Add: snake game! (basics)

src/drivers/framebuffer.c

@@ -12,10 +12,8 @@ extern char* framebuffer;
 
 void putpixel(uint32_t* fb, int pitch, int bpp, int x, int y, uint32_t color)
 {
-	if (bpp == 32) {
-		uint32_t* pixel_addr = (uint32_t*)((uint8_t*)fb + y * pitch + x *(bpp / 8));
-		*pixel_addr = color;
-	}
+	uint32_t* pixel_addr = (uint32_t*)((uint8_t*)fb + y * pitch + x *(bpp / 8));
+	*pixel_addr = color;
 }
 
 void draw_char(unsigned short int c, int cx, int cy, uint32_t fg, uint32_t bg)

src/drivers/kb.c

@@ -140,3 +140,19 @@ char keyboard_getchar()
 	keyboard_buffer_start = (keyboard_buffer_start+1) % KEYBOARD_BUFFER_SIZE;
 	return c;
 }
+
+int keyboard_has_input()
+{
+	return keyboard_buffer_start != keyboard_buffer_end;
+}
+
+char keyboard_getchar_non_blocking()
+{
+	if (keyboard_has_input())
+	{
+		char c = keyboard_buffer[keyboard_buffer_start];
+		keyboard_buffer_start = (keyboard_buffer_start+1)%KEYBOARD_BUFFER_SIZE;
+		return c;
+	}
+	return 0;
+}

src/drivers/kb.h

@@ -14,5 +14,7 @@
 #define RIGHT_SHIFT_RELEASED    0xB6
 
 char keyboard_getchar();
+int keyboard_has_input();
+char keyboard_getchar_non_blocking();
 
 #endif