From: Tobias Gläßer <tobi.web@gmx.de>
Date: Wed, 5 May 2004 22:04:48 +0000 (+0000)
Subject: added draw_stretched capability to surface* and tile* classes and moreover built... 
X-Git-Url: https://git.verplant.org/?a=commitdiff_plain;h=361976b834e1e5a266cba08c6ae2c53c503f682d;p=supertux.git

added draw_stretched capability to surface* and tile* classes and moreover built a minimap upon it for the leveleditor. Unfortunately it only works correctly in OpenGL mode, therefore it is disabled in software mode.

SVN-Revision: 1000
---

diff --git a/src/leveleditor.cpp b/src/leveleditor.cpp
index e864c8404..795d26b33 100644
--- a/src/leveleditor.cpp
+++ b/src/leveleditor.cpp
@@ -128,6 +128,7 @@ struct TileOrObject
 /* leveleditor internals */
 static string_list_type level_subsets;
 static bool le_level_changed;  /* if changes, ask for saving, when quiting*/
+static bool show_minimap;
 static int pos_x, cursor_x, cursor_y, fire;
 static int le_level;
 static LevelEditorWorld le_world;
@@ -782,6 +783,41 @@ void le_quit(void)
   }
 }
 
+void le_drawminimap()
+{
+if(le_current_level == NULL)
+return;
+
+int mini_tile_width;
+if(screen->w - 64 > le_current_level->width * 4)
+mini_tile_width = 4;
+else if(screen->w - 64 > le_current_level->width * 2)
+mini_tile_width = 2;
+else
+mini_tile_width = 1;
+int left_offset = (screen->w - 64 - le_current_level->width*mini_tile_width) / 2;
+
+  for (int y = 0; y < 15; ++y)
+    for (int x = 0; x < le_current_level->width; ++x)
+    {
+
+      Tile::draw_stretched(left_offset + mini_tile_width*x, y * 4, mini_tile_width , 4, le_current_level->bg_tiles[y][x]);
+
+      Tile::draw_stretched(left_offset + mini_tile_width*x, y * 4, mini_tile_width , 4, le_current_level->ia_tiles[y][x]);
+
+      Tile::draw_stretched(left_offset + mini_tile_width*x, y * 4, mini_tile_width , 4, le_current_level->fg_tiles[y][x]);
+
+    }
+    
+fillrect(left_offset, 0, le_current_level->width*mini_tile_width, 15*4, 200, 200, 200, 128);
+
+fillrect(left_offset + (pos_x/32)*mini_tile_width, 0, 19*mini_tile_width, 2, 200, 200, 200, 200);
+fillrect(left_offset + (pos_x/32)*mini_tile_width, 0, 2, 15*4, 200, 200, 200, 200);
+fillrect(left_offset + (pos_x/32)*mini_tile_width + 19*mini_tile_width - 2, 0, 2, 15*4, 200, 200, 200, 200);
+fillrect(left_offset + (pos_x/32)*mini_tile_width, 15*4-2, 19*mini_tile_width, 2, 200, 200, 200, 200);
+
+}
+
 void le_drawinterface()
 {
   int x,y;
@@ -798,6 +834,9 @@ void le_drawinterface()
         fillrect(0, y*32, screen->w - 32, 1, 225, 225, 225,255);
     }
   }
+  
+  if(show_minimap && use_gl) // use_gl because the minimap isn't shown correctly in software mode. Any idea? FIXME Possible reasons: SDL_SoftStretch is a hack itsself || an alpha blitting issue SDL can't handle in software mode
+  le_drawminimap();
 
   if(le_selection_mode == CURSOR)
     if(le_current.IsTile())
@@ -1353,22 +1392,28 @@ void le_checkevents()
   }
   if(!Menu::current())
   {
+    show_minimap = false;
+    
     if(le_move_left_bt->get_state() == BUTTON_PRESSED)
     {
       pos_x -= 192;
+      show_minimap = true;
     }
     else if(le_move_left_bt->get_state() == BUTTON_HOVER)
     {
       pos_x -= 32;
+      show_minimap = true;      
     }
 
     if(le_move_right_bt->get_state() == BUTTON_PRESSED)
     {
       pos_x += 192;
+      show_minimap = true;      
     }
     else if(le_move_right_bt->get_state() == BUTTON_HOVER)
     {
       pos_x += 32;
+      show_minimap = true;      
     }
   }
 
diff --git a/src/texture.cpp b/src/texture.cpp
index 3aafe0efa..df33c74ff 100644
--- a/src/texture.cpp
+++ b/src/texture.cpp
@@ -237,6 +237,16 @@ Surface::draw_part(float sx, float sy, float x, float y, float w, float h,  Uint
 }
 
