key "num".
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
=end

module Keys
#-----------------------------------------------------------------------------
MOUSE_PRIMARY = 1 # Mouse primary button (Normaly the left button)
MOUSE_SECONDARY = 2 # Mouse secondary button (Normaly the right button)
MOUSE_MIDDLE = 4 # Mouse middle button
MOUSE_4TH = 5 # Mouse fourth button
MOUSE_5TH = 6 # Mouse fifth button
#-----------------------------------------------------------------------------
BACKSPACE = 8 # BACKSPACE key
TAB = 9 # TAB key
RETURN = 13 # ENTER key
SHIFT = 16 # SHIFT key
CTLR = 17 # CTLR key
ALT = 18 # ALT key
CAPS_LOCK = 20 # CAPS LOCK key
ESCAPE = 27 # ESC key
SPACE = 32 # SPACEBAR
PGUP = 33 # PAGE UP key
PGDN = 34 # PAGE DOWN key
ENDS = 35 # END key
HOME = 36 # HOME key
LEFT = 37 # LEFT ARROW key
UP = 38 # UP ARROW key
RIGHT = 39 # RIGHT ARROW key
DOWN = 40 # DOWN ARROW key
SNAPSHOT = 44 # PRINT SCREEN key
INSERT = 45 # INS key
DELETE = 46 # DEL key
#-----------------------------------------------------------------------------
N0 = 48 # 0 key
N1 = 49 # 1 key
N2 = 50 # 2 key
N3 = 51 # 3 key
N4 = 52 # 4 key
N5 = 53 # 5 key
N6 = 54 # 6 key
N7 = 55 # 7 key
N8 = 56 # 8 key
N9 = 57 # 9 key
#-----------------------------------------------------------------------------
A = 65 # A key
B = 66 # B key
C = 67 # C key
D = 68 # D key
E = 69 # E key
F = 70 # F key
G = 71 # G key
H = 72 # H key
I = 73 # I key
J = 74 # J key
K = 75 # K key
L = 76 # L key
M = 77 # M key
N = 78 # N key
O = 79 # O key
P = 80 # P key
Q = 81 # Q key
R = 82 # R key
S = 83 # S key
T = 84 # T key
U = 85 # U key
V = 86 # V key
W = 87 # W key
X = 88 # X key
Y = 89 # Y key
Z = 90 # Z key
#-----------------------------------------------------------------------------
LWIN = 91 # Left Windows key (Microsoft Natural keyboard)
RWIN = 92 # Right Windows key (Natural keyboard)
APPS = 93 # Applications key (Natural keyboard)
#-----------------------------------------------------------------------------
NUMPAD0 = 96 # Numeric keypad 0 key
NUMPAD1 = 97 # Numeric keypad 1 key
NUMPAD2 = 98 # Numeric keypad 2 key
NUMPAD3 = 99 # Numeric keypad 3 key
NUMPAD4 = 100 # Numeric keypad 4 key
NUMPAD5 = 101 # Numeric keypad 5 key
NUMPAD6 = 102 # Numeric keypad 6 key
NUMPAD7 = 103 # Numeric keypad 7 key
NUMPAD8 = 104 # Numeric keypad 8 key
NUMPAD9 = 105 # Numeric keypad 9 key
MULTIPLY = 106 # Multiply key (*)
ADD = 107 # Add key (+)
SUBTRACT = 109 # Subtract key (-)
DECIMAL = 110 # . (Decimal from PAD)
DIVIDE = 111 # Divide key (/)
#-----------------------------------------------------------------------------
F1 = 112 # F1 key
F2 = 113 # F2 key
F3 = 114 # F3 key
F4 = 115 # F4 key
F5 = 116 # F5 key
F6 = 117 # F6 key
F7 = 118 # F7 key
F8 = 119 # F8 key
F9 = 120 # F9 key
F10 = 121 # F10 key
F11 = 122 # F11 key
F12 = 123 # F12 key
#-----------------------------------------------------------------------------
NUM_LOCK = 144 # NUM LOCK key
SCROLL_LOCK = 145 # SCROLL LOCK key
LEFT_SHIFT = 160 # Left SHIFT key
RIGHT_SHIFT = 161 # Right SHIFT key
LEFT_CONTROL = 162 # Left CONTROL key
RIGHT_CONTROL = 163 # Right CONTROL key
LEFT_ALT = 164 # Left ALT key
RIGHT_ALT = 165 # Right ALT key
#-----------------------------------------------------------------------------
COLLON = 186 # ; :
EQUAL = 187 # = +
COMMA = 188 # , <
UNDERSCORE = 189 # - _
DOT = 190 # . >
BACKSLASH = 191 # / ?
