Add pickaxe pickup

1 files changed, 35 insertions, 2 deletions

diff --git a/src/game.c b/src/game.c
index 70b1e74..64a7b23 100644
--- a/src/game.c
+++ b/src/game.c
@@ -16,12 +16,14 @@
 #define GAME_LIVES_START    3
 #define GAME_LIVES_MAX      9
 #define GAME_TIME_MAX       60
+#define GAME_MAX_PICKAXE    3
 
 #define HUD_CLEAN   0
 #define HUD_LIVES   1
 #define HUD_SCORE   2
 #define HUD_STAGE   4
 #define HUD_TIME    8
+#define HUD_PICKAXE 16
 #define HUD_ALL     255
 
 #define GAMEOVER_DELAY 96
@@ -35,8 +37,8 @@ static volatile uint8_t clock_updated;
 static uint8_t lives;
 static uint32_t score;
 static uint8_t stage;
-static uint8_t gold;
 static uint8_t time;
+static uint8_t pickaxe;
 static uint8_t gameover;
 
 static void hud_render()
@@ -51,6 +53,11 @@ static void hud_render()
         /* lives */
         blitrc(binary_sprites_start, &src, &dst);
 
+        /* pickaxe */
+        src.x = 112;
+        dst.x = 90;
+        blitrc(binary_sprites_start, &src, &dst);
+
         put_text(132, 4, "TIME", 1);
         put_text(249, 4, "STAGE", 1);
     }
@@ -67,6 +74,12 @@ static void hud_render()
         put_text(34, 4, b, 5);
     }
 
+    if (hud & HUD_PICKAXE)
+    {
+        sprintf(b, "%d", pickaxe);
+        put_text(106, 4, b, 1);
+    }
+
     if (hud & HUD_TIME)
     {
         sprintf(b, "%02d", time);
@@ -105,7 +118,7 @@ void run_game()
     lives = GAME_LIVES_START;
     score = 0;
     stage = 0;
-    gold = 30;
+    pickaxe = 0;
     time = GAME_TIME_MAX;
 
     hud = HUD_ALL;
@@ -191,3 +204,23 @@ void reset_time()
     hud |= HUD_TIME;
     timer_start(GAME_TIME_MAX, &clock_updated);
 }
+
+void add_pickaxe()
+{
+    if (pickaxe < GAME_MAX_PICKAXE)
+    {
+        pickaxe++;
+        hud |= HUD_PICKAXE;
+    }
+}
+
+uint8_t use_pickaxe()
+{
+    if (pickaxe)
+    {
+        pickaxe--;
+        hud |= HUD_PICKAXE;
+        return 1;
+    }
+    return 0;
+}