From b176d3779cbc3d0d02d6651b082cd5011522f7be Mon Sep 17 00:00:00 2001
From: "Juan J. Martinez" <jjm@usebox.net>
Date: Thu, 29 Jun 2023 23:12:41 +0100
Subject: Add attract screen

---
 src/menu.c | 102 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++----
 1 file changed, 96 insertions(+), 6 deletions(-)

(limited to 'src')

diff --git a/src/menu.c b/src/menu.c
index 24c24c7..ac5bcfc 100644
--- a/src/menu.c
+++ b/src/menu.c
@@ -7,15 +7,20 @@
 #include "data.h"
 #include "game.h"
 
-uint8_t run_menu()
+#define CAST_LEN 6
+
+static void render_hiscore()
 {
     char b[10];
 
-    blit_erase(0);
-
     sprintf(b, "HI %06li", get_hiscore());
     put_text(124, 10, b, 5);
 
+    put_text(96, 180, "_2023 USEBOX.NET", 1);
+}
+
+static void render_menu()
+{
     Rect dst = { 80, 45, 160, 38 };
     blit(binary_title_start, &dst);
 
@@ -23,11 +28,54 @@ uint8_t run_menu()
 
     put_text(64, 140, "CODE, GRAPHICS AND SOUND", 2);
     put_text(96, 150, "JUAN J. MARTINEZ", 3);
+}
 
-    put_text(96, 180, "_2023 USEBOX.NET", 1);
+/* names of the cast */
+static const char *names[CAST_LEN] = {
+    "THE MINER",
+    "SNAKEY",
+    "BATTY",
+    "OLD MINER",
+    "MR BONES",
+    "TIME MONSTER",
+};
+
+/* sprites for the cast */
+static const Rect sprites[CAST_LEN] = {
+    { 0, 0, 144, 144 },
+    { 0, 32, 144, 144 },
+    { 64, 32, 144, 144 },
+    { 0, 80, 144, 144 },
+    { 80, 48, 144, 144 },
+    { 80, 48, 144, 144 },
+};
+
+static void render_cast()
+{
+    put_text(128, 32, "THE CAST", 1);
+
+    Rect dst = { 104, 50, 16, 16 };
+
+    /* show the cast line by line */
+    for (uint8_t i = 0; i < CAST_LEN; i++)
+    {
+        blitrc(binary_sprites_start, &sprites[i], &dst);
+        put_text(dst.x + 16 + 8, dst.y + 6, names[i], i + 2);
 
-    wait_vsync();
-    blit_update();
+        wait_vsync();
+        blit_update();
+
+        wait_frames(32);
+
+        dst.y += 20;
+    }
+}
+
+uint8_t run_menu()
+{
+    uint16_t count = 0;
+    uint8_t cast = 0;
+    uint8_t wait;
 
     while (1)
     {
@@ -36,5 +84,47 @@ uint8_t run_menu()
 
         if (keys[KEY_SPACE])
             return 1;
+
+        /* change of screen, requires drawing */
+        if (count == 0)
+        {
+            blit_erase(0);
+
+            render_hiscore();
+            if (cast)
+                render_cast();
+            else
+            {
+                wait = 0;
+                render_menu();
+            }
+
+            wait_vsync();
+            blit_update();
+        }
+
+        /* if is not cast, we do the "blink" effect */
+        if (!cast)
+        {
+            wait++;
+            if (wait == 64 || wait == 80)
+            {
+                if (wait == 80)
+                    wait = 0;
+
+                put_text(84, 110, "PRESS SPACE TO PLAY", wait ? 0 : 1);
+                wait_vsync();
+                blit_update();
+            }
+        }
+
+        /* frames before changing screen */
+        if (count++ == 324)
+        {
+            cast ^= 1;
+            count = 0;
+        }
+
+        wait_vsync();
     }
 }
-- 
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