KEY192 = 192 # ` ~ I dont know the name of this key
LB = 219 # [ {
BACKSLASH2 = 220 # \ |
RB = 221 # ] }
QUOTE = 222 # ' "
#-----------------------------------------------------------------------------
def Keys.name?(num)
return "MOUSE PRIMARY" if num==1
return "MOUSE SECONDARY" if num==2
return "MOUSE MIDDLE" if num==4
return "MOUSE 4TH" if num==5
return "MOUSE 5TH" if num==6
return "BACKSPACE" if num==8
return "TAB" if num==9
return "RETURN" if num==13
return "SHIFT" if num==16
return "CTLR" if num==17
return "ALT" if num==18
return "CAPS LOCK" if num==20
return "ESCAPE" if num==27
return "SPACE" if num==32
return "PGUP" if num==33
return "PGDN" if num==34
return "END" if num==35
return "HOME" if num==36
return "LEFT" if num==37
return "UP" if num==38
return "RIGHT" if num==39
return "DOWN" if num==40
return "SNAPSHOT" if num==44
return "INSERT" if num==45
return "DELETE" if num==46
return "0" if num==48
return "1" if num==49
return "2" if num==50
return "3" if num==51
return "4" if num==52
return "5" if num==53
return "6" if num==54
return "7" if num==55
return "8" if num==56
return "9" if num==57
return "A" if num==65
return "B" if num==66
return "C" if num==67
return "D" if num==68
return "E" if num==69
return "F" if num==70
return "G" if num==71
return "H" if num==72
return "I" if num==73
return "J" if num==74
return "K" if num==75
return "L" if num==76
return "M" if num==77
return "N" if num==78
return "O" if num==79
return "P" if num==80
return "Q" if num==81
return "R" if num==82
return "S" if num==83
return "T" if num==84
return "U" if num==85
return "V" if num==86
return "W" if num==87
return "X" if num==88
return "Y" if num==89
return "Z" if num==90
return "LWIN" if num==91
return "RWIN" if num==92
return "APPS" if num==93
return "0" if num==96
return "1" if num==97
return "2" if num==98
return "3" if num==99
return "4" if num==100
return "5" if num==101
return "6" if num==102
return "7" if num==103
return "8" if num==104
return "9" if num==105
return "*" if num==106
return "+" if num==107
return "-" if num==109
return "." if num==110
return "/" if num==111
return "F1" if num==112
return "F2" if num==113
return "F3" if num==114
return "F4" if num==115
return "F5" if num==116
return "F6" if num==117
return "F7" if num==118
return "F8" if num==119
return "F9" if num==120
return "F10" if num==121
return "F11" if num==122
return "F12" if num==123
return "NUM LOCK" if num==144
return "SCROLL LOCK" if num==145
return "LEFT SHIFT" if num==160
return "RIGHT SHIFT" if num==161
return "LEFT CTRL" if num==162
return "RIGHT CTRL" if num==163
return "LEFT ALT" if num==164
return "RIGHT ALT" if num==165
return ";" if num==186
return "=" if num==187
return "," if num==188
return "_" if num==189
return "." if num==190
return "/" if num==191
return "`" if num==192
return "[" if num==219
return " \\ " if num==220
return "]" if num==221
return "'" if num==222
return "??? - " + "#{num}"
end
end

Je vous remercie d'avance pour vos réponses.
Au revoir !