Drag and Drop Icons and Their GML Equivalents for Version 6.1
Coding, Sprites, Logo © Mark Overmars, http://www.gamemaker.nl/
These are the colours that are used on the following pages and what they mean…
Green - Comments
Purple – User input
Blue – Built in Variables or statements.
Drag
and drop icons allow you to assign statements to other objects. You
can do this in code with the following...
//to
assign to another object...
with (object)
{
//actions here
}
//To
assign to the other object in a collision...
with
(other) {
//actions
here
}
//To assign the
statement to that object...
with (self)
{
//actions here
}
Please note that throughout the document I show examples of assigning code to other objects from a separate object. In order to make it easier I use the capitalization, 'ID' which Game Maker recognizes as a local variable. This is not to be confused with 'id' which is an inherited variable that will give you the current object's unique id number.
___________________________________________________
'Start
moving in a direction' 
'Set
the direction and speed of
motion'
motion_set(direction,speed);
'Move
in the direction of a point'
move_towards_point(x,y,speed);
'Set
the horizontal speed'
hspeed=speed;
'Set
the vertical speed'
vspeed=speed;
'Set
the gravity'
gravity_direction=direction;
gravity=amount;
'Reverse
horizontal direction'
hspeed=-hspeed;
//actual code.
'Reverse
vertical direction'
vspeed=-vspeed;
//actual code.
'Set
the friction'
friction=amount;
'Jump
to a given position'
x=value;
y=value;
'Jump
to the start position'
x=xstart;
//actual code.
y=ystart;
//actual code.
'Jump
to a random position'
move_random(1,1);
//actual code. The 1 and 1 in the code are the
hsnap and vsnap positions.
'Snap
to a grid'
move_snap(hsnap,vsnap);
’Wrap
when moving outside’
move_wrap(hort,vert,margin);
// This code should be placed in the outside room event. Set hort (horizontally) and vert (vertically) to either 1 for true or 0 for false. Set margin to how far outside the room the instance must be before the action happens.
'Move
to a contact position'
move_contact_solid(dir,maxdist)
//for solid
objects
move_contact_all(dir,maxdist)
//for non solid objects //dir=direction,
maxdist=maximum distance.
'Bounce
against objects'
move_bounce_solid(advanced);
//for solid objects, advanced=advance bounce(0
or 1).
move_bounce_all(advanced);
//for all objects, advanced=advance bounce(0 or
1).
'Set
path for the
instance'
path_start(path,speed,endaction,absolute);
'End
the path for an instance'
path_end();
'Set
the position on the path'
path_position=value;
//Must lie between 0 and 1.
'Set
the speed for the path'
path_speed=value;
//pixels per step.
'Perform
a step towards a point'
mp_linear_step(x,y,stepsize,checkall);
//
stepsize is in pixels. Checkall can be either 1 for stopping when
hitting any object, or 0 for only solid objects.
'Step
towards a point avoiding
objects'
mp_potential_step(x,y,stepsize,checkall);
______________________________________________________
'Create
an instance of an object');
instance_create(x,y,object0);
//use x and y variables for relative.
'Create
an instance of an object with a motion
//No
equivalent, but you can use the following code.
ID
= instance_create(x,y,object1);
with (ID)
motion_set(direction,speed);
’Create
instance of random object’
item[0]=object0;
item[1]=object1;
item[2]=object2;
item[3]=object3;
instance_create(x,y,item[floor(random(4))]);
//Assign
each object name to an array, then use the random statement to
choose.
'Change
the instance'
instance_change(obj,perf);
//perf(1
or 0)is whether or not to perform create and destroy events.
'Destroy
the instance’
instance_destroy();
'Destroy
instance at position'
position_destroy(x,y);
'Change
the sprite'
sprite_index=sprite0;
'Transform
the sprite'
image_xscale=value;
//horizontal scaling of
sprite.
image_yscale=value;
//verticle scaling if the
sprite.
image_angle=value;
//angle the sprite.
image_xscale=-1;
//flip the sprite horizontally, actual
code.
image_yscale=-1; //flip
the sprite vertically, actual code.
'Set
sprite blending'
image_blend=colour;
image_alpha=value;
//from 0 to 1, 1 being opaque.
'Play
a sound'
sound_play(sound);
//plays sound once.
sound_loop(sound);
//loops sound.
'Stop
a sound'
sound_stop(index);
//Stops the indicates sound. If there are
multiple sounds with this index playing simultaneously, all will be
stopped.
