MouseInfo Class Reference

Classes
struct	Down
struct	Over

Public Member Functions
void	transform (const jngl::Mat3 &transformationMatrix)
	Applies the transformationMatrix on the mouse position.
std::span< Over >	cursors ()
	Only returns mouse cursors that are currently not over something.

Friends
class	jngl::Window

Detailed Description

Definition at line 18 of file MouseInfo.hpp.

Member Function Documentation

transform()

void transform

(

const jngl::Mat3 &

transformationMatrix

)

Applies the transformationMatrix on the mouse position.

Let's say you want to move the move position in MouseInfo 50 pixel to the right, you'd do:

jngl::Mat3 matrix;
matrix.translate(jngl::Vec2(50, 0));
jngl::mouseInfo().transform(matrix);

If (mousePos.x, mousePos.y, 1) is and transformationMatrix is this does:

It uses the inverse of the passed matrix, because normally transformations are for rendering where world coordinates are transformed into screen coordinates. The mouse position is in screen coordinates and you want to transform it to world coordinates. This is useful if you have a camera matrix and use it for rendering (applying it on jngl::modelview()) and here.

Friends And Related Symbol Documentation

jngl::Window

friend class jngl::Window

friend

Definition at line 82 of file MouseInfo.hpp.

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The documentation for this class was generated from the following file:

• jngl/MouseInfo.hpp