- #Docs2 motion planning gamemaker how to#
- #Docs2 motion planning gamemaker update#
- #Docs2 motion planning gamemaker code#
This function sets the speed and direction of the instance so that it will move towards the point (x, y) as defined by the first two arguments. The move_random() function moves the instance to a random location in the room that is an intersection on the invisible grid defined by the hsnap and vsnap arguments.Īs with move_snap(), move_random() has the same issues to be aware of with grid offset and sprite offset.
The results from move_snap are based on the instance’s x and y, so how it ends up looking will depend on the instance’s sprite’s origin. To adjust, you simply need to offset the positions of the instance after calling move_snap: You want cells in the invisible grid to align with the squares of the chess board, but because of the border, there’s an offset because the border is not a width that aligns to the grid. Say you have a chess board in the room, but there is a border around the chess board. If the instance is not aligned to the grid, this function will move the instance to the nearest location that is a grid intersection.Ī common problem you may encounter with this function is if you have a grid within the room but that does not take up the entire room. If an instance is at a position such that instance.x and instance.y are both mulitples of 32, then it is aligned to the grid. You want your instances to align to this grid. Let’s say you want to base your game off of a grid of 32×32 pixel cells. Moves the instance to the nearest position in the room, aligned to an invisible grid of “cells” of a size defined by the hsnap and vsnap arguments. There are a number of GML functions built in to GameMaker, whose names start with “move_” that are good to be aware of.
#Docs2 motion planning gamemaker update#
You can also change the values to update the starting point (such as if the player reaches a new save point.) GML move_ functions Useful if you need to return an object back to where it started from. The x and y coordinates of the instance when it was created. Comes in handy when you need to compare where an object is to where it was, or if you’re trying to handle collisions with high-speed objects (see below), or to “undo” a position change to the old position in the previous step. The former x and y coordinate of the instance, from the previous step. The game will stop scrolling at the edge of a room, showing no space outside of it. However, positions that lie outside the room will never be displayed in the game. Stuff still exists when it goes off-stage, and things can happen to that stuff. Think of the room as the “stage” of a theater that the player views the area outside the room is “off-stage”.
#Docs2 motion planning gamemaker code#
Indeed, they continue to exist and function, unless you code them otherwise, and of course they can come back inside the room. The left-top corner of the room is (0,0), and the right-bottom corner of the room is (room_width, room_height).Ĭoordinates outside the room are valid locations - objects don’t automatically cease to exist or stop functioning just because they are outside the room.
These are in reference to the absolute x and y coordinates in the room. The current x and y coordinates of the instance. This isn’t absolutely everything there is to know about motion, but it’s a great overview to start with, and covers everything I’ve learned with respect to motion in GameMaker Studio. Learning how these work will help you make better games. There are a number of possible approaches to handling position and movement.
#Docs2 motion planning gamemaker how to#
Learning how to program motion and control it effectively is one of the most important parts of a successful game.
Nearly every game has moving things in it, and how they move is a vital part of the game. Motion is critical to just about any video game.
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