Lengthdir_x - hpgDesigns/hpgdesigns-dev.io GitHub Wiki
Notation
Description
.]] Gives the
horizontal component of a vector with the given length and direction;
this can be thought of as the terminal x-coordinate of a vector at
(0,0). It may help to think of the input as the depiction of a right
triangle, where the length is the hypotenuse and the direction is the
angle.
Bear in mind that the return value is only the horizontal component of the input vector; you will generally want to add this value to a coordinate.
This function is generally used with its sister function lengthdir_y().
Parameters
- len: length of the vector; the hypotenuse of the right triangle, or the distance between (0,0) and the desired point
- dir: direction in degrees of the vector; the angle of the right triangle, or the direction from (0,0) to the desired point
Return Values
double: Returns the horizontal component of the given vector.
Example Call
// Create a circle of ten coin objects 64px from this object
for (int dir = 0; dir < 360; dir += 36) // Loop through all directions from 0 to 360 in increments of 36, so 10 directions
{
instance_create(x + lengthdir_x(64, dir), y + lengthdir_y(64, dir), obj_coin); // Create a coin 64px out in each direction
]
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