From 29f0253e5bbcc94ff952b970f332ef021f21281a Mon Sep 17 00:00:00 2001
From: apio <blobs.trading@gmail.com>
Date: Tue, 20 Sep 2022 20:49:31 +0200
Subject: [PATCH] Little colorful demo

---
 kernel/src/main.cpp | 50 +++++++++++++++++++++++++++++++++------------
 1 file changed, 37 insertions(+), 13 deletions(-)

diff --git a/kernel/src/main.cpp b/kernel/src/main.cpp
index 48647cd7..db584d65 100644
--- a/kernel/src/main.cpp
+++ b/kernel/src/main.cpp
@@ -70,28 +70,53 @@ extern "C" void _start()
     kinfoln("Prepared scheduler");
 
     Scheduler::add_kernel_task([]() {
+        int64_t x = 0;
+        int64_t y = 0;
+        int64_t xvel = 10;
+        int64_t yvel = 10;
         while (1)
         {
-            sleep(1000);
-            for (int i = 0; i < 5; i++) { Serial::println("woo!"); }
+            sleep(5);
+            uint32_t color = (uint32_t)Mersenne::get();
+            uint32_t* colptr = &color;
+            x += xvel;
+            y += yvel;
+            if ((x + 10) >= framebuffer0.width())
+            {
+                xvel = -xvel;
+                x = (framebuffer0.width() - 10);
+            }
+            if ((y + 10) >= framebuffer0.height())
+            {
+                yvel = -yvel;
+                y = (framebuffer0.height() - 10);
+            }
+            if (xvel < 0 && (x - 10) < 0)
+            {
+                xvel = -xvel;
+                x = 0;
+            }
+            if (yvel < 0 && (y - 10) < 0)
+            {
+                yvel = -yvel;
+                y = 0;
+            }
+            framebuffer0.paint_rect(x, y, 10, 10, *(Color*)colptr);
         }
     });
 
     Scheduler::add_kernel_task([]() {
-        sleep(500);
         while (1)
         {
-            sleep(2000);
-            for (int i = 0; i < 6; i++) { Serial::println("boo!"); }
+            sleep(200);
+            uint32_t color = (uint32_t)Mersenne::get();
+            uint32_t* colptr = &color;
+            framebuffer0.paint_rect(Mersenne::get() % (framebuffer0.width() - 256),
+                                    Mersenne::get() % (framebuffer0.height() - 256), Mersenne::get() % 255,
+                                    Mersenne::get() % 255, *(Color*)colptr);
         }
     });
 
-    Scheduler::add_kernel_task([]() {
-        sleep(20000);
-        kinfoln("Here i am, the hard-to-get thread!");
-        while (1) Scheduler::yield();
-    });
-
     kinfoln("Prepared scheduler tasks");
 
     ACPI::SDTHeader* rootSDT = ACPI::GetRSDTOrXSDT();
@@ -104,6 +129,5 @@ extern "C" void _start()
 
     kinfoln("Interrupts enabled");
 
-    sleep(20000);
-    reboot();
+    while (1) Scheduler::sleep(200);
 }
\ No newline at end of file