Fixed trailing whitespaces in all(?) source files of supertux, also fixed some svn...
[supertux.git] / src / badguy / badguy.cpp
index b075dd1..fcf3b1f 100644 (file)
@@ -1,20 +1,73 @@
+//  $Id$
+//
+//  SuperTux
+//  Copyright (C) 2006 Matthias Braun <matze@braunis.de>
+//
+//  This program is free software; you can redistribute it and/or
+//  modify it under the terms of the GNU General Public License
+//  as published by the Free Software Foundation; either version 2
+//  of the License, or (at your option) any later version.
+//
+//  This program is distributed in the hope that it will be useful,
+//  but WITHOUT ANY WARRANTY; without even the implied warranty of
+//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//  GNU General Public License for more details.
+//
+//  You should have received a copy of the GNU General Public License
+//  along with this program; if not, write to the Free Software
+//  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 #include <config.h>
 
-#include "badguy.h"
-#include "camera.h"
+#include "badguy.hpp"
+#include "object/camera.hpp"
+#include "object/tilemap.hpp"
+#include "tile.hpp"
+#include "statistics.hpp"
+#include "game_session.hpp"
+#include "log.hpp"
+#include "level.hpp"
+#include "object/bullet.hpp"
+#include "main.hpp"
+#include "object/particles.hpp"
+#include "random_generator.hpp"
 
 static const float SQUISH_TIME = 2;
 static const float X_OFFSCREEN_DISTANCE = 1600;
 static const float Y_OFFSCREEN_DISTANCE = 1200;
 
-BadGuy::BadGuy()
-  : sprite(0), dir(LEFT), state(STATE_INIT)
+BadGuy::BadGuy(const Vector& pos, const std::string& sprite_name, int layer)
+  : MovingSprite(pos, sprite_name, layer, COLGROUP_DISABLED), countMe(true), dir(LEFT), start_dir(AUTO), frozen(false), ignited(false), draw_dead_script_hint(false), state(STATE_INIT), on_ground_flag(false)
 {
+  start_position = bbox.p1;
+
+  sound_manager->preload("sounds/squish.wav");
+  sound_manager->preload("sounds/fall.wav");
 }
 
-BadGuy::~BadGuy()
+BadGuy::BadGuy(const Vector& pos, Direction direction, const std::string& sprite_name, int layer)
+  : MovingSprite(pos, sprite_name, layer, COLGROUP_DISABLED), countMe(true), dir(direction), start_dir(direction), frozen(false), ignited(false), draw_dead_script_hint(false), state(STATE_INIT), on_ground_flag(false)
 {
-  delete sprite;
+  start_position = bbox.p1;
+
+  sound_manager->preload("sounds/squish.wav");
+  sound_manager->preload("sounds/fall.wav");
+}
+
+BadGuy::BadGuy(const lisp::Lisp& reader, const std::string& sprite_name, int layer)
+  : MovingSprite(reader, sprite_name, layer, COLGROUP_DISABLED), countMe(true), dir(LEFT), start_dir(AUTO), frozen(false), ignited(false), state(STATE_INIT), on_ground_flag(false)
+{
+  start_position = bbox.p1;
+
+  std::string dir_str = "auto";
+  reader.get("direction", dir_str);
+  start_dir = str2dir( dir_str );
+  dir = start_dir;
+
+  reader.get("dead-script", dead_script);
+  draw_dead_script_hint = (dead_script != "");
+
+  sound_manager->preload("sounds/squish.wav");
+  sound_manager->preload("sounds/fall.wav");
 }
 
 void
@@ -25,30 +78,39 @@ BadGuy::draw(DrawingContext& context)
   if(state == STATE_INIT || state == STATE_INACTIVE)
     return;
   if(state == STATE_FALLING) {
-    sprite->draw(context, get_pos(), LAYER_OBJECTS, VERTICAL_FLIP);
+    DrawingEffect old_effect = context.get_drawing_effect();
+    context.set_drawing_effect((DrawingEffect) (old_effect | VERTICAL_FLIP));
+    sprite->draw(context, get_pos(), layer);
+    context.set_drawing_effect(old_effect);
   } else {
-    sprite->draw(context, get_pos(), LAYER_OBJECTS);
+    sprite->draw(context, get_pos(), layer);
+    if (draw_dead_script_hint) {
+      Vector ppos = Vector(systemRandom.randf(bbox.p1.x+8, bbox.p2.x-8), bbox.p2.y);
+      Vector pspeed = Vector(0, -100);
+      Sector::current()->add_object(new Particles(ppos, 44, 46, pspeed, Vector(0,0), 1, Color(.6f, .2f, .2f), 3, .1f, LAYER_OBJECTS+1));
+    }
   }
 }
 
