effects.h File Reference

Jo Engine Function prototypes special effects (Laser beam, etc) More...

Go to the source code of this file.

Data Structures
struct	jo_homing_laser
	Homing laser effect definition. More...

Functions
void	jo_init_homing_laser (jo_homing_laser *const homing_laser, const int sprite_id, const unsigned short thickness, const int z, const unsigned short nb_sections)
	Init jo_homing_laser struct. More...
void	jo_draw_homing_laser (jo_homing_laser *const homing_laser)
	Draw homing laser effect. More...

Detailed Description

Jo Engine Function prototypes special effects (Laser beam, etc)

Author

Johannes Fetz

Bug:

No known bugs.

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Data Structure Documentation

jo_homing_laser

struct jo_homing_laser

Homing laser effect definition.

Data Fields
bool	center_sprites_according_to_thickness
jo_fixed	horizontal_thickness
jo_vector_fixed	intermediate_point_a
jo_vector_fixed	intermediate_point_b
jo_fixed	length
jo_fixed	section_step
jo_vector_fixed	source
int	sprite_id
jo_vector_fixed	target
bool	use_intermediate_point_a
bool	use_intermediate_point_b
jo_fixed	vertical_thickness

Function Documentation

jo_draw_homing_laser()

void jo_draw_homing_laser

(

jo_homing_laser *const

homing_laser

)

Draw homing laser effect.

Parameters

homing_laser

Homing laser definition

Remarks

source, intermediate_point_a, intermediate_point_b, target and length must be set before this call

jo_init_homing_laser()

void jo_init_homing_laser	(	jo_homing_laser *const	homing_laser,
		const int	sprite_id,
		const unsigned short	thickness,
		const int	z,
		const unsigned short	nb_sections
	)

Init jo_homing_laser struct.

Parameters

homing_laser	Homing laser definition
sprite_id	Sprite ID
thickness	Horizontal Laser thickness (1 to 256)
z	Default z index (500 for example)
nb_sections	Number of section in the curve aka smoothness (4 to 64 and must be a multiple of 2).

Remarks

nb_sections=20 Should be enough for most case