ru:: a few more levels

2025-10-23 18:07:41 +00:00 · 2025-04-19 22:12:26 +02:00
parent 7629b89245
commit 4aa1b971a6
8 changed files with 445 additions and 65 deletions
--- a/rogueviz/ru/classes.cpp
+++ b/rogueviz/ru/classes.cpp
@@ -1,11 +1,13 @@
 namespace rogue_unlike {

+/** a helper structure to mass to powerfun */
 struct data {
  int keystate;
  double d;
  ld modv;
  ld moda;
  int dx;
+  struct power *p;
  };

 using powerfun = hr::function<void(data&)>;
@@ -13,12 +15,15 @@ using powerfun = hr::function<void(data&)>;
 struct power {
  int key;
  string name;
+  string xname;
  string desc;
  string glyph;
  color_t color;
  flagtype flags;
  powerfun pf;
+  int id_status;
  power(int key, string name, string desc, string glyph, color_t color, flagtype f, powerfun pf) : key(key), name(name), desc(desc), glyph(glyph), color(color), flags(f), pf(pf) {
+    id_status = 0;
    }
  };

@@ -132,9 +137,7 @@ struct entity {

  virtual double grav() { return 0.1; }  

-  bool on_floor;
-  bool fallthru;
-  bool on_ice;
+  bool on_floor, fallthru, on_ice, wallhug, on_bounce;

  bool destroyed;
  void kino();
@@ -156,6 +159,11 @@ struct man : public entity {
  int facing;
  int attack_facing;
  int attack_when;
+
+  int on_floor_when;
+  int jump_control, next_jump_control;
+  int coyote_time, next_coyote_time;
+
  man() { facing = 1; attack_facing = 1; }
  double sx() override { return 12; }
  double sy() override { return 12; }
@@ -176,13 +184,15 @@ struct sage : public entity {

 struct item : public entity {
  int id;
+  string pickup_message;
  double sx() override { return 12; }
  double sy() override { return 12; }
  string glyph() override { return powers[id].glyph; }
  color_t color() override { return powers[id].color; }
  void act() override {
+    kino();
    if(intersect(get_pixel_bbox(), m.get_pixel_bbox())) {
-      addMessage("You pick up the " + powers[id].name + ".");
+      addMessage(pickup_message);
      destroyed = true;
      }
    }
--- a/rogueviz/ru/entity.cpp
+++ b/rogueviz/ru/entity.cpp
@@ -30,6 +30,8 @@ void entity::apply_grav() {
 void entity::kino() {
  on_floor = false;
  on_ice = false;
+  wallhug = false;
+  on_bounce = false;

  // ld modv = 60. / game_fps;

@@ -45,8 +47,9 @@ void entity::kino() {
  for(int x = obb.minx; x < obb.maxx; x++) for(int y = obb.maxy; y < jbb.maxy; y++) {
    eWall b = current_room->at(x, y);
    if(walls[b].flags & blocking) {
+      if(walls[b].flags & W_BOUNCY) { vel_y = -vel_y; on_bounce = true; goto again; }
      on_floor = true;
-      if(b == wFrozen) on_ice = true;
+      if(walls[b].flags & W_FROZEN) on_ice = true;
      vel_y /= 2;
      if(abs(vel_y) < 1e-6) vel_y = 0;
      if(freezing()) {
@@ -85,6 +88,7 @@ void entity::kino() {
    if(walls[b].flags & W_BLOCK) {
      if(freezing()) { hit_wall(); }
      vel_x = (vel_x - max<ld>(vel_y, 0)/10) / 2;
+      wallhug = true;
      goto again;
      }
   }
@@ -98,6 +102,7 @@ void entity::kino() {
    if(walls[b].flags & W_BLOCK) {
      if(freezing()) { hit_wall(); }
      vel_x = (vel_x + max<ld>(vel_y, 0)/10) / 2;
+      wallhug = true;
      goto again;
      }
    }
--- a/rogueviz/ru/globals.cpp
+++ b/rogueviz/ru/globals.cpp
@@ -58,16 +58,18 @@ flagtype W_TRANS = 2;
 flagtype W_PLATFORM = 4;
 flagtype W_STAIRCASE = 8;
 flagtype W_PAIN = 16;
+flagtype W_BOUNCY = 32;
+flagtype W_FROZEN = 64;

