properly implement invisible blocks
[supertux.git] / lib / special / sprite.cpp
index c6a3289..080cc3e 100644 (file)
 //  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 <iostream>
 #include <cmath>
+#include <cassert>
+#include <stdexcept>
 
 #include "../app/globals.h"
 #include "../app/setup.h"
 #include "../special/sprite.h"
 #include "../video/drawing_context.h"
 
-using namespace SuperTux;
-
-Sprite::Sprite(lisp_object_t* cur)
+namespace SuperTux
 {
-  for(; !lisp_nil_p(cur); cur = lisp_cdr(cur))
-    {
-    std::string token = lisp_symbol(lisp_car(lisp_car(cur)));
-    lisp_object_t* data = lisp_car(lisp_cdr(lisp_car(cur)));
-    LispReader reader(lisp_cdr(lisp_car(cur)));
-
-    if(token == "name")
-      name = lisp_string(data);
-    else if(token == "action")
-      parse_action(reader);
-    else
-      std::cerr << "Warning: Unknown sprite field: " << token << std::endl;
-    }
-
-  if(name.empty())
-    Termination::abort("Error: Sprite wihtout name.", "");
-  if(actions.empty())
-    Termination::abort("Error: Sprite wihtout actions.", "");
-}
 
-Sprite::~Sprite()
+Sprite::Sprite(SpriteData& newdata)
+  : data(newdata)
 {
-  for(Actions::iterator i_act = actions.begin(); i_act != actions.end(); ++i_act)
-    {
-    for(std::vector<Surface*>::iterator i_sur = i_act->second->surfaces.begin();
-        i_sur != i_act->second->surfaces.end(); ++i_sur)
-      delete *i_sur;
-    delete i_act->second;
-    }
+  action = data.actions.begin()->second;
+  reset();
 }
 
-void
-Sprite::parse_action(LispReader& lispreader)
+Sprite::Sprite(const Sprite& other)
+  : data(other.data), frame(other.frame),
+    animation_loops(other.animation_loops), last_tick(other.last_tick),
+    action(other.action), next_action(other.next_action)
 {
-  action = new Action;
-
-  init_defaults(action);
-
-  if(!lispreader.read_string("name", action->name))
-    if(!actions.empty())
-      Termination::abort("Error: If there are more than one action, they need names!", "");
-  lispreader.read_int("x-offset", action->x_offset);
-  lispreader.read_int("y-offset", action->y_offset);
-  lispreader.read_int("z-order", action->z_order);
-  lispreader.read_float("fps",     action->fps);
-
-  std::vector<std::string> images;
-  if(!lispreader.read_string_vector("images", images))
-    Termination::abort("Sprite contains no images: ", action->name.c_str());
-
-  for(std::vector<std::string>::size_type i = 0; i < images.size(); ++i)
-    {
-      action->surfaces.push_back(
-          new Surface(datadir + "/images/" + images[i], true));
-    }        
-
-  actions[action->name] = action;
 }
 
-void
-Sprite::init_defaults(Action* act)
+Sprite::~Sprite()
 {
-  act->x_offset = 0;
-  act->y_offset = 0;
-  act->z_order = 0;
-  act->fps = 10;
-
-  start_animation(-1);
 }
 
 void
-Sprite::set_action(std::string act)
+Sprite::set_action(std::string name)
 {
-if(!next_action.empty() && animation_loops > 0)
-  {
-  next_action = act;
-  return;
-  }
-Actions::iterator i = actions.find(act);
-if(i == actions.end())
-  {
-  std::cerr << "Warning: Action '" << act << "' not found on Sprite '" << name << "'\n";
-  return;
+  if(!next_action.empty() && animation_loops > 0) {
+    next_action = name;
+    return;
   }
-action = i->second;
+  SpriteData::Action* newaction = data.get_action(name);
+  if(!action)
+    return;
+
+  action = newaction;
 }
 
 void
 Sprite::start_animation(int loops)
 {
-reset();
-animation_loops = loops;
+  reset();
+  animation_loops = loops;
 }
 
 void
 Sprite::reset()
 {
-frame = 0;
-last_tick = SDL_GetTicks();
-animation_reversed = false;
-next_action.clear();
+  frame = 0;
+  last_tick = SDL_GetTicks();
+  animation_reversed = false;
+  animation_loops = -1;
+  next_action.clear();
 }
 
 bool
 Sprite::check_animation()
 {
-return animation_loops;
+  return animation_loops;
 }
 
 void
 Sprite::reverse_animation(bool reverse)
 {
-animation_reversed = reverse;
+  animation_reversed = reverse;
 