 void
-BadGuy::action(float elapsed_time)
+BadGuy::update(float elapsed_time)
 {
   if(!Sector::current()->inside(bbox)) {
     remove_me();
     return;
   }
   if(is_offscreen()) {
+    if (state == STATE_ACTIVE) deactivate();
     set_state(STATE_INACTIVE);
   }
-  
+
   switch(state) {
     case STATE_ACTIVE:
-      active_action(elapsed_time);
+      active_update(elapsed_time);
       break;
     case STATE_INIT:
     case STATE_INACTIVE:
-      inactive_action(elapsed_time);
+      inactive_update(elapsed_time);
       try_activate();
       break;
     case STATE_SQUISHED:
@@ -62,6 +124,23 @@ BadGuy::action(float elapsed_time)
       movement = physic.get_movement(elapsed_time);
       break;
   }
+
+  on_ground_flag = false;
+}
+
+Direction
+BadGuy::str2dir( std::string dir_str )
+{
+  if( dir_str == "auto" )
+    return AUTO;
+  if( dir_str == "left" )
+    return LEFT;
+  if( dir_str == "right" )
+    return RIGHT;
+
+  //default to "auto"
+  log_warning << "Badguy::str2dir: unknown direction \"" << dir_str << "\"" << std::endl;;
+  return AUTO;
 }
 
 void
@@ -75,14 +154,36 @@ BadGuy::deactivate()
 }
 
 void
-BadGuy::active_action(float elapsed_time)
+BadGuy::save(lisp::Writer& )
+{
+  log_warning << "tried to write out a generic badguy" << std::endl;
+}
+
+void
+BadGuy::active_update(float elapsed_time)
 {
   movement = physic.get_movement(elapsed_time);
 }
 
 void
-BadGuy::inactive_action(float )
+BadGuy::inactive_update(float )
+{
+}
+
+void
+BadGuy::collision_tile(uint32_t tile_attributes)
 {
+  if(tile_attributes & Tile::HURTS) {
+    if (tile_attributes & Tile::FIRE) {
+      if (is_flammable()) ignite();
+    }
+    else if (tile_attributes & Tile::ICE) {
+      if (is_freezable()) freeze();
+    }
+    else {
+      kill_fall();
+    }
+  }
 }
 
 HitResponse
@@ -93,22 +194,39 @@ BadGuy::collision(GameObject& other, const CollisionHit& hit)
     case STATE_INACTIVE:
       return ABORT_MOVE;
     case STATE_ACTIVE: {
-      if(other.get_flags() & FLAG_SOLID)
-        return collision_solid(other, hit);
-
       BadGuy* badguy = dynamic_cast<BadGuy*> (&other);
-      if(badguy)
-        return collision_badguy(*badguy, hit);
+      if(badguy && badguy->state == STATE_ACTIVE && badguy->get_group() == COLGROUP_MOVING) {
+
+       // hit from above?
+       if (badguy->get_bbox().p2.y < (bbox.p1.y + 16)) {
+         if(collision_squished(*badguy)) {
+           return ABORT_MOVE;
+         }
+       }
+
+       return collision_badguy(*badguy, hit);
+      }
 
       Player* player = dynamic_cast<Player*> (&other);
-      if(player)
+      if(player) {
+
+       // hit from above?
+       if (player->get_bbox().p2.y < (bbox.p1.y + 16)) {
+         if(collision_squished(*player)) {
+           return ABORT_MOVE;
+         }
+       }
+
         return collision_player(*player, hit);
+      }
+
+      Bullet* bullet = dynamic_cast<Bullet*> (&other);
+      if(bullet)
+        return collision_bullet(*bullet, hit);
 
       return FORCE_MOVE;
     }
     case STATE_SQUISHED:
-      if(other.get_flags() & FLAG_SOLID)
-        return CONTINUE;
       return FORCE_MOVE;
     case STATE_FALLING:
       return FORCE_MOVE;
@@ -117,24 +235,25 @@ BadGuy::collision(GameObject& other, const CollisionHit& hit)
   return ABORT_MOVE;
 }
 