 constexpr int qwall = 14;

 ruwall walls[qwall] = {
  {"air", ".", 0x40404080, W_TRANS},
  {"wall", "#", 0xFFFFFFFF, W_BLOCK},
-  {"bouncy wall", "#", 0x80FF80FF, W_BLOCK},
+  {"bouncy wall", "#", 0x80FF80FF, W_BLOCK | W_BOUNCY},
  {"spike", "^", 0xC08080FF, W_BLOCK | W_TRANS},
  {"water", "~", 0x0000FFFF, W_BLOCK | W_TRANS},
-  {"frozen water", "#", 0xC0C0FFFF, W_BLOCK},
+  {"frozen water", "#", 0xC0C0FFFF, W_BLOCK | W_FROZEN},
  {"door", "+", 0xC06000FF, W_BLOCK},
  {"smashed door", "'", 0xC06000FF, W_TRANS},
  {"magic fountain", "!", 0x8080C0FF, W_TRANS},
--- a/rogueviz/ru/man.cpp
+++ b/rogueviz/ru/man.cpp
@@ -11,15 +11,21 @@ void man::act() {
  dat.moda = dat.modv * dat.modv;
  dat.dx = 0;  

+  coyote_time = next_coyote_time; next_coyote_time = 0;
+  jump_control = next_jump_control; next_jump_control = 0;
+
+  if(on_floor) on_floor_when = gframeid;
+
  fallthru = false;
   
  handle_powers(dat);

-  if(on_floor && !on_ice) {
+  if((on_floor || jump_control || wallhug) && !on_ice) {
    vel_x = dat.dx * dat.d * dat.modv * 2.5;
    }
-  else {
-    vel_x += dat.dx * dat.d * .05 * dat.moda;
+
+  if(on_bounce) {
+    vel_x += dat.dx * dat.d * dat.modv * 0.02;
    }

  if(dat.dx) facing = dat.dx;
--- a/rogueviz/ru/map.ru
+++ b/rogueviz/ru/map.ru
@@ -2,43 +2,43 @@ ROOM Red Rooster Inn
 # wall
 + door
 - platform
-s staircase
+A staircase
 . air
 MAP
-...................##.............................+-...-+..---...##.............
+...................##.............................+-....+..---...##.............
 ..................##################################----############............
-.................##.....................#.............s.......#....##...........
-................##......................#............s........#.....##..........
-...............##.......................#...........s.........#......##.........
-..............##........................#..........s..........#.......##........
-.............##.........................#.........s...........#........##.......
-............##..........................+........s............+.........##......
-...........##...........................+.......s.............+..........##.....
-..........############################################----##################....
-.........###........................................##.s............##....##....
-..........#b........................................#b..s...........#b....#b....
-..........##........................................##...s..........##....##....
-..........#b....---------..----------..----------...#b....s.........#b....#b....
-..........##........................................##.....s........##....##....
-..........#b........................................#b......s.......#b....#b....
-..........##........................................##.......s......##....##....
-..........#b....---------..----------..----------...#b........s.....#b....#b....
-..........##........................................##.........s....##....##....
-..........#b........................................#b..........s...#b....#b....
-..........##........................................##...........s..+.....##....
-..........#b........................................#b............s.+.....#b....
-..........##....---------..----------..----------...##...........s##########....
-..........#b........................................#b..........s...#b....#b....
-..........##........................................##.........s....##....##....
-..........#b........................................#b........s.....#b....#b....
-..........##....---------..----------..----------...##.......s......##....##....
-..........#b........................................#b......s.......#b....#b....
-..........##........................................##.....s........##....##....
-..........#b........................................#b....s.........#b....#b....
-..........++....---------..----------..----------...++...s..........##....##....
-..........+b........................................+b..s...........#b....#b....
-..........++........................................++.s............++....##....
-..........+b........................................+bs.............+b....#b....
+.................##.....................#..............A......#....##...........
+................##......................#.............A.......#.....##..........
+...............##.......................#............A........#......##.........
+..............##........................#...........A.........#.......##........
+.............##.........................#..........A..........#........##.......
+............##..........................+.........A...........+.........##......
+...........##...........................+........A............+..........##.....
+..........############################################------################....
+.........###........................................##.A..................##....
+--........#b........................................#b..A.................#b....
+..........##........................................##...A................##....
+..........#b.....--------...--------...--------.....#b....A...............#b....
+..........##........................................##.....A..............##....
+..........#b........................................#b......A.............#b....
+..........##........................................##.......A............##....
+--........#b....---------...--------...---------....#b........A...........#b....
+..........##........................................##.........A..........##....
+..........#b........................................#b..........A.........#b....
+..........##........................................##...........A........##....
+..........#b....---------...--------...---------....#b............A.......#b....
+..........##........................................##.............#------##....
+..........#b........................................#b...................A#b....
+..........##........................................##..................A.##....
+..........#b...----------..----------..----------...#b.................A..#b....
+..........##........................................##................A...##....
+..........#b........................................#b...............A....#b....
+..........##........................................##..............A.....##....
+..........#b...----------..----------..----------...#b.............A......#b....
+..........++........................................++............A.......##....
+..........+b........................................+b...........A........#b....
+..........++........................................++..........A.........##....
+..........+b........................................+b.........A..........#b....
 ################################################################################
 #b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b
 ################################################################################
@@ -90,13 +90,14 @@ MAP
 ......................#b-b........#b............#b#b#...........................
 ......................++--........++.............#####..........................
 ......................+b-b........+b..............#b#b#.........................
-......................++--......--++....------......####........................
-......................+b-b......-b+b....-b-b-b......#b#b........................
+......................++--........++....------......####........................
+......................+b-b........+b....-b-b-b......#b#b........................
 ##########################--------########################......................
 #b#b#b#b#b#b#b#b#b#b#b#b#b-b-b-b-b#b#b#b#b#b#b#b#b#b#b#b#b......................
 START 344 274
 ITEM 382 287
 dagger
+You collect your trusty dagger from the drawer.
 OK

