Gamemaker direction values. Syntax: speed; Returns: Real (single precision floating point value) Example: Mar 10, 2018 · The first 46 frames it returns 0 for mp_grid_path and no value is displayed for path_get_pointx/y (not 0 or any other number only the value for mp_grid_path) until frame 47 where they all return a value and never return 0. May 24, 2017 · But the way you´re doing it is wrong, because "round(point_direction(x,y,mouse_x,mouse_y)/40" can return 10 different values: round(0/40) will return 0, and round(359/40) will return 9. :v Decrease the given value with the given friction, if the value is smaller or equal the given friction it will set the value to 0. Syntax: direction; Returns: Real (single precision floating point value) Example: direction is a preset variable. Syntax: direction; Returns: Real (single precision floating point value) Example: direction is the variable that defines in which direction an object is pointing. This action is used to set a fixed movement direction. When I do this sort of thing, I reduce the direction values down to an integer with a range of 0 to 8 and use that for my switch statement, like thus: There is quite a different way for specifying motion, using a direction (in degrees 0-359), and a speed (should be non-negative). Assuming that all variables named facing have the same possible values, 180 * -1 is -180. Once param_value is less than or equal to its minimum value, we destroy the instance, ending the transition. For rotation, GameMaker uses angle values in degrees. Jul 16, 2024 · Right now, all the arrows start in the same direction. gravity_direction is one of the "built in" properties all instances have and can be used to set the direction of movement when the instances gravity is greater than 0. The direction is counter-clockwise. 375, or if the raw value is 0. 0 * -1 is still 0. I am trying to understand the logic behind Game Maker's point_direction(x1, y1, x2, y2) function, which takes the vector from (x1, y1) to (x2, y2) and returns the counter-clockwise angle it forms from the positive x-axis, in degrees. This basics video tutorial shows you what direction and speed are actually when you see in under the hood in GameMaker. I have statements to handle different player states (the code for the ascending Oct 13, 2022 · If we're entering a room, and not exiting, then param_value is reduced by param_speed. I'd like the function to get values between -90 and +90 inclusive when the pointer object is facing right. If you imagine a circle around your instance, and then imagine a point anywhere on that circle, to move to that point we need to move the object so many pixels in that direction so this function (when used with lengthdir_y()) gets the position of that point on Returns: Real Example: var _dir = point_direction(x, y, mouse_x, mouse_y); var _diff = angle_difference(_dir, image_angle); image_angle += _diff * 0. To make the game more interesting, let’s randomize the direction of the arrows when they spawn. This function returns the direction of a vector formed by the specified components [x1,y1] and [x2,y2] in relation to the fixed x/y coordinates of the room. 0 means to the right. direction = point_direction (x,y, x+hspeed,y+vspeed) Will give you a direction based on your hspeed and vspeed. 2=5) the calculated direction using the point_direction function. So for example 90 indicates an upward direction. Hey guys I'm working on a side-scroller game that uses a raytracing system to calculate the player's angle while he's standing on a sloped surface. Aug 1, 2016 · ///friction_value(value,friction) /* Thiago Jaqueta: feel free to remove this comment if you want, but it won't make any difference when compiling the game. 2 will mean that pushing the stick right will only start returning a value from 0 - 1 when the raw axis value is over 0. . For example, setting the deadzone to 0. ) Also there is the friction and the gravity and gravity direction. Note that this does not add to the instances current speed and direction (for that you would use motion_add()) but rather forces it to the new settings. It adds to the direction of motion and the speed of the instance a vector based on the position and speed of the other instance involved in the collision. That object will standard move the number of pixels in the variable speed in direction of the variable direction. May 13, 2023 · The assignment value for a true result from the comparison comes before the : and the assignment value for false comes after the : so that is how the computer knows what value to assign temp_x to. The problem is that i use 8 direction sprites, so if i try to walk close to direction change value it keeps going back and forth making the animation Mar 25, 2018 · It's probably the bulletspd being set to the wrong values for your right and down shots, or your parent object overriding the movement. 5, the return value will be 0. 