-HitResponse
-BadGuy::collision_solid(GameObject& , const CollisionHit& )
+void
+BadGuy::collision_solid(const CollisionHit& hit)
 {
-  return FORCE_MOVE;
+  physic.set_velocity_x(0);
+  physic.set_velocity_y(0);
+  update_on_ground_flag(hit);
 }
 
 HitResponse
-BadGuy::collision_player(Player& player, const CollisionHit& hit)
+BadGuy::collision_player(Player& player, const CollisionHit& )
 {
   if(player.is_invincible()) {
     kill_fall();
     return ABORT_MOVE;
   }
-  if(hit.normal.y > .9) {
-    if(collision_squished(player))
-      return ABORT_MOVE;
-  }
-  player.kill(Player::SHRINK);
+
+  if(frozen)
+    unfreeze();
+  player.kill(false);
   return FORCE_MOVE;
 }
 
@@ -145,30 +264,93 @@ BadGuy::collision_badguy(BadGuy& , const CollisionHit& )
 }
 
 bool
-BadGuy::collision_squished(Player& )
+BadGuy::collision_squished(GameObject& )
 {
   return false;
 }
 
+HitResponse
+BadGuy::collision_bullet(Bullet& bullet, const CollisionHit& hit)
+{
+  if (is_frozen()) {
+    if(bullet.get_type() == FIRE_BONUS) {
+      // fire bullet thaws frozen badguys
+      unfreeze();
+      bullet.remove_me();
+      return ABORT_MOVE;
+    } else {
+      // other bullets ricochet
+      bullet.ricochet(*this, hit);
+      return FORCE_MOVE;
+    }
+  }
+  else if (is_ignited()) {
+    if(bullet.get_type() == ICE_BONUS) {
+      // ice bullets extinguish ignited badguys
+      extinguish();
+      bullet.remove_me();
+      return ABORT_MOVE;
+    } else {
+      // other bullets are absorbed by ignited badguys
+      bullet.remove_me();
+      return FORCE_MOVE;
+    }
+  }
+  else if(bullet.get_type() == FIRE_BONUS && is_flammable()) {
+    // fire bullets ignite flammable badguys
+    ignite();
+    bullet.remove_me();
+    return ABORT_MOVE;
+  }
+  else if(bullet.get_type() == ICE_BONUS && is_freezable()) {
+    // ice bullets freeze freezable badguys
+    freeze();
+    bullet.remove_me();
+    return ABORT_MOVE;
+  }
+  else {
+    // in all other cases, bullets ricochet
+    bullet.ricochet(*this, hit);
+    return FORCE_MOVE;
+  }
+}
+
 void
-BadGuy::kill_squished(Player& player)
+BadGuy::kill_squished(GameObject& object)
 {
-  SoundManager::get()->play_sound(IDToSound(SND_SQUISH), get_pos(),
-      player.get_pos());
+  sound_manager->play("sounds/squish.wav", get_pos());
+  physic.enable_gravity(true);
   physic.set_velocity_x(0);
   physic.set_velocity_y(0);
   set_state(STATE_SQUISHED);
-  player.bounce(*this);
+  set_group(COLGROUP_MOVING_ONLY_STATIC);
+  Player* player = dynamic_cast<Player*>(&object);
+  if (player) {
+    if (countMe) Sector::current()->get_level()->stats.badguys++;
+    player->bounce(*this);
+  }
+
+  // start dead-script
+  if(dead_script != "") {
+    std::istringstream stream(dead_script);
+    Sector::current()->run_script(stream, "dead-script");
+  }
 }
 
 void
 BadGuy::kill_fall()
 {
-  SoundManager::get()->play_sound(IDToSound(SND_FALL), this,
-      Sector::current()->player->get_pos());
+  sound_manager->play("sounds/fall.wav", get_pos());
+  if (countMe) Sector::current()->get_level()->stats.badguys++;
   physic.set_velocity_y(0);
   physic.enable_gravity(true);
   set_state(STATE_FALLING);
+
+  // start dead-script
+  if(dead_script != "") {
+    std::istringstream stream(dead_script);
+    Sector::current()->run_script(stream, "dead-script");
+  }
 }
 