 MOVE 1 Red Rooster Inn
@@ -144,6 +145,9 @@ MAP
 ....................................#b#b........................................
 ..................................##############################################
 ..................................#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b
+ITEM 484 123
+steel ring
+You notice a crow nest. There is a shiny ring inside!
 OK

 MOVE 2 Red Rooster Inn
@@ -194,6 +198,9 @@ MAP
 #b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b
 ################################################################################
 #b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b
+ITEM 279 65
+furry ring
+Someone lost a small, weird ring here. Hopefully it will be useful to you.
 OK

 MOVE 2 Forest Path
@@ -387,6 +394,9 @@ MAP
 #b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b..-b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b
 ####################################..--########################################
 #b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b..-b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b
+ITEM 380 131
+strange blue crystal ball
+What a shiny crystal ball!
 OK

 MOVE 2 Dungeon Entrance
@@ -436,3 +446,254 @@ MAP
 #b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b........#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b
 OK

+MOVE 3 Dungeons of Doom
+ROOM First Magic Fountain Cave
+! magic fountain
+# wall
+- staircase
+. air
+A platform
+MAP
+###################.-###########################################################
+###################.-###########################################################
+###################.-###########################################################
+###################.-###########################################################
+###################.-###########################################################
+################....-.........##############################.......#############
+##############......-...........#########################............###########
+############........-.............######################..............##########
+###########.........-................################..................#########
+##########..........-..................###########.....................#########
+##########..........-.....................######.......................#########
+#########...........-..................................................#########
+#########...........-..................................................#########
+##########..........-..................................................#########
+##########..........-..................................................#########
+##########..........-..................................................#########
+###########.........-.................................................##########
+############..........................................................##########
+##############.......................................................###########
+################....###..............................................###########
+##########################..........................................############
+###############################..-..................................############
+################################.-.................................#############
+#################################-................................##############
+#################################-..............................################
+###############################..-.............................#################
+##############################...-........!!.................###################
+###############################..-........!b...............#####################
+################################........######...........#######################
+###################################.....#b#b#b....##AAAA########################
+####################################################----########################
+####################################################-b-b########################
+####################################################----########################
+####################################################-b-b########################
+####################################################----########################
+#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b-b-b#b#b#b#b#b#b#b#b#b#b#b#b
+####################################################----########################
+#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b-b-b#b#b#b#b#b#b#b#b#b#b#b#b
+####################################################----########################
+#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b-b-b#b#b#b#b#b#b#b#b#b#b#b#b
+OK
+
+MOVE 3 First Magic Fountain Cave
+ROOM Watery Death
+# wall
+- staircase
+. air
+A platform
+^ spike
+~ water
+MAP
+#################################################################--#############
+#################################################################--#############
+#################################################################AA#############
+#################################################################--#############
+.................................................................--.........####
+.................................................................--..........###
+.................................................................--..........###
+.............................................................................###
+.............................................................................###
+..##################################################################.........###
+..######################........................###################..........###
+..#####################..........................#################...........###
+.######################............................#####.....................###
+.######################.............................####.....................###
+.######################..............................###.....................###
+#######################....############.....##........##........##...........###
+#######################....#############..............##.......####..........###
+#######################....#####......##...............#.......####..........###
+#######################....#####......##......##.......#......######.........###
+#######################....#####......##...............#......######.........###
+#######################.....####--##..##...............#......######.........###
+#######################.......##-b##..##...............#......######.........###
+#######################........#--##..##......##..............######.........###
+#######################........#-b##..##......................######.........###
+#######################........#--##..##......................######~~~~~~~~~###
+#######################....#####-b##..###.....................######^^^^^^^^^###
+#######################....#####--##..####AA####################################
+#######################....#####-b##...###..####################################
+#######################....#####--##....##AA####################################
+#######################....#####-b##........####################################
+#######################....#####--##........####################################
+#######################....#####-b##############################################
+#######################....#####--##############################################
+#######################....#####-b.#############################################
+######################......####--..############################################
+#b#b#b#b#b#b#b#b#b#b#b......#b#b-b..#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b
+######################......####--..############################################
+#b#b#b#b#b#b#b#b#b#b#b......#b#b-b..#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b
+######################......####--..############################################
+#b#b#b#b#b#b#b#b#b#b#b......#b#b-b..#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b
+OK
+
+MOVE 2 Watery Death
+ROOM Jumping Course
+# wall
+- platform
+. air
+A bouncy wall
+^ spike
+MAP
+################################################################################
+################################################################################
+################################################################################
+################################################################################
+...............################.....#####################.......................
+................########.............#..........................................
+.....................................#..........................................
+.....................................#..........................................
+###########....---------.............#..........................................
+###########................####......#........................................##
+###########...................###....#^.......................................##