2. Note that directions in GameMaker are usually calculated as 0° being right, 90° being up, 180° being left and 270° being down. Nov 6, 2018 · You can use lengthdir_x and lengthdir_y to get the x and y coordinates along a direction. Syntax: gravity_direction For example, in the image below if we want to get the direction from the player ship position to the enemy position so that we can fire a missile at the enemy then we would use this function (the exact code is in the example below the image): Syntax: point_direction(x1, y1, x2, y2) Aug 13, 2018 · speed = point_distance(0, 0, gamepad_axis_value(dvc, gp_axislh), gamepad_axis_value(dvc, gp_axislv)) * max_speed; //gets the magnitude of the combined left stick input vector and multiplies it by a max speed, assigns value to speed direction = point_direction(0, 0, gamepad_axis_value(dvc, gp_axislh), gamepad_axis_value(dvc, gp_axislv)) //gets the direction of the combined left stick input Dec 6, 2021 · In one of your code snippets, facing can have a value of either 0 or 180. (People usually say to avoid built-in variables like speed) What I need: - object travels in direction x. Essentially, only in even numbers, not odd numbers. The minimum and maximum orientation values default at 0 but these values can be changed to randomise the orientation following the standard GameMaker directions of 0 degrees being right, 90 degrees being up, 180 degrees being left and 270 degrees being down. Aug 29, 2020 · hi, very straight forward how do I get a normal vector direction to my player direction? draw_text(924, 220, "point direction >" + Since (keyRight - keyLeft) works, and positive X values are to the right of the origin, why don't we want (keyDown - keyUp) to be positive to go up, since the positive Y values are above the origin. Feb 18, 2020 · Using round(), we are rounding up or down (i. y to reference them from other objects. (Internally this is changed into values for hspeed and vspeed. But for some reason when I use the point_direction function to return the actual angle to rotate the player object in, some strange behavior occurs with the gravity and hspeed/vspeed. Your formula doesn't align with the values you expect the variable you store the result in to have. We use that value to determine the current octant by using the switch function to set the Object's sprite in 8 directions by dividing the value by 45 creating 8 cases. If you set them to the same value the Sep 15, 2019 · Hi, I'm trying to get the pointing direction of an object to be in increments of 2. gravity_direction. If you set them to the same value the Set Particle Direction. 9, then the return value Hey guys! I need some of your math tricks. You supply the unique ID value for the type to set the size of (as returned when you created the type with the action Create Particle Type) and then give a range of initial starting directions, then the increase amount and finally the "wiggle". Notice something? Those two vectors are the same! This is yet another demonstration that a vector has no position, only direction and length, and we can draw those vectors relative to each other around a local [0,0] axis: This means that a 2D vector is defined by two values, an "x" and a "y" position relative to the local [0,0] axis. GameMaker has a number of dedicated functions that can be used to detect both analog and digital controls from multiple connected gamepads. A solution to what you want to do is the following. When an instance is placed into a room, it will always have a position that can be described in terms of x and y. See, I want to use the built in object variable "direction" since it looks easy, but we can also make our own direction script. So if the min value is 0 and the max value is 10, it will go from 0 to 10 when exiting a room, and from 10 to 0 when entering a room. As you will see below the function random gives a random number smaller than the indicated GameMaker also has a number of vector-based functions, listed below: point_direction; point_distance; point_distance_3d; distance_to_object; distance_to_point; dot Sep 15, 2017 · Their x, y, direction, x previous, y previous, are all NaN. So whenever an object is facing a target, the direction value should be in multiples of 2. @TheSly is right, you usually would only need one object, and when you create it, just set a speed and direction and image_angle most of the time. but i was watching a tutorial where a guy multiplied it by negative 1. now i understand that instantly makes it a negative number. Force is a cumulative value and will be added on to the speed vector each game frame, so a gravity of 1 will add one to the speed Here you can indicate a precise direction. 999~ and as such, it will almost never return a value that is a perfect interval or 45 degrees required for the switch statement to work. I'm attempting to find the nearest instance of a spring object—from the current spring object that the player object is colliding with—in the direction of the player's input, and then move in that direction. Without seeing more code, my guess is that you're not setting the direction correctly when the bullet is created. Note that directions in GameMaker are measured in degrees, with right being 0°, up being 90°, left being 180° and down being 270°. Each instance in the game will have its own direction value. what i Gamepad Input. Syntax: speed; Returns: Real (single precision floating point value) Example: Jul 14, 2022 · Howdy. 