let you walk around the title screen

Signed-off-by: Jessie Williams <quorawings@gmail.com>

src/lib.rs

@@ -16,6 +16,8 @@ struct Game {
     mara_position: Point,
     mara_frame: u32,
     mara_dir: Direction,
+    mara_speed: i32,
+    bonk_timer: Option<u8>,
 }
 
 impl Game {
@@ -25,21 +27,27 @@ impl Game {
             prev_gamepad: 0,
             rng: None,
             mai_position: Point { x: 76, y: 48 },
-            mara_position: Point { x: 0, y: 64 },
+            mara_position: Point { x: 32, y: 90 },
             mara_frame: 0,
             mara_dir: Right,
+            mara_speed: 0,
+            bonk_timer: None,
         }
     }
 
-    fn update(&mut self) {
-        self.frame_count += 1;
+    fn bonk(&mut self) {
+        if self.bonk_timer.is_some() {
+            return;
+        }
 
-        palette::set_draw_color(2);
-        text("Mara: Sh0rk of\nJustice 2\npowered by:\nsh0rk engine v0", 10, 10);
-        palette::set_draw_color(3);
-        text("From Within, 2022", 10, 144);
+        tone(220 | (40 << 16), 6 | (6 << 8), 50, TONE_TRIANGLE);
+        self.bonk_timer = Some(12);
+    }
 
-        sprites::MAI.draw(self.mai_position, 0);
+    fn mara_walk(&mut self) {
+        if self.mara_speed == 0 {
+            return;
+        }
 
         if self.frame_count % 15 == 0 {
             self.mara_frame = if self.mara_frame == 1 { 0 } else { 1 };
@@ -47,26 +55,84 @@ impl Game {
 
         if self.frame_count % 4 == 0 {
             if self.mara_dir == Right && self.mara_position.x >= 144 {
-                self.mara_dir = Down;
+                self.mara_speed = 0;
+                self.mara_position.x = 144;
+                self.bonk();
             }
             if self.mara_dir == Down && self.mara_position.y >= 120 {
-                self.mara_dir = Left;
+                self.mara_speed = 0;
+                self.mara_position.y = 120;
+                self.bonk();
             }
             if self.mara_dir == Left && self.mara_position.x <= 0 {
-                self.mara_dir = Up;
+                self.mara_speed = 0;
+                self.mara_position.x = 0;
+                self.bonk();
             }
             if self.mara_dir == Up && self.mara_position.y <= 64 {
-                self.mara_dir = Right;
+                self.mara_speed = 0;
+                self.mara_position.y = 64;
+                self.bonk();
             }
 
-            const SPEED: i32 = 2;
             match self.mara_dir {
-                Left => self.mara_position.x -= SPEED,
-                Right => self.mara_position.x += SPEED,
-                Up => self.mara_position.y -= SPEED,
-                Down => self.mara_position.y += SPEED,
+                Left => self.mara_position.x -= self.mara_speed,
+                Right => self.mara_position.x += self.mara_speed,
+                Up => self.mara_position.y -= self.mara_speed,
+                Down => self.mara_position.y += self.mara_speed,
             };
         }
+    }
+
+    fn update(&mut self) {
+        self.frame_count += 1;
+        if let Some(rem) = self.bonk_timer {
+            if rem == 0 {
+                self.bonk_timer = None;
+            } else {
+                self.bonk_timer = Some(rem-1);
+            }
+        }
+
+        self.mara_speed = 0;
+
+        let gamepad = unsafe { *GAMEPAD1 };
+        let just_pressed = gamepad & (gamepad ^ self.prev_gamepad);
+
+        let speed = if just_pressed & BUTTON_2 != 0 {
+            4
+        } else {
+            2
+        };
+
+        if gamepad & BUTTON_UP != 0 {
+            self.mara_dir = Up;
+            self.mara_speed = speed;
+        }
+
+        if gamepad & BUTTON_DOWN != 0 {
+            self.mara_dir = Down;
+            self.mara_speed = speed;
+        }
+
+        if gamepad & BUTTON_LEFT != 0 {
+            self.mara_dir = Left;
+            self.mara_speed = speed;
+        }
+
+        if gamepad & BUTTON_RIGHT != 0 {
+            self.mara_dir = Right;
+            self.mara_speed = speed;
+        }
+
+        self.mara_walk();
+
+        palette::set_draw_color(2);
+        text("Mara: Sh0rk of\nJustice 2\npowered by:\nsh0rk engine v0", 10, 10);
+        palette::set_draw_color(3);
+        text("From Within, 2022", 10, 144);
+
+        sprites::MAI.draw(self.mai_position, 0);
 
         sprites::MARA.draw(
             self.mara_dir,

src/sprites.rs

@@ -5,7 +5,9 @@ pub const GATE: Sprite<12> = Sprite {
     width: 12,
     height: 14,
     flags: 1,
-    sprite: [ 0x3d,0x5a,0xa7,0xf5,0xaa,0x57,0xd6,0xa5,0x6b,0x1f,0xff,0xfc ],
+    sprite: [
+        0x3d, 0x5a, 0xa7, 0xf5, 0xaa, 0x57, 0xd6, 0xa5, 0x6b, 0x1f, 0xff, 0xfc,
+    ],
 };
 
 pub const MAI: Sprite<64> = Sprite {
@@ -49,7 +51,7 @@ pub const MARA: SpriteAtlas<384> = SpriteAtlas {
             0xff, 0xc0, 0x0d, 0xea, 0xab, 0x70, 0x0d, 0xea, 0xab, 0x70, 0x0d, 0xee, 0xbb, 0x70,
             0x0d, 0xee, 0xbb, 0x70, 0xeb, 0x03, 0xb7, 0xb0, 0xeb, 0x03, 0xb7, 0xb0, 0x0d, 0xea,
             0xab, 0x70, 0x0d, 0xea, 0xab, 0x70, 0x0d, 0xee, 0xbb, 0x70, 0x0d, 0xee, 0xbb, 0x70,
-            0xea, 0xff, 0xde, 0xb0, 0xea, 0xff, 0xad, 0xf0, 0x00, 0x37, 0xdc, 0xc0, 0x03, 0x37,
+            0xea, 0xff, 0xde, 0xb0, 0xea, 0xff, 0xad, 0xf0, 0x03, 0x37, 0xdc, 0xc0, 0x03, 0x37,
             0xdc, 0xc0, 0x03, 0x3e, 0xbc, 0xc0, 0x03, 0x3e, 0xbc, 0xc0, 0x3a, 0xaa, 0xfa, 0xb0,
             0x3a, 0xaa, 0xab, 0xb0, 0x00, 0x37, 0xdc, 0x00, 0x00, 0x37, 0xdc, 0x00, 0x00, 0x3f,
             0xfc, 0x00, 0x00, 0x3f, 0xfc, 0x00, 0x3a, 0xaf, 0xd5, 0xf0, 0x3a, 0xaf, 0xd5, 0xf0,