camera.c File Reference

#include "camera.h"
#include "bool_utils.h"
#include <cglm/cam.h>
#include <cglm/types.h>
#include <cglm/util.h>
#include <cglm/vec3.h>
#include <math.h>

Include dependency graph for camera.c:

Functions
void	camera_init (Camera *cam, float distance, float yaw, float pitch)
	Initializes the camera with default values.
void	camera_update_vectors (Camera *cam)
	Recalculates front, right, and up vectors from yaw and pitch.
void	camera_build_keyboard_input (Camera *cam)
	Converts boolean keyboard flags into move_input.
void	camera_fixed_update (Camera *cam)
	Performs one fixed-step physics update.
void	camera_process_mouse (Camera *cam, float xoffset, float yoffset)
	Processes mouse movement to update target orientation.
void	camera_get_view_matrix (Camera *cam, mat4 view)
	Generates the 4x4 view matrix for this camera.
void	camera_process_scroll (Camera *cam, float yoffset)
	Processes mouse scroll events to apply physical impulse.

Function Documentation

camera_build_keyboard_input()

void camera_build_keyboard_input

(

Camera *

cam

)

Converts boolean keyboard flags into move_input.

Writes cam->move_input from cam->move_forward/backward/left/right/up/down. Values are binary (0 or ±1). Call before gamepad overlay and camera_fixed_update each physics step.

Parameters

cam	Pointer to the camera instance.

camera_fixed_update()

void camera_fixed_update

(

Camera *

cam

)

Performs one fixed-step physics update.

Reads move_input to build target_velocity, then applies momentum, friction, and head-bobbing. move_input must be set before calling (via camera_build_keyboard_input and/or gamepad overlay).

Parameters

cam	Pointer to the camera instance.

camera_get_view_matrix()

void camera_get_view_matrix	(	Camera *	cam,
		mat4	view
	)

Generates the 4x4 view matrix for this camera.

Parameters

	cam	Pointer to the camera instance.
[out]	view	Matrix to populate.

camera_init()

void camera_init	(	Camera *	cam,
		float	distance,
		float	yaw,
		float	pitch
	)

Initializes the camera with default values.

Parameters

cam	Pointer to the camera instance.
distance	Initial forward offset (legacy).
yaw	Initial horizontal rotation.
pitch	Initial vertical rotation.

Here is the call graph for this function:

camera_process_mouse()

void camera_process_mouse	(	Camera *	cam,
		float	xoffset,
		float	yoffset
	)

Processes mouse movement to update target orientation.

Parameters

cam	Pointer to the camera instance.
xoffset	Relative horizontal mouse movement.
yoffset	Relative vertical mouse movement.

camera_process_scroll()

void camera_process_scroll	(	Camera *	cam,
		float	yoffset
	)

Processes mouse scroll events to apply physical impulse.

Parameters

cam	Pointer to the camera instance.
yoffset	Scroll amount along the y-axis.

camera_update_vectors()

void camera_update_vectors

(

Camera *

cam

)

Recalculates front, right, and up vectors from yaw and pitch.

Parameters

cam	Pointer to the camera instance.

Note

Updates cam->front, cam->right, and cam->up.