'If
a sound is playing'
if sound_isplaying(sound)=true
{
// actions here.
}
//If
you wish to use transitions with the following statements call this
statement first…
transition
kind=value;
Values for above as follows...
0 = no effect
1 =
Create from left
2 = Create from right
3 = Create from top
4
= Create from bottom
5 = Create from center
6 = Shift from
left
7 = Shift from right
8 = Shift from top
9 = Shift from
bottom
10 = Interlaced from left
11 = Interlaced from right
12
= Interlaced from top
13 = Interlaced from bottom
'Go
to previous room'
room_goto_previous();
'Go
to next room'
room_goto_next();
'Restart
the current room'
room_restart();
'Go
to a different room'
room_goto(room);
'if
previous room exists'
if room_previous(room)<>-1
then {
// actions here
}
//'room'
is constant variable for current room. Actual code.
'If
next room exists'
if room_next(room)<>-1
then {
// actions here.
}
//'room'
is constant variable for current room. Actual code.
'Set
an alarm'
alarm[0]=value;
//set 0 from 0 to 7 for alarm.
'Sleep
for a while'
sleep(numb);
//'numb' is in milliseconds.
'Set
a timeline'
timeline_index=timeline;
'Set
timeline position'
timeline_position=value;
'Display
a message'
show_message('Hello');
'Show
the game info'
show_info();
'Show
a video'
show_video(fname,full,loop);
//full and loop are either 1 or 0 for yes or
no.
'Restart
the game'
game_restart();
'End
the game'
game_end();
'Save
the game'
game_save(fname);
//fname is the name of the save file. Place it in quotes.
'Load
the game'
game_load(fname);
//fname
is the name of the save file to load. Place it in quotes.
'Replace
a sprite from a
file'
sprite_replace(ind,fname,imgnumb,precise,transparent,smooth,preload,xorig,yorig);
//
precise, transparent,smooth,preload are all 1 or 0 for yes or
no.
'Replace
a sound from a
file'
sound_replace(index,fname,kind,loadonuse);
//loadonuse
is 1 or 0 for yes or no.
//Kind is one of the
following...
0-normal
1-background
2-3d
3-mmplayer
'Replace
a background from a
file'
background_replace(ind,fname,transparent,smooth,preload);
//
transparent,smooth and preload are all 1 or 0 for yes or no.
_______________________________________________________
'If
a position is collision free'
if place_free(x,y)
{//for solid
//actions
here.
}
if !place_empty(x,y)
//for all
//actions
here.
}
'if
there is a collision at position'
if
collision_point(x,y,obj,prec,notme)
{
//actions here.
if
collision_rectangle(x1,y1,x2,y2,obj,prec,notme)
{
//actions here.
}
if
collision_circle(xc,yc,radius,obj,prec,notme)
{
//actions here.
}
if
collision_ellipse(x1,y1,x2,y2,obj,prec,notme)
{
//actions here.
}
if
collision_line(x1,y1,x2,y2,obj,prec,notme)
{
//actions here.
}
'If
there is an object at position'
if position_meeting(x,y,obj)
{
//actions here.
}
'If
the number of instances is a value {
if instance_number(obj)=value
{
//actions here.
}
'With
a chance perform the next action
if floor(random(value))=0
{
//actions here.
}
'If
the user answers yes to a question'
if show_question('Do
you want to do this?') {
// actions
here.
}
'If
an expression is true'
if (the expression)
{
// actions here.
}
'If
a mouse button is pressed'
if mouse_check_button(numb)
{
//actions here.
}
//
numb can be mb_none,mb_left, mb_middle,mb_right.
'If
an instance is aligned with a grid'
if place_snapped(value,value)
{
//actions here.
}
'Start
of block'
'End
of block'
'Else'
//All
above are part of if, else statements example...
if
x=50 {
hspeed=2;
vspeed=-2;
}
else
{
motion_set(90,1);
}
'Exit
this event'
exit;
'Repeat
next action'
repeat
(value) <statement>;
//example:
repeat (10) instance_create(x,y,object0);
'Call
the inherited event'
event_inherited();
’Execute
a piece of code’
//This is the icon that all coding is placed in.
'Call
a script'
script_execute(ind,arguments);
//
or call a script in code by the script name and the arguments in ()
beside it…
'Put
some comment'
//Enter a comment in code by
putting '//' followed by the comment.