 void
@@ -184,18 +366,18 @@ BadGuy::set_state(State state)
       state_timer.start(SQUISH_TIME);
       break;
     case STATE_ACTIVE:
-      flags &= ~FLAG_NO_COLLDET;
+      set_group(COLGROUP_MOVING);
       bbox.set_pos(start_position);
       break;
     case STATE_INACTIVE:
       // was the badguy dead anyway?
-      if(laststate == STATE_SQUISHED || laststate == STATE_SQUISHED) {
+      if(laststate == STATE_SQUISHED || laststate == STATE_FALLING) {
         remove_me();
       }
-      flags |= FLAG_NO_COLLDET;
+      set_group(COLGROUP_DISABLED);
       break;
     case STATE_FALLING:
-      flags |= FLAG_NO_COLLDET;
+      set_group(COLGROUP_DISABLED);
       break;
     default:
       break;
@@ -207,11 +389,11 @@ BadGuy::is_offscreen()
 {
   float scroll_x = Sector::current()->camera->get_translation().x;
   float scroll_y = Sector::current()->camera->get_translation().y;
-     
+
   if(bbox.p2.x < scroll_x - X_OFFSCREEN_DISTANCE
-      || bbox.p1.x > scroll_x + X_OFFSCREEN_DISTANCE
+      || bbox.p1.x > scroll_x + X_OFFSCREEN_DISTANCE + SCREEN_WIDTH
       || bbox.p2.y < scroll_y - Y_OFFSCREEN_DISTANCE
-      || bbox.p1.y > scroll_y + Y_OFFSCREEN_DISTANCE)
+      || bbox.p1.y > scroll_y + Y_OFFSCREEN_DISTANCE + SCREEN_HEIGHT)
     return true;
 
