ru:: ghosts and bones

rogueviz/ru/classes.cpp

@@ -199,7 +199,7 @@ struct entity {
 
   virtual double grav() { return 0.1; }  
 
-  bool on_floor, fallthru, on_ice, wallhug, on_bounce;
+  bool on_floor, fallthru, on_ice, wallhug, on_bounce, is_stable;
 
   bool destroyed;
   void kino();
@@ -208,7 +208,7 @@ struct entity {
   void apply_walls_reflect();
   void apply_grav();
   void apply_portal_grav();
-  void stay_on_screen();
+  bool stay_on_screen(); /* returns true if flipped */
   virtual void act() { kino(); }
 
   double get_scale() { return get_scale_at(where.y); }
@@ -235,12 +235,14 @@ struct entity {
     existing = false;
     }
 
+  virtual int invinc_time() { return 150; }
+
   virtual bool reduce_hp(int x) {
     if(hp < 0) return false;
     if(gframeid < invinc_end) return false;
     hp -= x;
     if(hp <= 0) on_kill();
-    invinc_end = gframeid + 150;
+    invinc_end = gframeid + invinc_time();
     return true;
     }
 
@@ -350,6 +352,21 @@ struct boar : public enemy {
   int max_hp() { return 60; }
   };
 
+struct ghost : public enemy {
+  int xp, hp;
+  bool flipped;
+  xy siz() override { return {12, 12}; }
+  string glyph() override { return "g"; }
+  color_t color() override { return 0x4040A0FF; }
+  void act() override;
+  void attacked(int s) override;
+  string get_name() override { return "ghost"; }
+  string get_help() override { return "This apparition looks strangely like you..."; }
+  int base_xp() { return hp; }
+  int max_hp() { return xp; }
+  void regenerate() override {}
+  };
+
 struct snake : public enemy {
   int dir, respawn_dir;
   xy siz() override { return {18, 8}; }

rogueviz/ru/entity.cpp

@@ -115,6 +115,9 @@ void entity::apply_walls() {
         else if(b != wFrozen) hit_wall();
         }
       if(pixel_to_block(get_pixel_bbox_at(where + vel)).maxy <= y) where.y += vel.y; 
+
+      if(walls[b].flags & W_STABLE) is_stable = true;
+
       goto again;
       }
     if((walls[b].flags & W_PAIN) && pain_effect()) goto again;
@@ -206,11 +209,13 @@ void entity::apply_walls() {
     }
   }
 
-void entity::stay_on_screen() {
-  if(where.x < l_margin_at && vel.x < 0) vel.x = -vel.x;
-  if(where.x > r_margin_at && vel.x > 0) vel.x = -vel.x;
-  if(where.y < t_margin_at && vel.y < 0) vel.y = -vel.y;
-  if(where.y > b_margin_at && vel.y > 0) vel.y = -vel.y;
+bool entity::stay_on_screen() {
+  bool res = false;
+  if(where.x < l_margin_at && vel.x < 0) vel.x = -vel.x, res = true;
+  if(where.x > r_margin_at && vel.x > 0) vel.x = -vel.x, res = true;
+  if(where.y < t_margin_at && vel.y < 0) vel.y = -vel.y, res = true;
+  if(where.y > b_margin_at && vel.y > 0) vel.y = -vel.y, res = true;
+  return res;
   }
 
 void entity::kino() {
@@ -218,6 +223,7 @@ void entity::kino() {
   on_ice = false;
   wallhug = false;
   on_bounce = false;
+  is_stable = false;
   zero_vel = xy(0, 0);
 
   // ld modv = 60. / game_fps;
@@ -288,6 +294,29 @@ void boar::attacked(int dmg) {
   if(on_floor) vel.x = dat.d * dat.modv * s * 2, vel.y = -dat.d * dat.modv * 2.5;
   }
 