'Set
a variable'
// Set a variable by either
using a built-in variable or by using your own.
example...
health=50;
lives=3;
name='Gordon';
//Use
'global.' for your own variables that are to be used by more than one
object...
global.name='Gordon';
//You
do not need to use global for built-in variables like 'lives', or
'score'.
'If
a variable has a value'
//Use an if
statement to check this. Example...
if lives=0
{
//actions here
}
'Draw
the value of a variable'
draw_text(x,y,global.name);
draw_text(x,y,lives);
_______________________________________________________
'Set
the score'
score=value;
'If
score has a value'
if score=value
{
//actions here.
}
'Draw
the value of the score'
draw_text(x,y,'Score:
' + string(score));
'Show
the highscore table'
highscore_set_background(back);
//set with background
image.
highscore_set_border(show);
//1 or 0 for yes or
no.
highscore_set_colors(back,new,other);
//set colours for background,new entry, other
entries.
highscore_set_font(name,size,style);
//set style to 0=normal, 1=bold, 2=italic,
3=bold italic.
highscore_show(numb);
//This actually shows the table, with numb
being the new score to add if it is high enough.
//Note:
there are many other controls for the high score table. These are
just the ones used in the drag and drop.
'Clear
the highscore table
highscore_clear();
'Set
the number of lives;
lives=value;
'If
lives has a value'
if lives=value
{
//actions here.
}
'Draw
the number of lives'
draw_text(x,y,'Lives:
' + string(lives));
'Draw
the lives as an image'
// no equivalent but
you can use the following code in the draw event. sprite0 is the
sprite image. Set 'a' in the 5th line to however far apart you wish
the images to be on the screen in pixels...
var
a;
a=0;
repeat(lives){
draw_sprite(sprite0,0,view_xview+a,view_yview);
a+=16;
}
'Set
the health'
health=value;
'If
health is a value'
if health=value
{
//actions here.
}
'Draw
the health
bar'
draw_healthbar(x1,y1,x2,y2,amount,backcol,mincol,maxcol,direction,showback,showborder);
'Set
the window caption info'
show_score=value;
//set to 1 for yes, 0 for
no.
caption_score=string;
show_lives=value;
//set to 1 for yes, to 0 for
no.
caption_lives=string;
show_health=value;
//set to 1 for yes, to 0 for
no.
caption_health=string;
_______________________________________________________
'Create
the particle system'
index=part_system_create();
//Assign to an index (variable). Must be used
in other functions.
'Particle
system destroy'
part_system_destroy(index);
'Clear
all particles from the system'
part_system_clear(index);
'Create
a particle'
index=part_type_create();
//Assign to an
index.
part_type_shape(index,shape);
//see manual for shape
types.
part_type_size(index,size_min,size_max,size_incr,size_rand);
part_type_color(index,color_start,color_middle,color_end);
//there
are other functions forparticles; these just cover the Drag and
Drop.
’Set
the color for a particle type’
part_type_color1(ind,color1)
//Indicates
a single color to be used for the
particle.
part_type_color2(ind,color1,color2)
//Specifies
two colors between which the color is
interpolated.
part_type_color3(ind,color1,color2,color3)
//Similar
but this time the color is interpolated between three colors that
represent the color at the start, half-way, and at the
end.
part_type_color_mix(ind,color1,color2)
//With
this function you indicate that the particle should get a color that
is a random mixture of the two indicated colors. This color will
remain fixed over the lifetime of the
particle.
part_type_color_rgb(ind,rmin,rmax,gmin,gmax,bmin,bmax)
//Can
be used to indicate that each particle must have a fixed color but
chosen from a range. You specify a range in the red, green, and blue
component of the color (each between 0 and
255).
part_type_color_hsv(ind,hmin,hmax,smin,smax,vmin,vmax)
//Can be used to indicate that each particle must have a fixed color but chosen from a range. You specify a range in the hue saturation and value component of the color (each between 0 and 255).
'Set
the life time for the
particle'
part_type_life(index,life_min,life_max);
'Set
the motion for the
particle'
part_type_speed(index,speed_min,speed_max,speed_incr,speed_rand);
part_type_direction(index,dir_min,dir_max,dir_incr,dir_rand);
'Set
the gravity for the
particle'
part_type_gravity(index,grav_amount,grav_dir);
'Create
secondary
particles'
part_type_death(index,death_number,death_type);
'Create
a particle emitter'
index=part_emitter_create(ps);
//ps is the index of the particle system. You
must assign this to an
index.
part_emitter_region(ps,index,xmin,xmax,ymin,ymax,shape,distribution);
//ps
is the index of the particle system. Index is the index of the
emitter.
