Later, we can come back and draw some animated sprites that resemble more than a box. If we set this then we are telling the view camera to only move by a specific amount each game frame, so that if we set it to (for example) 5, then the view camera will follow the player only 5px per game frame. Make sure youve unticked uses physics as this will make things more complicated. Step 1. In the main editor window, you have a bunch of tools in the top right corner: The one we are interested in here is the Play Animationbutton . This can be really useful and can give a nice "catchup" effect if the instance being followed moves faster than the values given, but for our game we want the camera to alwaysstay centered on the player, so we leave it at -1, which is essentially telling the camera view to move "instantly" to the instance being followed position every game frame. We need to add a Create Eventto our bullet. on resource name and call the room "rm_game". This is the Tiles and Views Section of our "My First Game" tutorial, and if you've done the first three The next step in our GameMaker Studio 2 tutorial is where things start getting really fun. Note that if we want to go to a specific room without following the order of the resource tree, then we would use: The Room Gotoaction lets us go to any room in the resource tree (you can press to open the manual and see what all the other room actions are). in this series will see us creating a new object for the enemy and having it react to the player and the player bullets You've made it to the Enemies Section of our "My First Game" series of tutorials, and you're doing well! You can hold down the middle mouse button If you do want to make an idle animation, however, you can simply drag another sprite next to the first one in the timeline and then set the FPS in the top left. We could, for example, have created a "BulletsLayer" in the room editor, and then used that to explicitly say we want the bullets on a unique layer - the action for that would have been simply: You can see there that if a layer has been created in the room editor, we can use its name as an identifier to target it within this action (and a few others). By default GameMaker Studio 2will use a draw colour of white for everything, but at various points in your game you may wish to change this, and it's good practice to explicitly set the draw colour before drawing anything, so that is what we are going to do now as well as draw the text itself. section of the We have our enemy spawn object now, but we don't have anything to re-spawn the enemies when there are none left, so for that we are going to create a controller object called obj_spawner. If you dont have any sprites of your own, you should be able to download some from the web. Now drag an instance of the controller object obj_spawnerinto the room and run the game. We need to style the text on the screen to make it more readable and nicer to look at and for that we'll start by adding a new Font Resource. This is the equivalent of a scene in Unity. Once the level has been drawn, we need a character to explore it. Note that in the Font Editor you have a preview window that by default shows "Hello World". Currently the player instance is on the "Instances" layer, and we need to add a new layer for our bullets, so click the New Instance Layerbutton to create a new layer and name it "BulletsLayer" (to rename a layer, simply slow-click twice on it). You can then simply draw onto your grid to create your level layout! You can have multiple view ports active in a room (up to 8, starting at 0, so it's view_camera[0 7]) and can assign a camera to each one, so referencing (for example) view_camera[3] will mean you are dealing with the camera assigned to view port[3]. section Each loop is called a game frameand so we call the speed at which a game runs the game Frames Per Second (FPS). In this case we have named the variable "dir" and in future actions that will be what we use to refer to it. A temporary or local variable is simply defined as one that is "local" to the script or event that is using it. , then click setting is pretty smart, and it does a good job, so I wont change it for my sprite. With that done, we are now ready to create an Object Resourcewhich will use our sprite. statement. Console licenses are much more expensive however, costing $799 each, or $1,500 for all three. Instance variables are valid for any event in an instance and can be changed or read in other action blocks. The action can be found in the Mouse and Keyboardsection of the action toolbox and you should drag it into the action workspace abovethe Assign Variable action: Note that when you drag it near the existing action an area will be highlighted indicating that it can be placed either above or below the action in the chain (in the image above we place it above), and once you drop it you will see that it is connected to the Assign Variable action like this: That square chain on the left means that the "if" action will be called and thenthe Assign Variable action, but that they are independent of each other. By the end, youll have built your first 2D platform game! No p. This should be set to 3232. So, in our actions we are setting the alarm[0] to 60, meaning that it will subtract 1 from 60 every game frame until it reaches 0 at which point any code in the alarm[0] event will run. The first is dropping it onanother rom (the room being dropped on is highlighted), which means that you want the selected room to become a "child" of