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-rw-r--r--src/modules/swarm/swarm.c43
1 files changed, 33 insertions, 10 deletions
diff --git a/src/modules/swarm/swarm.c b/src/modules/swarm/swarm.c
index ffaaa1d..a41e388 100644
--- a/src/modules/swarm/swarm.c
+++ b/src/modules/swarm/swarm.c
@@ -20,6 +20,7 @@
* https://en.wikipedia.org/wiki/Swarm_intelligence
*/
+#include <errno.h>
#include <stdlib.h>
#include <unistd.h>
#include <math.h>
@@ -27,11 +28,6 @@
#include "til.h"
#include "til_fb.h"
-typedef enum swarm_draw_style_t {
- SWARM_DRAW_STYLE_POINTS, /* simple opaque pixel per particle */
- SWARM_DRAW_STYLE_LINES, /* simple opaque lines per particle, oriented and sized by direction and velocity */
-} swarm_draw_style_t;
-
typedef struct v3f_t {
float x, y, z;
} v3f_t;
@@ -46,9 +42,19 @@ typedef struct boid_t {
float velocity;
} boid_t;
+typedef enum swarm_draw_style_t {
+ SWARM_DRAW_STYLE_POINTS, /* simple opaque pixel per particle */
+ SWARM_DRAW_STYLE_LINES, /* simple opaque lines per particle, oriented and sized by direction and velocity */
+} swarm_draw_style_t;
+
+typedef struct swarm_setup_t {
+ swarm_draw_style_t draw_style;
+} swarm_setup_t;
+
typedef struct swarm_context_t {
v3f_t color;
float ztweak;
+ swarm_setup_t setup;
boid_t boids[];
} swarm_context_t;
@@ -56,7 +62,9 @@ typedef struct swarm_context_t {
#define SWARM_ZCONST 4.f
#define SWARM_DEFAULT_STYLE SWARM_DRAW_STYLE_LINES
-static swarm_draw_style_t swarm_draw_style = SWARM_DEFAULT_STYLE;
+static swarm_setup_t swarm_default_setup = {
+ .draw_style = SWARM_DEFAULT_STYLE,
+};
static inline float randf(float min, float max)
@@ -174,10 +182,15 @@ static void * swarm_create_context(unsigned ticks, unsigned num_cpus, void *setu
{
swarm_context_t *ctxt;
+ if (!setup)
+ setup = &swarm_default_setup;
+
ctxt = calloc(1, sizeof(swarm_context_t) + sizeof(*(ctxt->boids)) * SWARM_SIZE);
if (!ctxt)
return NULL;
+ ctxt->setup = *(swarm_setup_t *)setup;
+
for (unsigned i = 0; i < SWARM_SIZE; i++)
boid_randomize(&ctxt->boids[i]);
@@ -399,7 +412,7 @@ static void swarm_render_fragment(void *context, unsigned ticks, unsigned cpu, t
til_fb_fragment_zero(fragment);
- switch (swarm_draw_style) {
+ switch (ctxt->setup.draw_style) {
case SWARM_DRAW_STYLE_POINTS:
return swarm_draw_as_points(ctxt, fragment);
case SWARM_DRAW_STYLE_LINES:
@@ -432,9 +445,19 @@ static int swarm_setup(const til_settings_t *settings, til_setting_t **res_setti
if (r)
return r;
- for (int i = 0; styles[i]; i++) {
- if (!strcmp(styles[i], style))
- swarm_draw_style = i;
+ if (res_setup) {
+ swarm_setup_t *setup;
+
+ setup = calloc(1, sizeof(*setup));
+ if (!setup)
+ return -ENOMEM;
+
+ for (int i = 0; styles[i]; i++) {
+ if (!strcmp(styles[i], style))
+ setup->draw_style = i;
+ }
+
+ *res_setup = setup;
}
return 0;
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