+###########..........................#........................................##
+###########..........................#^......................................###
+###########................--------..#.......................................###
+###########..................................................................###
+###########...............................-------...........................####
+###########....----.........................................................####
+###########.................................................................####
+###########.........................................-......................#####
+###########.......-........................................................#####
+###########................................................................#####
+###########............................................######.............######
+###########..........AAAAAA..####....#....................................######
+###########...............................................................######
+###########..............................................................#######
+###########..................................................##..........#######
+###########..............................................................#######
+############............................................................########
+############...................................###.............##.......########
+#############.............................#########.....................########
+###############......................##################.................########
+###############AAAAAAAAAAAAAAAAAAAAAA#####################.............#########
+################################################################################
+################################################################################
+################################################################################
+#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b
+################################################################################
+#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b
+################################################################################
+#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b
+OK
+
+MOVE 2 Jumping Course
+ROOM Treasure Cave
+# wall
+- staircase
+. air
+MAP
+################################################################################
+################################################################################
+################################################################################
+################################################################################
+######################################################################..--......
+#####################################################################...-b......
+##################################################################......--......
+################################################################........-b......
+###############################################################.........--.#####
+##############################################################..........-b.#####
+###########################################################.............--.#####
+#########################################################...............-b.#####
+####################################################....................--..####
+###################################################.....................-b..####
+###############################################.........................--..####
+##############################################..........................-b..####
+##############################################..........................--.#####
+#######################################...####..........................-b######
+#####################################......###...........................#######
+###################################.........##.........................#########
+##################################..........##........................##########
+##################################..........##......................############
+##################################..........##..............####################
+##################################..........##............######################
+##################################..........##..........########################
+##################################..........##........##########################
+##################################..........##.......###########################
+##################################..........##.......###########################
+##################################..........##.......###########################
+##################################....############...###########################
+##################################...................###########################
+##################################...................###########################
+##################################...................###########################
+##################################...................###########################
+##################################....##########################################
+#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b....#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b
+################################################################################
+#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b
+################################################################################
+#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b
+ITEM 324 198
+Golden Shoelaces
+Hopefully these golden shoelaces are valuable.
+OK
+
+MOVE 3 Watery Death
+ROOM Second Magic Fountain
+! magic fountain
+# wall
+- staircase
+. air
+MAP
+##################################################...##-.#######################
+##################################################...##-.#######################
+##################################################...##-.#######################
+##################################################...##-.#######################
+#########################################..............-.#######################
+#########################################..............-.#######################
+#########################################.!!...........-.#######################
+#########################################.!b.............#######################
+################################################################################
+################################################################################
+################################################################################
+################################################################################
+################################################################################
+################################################################################
+################################################################################
+################################################################################
+################################################################################
+################################################################################
+################################################################################
+################################################################################
+################################################################################
+################################################################################
+################################################################################
+################################################################################
+################################################################################
+################################################################################
+################################################################################
+################################################################################
+################################################################################
+################################################################################
+################################################################################
+################################################################################
+################################################################################
+################################################################################
+################################################################################
+#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b
+################################################################################
+#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b
+################################################################################
+#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b#b
+OK
+
--- a/rogueviz/ru/powers.cpp
+++ b/rogueviz/ru/powers.cpp
@@ -2,9 +2,12 @@ namespace rogue_unlike {

