lg_cam_controls.c File Reference

Functions
zboolean	lg_camera_apply_in (LG_Camera *camera, LG_Camera_K *camera_k)
const char *	lg_rotations_order_from_yaw_pitch_roll (const char *str)

Function Documentation

lg_camera_apply_in()

zboolean lg_camera_apply_in	(	LG_Camera *	camera,
		LG_Camera_K *	camera_k
	)

Check camera->input_state and move/rotate the camera

• in = user input
• LG_InputState is defined in lg_ui.h
• lg_ui.c: lg_camcontrols_keys_str() returns a formatted help string describing what keys do
• If rotations_order[0] == 0, will use attitude_seq
• Slow motion = cam->slow_motion OR cam_k->slow_motion

typedef struct {
     // Also in LG_InputState
     float           move_forward;
     float           move_up;
     float           cam_truck;
     float           yaw;
     float           pitch;
     float           roll;
     float           h_orbit;
     float           v_orbit;
     float           dz_wheel;
     zboolean        slow_motion;
     // Not in LG_InputState
     char            rotations_order[4];     // One of "XYZ", "XZY", "YXZ", "YZX", "ZXY", "ZYX"
     char            attitude_seq[13];       // One of "PitchYawRoll", "PitchRollYaw", "YawPitchRoll", "YawRollPitch", "RollPitchYaw", "RollYawPitch"
} LG_Camera_K;

Parameters

camera	Pointer to a LG_Camera
camera_k	Pointer to a LG_Camera_K

Returns

TRUE if OK, FALSE otherwise

lg_rotations_order_from_yaw_pitch_roll()

const char* lg_rotations_order_from_yaw_pitch_roll

(

const char *

str

)

Helper func to get rotations sequence string (eg, "YXZ") from attitude string (eg, "YawPitchRoll")

Parameters

str	Attitude string

Returns

Rotations sequence string