1; The above code will get the direction from the instance to the mouse cursor, then get the difference between that angle and the current image_angle, using this value to gradually rotate the instance towards the mouse. As are its goal x and y coordanates. This action is used to set the particle direction, which can be static or set to increase / decrease over time. When you create the bullet, use "var bullet =instance_create_layer()" And then just use "with(bullet){ direction =} " and set the direction like that. the help notes say 90 is up, 0 is right 180 is left and so on. Set Direction Fixed. Looks like the direction is just set at 0(moving straight to the right). 05, and friction is set to 0. is there any way I could make my character move forwards, backwards, left and right in the direction which my sprite is facing? the direction stays the same while the view_angle is rotating, I Jul 21, 2023 · For the rotation, colour and alpha arguments, I’ve passed their default values: 0 for rotation, -1 for colour so it’s unchanged, and 1 for alpha so it draws completely opaque. May 10, 2019 · Every room in GameMaker uses this grid of x and y values. Say, if you'd have 2 nets and you tell the ball object to go to the obj_net, it will go to the first created one. This is the result: How To Rotate A Sprite. The problem is that i use 8 direction sprites, so if i try to walk close to direction change value it keeps going back and forth making the animation flick. To clarify, my code looks like this: Dec 17, 2023 · That will return a float that has any value between 0 and 359. Syntax: motion_set(dir, speed); Aug 25, 2013 · x and y values are built-in variables, for a particular object you can use [instanceID]. e. The direction function checks from (0, 0) as we aren't using room coordinates, and instead we want it to evaluate as a direction from 0° to 360° based on the variable values. I tried clamping with a negative value, as well as trying to set the angle to 360-point_direction() but neither worked. point_direction. The next section of code stores a value for the actual movement speed in a variable and then gets a direction using the _hspd and _vspd values, which can be -1, 0, or 1. It works with both positive and negative values. 8=6 & 5. This will be done in a similar way to the movement, only the returned axis values will be used to set a direction which will in turn be used to change the image_angle of the instance. The minimum and maximum direction values default at 0, which means that the particle will move to the right with no variation, but these values can be changed to limit the direction of movement following the standard GameMaker directions of 0 being right, 90 being up, 180 being left and 270 being down. 0=right, 90=up, 180=left, 270=down Speed You can assign such a default value to a parameter using the equal (=) sign, making it an optional variable: function move(spd, dir = 90) { speed = spd; direction = dir;} If the dir argument is not passed in when calling the above function, then its value will default to 90, moving the instance in an upward direction. Box2D direction = GameMaker direction – 90. Note that setting the speed and/or the direction, will also modify the values of the hspeed and vspeed variables, and that gravity, gravity_direction and friction can all modify the value of this variable when they are used in your games. These functions work similar to the Device Inputs, in that you can detect up to four different XInput gamepads that are connected (and up to 8 DirectInput gamepads) and deal with the input from each one using the same functions. 2, the return value will be 0, when the raw value is at 0. I have a few questions. Jan 15, 2013 · Please note that Game Maker will grab the first created instance of the object this way. The point (0,0) is in the upper-left hand corner of the screen, and the units across the x and y axis are measured in pixels. You’ll need to compensate for this if you ever need to convert a GM Object’s direction to a Box2D fixture’s direction: GameMaker direction = Box2D direction + 90. (inv_x,inv_y) Alarm[2] is the code in which the object moves. Feb 2, 2019 · Ideally, it'd be preferable to use point_direction which afaik only shows an angle value between 0 and 359 inclusive. Here's one example to create a bullet shooting to the right: Jan 31, 2018 · Put all the cats in the list into the priority queue with the value set to the cat and the priority set to the cat's corresponding property value. This variable can be used to get (or to set) the angle of the instances fixture in degrees, similar to setting or getting the image_angle. x, other. If you want an arbitrary direction, you can type random(360). If you set them to the same value the particles will all be created with the same Note that setting the speed and/or the direction, will also modify the values of the hspeed and vspeed variables, and that gravity, gravity_direction and friction can all modify the value of this variable when they are used in your games. You can set and read these variables to specify an arbitrary motion. If you want the object to rotate, you need to do image_angle = direction or image_angle = point_direction (x,y, x+hspeed,y+vspeed) The minimum and maximum direction values default at 0, which means that the particle will move to the right with no variation, but these values can be changed to limit the