 flagtype STARTING = Flag(1);
 flagtype WHILE_PAUSED = Flag(2);
+flagtype TOGGLEABLE = Flag(4);
+flagtype ACTIVE = Flag(8);
+flagtype NEEDS_IDENTIFY = Flag(16);

 vector<power> powers = {
-  power('1', "Potion of Extra Life", 
+  power('1', "Potion of Extra Life",
    "You are really proud of this potion, which, after you die, will let you return to the moment of time when you drank it. "
    "Unfortunately it still requires an ingredient found only in the magical fountains of the Dungeons of Alchemy.\n\n"
    "You can only drink this potion when at a magical fountain. To protect yourself from dying permanently, it is drank "
@@ -13,28 +16,33 @@ vector<power> powers = {
    [] (data& d) { }
    ),

-  power('d', "move right", 
+  power('d', "move right",
    "A special power of human beings, and most other animals, that they earn early in their life.",
    ">", 0xFF0000FF, STARTING,
    [] (data& d) { if(d.keystate & 1) d.dx += 1; }
    ),

-  power('a', "move left", 
+  power('a', "move left",
    "Moving to the right was a mistake? If so, this special power can be used to ignore the consequences. In most cases, at least...",
    "<", 0xFF0000FF, STARTING,
    [] (data& d) { if(d.keystate & 1) d.dx -= 1; }
    ),

-  power('w', "jump", 
+  power('w', "jump",
    "This power can be used to reach higher parts of the world. Its power is quite limited compared to move left and right, but "
    "you expect to find some ways to make it more powerful.",
    "^", 0xFF0000FF, STARTING,
    [] (data& d) {
-      if((d.keystate & 1) && m.on_floor) m.vel_y = -(non_hyperbolic ? 3 : 5) * d.d * d.modv;
+      if(d.keystate & 1) {
+        bool can_jump = m.on_floor;
+        println(hlog, "on_floor_when = ", m.on_floor_when, " gframeid = ", gframeid, " coyote_time = ", m.coyote_time);
+        if(gframeid <= m.on_floor_when + m.coyote_time) can_jump = true;
+        if(can_jump) m.vel_y = -(non_hyperbolic ? 3 : 5) * d.d * d.modv, m.on_floor_when = -1000;
+        }
      }
    ),

-  power('s', "fall", 
+  power('s', "fall",
    "If you are on a platform, this ability can be used to drop down.",
    "v", 0xFF0000FF, STARTING,
    [] (data& d) {
@@ -42,7 +50,7 @@ vector<power> powers = {
      }
    ),

-  power('p', "pause", 
+  power('p', "pause",
    "Becoming an alchemist requires intelligence: thinking quickly to react to surprising effects of experiments. "  
    "To reflect this, you can use this power at any time to give yourself more time to think about the situation.",
    "-", 0xFF0000FF, STARTING | WHILE_PAUSED,
@@ -50,7 +58,7 @@ vector<power> powers = {
      if(d.keystate == 1) cmode = mode::paused;
      }),