-if(animation_reversed)
-  frame = get_frames()-1;
-else
-  frame = 0;
+  if(animation_reversed)
+    frame = get_frames()-1;
+  else
+    frame = 0;
 }
 
 void
 Sprite::update()
 {
-if(animation_loops == 0)
-  return;
-
-float frame_inc = (action->fps/1000.0) * (SDL_GetTicks() - last_tick);
-last_tick = SDL_GetTicks();
+  if(animation_loops == 0)
+  {
+    if(frame >= get_frames() || frame < 0)
+      frame = 0;
+    return;
+  }
 
-if(animation_reversed)
-  frame -= frame_inc;
-else
-  frame += frame_inc;
+  float frame_inc = (action->fps/1000.0) * (SDL_GetTicks() - last_tick);
+  last_tick = SDL_GetTicks();
 
-if(animation_reversed)
-  {
-  float excedent = frame - 0;
-  if((int)excedent < 0 || excedent >= get_frames())
-    {  // last case can happen when not used reverse_animation()
-    frame = get_frames() - 1;
-    if(animation_loops > 0)
+  if(animation_reversed)
+    frame -= frame_inc;
+  else
+    frame += frame_inc;
+
+  if(animation_reversed) {
+    if(frame < 0 || frame >= (float)get_frames()) {
+      // last case can happen when not used reverse_animation()
+      float excedent = frame - 0;
+      frame = get_frames() - 1;
+      if(animation_loops > 0)
       {
-      animation_loops--;
-      if(animation_loops == 0 && !next_action.empty())
+        animation_loops--;
+        if(animation_loops == 0 && !next_action.empty())
         {
-        set_action(next_action);
-        start_animation(-1);
+          set_action(next_action);
+          start_animation(-1);
         }
       }
 
-    if(fabsf(excedent) < get_frames())
-      frame += excedent;
+      if(fabsf(excedent) < get_frames())
+        frame += excedent;
     }
   }
-else
+  else
   {
-  float excedent = frame - action->surfaces.size();
-  if((int)excedent >= 0)
+    if(frame >= (float)get_frames())
     {
-    frame = 0;
-    if(animation_loops > 0)
+      float excedent = frame - get_frames();
+      frame = 0;
+      if(animation_loops > 0)
       {
-      animation_loops--;
-      if(animation_loops == 0 && !next_action.empty())
+        animation_loops--;
+        if(animation_loops == 0 && !next_action.empty())
         {
-        set_action(next_action);
-        start_animation(-1);
+          set_action(next_action);
+          start_animation(-1);
         }
       }
 
-    if(excedent < get_frames())
-      frame += excedent;
+      if(excedent < get_frames())
+        frame += excedent;
     }
   }
 }
@@ -209,22 +160,24 @@ void
 Sprite::draw(DrawingContext& context, const Vector& pos, int layer,
     Uint32 drawing_effect)
 {
+  assert(action != 0);
   update();
 
   if((int)frame >= get_frames() || (int)frame < 0)
     std::cerr << "Warning: frame out of range: " << (int)frame
-              << "/" << get_frames() << " at sprite: " << get_name()
+              << "/" << get_frames() << " at " << get_name()
               << "/" << get_action_name() << std::endl;
   else
     context.draw_surface(action->surfaces[(int)frame],
-            pos - Vector(action->x_offset, action->y_offset), layer + action->z_order,
-            drawing_effect);
+            pos - Vector(action->x_offset, action->y_offset),
+            layer + action->z_order, drawing_effect);
 }
 
 void
-Sprite::draw_part(DrawingContext& context, const Vector& source, const Vector& size,
-                  const Vector& pos, int layer, Uint32 drawing_effect)
+Sprite::draw_part(DrawingContext& context, const Vector& source,
+    const Vector& size, const Vector& pos, int layer, Uint32 drawing_effect)
 {
+  assert(action != 0);
   update();
 
   if((int)frame >= get_frames() || (int)frame < 0)
@@ -233,20 +186,22 @@ Sprite::draw_part(DrawingContext& context, const Vector& source, const Vector& s
               << "/" << get_action_name() << std::endl;
   else
     context.draw_surface_part(action->surfaces[(int)frame], source, size,
-            pos - Vector(action->x_offset, action->y_offset), layer + action->z_order,
-            drawing_effect);
+            pos - Vector(action->x_offset, action->y_offset),
+            layer + action->z_order, drawing_effect);
 }
 
 int
-Sprite::get_width()
+Sprite::get_width() const
 {
   return action->surfaces[get_frame()]->w;
 }
 
 int
-Sprite::get_height()
+Sprite::get_height() const
 {
   return action->surfaces[get_frame()]->h;
 }
 
+}
+
 /* EOF */