SYNTAX
["Open"
COMMAND]... ["Close" COMMAND]
There're several "Open" commands as well as several
operators, especially conditions and allways does it need to close the
function by a "Close" command
END = ["Close" COMMAND]
the construct of commands must always be closed by END
unless for a few exeptions with another "Close" COMMAND
LOOP Construct:
A loop is a statement which allows code to be repeatedly executed
We use following as standart main loop
WHILE ["Open" COMMAND] true [loop-condition]
...
END ["Close" COMMAND]
Important rule for gta engine:
Every loop must have a wait of at least 0, as the rest of the game is
processed and rendered during those waits
WHILE ["Open" COMMAND] true [loop-condition]
wait 0
END ["Close" COMMAND]
CONDITIONAL CHECK Construct
There is the operator IF to evaluate the condition.
IF ["Open" COMMAND]
..
THEN
..
END ["Close" COMMAND]
A condition is created by the rules described above.
After the word THEN, you have to specify the command(-s) that
are executed if the condition is true.
IF..THEN..END
After the word ELSE, you have to specify the command(-s) that
are executed if the condition is false.
IF..THEN..ELSE..END
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Let's write a simple script
The plan: if player spawn at gameload between 18:00 and midnight, then
enables infrared_vision
____
Opcode 00BF: returns the game time, we only need to check the
hours = 1@
The running thread instance will be terminated after one second
by 0A93: end_custom_thread
The construct for conditional check:
if
then
end
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{$CLEO .cs}
thread 'IVISION'
wait 1000
00BF: 1@ = current_time_hours, 0@ = current_time_minutes
if
1@ > 17
then
08B2: set_infrared_vision 1
end
0A93: end_custom_thread
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LOOP Construct:
Basic loop cunstruct instead of end_custom_thread
WHILE true
...
END
Script example below displays the internal timer on screen
only three codes inside the loop
wait 0 as first
then two codes for displaying the timer value |
{$CLEO .cs}
thread 'timer'
33@ = 0
while true
wait 0
03F0: enable_text_draw 1
045A: draw_text_1number 100.0 200.0 GXT 'NUMBER' number 33@
end
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LOOP Construct:
Basic loop and one conditional check
if internal timer is bigger than 7000,
then reset timer to 0
After the word THEN, you have to specify the command(-s) that are executed
if the condition is true.
IF..THEN..END
After the word ELSE, you have to specify the command(-s) that are executed
if the condition is false.
IF..THEN..ELSE..END
Script example below displays the internal timer on screen
only three codes inside the loop
wait 0 as first
then two codes for displaying the timer value |
{$CLEO .cs}
thread 'timer'
while true
wait 0
03F0: enable_text_draw 1
045A: draw_text_1number 100.0 200.0 GXT 'NUMBER' number 33@
if
33@ > 7000
then
33@ = 0
end
end
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The local variables 32@ and 33@ are reserved for the use as internal timer that counts permanently up in milliseconds
They can't be used for anything else, but we can restore it to 0 and then check if specified time goes by
if
33@ > 7000
then
33@ = 0
end
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extend the conditional check by argument
"else"
if
..[condition] i key is pressed
then
..[code]enables infrared_vision
else
..[code]disables infrared_vision
end |
{$CLEO .cs}
thread 'IVISION'
while true
wait 0
if
0AB0: key_pressed 73// i key
then
08B2: set_infrared_vision 1
else
08B2: set_infrared_vision 0
end
end
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The Syntax allows to build constructs into each other
Each construct requires the END["Close" COMMAND] at right
place to lock the right content in
it needs to close first the the construct of the deepest level, then
these of the next upper level
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while true
wait 0
if
0256: player $PLAYER_CHAR defined
then
if
then
else
if
then
else
if
then
end
end
end
end
end
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Or collect conditional checks below of each other
Example below does same as the one above additional with operator "OR"
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while true
wait 0
if
0256: player $PLAYER_CHAR defined
then
if or
then
end
if or
then
end
end
end
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After the word THEN, you have to specify the command(-s) that are executed
if the condition is true.
