diff options
| author | Vito Caputo <vcaputo@gnugeneration.com> | 2017-01-18 17:14:52 -0800 | 
|---|---|---|
| committer | Vito Caputo <vcaputo@gnugeneration.com> | 2017-01-18 17:31:44 -0800 | 
| commit | 524db0cf19648e3c7c78d3e73103b7a0bdcd6bfc (patch) | |
| tree | 6fd682629904a210927797c92d956c208666b03a /modules/sparkler/simple.c | |
| parent | ee2073d4e411555aba878277131b56f7eb562c84 (diff) | |
*: move source into src/ subdir
Restoring some organizational sanity since adopting autotools.
Diffstat (limited to 'modules/sparkler/simple.c')
| -rw-r--r-- | modules/sparkler/simple.c | 113 | 
1 files changed, 0 insertions, 113 deletions
diff --git a/modules/sparkler/simple.c b/modules/sparkler/simple.c deleted file mode 100644 index e453e46..0000000 --- a/modules/sparkler/simple.c +++ /dev/null @@ -1,113 +0,0 @@ -#include <stdlib.h> - -#include "draw.h" -#include "particle.h" -#include "particles.h" - - -/* a "simple" particle type */ -#define SIMPLE_MAX_DECAY_RATE	20 -#define SIMPLE_MIN_DECAY_RATE	2 -#define SIMPLE_MAX_LIFETIME	110 -#define SIMPLE_MIN_LIFETIME	30 -#define SIMPLE_MAX_SPAWN	15 -#define SIMPLE_MIN_SPAWN	2 - -extern particle_ops_t rocket_ops; - -typedef struct _simple_ctxt_t { -	int		decay_rate; -	int		longevity; -	int		lifetime; -} simple_ctxt_t; - - -static int simple_init(particles_t *particles, particle_t *p) -{ -	simple_ctxt_t	*ctxt = p->ctxt; - -	ctxt->decay_rate = rand_within_range(SIMPLE_MIN_DECAY_RATE, SIMPLE_MAX_DECAY_RATE); -	ctxt->lifetime = ctxt->longevity = rand_within_range(SIMPLE_MIN_LIFETIME, SIMPLE_MAX_LIFETIME); - -	if (!p->props->of_use) { -		/* everything starts from the bottom center */ -		p->props->position.x = 0; -		p->props->position.y = 0; -		p->props->position.z = 0; - -		/* TODO: direction random-ish within the range of a narrow upward facing cone */ -		p->props->direction.x = (float)(rand_within_range(0, 6) - 3) * .1f; -		p->props->direction.y = 1.0f + (float)(rand_within_range(0, 6) - 3) * .1f; -		p->props->direction.z = (float)(rand_within_range(0, 6) - 3) * .1f; -		p->props->direction = v3f_normalize(&p->props->direction); - -		p->props->velocity = (float)rand_within_range(300, 800) / 100000.0; - -		p->props->drag = 0.03; -		p->props->mass = 0.3; -		p->props->of_use = 1; -	} /* else { we've been given properties, manipulate them or run with them? } */ - -	return 1; -} - - -static particle_status_t simple_sim(particles_t *particles, particle_t *p) -{ -	simple_ctxt_t	*ctxt = p->ctxt; - -	/* a particle is free to manipulate its children list when aging, but not itself or its siblings */ -	/* return PARTICLE_DEAD to remove kill yourself, do not age children here, the age pass will recurse -	 * into children and age them independently _after_ their parents have been aged -	 */ -	if (!ctxt->longevity || (ctxt->longevity -= ctxt->decay_rate) <= 0) { -		ctxt->longevity = 0; -		return PARTICLE_DEAD; -	} - -	/* create particles inheriting our type based on some silly conditions, with some tweaks to their direction */ -	if (ctxt->longevity == 42 || (ctxt->longevity > 500 && !(ctxt->longevity % 50))) { -		int	i, num = rand_within_range(SIMPLE_MIN_SPAWN, SIMPLE_MAX_SPAWN); - -		for (i = 0; i < num; i++) { -			particle_props_t	props = *p->props; -			particle_ops_t		*ops = INHERIT_OPS; - -			if (i == (SIMPLE_MAX_SPAWN - 2)) { -				ops = &rocket_ops; -				props.velocity = (float)rand_within_range(60, 100) / 1000000.0; -			} else { -				props.velocity = (float)rand_within_range(30, 100) / 10000.0; -			} - -			props.direction.x += (float)(rand_within_range(0, 315 * 2) - 315) / 100.0; -			props.direction.y += (float)(rand_within_range(0, 315 * 2) - 315) / 100.0; -			props.direction.z += (float)(rand_within_range(0, 315 * 2) - 315) / 100.0; -			props.direction = v3f_normalize(&props.direction); - -			particles_spawn_particle(particles, p, &props, ops); // XXX -		} -	} - -	return PARTICLE_ALIVE; -} - - -static void simple_draw(particles_t *particles, particle_t *p, int x, int y, fb_fragment_t *f) -{ -	simple_ctxt_t	*ctxt = p->ctxt; - -	if (!draw_pixel(f, x, y, makergb(0xff, 0xff, 0xff, ((float)ctxt->longevity / ctxt->lifetime)))) { -		/* immediately kill off stars that wander off screen */ -		ctxt->longevity = 0; -	} -} - - -particle_ops_t	simple_ops = { -			.context_size = sizeof(simple_ctxt_t), -			.sim = simple_sim, -			.init = simple_init, -			.draw = simple_draw, -			.cleanup = NULL, -		};  | 