   return false;
@@ -226,36 +408,162 @@ BadGuy::try_activate()
   /* Activate badguys if they're just around the screen to avoid
    * the effect of having badguys suddenly popping up from nowhere.
    */
+  //Badguy left of screen
   if (start_position.x > scroll_x - X_OFFSCREEN_DISTANCE &&
       start_position.x < scroll_x - bbox.get_width() &&
       start_position.y > scroll_y - Y_OFFSCREEN_DISTANCE &&
-      start_position.y < scroll_y + Y_OFFSCREEN_DISTANCE) {
-    dir = RIGHT;
+      start_position.y < scroll_y + SCREEN_HEIGHT + Y_OFFSCREEN_DISTANCE) {
+    if (start_dir != AUTO) dir = start_dir; else dir = RIGHT;
     set_state(STATE_ACTIVE);
     activate();
-  } else if (start_position.x > scroll_x &&
-      start_position.x < scroll_x + X_OFFSCREEN_DISTANCE &&
+  //Badguy right of screen
+  } else if (start_position.x > scroll_x +  SCREEN_WIDTH &&
+      start_position.x < scroll_x + SCREEN_WIDTH + X_OFFSCREEN_DISTANCE &&
       start_position.y > scroll_y - Y_OFFSCREEN_DISTANCE &&
-      start_position.y < scroll_y + Y_OFFSCREEN_DISTANCE) {
-    dir = LEFT;
+      start_position.y < scroll_y + SCREEN_HEIGHT + Y_OFFSCREEN_DISTANCE) {
+    if (start_dir != AUTO) dir = start_dir; else dir = LEFT;
     set_state(STATE_ACTIVE);
     activate();
+  //Badguy over or under screen
   } else if (start_position.x > scroll_x - X_OFFSCREEN_DISTANCE &&
-      start_position.x < scroll_x + X_OFFSCREEN_DISTANCE &&
-      ((start_position.y > scroll_y &&
-        start_position.y < scroll_y + Y_OFFSCREEN_DISTANCE) ||
-       (start_position.y > scroll_y - Y_OFFSCREEN_DISTANCE &&
-        start_position.y < scroll_y))) {
-    dir = start_position.x < scroll_x ? RIGHT : LEFT;
-    set_state(STATE_ACTIVE);
-    activate();
+       start_position.x < scroll_x + SCREEN_WIDTH + X_OFFSCREEN_DISTANCE &&
+       ((start_position.y > scroll_y + SCREEN_HEIGHT &&
+         start_position.y < scroll_y + SCREEN_HEIGHT + Y_OFFSCREEN_DISTANCE) ||
+        (start_position.y > scroll_y - Y_OFFSCREEN_DISTANCE &&
+         start_position.y < scroll_y - bbox.get_height()  ))) {
+     if (start_dir != AUTO) dir = start_dir;
+     else{
+         // if nearest player is to our right, start facing right
+         Player* player = get_nearest_player();
+         if (player && (player->get_bbox().p1.x > get_bbox().p2.x)) {
+             dir = RIGHT;
+         } else {
+                dir = LEFT;
+         }
+     }
+     set_state(STATE_ACTIVE);
+     activate();
   } else if(state == STATE_INIT
       && start_position.x > scroll_x - X_OFFSCREEN_DISTANCE
-      && start_position.x < scroll_x + X_OFFSCREEN_DISTANCE
+      && start_position.x < scroll_x + X_OFFSCREEN_DISTANCE + SCREEN_WIDTH
       && start_position.y > scroll_y - Y_OFFSCREEN_DISTANCE
-      && start_position.y < scroll_y + Y_OFFSCREEN_DISTANCE) {
-    dir = LEFT;
+      && start_position.y < scroll_y + Y_OFFSCREEN_DISTANCE + SCREEN_HEIGHT ) {
+    if (start_dir != AUTO) {
+      dir = start_dir;
+    } else {
+      // if nearest player is to our right, start facing right
+      Player* player = get_nearest_player();
+      if (player && (player->get_bbox().p1.x > get_bbox().p2.x)) {
+       dir = RIGHT;
+      } else {
+       dir = LEFT;
+      }
+    }
     set_state(STATE_ACTIVE);
     activate();
-  } 
+  }
+}
+
+bool
+BadGuy::might_fall(int height)
+{
+  // make sure we check for at least a 1-pixel fall
+  assert(height > 0);
+
+  float x1;
+  float x2;
+  float y1 = bbox.p2.y + 1;
+  float y2 = bbox.p2.y + 1 + height;
+  if (dir == LEFT) {
+    x1 = bbox.p1.x - 1;
+    x2 = bbox.p1.x - 1;
+  } else {
+    x1 = bbox.p2.x + 1;
+    x2 = bbox.p2.x + 1;
+  }
+  return Sector::current()->is_free_of_statics(Rect(x1, y1, x2, y2));
+}
+
+Player*
+BadGuy::get_nearest_player()
+{
+  // FIXME: does not really return nearest player
+
+  std::vector<Player*> players = Sector::current()->get_players();
+  for (std::vector<Player*>::iterator playerIter = players.begin(); playerIter != players.end(); ++playerIter) {
+    Player* player = *playerIter;
+    return player;
+  }
+
+  return 0;
+}
+
+void
+BadGuy::update_on_ground_flag(const CollisionHit& hit)
+{
+  if (hit.bottom) {
+    on_ground_flag = true;
+    floor_normal = hit.slope_normal;
+  }
+}
+
+bool
+BadGuy::on_ground()
+{
+  return on_ground_flag;
+}
+
+Vector
+BadGuy::get_floor_normal()
+{
+  return floor_normal;
+}
+
+void
+BadGuy::freeze()
+{
+  set_group(COLGROUP_MOVING_STATIC);
+  frozen = true;
+}
+
+void
+BadGuy::unfreeze()
+{
+  set_group(COLGROUP_MOVING);
+  frozen = false;
+}
+
+bool
+BadGuy::is_freezable() const
+{
+  return false;
+}
+
+bool
+BadGuy::is_frozen() const
+{
+  return frozen;
+}
+
+void
+BadGuy::ignite()
+{
+  kill_fall();
+}
+
+void
+BadGuy::extinguish()
+{
+}
+
+bool
+BadGuy::is_flammable() const
+{
+  return true;
+}
+
+bool
+BadGuy::is_ignited() const
+{
+  return ignited;
 }