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-rw-r--r--04-conway/src/main.c69
1 files changed, 51 insertions, 18 deletions
diff --git a/04-conway/src/main.c b/04-conway/src/main.c
index fd591d9..75ed338 100644
--- a/04-conway/src/main.c
+++ b/04-conway/src/main.c
@@ -8,12 +8,14 @@
#include <sodium.h>
-#define BUF_W 512
-#define BUF_H 512
+#define BUF_W 256
+#define BUF_H 256
+
+#define DISP_SCALE 3
#define SEED_BITS 4096
-#define FPS 20.0
+#define FPS 60.0
#define DO_INIT(check, desc) \
if (!(check)) { \
@@ -39,11 +41,14 @@ int main(int argc, char **argv)
uint8_t bits1[BUF_H][BUF_W / 8] = {0};
uint8_t bits2[BUF_H][BUF_W / 8] = {0};
- uint8_t framerate = 2;
+ uint8_t framerate = 8;
unsigned goframes = 1;
unsigned x, y, sum;
- bool pause = 1;
+ bool pause = true;
+ bool mouse_down = false;
+
+ ALLEGRO_MOUSE_STATE ms;
ALLEGRO_DISPLAY *d = NULL;
ALLEGRO_BITMAP *b = NULL;
@@ -57,16 +62,21 @@ int main(int argc, char **argv)
DO_INIT(al_init(), "allegro");
DO_INIT(al_init_primitives_addon(), "primitives");
DO_INIT(al_install_keyboard(), "keyboard");
+ DO_INIT(al_install_mouse(), "mouse");
DO_INIT(t = al_create_timer(1.0 / FPS), "timer");
DO_INIT(eq = al_create_event_queue(), "event queue");
al_set_new_display_option(ALLEGRO_SINGLE_BUFFER, 1, ALLEGRO_REQUIRE);
- DO_INIT(d = al_create_display(2 * BUF_W, 2 * BUF_H), "display");
+ DO_INIT(d = al_create_display(
+ DISP_SCALE * BUF_W, DISP_SCALE * BUF_H
+ ), "display"
+ );
al_set_new_bitmap_flags(ALLEGRO_MEMORY_BITMAP);
DO_INIT(b = al_create_bitmap(BUF_W, BUF_H), "buffer");
al_register_event_source(eq, al_get_keyboard_event_source());
+ al_register_event_source(eq, al_get_mouse_event_source());
al_register_event_source(eq, al_get_display_event_source(d));
al_register_event_source(eq, al_get_timer_event_source(t));
@@ -77,13 +87,6 @@ reset:
memset(bits1, 0, sizeof(bits1));
- for (x = 0; x < SEED_BITS; x++) {
- bit_set(
- bits1[randombytes_random() % BUF_H],
- randombytes_random() % BUF_W
- );
- }
-
while(true) {
al_wait_for_event(eq, &e);
@@ -92,18 +95,39 @@ reset:
case ALLEGRO_EVENT_DISPLAY_CLOSE:
goto done;
+ case ALLEGRO_EVENT_MOUSE_BUTTON_DOWN:
+ bit_set(bits1[e.mouse.y / DISP_SCALE], e.mouse.x / DISP_SCALE);
+ mouse_down = true;
+ break;
+
+ case ALLEGRO_EVENT_MOUSE_BUTTON_UP:
+ mouse_down = false;
+ break;
+
case ALLEGRO_EVENT_KEY_DOWN:
switch(e.keyboard.keycode) {
+ case ALLEGRO_KEY_Q:
+ goto done;
+
case ALLEGRO_KEY_1:
- puts("reset");
- goto reset;
+ framerate = (framerate == 2 ? 16 : framerate / 2);
+ printf("fps: %.1f\n", FPS / ((float)framerate) );
+ break;
case ALLEGRO_KEY_2:
- framerate = (framerate == 1 ? 8 : framerate / 2);
- printf("fps: %.1f\n", FPS / ((float)framerate) );
+ memset(bits1, 0, sizeof(bits1));
+ for (x = 0; x < SEED_BITS; x++) {
+ bit_set(
+ bits1[randombytes_random() % BUF_H],
+ randombytes_random() % BUF_W
+ );
+ }
break;
+ case ALLEGRO_KEY_3:
+ goto reset;
+
case ALLEGRO_KEY_ENTER:
pause = !pause;
printf("%s\n", pause ? "pause" : "play");
@@ -118,6 +142,11 @@ reset:
case ALLEGRO_EVENT_TIMER:
+ if (mouse_down) {
+ al_get_mouse_state(&ms);
+ bit_set(bits1[ms.y / 2], ms.x / 2);
+ }
+
if (goframes > 1) {
goframes--;
break;
@@ -167,7 +196,11 @@ reset:
al_unlock_bitmap(b);
al_set_target_backbuffer(d);
- al_draw_scaled_bitmap(b, 0, 0, BUF_W, BUF_H, 0, 0, 2 * BUF_W, 2 * BUF_H, 0);
+ al_draw_scaled_bitmap(b,
+ 0, 0, BUF_W, BUF_H,
+ 0, 0, DISP_SCALE * BUF_W, DISP_SCALE * BUF_H,
+ 0
+ );
al_flip_display();
goframes = framerate;