You can have other objects moving around the screen for you to collect (for points, to get to the next level, as a time challenge, ...) or avoid (like bombs, enemies, etc). 

Ideas:

• This could be for enemies, bombs, bullets, rewards, diamonds, shooting stars, etc
  
• Have an "enemy" move around the screen and you have to avoid it while going through a maze or just moving   
  
• Make the path invisible and the object will move along the set path like magic:
• set the visible of <object><"name"> to false
• Have it occur at set intervals

You can use the "Random" function to generate random locations, use relative numbers (+ or -) to move it in regular paths, a list of points, a path or a number of other creative ways to keep it exciting

1. Moving Objects - the Move command

Objects are moved using the "move" command.

    move <object> <name> to x,y

     or with optional values:

• from <start loc>
• relative <+ or -> loc
• in <time - seconds, milliseconds, ticks>
• without waiting

Examples:

• move graphic "bomb" to 100,200
• move button "box" from 50,100 to 100,100
• move button "box" relative -25,0      (this moves it to the left 25 pixels, this is the same as "set the left of button "box" to the left of button "box" - 25)
• move button "box"  to 100,100 in 5 secs
• move button "box" from 50,100 to 100,100 without waiting
• move the button "box" to the points of the graphic "rectangle"
• move the button "box" to the points of the graphic "path"

        (Experiment and try these on your own)

    Changing the Speed of the Objects

If you do not set the "time" in the "Move" command, you can change the speed of the object using the "moveSpeed" property. It can be any number between 0 to 65535 where the default is 200.

    set the moveSpeed to 20

2. The Set Command

Using the Set command, you can also do it this way by adding this code to the object that you want to move:

    on mouseMove
               if the mouse is down then  

               if the mouse is down then  

                    set  the loc of me to  the mouseLoc

               end if

         end mouseMove

 

3. Moving It To Set Points

You can program set point for it to go to by putting the points into a variable and using that variable in the move command

   put 100,110 & return & 150,200 & return & 20,400 & return & 200,20 & return & 250,300 into PList

   move button "box" to Plist

This will move the "box" to the points 100,110  150,200  20,400   200,20   250,300 which looks random

4. Moving it along a Set Path

You can "program" objects to move along a set path. You draw a path with the "Freehand" tool from the tools Palette (let's call it "path" - name it in the property inspector)

then you add the line (or a similar one):

• move the button "box"  to the points of the graphic "path"  in 5 secs

(See the file MovingAlongAPath for screenshots of how to do it)

You can set the graphic "path" not visible which makes the game more interesting

Sometimes you want to wait a few seconds before you have the player do something or another object move. For this you use the "Wait" command

for example:

    wait 2 seconds
    wait until the mouse is up
    wait until the seconds < alarmTime

    wait until the mouse is up

    wait until the seconds < alarmTime

    wait until the mouse is up

    wait until the seconds < alarmTime

Generally if you are going to wait any extended time, you should add "with messages". This allows other events to occur in the background while you are waiting

or example:

    wait 2 seconds with messages
    wait until the mouse is up with messages

    wait until the mouse is up with messages

    wait until the mouse is up with messages

    wait until the seconds < alarmTime with messages

(more to come...)

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