IF..THEN..END
After the word ELSE, you have to specify the command(-s) that are executed
if the condition is false.
IF..THEN..ELSE..END
Script example below gives paintjob to car model blade and carcolor to
car model ALPHA and BULLET
when player is driving specified car model
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{$CLEO .cs}
thread 'PAINT'
while true
wait 0
if
0256: player $PLAYER_CHAR defined
then
if
00DD: actor $PLAYER_ACTOR driving_car_with_model #blade
then
03C0: 0@ = actor $PLAYER_ACTOR car
06ED: set_car 0@ paintjob 0
wait 1000
06ED: set_car 0@ paintjob 1
wait 1000
else
if
00DD: actor $PLAYER_ACTOR driving_car_with_model #ALPHA
then
03C0: 0@ = actor $PLAYER_ACTOR car
0229: set_car 0@ primary_color_to 17 secondary_color_to 0
wait 1000
else
if
00DD: actor $PLAYER_ACTOR driving_car_with_model #BULLET
then
03C0: 0@ = actor $PLAYER_ACTOR car
0229: set_car 0@ primary_color_to 0 secondary_color_to 17
wait 1000
end
end
end
wait 5000
end
end
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The script can also be written in this way
Now it gives paintjob to car model Blade, Remington and Savanna and carcolor to ALPHA, Infernus and BULLET
when player is driving specified car model
CONDITIONAL CHECK can expand by logic operator OR or AND
IF OR - conditions connected with the logic operator OR
IF AND - conditions connected with the logic operator AND
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{$CLEO .cs}
thread 'PAINT'
while true
wait 0
if
0256: player $PLAYER_CHAR defined
then
if or
00DD: actor $PLAYER_ACTOR driving_car_with_model #REMINGTN
00DD: actor $PLAYER_ACTOR driving_car_with_model #blade
00DD: actor $PLAYER_ACTOR driving_car_with_model #SAVANNA
then
03C0: 0@ = actor $PLAYER_ACTOR car
06ED: set_car 0@ paintjob 0
wait 1000
06ED: set_car 0@ paintjob 1
wait 1000
end
if or
00DD: actor $PLAYER_ACTOR driving_car_with_model #BULLET
00DD: actor $PLAYER_ACTOR driving_car_with_model #ALPHA
00DD: actor $PLAYER_ACTOR driving_car_with_model #INFERNUS
then
03C0: 0@ = actor $PLAYER_ACTOR car
0229: set_car 0@ primary_color_to 0 secondary_color_to 17
wait 1000
end
wait 5000
end
end
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IF AND - conditions connected with the logic operator AND
IF OR - conditions connected with the logic operator OR
Next Script example gives paintjob and carcolor
when player is driving specified car model
AND
key is pressed
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{$CLEO .cs}
thread 'PAINT'
while true
wait 0
if
0256: player $PLAYER_CHAR defined
then
if and
0AB0: key_pressed 66// b key
00DD: actor $PLAYER_ACTOR driving_car_with_model #blade
then
03C0: 0@ = actor $PLAYER_ACTOR car
06ED: set_car 0@ paintjob 0
wait 1000
06ED: set_car 0@ paintjob 1
wait 1000
else
if and
0AB0: key_pressed 78// n key
00DD: actor $PLAYER_ACTOR driving_car_with_model #ALPHA
then
03C0: 0@ = actor $PLAYER_ACTOR car
0229: set_car 0@ primary_color_to 17 secondary_color_to 0
wait 1000
end
if and
0AB0: key_pressed 77// m key
00DD: actor $PLAYER_ACTOR driving_car_with_model #BULLET
then
03C0: 0@ = actor $PLAYER_ACTOR car
0229: set_car 0@ primary_color_to 0 secondary_color_to 17
wait 1000
end
end
end
end
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Homepage: www.zazmahall.de/index.htm
E-Mail: zaz@zazmahall.de
13-Februar-2020
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