the other room, and the other is dropping it over a room (where a bar is highlighted above the room), which will place it in the room order. sections, but for now it's enough for us to test and get a feel for how everything plays. A sprite is an image that is combined with certain properties which is then used in the game to represent something. We coulddo this by changing the amount of pixels that player moves when the arrow keys are pressed, along with changing the bullet speed and the timer instance variable we use but there is an easier way! to This is because when you don'tadd a general Draw Event to an object yourself, GameMaker Studio 2will automatically assume you want to draw the sprite assigned to the instance along with any transforms (like colour or alpha or scale) that you have added. Keep in mind that instance variables need to be initialised before use, and so that is why we have them in the Create Event, as that event is run for every instance the moment it is created in a room and the event only runs onceso the variable is only set once at the start. Its also useful if you want to name two different things the same name, like We currently have two instance layers (one for the player and the enemies, one for the bullets) and a background layer. All instances of objects have a number of built in variables that are related to how the assigned sprite will be drawn. However it's missing one or two things to take it from a prototype to a finished game, one of which is a scoring system which is what we'll cover in the next This layer will be used to show the background tile sprite that we added previously. We need to let the player control time, so lets have them slow it down or speed it up, but only if its below or above a certain amount. GameMaker Studio 2 The You will then be presented with two options: New Drag and Drop Project; New GameMaker Language Project; Drag and Drop is the powerful visual scripting language that permits you to code a project using chained action blocks, while the GameMaker Language (GML) is the propriety . we'll expand on what you've learned here by adding bullets and other world items into our Arena Shooter game. section Learn how to make a game with our free game engine for beginners and professionals alike. If both of those are true, then we increase time by 0.05. In this So, the next However before we get to that, you should fix the tilemap layer so that it covers the whole room: To prevent the issue with the huge window we need to tell GameMaker Studio 2to only show a portion of the game room using a camera view. section In this short section Im using a pretty starfield. The goal of this step is to make a simple game to test if it will even work. First thing to do is create a new Spriteresource (right click on the Sprite resource folder and select Create). section These dictate how close to the edge of the view the instance needs to be before the view camera will move to follow it. We now want to add "spread" to the bullets so we use this action along with the function random_range to add or subtract up to 4 to the direction. About the author: Ethan Scully is a writer, editor, and game developer who manages Career Karma's content partnership initiatives and is currently based in Istanbul. We're using the mouse position global variablesfor the moment as the position to create the instance just so that you can see something being created in the test game, and we are creating it on the layer "Instances". Origin Throughout this tutorial we will build a small "arena shooter" - a top down action game with a player, some enemies and lots of bullets. We had added in enemy spawn objects but we don't need them anymore so select them and delete them (/ + to select, and to delete). Its up to you how you want to progress, and hopefully, this tutorial has equipped you with enough to get started and has given you the desire to learn more in the game industry. Care must be taken when using this action, though, as if there is noroom after the current one (ie: the room using this code is the last one in the Resource Tree) we will get an error which will cause the game to close. You should be able to move freely around the screen. Let's see how that works in practice by adding an action As mentioned above, the Step Event is run each and every game loop, so anything we put in here will happen once per game frame (30 times in a second for a 30 FPS game, 60 for a 60fps game, etc). Make sure to tick relative so that these positions are relative to the player object. and rapid development: Now, its time to code. Note that we are not setting the "speed" value directly, but instead will be using this custom variable to set the speed. which will be a completely empty object with physics once again disabled. That said, for those that do want to add some custom logic, there is a GameMaker Language that affords slightly more flexibility. as general containers for anything that has code attached to it. With this sprite we need to change the origin. First We are going to go ahead and create an object now. Now for the action that will create our bullet if the mouse button is held down, which is the action Instance Create(from the Instancesaction library). Make Your Own . However, all drawingmust be done in a draw event, and in general placing draw functions in any other event will notwork. F5 The number of game frames in a second is what gives us our Frames per Second(FPS) value for the project.
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