+void ghost::act() {
+  hyperpoint g = to_hyper(where);
+  hyperpoint h = to_hyper(m.where);
+  ld d = hdist(g, h);
+  ld angle = gframeid < invinc_end ? M_PI : d > 0.5 ? 90._deg : d > 0.05 ? 80._deg : 5._deg;
+  ld gv = d > 0.04 && gframeid > invinc_end ? 0.2 : 0.1;
+  if(flipped) angle = -angle;
+  hyperpoint g1 = rgpushxto0(g) * rspintox(gpushxto0(g) * h) * spin(angle) * xpush0(gv / game_fps);
+  vel = from_hyper(g1) - where;
+  if(stay_on_screen()) flipped = !flipped;
+  apply_vel();
+  if(intersect(get_pixel_bbox(), m.get_pixel_bbox()) && gframeid > invinc_end) {
+    invinc_end = gframeid + 200;
+    if(m.reduce_hp(20)) addMessage("The ghost passes through you!");
+    }
+  }
+
+void ghost::attacked(int dmg) {
+  current_target = this;
+  reduce_hp(dmg);
+  if(!existing) addMessage("You kill the ghost."); else addMessage("You hit the ghost.");
+  }
+
 void snake::act() {
   stay_on_screen();
   kino();

rogueviz/ru/globals.cpp

@@ -65,12 +65,13 @@ flagtype W_PAIN = 16;
 flagtype W_BOUNCY = 32;
 flagtype W_FROZEN = 64;
 flagtype W_BLOCKBIRD = 128;
+flagtype W_STABLE = 256;
 
 constexpr int qwall = int(wGUARD);
 
 ruwall walls[qwall] = {
   {"air", ".", 0x40404080, W_TRANS, "Looks like an empty space, but actually necessary for survival."},
-  {"wall", "#", 0xFFFFFFFF, W_BLOCK, "These kinds of tough walls can never be destroyed."},
+  {"wall", "#", 0xFFFFFFFF, W_BLOCK | W_STABLE, "These kinds of tough walls can never be destroyed."},
   {"bouncy wall", "#", 0x80FF80FF, W_BLOCK | W_BOUNCY, "Like walls, but things bounce off them."},
   {"spike", "^", 0xC08080FF, W_TRANS | W_PAIN | W_BLOCKBIRD, "Dangerous!"},
   {"water", "~", 0x0000FFFF, W_BLOCK | W_TRANS | W_BLOCKBIRD, "Not used yet."},

rogueviz/ru/man.cpp

@@ -6,6 +6,9 @@ bool on_fountain;
 room *fountain_room;
 xy fountain_where;
 
+room *stable_room;
+xy stable_where;
+
 void regenerate_all() {
   m.hp = m.max_hp();
   for(auto& p: powers) p.refill();
@@ -37,6 +40,11 @@ void check_fountains() {
 void man::act() {
   kino();
 
+  if(is_stable) {
+    stable_room = current_room;
+    stable_where = where;
+    }
+
   current_stats = next_stats;
   next_stats = base_stats;
   auto dat = get_dat();

rogueviz/ru/powers.cpp

@@ -144,6 +144,7 @@ power& gen_power(int key, string name, string desc, string glyph, color_t color,
   }
 
 power *extra_life;
+int gold_id;
 
 void gen_powers() {
   powers.reserve(100);
@@ -158,6 +159,9 @@ void gen_powers() {
       d.p->flags |= IDENTIFIED;
       if(d.keystate == 1) {
         if(!m.existing) {
+          auto w = m.where;
+          auto cr = current_room;
+          int hp = m.max_hp();
           revert_all(death_revert);
           regenerate_all();
           if(!(extra_life->flags & ACTIVE)) extra_life->qty_filled = 0;
@@ -168,6 +172,19 @@ void gen_powers() {
             addMessage("You wake up at the Magic Fountain.");
           else
             addMessage("You wake up from a very bad nightmare. Wow, you are really stressed.");
+
+          if(m.experience >= 50) {
+            auto g = std::make_unique<ghost>();
+            g->where = w; g->hp = hp; g->xp = m.experience/2; m.experience -= g->xp; g->postfix();
+            cr->entities.emplace_back(std::move(g));
+            }
+
+          auto bones = std::make_unique<item>();
+          bones->qty = 10;
+          bones->where = stable_where;
+          bones->id = gold_id;
+          bones->pickup_message = "You got it back.";
+          stable_room->entities.emplace_back(std::move(bones));
           }
         else if(!d.p->qty_filled)
           addMessage("You need to find a Magic Fountain to prepare this potion.");
@@ -386,6 +403,8 @@ void gen_powers() {
     [] (data& d) { if(d.keystate == 1) d.p->flags |= (PARTIAL | IDENTIFIED); }
     ).be_potion(),
 
+  gold_id = isize(powers);
+
   gen_power('g', "gold",
     "For some weird reason, people love gold, and they will give you anything if you give them enough gold.\n\n"
     "This can be used to buy things in shops. "