From 7161b6990a8e73d9e79c1bdddacf22ce4068a72d Mon Sep 17 00:00:00 2001
From: Mitya Selivanov <automainint@guattari.tech>
Date: Wed, 21 Aug 2024 18:00:17 +0200
Subject: Fix platform global var; Update Julia Set example

---
 examples/echo.c        |  2 +-
 examples/julia_set.c   | 32 +++++++++++++++++++++++---------
 reduced_system_layer.c |  6 ++++--
 3 files changed, 28 insertions(+), 12 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;
diff --git a/reduced_system_layer.c b/reduced_system_layer.c
index ffcec97..9318098 100755
--- a/reduced_system_layer.c
+++ b/reduced_system_layer.c
@@ -29,10 +29,10 @@
 #/  To-Do list
 #/
 #/  - Examples
-#/    - Landscape
 #/    - Conway's Game if Life
 #/    - Julia Set
 #/    - Labyrinth
+#/    - Landscape
 #/  - Features
 #/    - Sound
 #/    - Clipboard daemon
@@ -226,7 +226,7 @@ void p_queue_sound(i64 delay, i64 num_samples, f32 *samples);
 i64 p_recv(u16 slot, IP_Address address, i64 size, u8 *data, u16 *local_port, IP_Address *remote_address);
 i64 p_send(u16 slot, IP_Address address, i64 size, u8 *data, u16 *local_port);
 
-Platform platform = {0};
+extern Platform platform;
 
 //  ================================================================
 
@@ -274,6 +274,8 @@ i32 main(i32 argc, c8 **argv) {
 #ifndef REDUCED_SYSTEM_LAYER_IMPLEMENTATION_GUARD_
 #define REDUCED_SYSTEM_LAYER_IMPLEMENTATION_GUARD_
 
+Platform platform = {0};
+
 //  ================================================================
 //
 //  Utilities
-- 
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