Execute Script With this action you can execute a script that you have previously added to the game resources, passing a maximum of five arguments to it. For more information on scripts you can go to this section of the manual - Advanced Use: Scripts. Comment Use this action to add a line of comment to the action list.
A comment is usually a short sentence to remind you of what a particular set of actions is meant to do and a comment in itself does not actually affect the normal running of GameMaker: Studio. However, even though it does nothing, it is still recognised as an action and can be for example placed in a collision event so that it will trigger that collision even when no code is present.
Variables are an essential part of game making. They are the base on which almost all a game is built as you need them to hold the values that govern the behaviour of your objects, for example, score, lives and health are all internal variables that GameMaker: Studio creates for you see Variables And Variable Scope.
However, in-built variables are certainly not enough to build your game around, and so you will need to use the following actions or code to set, test and change variables as your game progresses.
Set Variable This action sets a variable to a value. If that variable does not exists then it creates it and gives it the specified value. This action can also change the many in-built variables that GameMaker: Studio has. To use it you specify the name of the variable and the new value it should have.
Bear in mind that when you check the Relative box, the value is added to the current value of the variable, but please note that this can only be done if the variable has already been created and has had a value assigned to it! Test Variable With this action you can check what the value of a particular variable is. If the value of the variable is equal to the number you have provided then the question returns true, otherwise it returns false.
You can also indicate that the check should be whether the value is smaller than or greater than the value specified and you can even use this action also to compare two expressions or variables to see if they are the same as, greater than or equal to each other. Draw Variable With this action you can draw the value of a variable at a particular position on the screen.
Note that this can only be used in the draw event of an object. Note that the assignment of the instances to the instance id's changes every step so you cannot use values from previous steps. Also please note that instances that are deleted will remain in the list until the end of the step. So if you are also deleting instances you need to check whether the instance still exists.
Let me give an example. If it does not exist, the special object noone is returned. When multiple instances are at that position the first is returned. The following functions can be used for creating and destroying instances. Asked 8 years, 9 months ago. Active 3 years, 9 months ago. Viewed 30k times. Improve this question. Add a comment. Active Oldest Votes.
This functions returns the number of instances of a object that exist in the current room. Improve this answer. Kromster 9, 4 4 gold badges 50 50 silver badges 63 63 bronze badges. Magnus Magnus 1. I don't see it. Example: if room! Philip Allgaier 2, 3 3 gold badges 23 23 silver badges 32 32 bronze badges.
I also want my click sound to play whenever the user presses down the mouse button, no matter where the cursor is. Then from the Main1 tab, again drag the Play Sound action and attach the click sound you loaded into the project at the beginning. Lastly we want to check for the conditions to end the game. From the Control tab, drag over the Test Instance Count icon and set the object to Ball and count equal to 0. This will runt he next action if the number of Balls in the level is equal to zero.
We want to do more than one action for this case. For these kinds of action, the order DOES matter. Download Game Maker. Completed Tutorial 1. Sound Now for audio. We need a click sound and an explode sound. Game Maker has some premade sound effects, which you can browse and preview by clicking the green play button.
Or, I like using a program called sfxr to make sounds you can directly download it here for PC or here for Mac. Generate some cool sounds and export them as WAVs. We load music the same way as sound effects.
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