-  power(' ', "dagger", 
+  power(' ', "dagger",
    "This sharp dagger is very useful during the preparation of alchemical ingredients, but it works as a basic weapon too.",
    ")", 0xFFFFFFFF, 0, 
    [] (data& d) {
@@ -67,28 +75,113 @@ vector<power> powers = {
        }
      }),

-  power('o', "Poincaré's Crystal Ball",
-    "This crystal ball will not let you predict the future or see things elsewhere, but will let you easily map the "
-    "parts of the world you have seen so far. This artifact is rumored to have been actually created by Beltrami, but "
-    "it was bought and presented to people by the famous wizard Poincaré, and people thought it was Poincaré's creation.",
-    "o", 0x00FF00FF, WHILE_PAUSED,
+  power('o', "strange blue crystal ball", "You feel an urge to look into it.",
+    "o", 0x00FF00FF, WHILE_PAUSED | NEEDS_IDENTIFY,
    [] (data& d) {
+      if(!(d.p->flags & NEEDS_IDENTIFY))
+        d.p->name = "Poincaré's Crystal Ball",
+        d.p->desc = 
+          "This crystal ball will not let you predict the future or see things elsewhere, but will let you easily map the "
+          "parts of the world you have seen so far. This artifact is rumored to have been actually created by Beltrami, but "
+          "it was bought and presented to people by the famous wizard Poincaré, and people thought it was Poincaré's creation.";
      if(d.keystate != 1) return;
+      d.p->flags &=~ NEEDS_IDENTIFY;
      switch_mapmode_to(cmapmode == mapmode::poincare ? mapmode::standard : mapmode::poincare);
      }
    ),

-  power('b', "Beltrami's Crystal Ball",
-    "Created by the ancient wizard Beltrami, this crystal ball will not let you predict the future or see things elsewhere, "
-    "but will let you easily map the parts of the world you have seen so far. Contrary to Poincaré's ball, straight lines are "
-    "mapped faithfully.",
-    "o", 0x00FFFFFF, WHILE_PAUSED,
+  power('b', "strange cyan crystal ball", "You feel an urge to look into it.",
+    "o", 0x00FFFFFF, WHILE_PAUSED | NEEDS_IDENTIFY,
    [] (data& d) {
+      if(!(d.p->flags & NEEDS_IDENTIFY))
+        d.p->name = "Beltrami's Crystal Ball",
+        d.p->desc =
+          "Created by the ancient wizard Beltrami, this crystal ball will not let you predict the future or see things elsewhere, "
+          "but will let you easily map the parts of the world you have seen so far. Contrary to Poincaré's ball, straight lines are "
+          "mapped faithfully.";
      if(d.keystate != 1) return;
+      d.p->flags &=~ NEEDS_IDENTIFY;
      switch_mapmode_to(cmapmode == mapmode::klein ? mapmode::standard : mapmode::klein);
      }
    ),