direction of movement following the standard GameMaker directions of 0 being right, 90 being up, 180 being left and 270 being down. x and [instanceID]. Pull maximums from the priority queue with ds_priority_delete_max() and remove the corresponding entry in the unassigned list using ds_list_delete() with ds_list_find_index() . Related to direction is image_angle, which is a built-in GML variable that is used to rotate the sprite belonging to an instance. You first specify the particle type ID value (which should be the same as the value used when you created the particle using the Create Particle Type action) and then you can set the gravity force and the direction. var pdir; pdir = point_direction(other. Now, if the bool is true , temp_x gets assigned to 32 , and if it's false , temp_x gets assigned to (room_width - 32) . The available directions are indicated by the different buttons in the action block, and clicking on any of them will set that direction. However, shouldn't this crash the game? This function sets a new direction of movement and a new speed to the instance running the code. A very convenient and fast way is to u Hello everyone! So, i'm having a problem with point_direction which keeps the returning value swinging when i'm moving my character around. Note that directions in GameMaker are usually calculated as 0° being right, 90° being up, 180° being left and 270° being down, and that the gravity and gravity_direction variables can modify the direction value when they are used in your games. Very similar to simply changing direction by having direction+=2. This ranges from 0 to 360, going anti-clockwise with every increase. Direction from 0° to 360° (values outside of the range will be wrapped). Hello everyone! So, i'm having a problem with point_direction which keeps the returning value swinging when i'm moving my character around. Remember that you may need to reset the position/orientation values when the sequence has finished playing! We have attached a very simple sample below which just shows the above two functions being used (it does this within the Sequence's Create event function), so you can try that on your system and then use the information here to refactor phy_rotation. I feel like I am missing something obvious, but I can't figure it out. Example: The above action block code sets various instance properties related to movement: gravity direction is set to down (270°), gravity force is set to 0. You supply the direction value from 0° to 360° - where right is 0°, up is 90°, left is 180° and down is 270° - and you can also set the relative flag to add/subtract the value you give to the current direction. The problem is that i use 8 direction sprites, so if i try to walk close to direction change value it keeps going back and forth making the animation Jul 2, 2020 · With the movement done, we now need to make the player instances turn to face the direction that the right stick is pointing in. 2 - so for example, when the raw value is 0. trying to understand the direction built in variable a bit better. Note that directions in GameMaker are usually calculated as 0° being right, 90° being up, 180° being left and 270° being down, and that the gravity and gravity_direction variables can modify the direction value when they are used in your games. (Let's say it's Nov 28, 2023 · In this video we are learning how and when to use Game Maker Studio 2 GML Visual Block which is called:Set Direction VariableThis block is part of the "Movem Feb 16, 2020 · i have a quick question. We can do this by setting the direction to a random value between 0 and 359 degrees: direction = random_range(0,359) Adding Player-Arrow Interaction lengthdir_x. 5. Mar 25, 2017 · You don't need to define the direction of the particle type to make the effect move in a certain direction. I'd suggest using the shot instance that moves in the given direction at a specified speed, then you can use this instance to create the particles as it moves. May 13, 2022 · So, i'm having a problem with point_direction which keeps the returning value swinging when i'm moving my character around. In another code snippet, you're multiplying facing by -1. This is an angle between 0 and 360 degrees. It indicates the direction the object is facing (although to make its sprite visibly turn to face the direction, you'll need to use image_angle = direction). This function is used to get the x component of a position "len" pixels from the starting point and in direction "dir". speed); if speed > 8 speed = 8; The above code would be called in the collision event with another object. y, x, y); motion_add(pdir, other. However note that in the physics world rotations are calculated in the opposite way to the normal GameMaker game world, meaning that vector functions like point_direction() should have their return values modified (simply making positive to Nov 17, 2016 · I'm making a top-down game in which my player is facing to the top of the screen at all times, and instead the floor is rotating when I move the mouse. Firstly: I have the sneaking suspicion that inv_x/y are being set to NaN, and then it tries to move there. cvmipu adynaqb lnmt ixv edz xdk nvgbdma dypdy nyz hhyjdhw
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