Fix platform global var; Update Julia Set example

2 files changed, 24 insertions, 10 deletions

diff --git a/examples/echo.c b/examples/echo.c
index 671d609..7790c6a 100755
--- a/examples/echo.c
+++ b/examples/echo.c
@@ -57,7 +57,7 @@ i32 main(i32 argc, c8 **argv) {
 
   switch (mode) {
     case MODE_RECV: {
-      printf("Recieving UDP messages on port %d\n\n", PORT);
+      printf("Receiving UDP messages on port %d\n\n", PORT);
 
       for (;;) {
         i64 n = p_recv(
diff --git a/examples/julia_set.c b/examples/julia_set.c
index 9d12bb8..747c339 100755
--- a/examples/julia_set.c
+++ b/examples/julia_set.c
@@ -45,13 +45,28 @@ i32 main(i32 argc, c8 **argv) {
   f64 view_y = 0.;
   f64 view_s = 1.;
 
-  f64 cx     = -.8;
-  f64 cy     = .1;
+  f64 cx     = -.771;
+  f64 cy     = .1005;
   f64 radius = 2.;
   i64 limit  = 1024;
 
+  i64 time = p_time();
+
   while (!platform.done) {
-    p_wait_events();
+    i32 num_events = p_handle_events();
+
+    i64 time_elapsed = p_time() - time;
+    time += time_elapsed;
+
+    b8 left  = platform.key_down[KEY_LEFT];
+    b8 right = platform.key_down[KEY_RIGHT];
+    b8 up    = platform.key_down[KEY_UP];
+    b8 down  = platform.key_down[KEY_DOWN];
+
+    if (!left && !right && !up && !down && num_events == 0) {
+      p_sleep_for(1);
+      continue;
+    }
 
     if (platform.key_pressed['\n'])
       p = (p == 1 ? 4 : 1);
@@ -62,13 +77,12 @@ i32 main(i32 argc, c8 **argv) {
       view_s = 1.;
     }
 
-    f64 d = platform.key_down[MOD_CTRL] ? .0005 : .01;
-
-    if (platform.key_pressed['q']) cx -= d;
-    if (platform.key_pressed['w']) cx += d;
-    if (platform.key_pressed['a']) cy -= d;
-    if (platform.key_pressed['s']) cy += d;
+    f64 d = (platform.key_down[MOD_CTRL] ? .00005 : .001) * view_s * time_elapsed;
 
+    if (left)  { cx -= d; cy -= d; }
+    if (right) { cx += d; cy += d; }
+    if (up)    { cx += d; cy -= d; }
+    if (down)  { cx -= d; cy += d; }
 
     if (platform.key_down[BUTTON_LEFT]) {
       view_x += platform.cursor_dx * view_s;