'Destroy
an emitter'
part_emitter_destroy_all(ps)
//ps is the index of the emitter.
'Burst
a number of particles from an
emitter'
part_emitter_burst(ps,index,parttype,number)
; //ps is the index of the particle system.
Index is the index of the emitter. Parttype is the index of the
particle.
'Stream
particles from an
emitter'
part_emitter_stream(ps,index,parttype,number);
//You
must call the function cd_init();
before calling other Cd functions.
'Play
a CD'
cd_play(first,last);
'Stop
the CD'
cd_stop();
'Pause
the CD'
cd_pause();
'Resume
the CD'
cd_resume();
'If
a CD exists in the drive'
if cd_present()=true
{
//actions here.
}
'If
the CD is playing'
if cd_playing()=true
{
//actions here.
}
'Set
the mouse cursor';
window_set_cursor(curs);
//this
will set the cursor to a default setting (see manual for types)
to
have a custom sprite as a cursor use the following
statement…
cursor_sprite=sprite0;
//Change
sprite0 to sprite name This does not
appear in the help manual, but it is valid for GM6. When using it
though, set the actual cursor not to show else you will have two
cursors.
'Open
a web page in a browser'
execute_shell('http//www.somepage.com',0);
_______________________________________________________
'Draw
a sprite'
draw_sprite(sprite,subimage,x,y);
'Draw
a background image'
draw_background(back,x,y)
//single
image.
draw_background_tiled(back,x,y);
//tiled image.
'Draw
a text'
draw_text(x,y,string);
'Draw
text
transformed'
draw_text_transformed(x,y,string,xscale,yscale,angle);
'Draw
a rectangle'
draw_rectangle(x1,y1,x2,y2,outline);
//Outline is 1 or 0 for yes or no.
'Draw
a horizontal
gradient'
draw_rectangle_color(x1,y1,x2,y2,col1,col2,col3,col4,outline);
//Set col1 and col4 to the left color. Set
col2 and col3 to the second color.
'Draw
a vertical
gradient'
draw_rectangle_color(x1,y1,x2,y2,col1,col2,col3,col4,outline);
//Set col1 and col2 to the top color. Set
col3 and col4 to the bottom color.
'Draw
an ellipse'
draw_ellipse(x1,y1,x2,y2,outline);
//outline is 1 or 0 for yes or no.
'Draw
a gradient
ellipse'
draw_ellipse_color(x1,y1,x2,y2,col1,col2,outline);
//col1
is the color in the middle. col2 is the color at the
boundary.
'Draw
a line'
draw_line(x1,y1,x2,y2);
'Draw
an arrow'
draw_arrow(x1,y1,x2,y2,size);
//size is in pixels.
'Set
the color'
draw_set_color(col);
//See
the manual for colors.
'Set
the font'
draw_set_font(font);
draw_set_halign(halign);
//Can be set to fa_left, fa_center,
fa_right.
draw_set_valign(valign);
//Can be set to fa_top, fa_middle,
fa_bottom.
'Change
full screen mode'
window_set_fullscreen(full);
//Set to 0 for window, to 1 for fullscreen.
'Take
a snapshot of the image'
screen_save(filename);
'Create
an effect'
effect_create_below(kind,x,y,size,color)
//Creates an effect of the given kind (see
above) at the indicated position. size give the size as follows: 0 =
small, 1 = medium, 2 = large. color indicates the color to be used.
The effect is created below the instances, that is, at a depth of
100000.
effect_create_above(kind,x,y,size,color)
//Similar to the previous function but this
time the effect is created on top of the instances, that is, at a
depth of -100000.
//Following are
the effect kinds to use in the above statements...
ef_explosion
ef_ring
ef_ellipse
ef_firework
ef_smoke
ef_smokeup
ef_star
ef_spark
ef_flare
ef_cloud
ef_rain
ef_snow
Mark Overmars for making Game Maker (of course)
New Game Studios Representative
For the original suggestion that lead to this.
And many thanks to everyone who PM'd fixing my many errors. I wish I had remembered to jot down all your names but I rarely think ahead like that (shoot). But you know who you are so….thanks!