Game Maker
Day 2
Making a Maze Game
Pop Quiz
• Make a Sprite (spr_HeroLeft) using the
koala_left.gif image
– TechInTheWorkplace\assignments\resources\Chapter
7\koala_left.gif
• Make an object (obj_HeroLeft) using the
spr_HeroLeft
• Create Events (Up, Down, Left, Right) for
obj_HeroLeft so it can move about the screen
• Make a room and add the hero to the room
• Demo your room and hero running around
A Little Design
• Sketch a simple maze.
• What objects are needed?
• How do you want them to behave?
Today
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As a class we will…
Give an overview of a maze
Create a wall
Create a goal
Create a hero that will face the direction it
is running
• From there you will create a maze
Maze: The Room
Needed Objects
• Hero
– You can load from Game Makers set or
– Go to the assignments folder under Resources Walls
– Going around the room and in between
• Finish
– The hero will reach (collide) this when finished.
• Treasures
– Possibly tie to points. (Can look up Score Actions.
Might click the relative box to add points to a score)
• Enemies
– An extra.
– Maybe add weapons for getting rid of enemies
Behavior
• Walls
– Solid
• Hero
– Move with pressed keys. Left, right, up, down and stop.
– When it hits (Collides with) a wall, it stops
– Extra
• Gather treasure and get points, run into enemy and lose points, finish the
maze and win
• When key pressed, shoot.
• Finish
– Solid
• Extras
– Treasures
• Disappear when Hero runs into you.
– Enemies
• When shot, disappear and add points to the total
• Move towards the Hero and around the walls
Start by gathering sprites
• Hero
– Person, animal, …
– Load sprites for each direction. Up, down, left, right,
stop
• Wall
– Brick
• Finish
– You pick
• Extra
– Treasure
– Enemy
I have added sprites
to the Assignments
folder under
Resources. There
are Koala sprites in
chapter7. I’ll use the
Koala in my example
Getting and Fitting Sprite
Click on
Load
Sprite
and pick
a sprite
Notice the
Width and
Height are
both 40. It is
best to have
the sizes as
multiples of 2.
So we will
change this to
32. To do this,
click on Edit
Sprite
Click on the
pacman
Select Transform ->
Stretch Images
Change the Width
and Height pixels
to 32.
Click the
Green Check
Click OK
Load the following sprites:
Hero: Left, Right, Up, Down, Stop
Wall
Finish
Click
OK
Giving Direction Pictures
• For this example I’ll
use different sprites
for right, up, down
and stop.
• When the Hero object
is created we will
make it use the
correct sprite
depending on the
direction it is
traveling.
Making the Wall: Again Stretch it to 32 x 32
Click on
Load
Sprite
and pick
a sprite
Notice the
Width and
Height are
both 40. It is
best to have
the sizes as
multiples of 2.
So we will
change this to
32. To do this,
click on Edit
Sprite
Click on the
pacman
Select Transform ->
Stretch Images
Change the Width
and Height pixels
to 32.
Click the
Green Check
Click OK
Click
OK
Click on the
pacman
Now the Finish
Click on
Load
Sprite
and pick
a sprite
Notice the
Width and
Height are
both 40. It is
best to have
the sizes as
multiples of 2.
So we will
change this to
32. To do this,
click on Edit
Sprite
Select Transform ->
Stretch Images
Change the Width
and Height pixels
to 32.
Click the
Green Check
Click OK
Click
OK
So far
• Created sprites for the following
– Hero
– Wall
– Finish
• Now it’s time to make the objects
Click ‘Create and
Object’ button
Wall Object
Name the object
obj_wall
Use the pull down
menu and select
spr_wall
Make the object
solid.
No Events???
The wall will just sit there, so it does not need any events.
Click ‘Create and
Object’ button
Goal Object
Name the object
obj_goal
Use the pull down
menu and select
spr_exit
No Events???
The goal/exit will just sit there, so it also does not need any
events.
Hero Object
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Behaviors
Hit left arrow, point left and go left
Hit right arrow, point right and go right.
Hit down arrow, point down and go down
Hit up arrow, point up and go up
No key hit, point stop and go stop
Hit a wall, point stop and go stop
Hit the goal, Say you win, end the game.
We’ll start with coding the left arrow
Name it
obj_hero
Hero Object and Point Left when moving
left
Click on Create
Object
Drag Change Sprite into
the Actions window
Select a sprite:
Pick
spr_heroRight
This will be the
starting direction
of the Hero
Click on
Keyboard
Select
main1
tab
Select
<Left>
OK
Add Event
Click on the menu
and select the left
facing sprite.
spr_heroLeft
Go Left
Drag the Move Fixed
icon into the Actions
window
Select the move tab
Select the left
arrow
Give it a
speed of 5
Click OK
Other Key-pressed Events
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Left
Right
Up
Down
Stop (‘No key’ being pressed, or ‘Any Key’
begin released)
Hit the wall
Click on Collision
Pull down to
obj_wall
Add Event
Change to the stop sprite
Main1 tab
Drag the change
sprite to the event
window
Select the stop
sprite
Stop the Hero
Drag the Move Fixed icon
into the Actions window
Select the move
tab
Click on the
no direction
button
OK
Keep going
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Now you have the beginning tools to
Create a maze (Using the walls)
Create a goal
Create a hero
Now continue to work on the maze.