+  power('c', "furry ring",
+    "This strange ring is too small to put on your finger, but maybe you could put it on your small toe?",
+    "=", 0xe1cbbeFF, TOGGLEABLE | NEEDS_IDENTIFY,
+    [] (data& d) {
+      if(!(d.p->flags & NEEDS_IDENTIFY))
+        d.p->name = "Toe Ring of the Coyote",
+        d.p->desc =
+          "This ring, worn on a toe, will let you still jump after running off a platform. Just make sure that you run off with the foot that you are wearing this ring on!";
+      if(d.keystate == 1) {
+        d.p->flags ^= ACTIVE;
+        if(d.p->flags & ACTIVE) addMessage("You put the " + d.p->name + " on your toe.");
+        else addMessage("You remove the " + d.p->name + " from your toe.");
+        }
+      if(d.p->flags & ACTIVE) m.next_coyote_time += 30;
+      if((d.p->flags & NEEDS_IDENTIFY) && (gframeid <= m.on_floor_when + m.coyote_time) && !m.on_floor) {
+        d.p->flags &=~ NEEDS_IDENTIFY;
+        addMessage("You feel a strange magical force wanting to hold your foot from below.");
+        }
+      }
+    ),
+
+  power('g', "Golden Shoelaces",
+    "These shoelaces might bind you into place or give you freedom... or they could just be mundane shoelaces for rich people... one way to tell.",
+    "=", 0xFFD500FF, TOGGLEABLE,
+    [] (data& d) {
+      if(!(d.p->flags & NEEDS_IDENTIFY))
+        d.p->desc =
+         "Normally you cannot control your jumps while you are flying. These shoelaces allow you some control over your jumps.";
+      if(d.keystate == 1) {
+        d.p->flags ^= ACTIVE;
+        if(d.p->flags & ACTIVE) addMessage("You put the Golden Shoelaces on your boots.");
+        else addMessage("You remove the Golden Shoelaces from your boots.");
+        }
+      if(d.p->flags & ACTIVE) {
+        m.next_jump_control++;
+        auto& ids = d.p->id_status;
+        bool id_up = (!!m.on_floor) == !!(ids & 1);
+        if(id_up) {
+          ids++;
+          if(ids == 2) {
+            addMessage("Something felt strange during this jump.");
+            }
+          if(ids == 4) {
+            addMessage("This jump was strange too.");
+            }
+          if(ids == 6) {
+            addMessage("You feel in control of the laws of physics.");
+            }
+          if(ids == 8) {
+            addMessage("You feel able to control your jumps while flying.");
+            }
+          if(ids == 10) {
+            d.p->flags |= NEEDS_IDENTIFY;
+            addMessage("This control originates from your golden shoelaces.");
+            }
+          }
+        }
+      }
+    ),
+
+  power('r', "steel ring",
+    "Is it safe to put this ring on?",
+    "=", 0xC04040FF, TOGGLEABLE | NEEDS_IDENTIFY,
+    [] (data& d) {
+      if(!(d.p->flags & NEEDS_IDENTIFY))
+        d.p->name = "Ring of Strength",
+        d.p->desc =
+          "This will raise your strength!";
+      if(d.keystate == 1) {
+        d.p->flags ^= ACTIVE;
+        d.p->flags &=~ NEEDS_IDENTIFY;
+        if(d.p->flags & ACTIVE) addMessage("You put the Ring of Strength on your finger.");
+        else addMessage("You remove the Ring of Strength from your finger.");
+        }
+      }
+    ),
+
  };

 void handle_powers(data& d) {
@@ -97,6 +190,7 @@ void handle_powers(data& d) {
    d.keystate = 0;
    if(keyheld(p.key)) d.keystate |= 1;
    if(keywasheld(p.key)) d.keystate |= 2;
+    d.p = &p;
    p.pf(d);
    }
  }
--- a/rogueviz/ru/ru.cpp
+++ b/rogueviz/ru/ru.cpp
@@ -80,6 +80,7 @@ void editmap_frame() {
    dialog::display();
    });
  if(keypressed('f')) floodfill(mousepx / block_x, mousepy / block_y);
+  if(keypressed('t')) { m.where_x = mousepx; m.where_y = mousepy; m.vel_x = 0; m.vel_y = 0; }
  }

 void playing_frame() {
@@ -198,7 +199,7 @@ void run() {
      if(cmode == mode::playing) sync_map();
      render_the_map();
      if(cmode == mode::editmap) dialog::add_key_action('p', [] { println(hlog, "p pressed"); switch_mapmode_to(mapmode::poincare); });
-      if(cmode == mode::editmap) mouseovers = format("coordinates: %d %d", mousepx, mousepy);
+      if(cmode == mode::editmap) mouseovers = format("coordinates: %d %d (%.2lf)", mousepx, mousepy, double(get_scale_at(mousepy)));
      break;

    case mode::inventory:
--- a/rogueviz/ru/save.cpp
+++ b/rogueviz/ru/save.cpp
@@ -115,6 +115,7 @@ void load_room(fhstream& f, cell *c) {
        b->id = -1;
        for(int i=0; i<isize(powers); i++) if(powers[i].name == s) b->id = i;
        if(b->id == -1) println(hlog, "error: unknown item name ", s), b->id = 0;
+        b->pickup_message = scanline_noblank(f);
        r.entities.emplace_back(std::move(b)); 
        }
      else println(hlog, "unknown mapline ", s);