 void
+Surface::draw_stretched(float x, float y, int w, int h, Uint8 alpha, bool update)
+{
+  if (impl)
+  {
+    if (impl->draw_stretched(x, y, w, h, alpha, update) == -2)
+      reload();
+  }
+}
+
+void
 Surface::resize(int w_, int h_)
 {
   if (impl)
@@ -571,6 +581,41 @@ SurfaceOpenGL::draw_part(float sx, float sy, float x, float y, float w, float h,
   (void) update; // avoid warnings
   return 0;
 }
+
+int
+SurfaceOpenGL::draw_stretched(float x, float y, int sw, int sh, Uint8 alpha, bool update)
+{
+  float pw = power_of_two(int(this->w));
+  float ph = power_of_two(int(this->h));
+
+  glBindTexture(GL_TEXTURE_2D, gl_texture);
+
+  glEnable(GL_BLEND);
+  glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
+
+  glColor4ub(alpha, alpha, alpha, alpha);
+
+  glEnable(GL_TEXTURE_2D);
+
+
+  glBegin(GL_QUADS);
+  glTexCoord2f(0, 0);
+  glVertex2f(x, y);
+  glTexCoord2f((float)w / pw, 0);
+  glVertex2f(sw+x, y);
+  glTexCoord2f((float)w / pw, (float)h / ph);  glVertex2f((float)sw+x, (float)sh+y);
+  glVertex2f(sw +x, sh+y);
+  glTexCoord2f(0, (float)h / ph);
+  glVertex2f(x, sh+y);
+  glEnd();
+
+  glDisable(GL_TEXTURE_2D);
+  glDisable(GL_BLEND);
+
+  (void) update; // avoid warnings
+  return 0;
+}
+
 #endif
 
 SurfaceSDL::SurfaceSDL(SDL_Surface* surf, int use_alpha)
@@ -680,6 +725,27 @@ SurfaceSDL::draw_part(float sx, float sy, float x, float y, float w, float h, Ui
   return ret;
 }
 
+int
+SurfaceSDL::draw_stretched(float x, float y, int sw, int sh, Uint8 alpha, bool update)
+{
+  SDL_Rect dest;
+
+  dest.x = (int)x;
+  dest.y = (int)y;
+  dest.w = (int)sw;
+  dest.h = (int)sh;
+
+  if(alpha != 255)
+    SDL_SetAlpha(sdl_surface ,SDL_SRCALPHA,alpha);
+
+  int ret = SDL_SoftStretch(sdl_surface, NULL, screen, &dest);
+
+  if (update == UPDATE)
+    update_rect(screen, dest.x, dest.y, dest.w, dest.h);
+
+  return ret;
+}
+
 SurfaceSDL::~SurfaceSDL()
 {}
 
diff --git a/src/texture.h b/src/texture.h
index 3cd8c2228..53cb3a189 100644
--- a/src/texture.h
+++ b/src/texture.h
@@ -85,7 +85,8 @@ public:
   void draw(float x, float y, Uint8 alpha = 255, bool update = false);
   void draw_bg(Uint8 alpha = 255, bool update = false);
   void draw_part(float sx, float sy, float x, float y, float w, float h,  Uint8 alpha = 255, bool update = false);
-  void Surface::resize(int w_, int h_);
+  void draw_stretched(float x, float y, int w, int h, Uint8 alpha, bool update = false);
+  void resize(int w_, int h_);
 };
 
 /** Surface implementation, all implementation have to inherit from
@@ -107,6 +108,7 @@ public:
   virtual int draw(float x, float y, Uint8 alpha, bool update) = 0;
   virtual int draw_bg(Uint8 alpha, bool update) = 0;
   virtual int draw_part(float sx, float sy, float x, float y, float w, float h,  Uint8 alpha, bool update) = 0;
+  virtual int draw_stretched(float x, float y, int w, int h, Uint8 alpha, bool update) = 0;
   int resize(int w_, int h_);
 
   SDL_Surface* get_sdl_surface() const; // @evil@ try to avoid this function
@@ -123,6 +125,7 @@ public:
   int draw(float x, float y, Uint8 alpha, bool update);
   int draw_bg(Uint8 alpha, bool update);
   int draw_part(float sx, float sy, float x, float y, float w, float h,  Uint8 alpha, bool update);
+  int draw_stretched(float x, float y, int w, int h, Uint8 alpha, bool update);
 };
 
 #ifndef NOOPENGL
@@ -140,6 +143,7 @@ public:
   int draw(float x, float y, Uint8 alpha, bool update);
   int draw_bg(Uint8 alpha, bool update);
   int draw_part(float sx, float sy, float x, float y, float w, float h,  Uint8 alpha, bool update);
+  int draw_stretched(float x, float y, int w, int h, Uint8 alpha, bool update);
 
 private:
   void create_gl(SDL_Surface * surf, GLuint * tex);
diff --git a/src/tile.cpp b/src/tile.cpp
index 5b0a356ec..4e3fa922b 100644
--- a/src/tile.cpp
+++ b/src/tile.cpp
@@ -207,5 +207,29 @@ Tile::draw(float x, float y, unsigned int c, Uint8 alpha)
     }
 }
 
+void
+Tile::draw_stretched(float x, float y, int w, int h, unsigned int c, Uint8 alpha)
+{
+  if (c != 0)
+    {
+      Tile* ptile = TileManager::instance()->get(c);
+      if(ptile)
+        {
+          if(ptile->images.size() > 1)
+            {
+              ptile->images[( ((global_frame_counter*25) / ptile->anim_speed) % (ptile->images.size()))]->draw_stretched(x,y,w,h, alpha);
+            }
+          else if (ptile->images.size() == 1)
+            {
+              ptile->images[0]->draw_stretched(x,y, w, h, alpha);
+            }
+          else
+            {
+              //printf("Tile not dravable %u\n", c);
+            }
+        }
+    }
+}
+
 // EOF //
 
diff --git a/src/tile.h b/src/tile.h
index 91cedc55f..dfc6a238f 100644
--- a/src/tile.h
+++ b/src/tile.h
@@ -80,6 +80,7 @@ public:
   
   /** Draw a tile on the screen: */
   static void draw(float x, float y, unsigned int c, Uint8 alpha = 255);
+  static void draw_stretched(float x, float y, int w, int h, unsigned int c, Uint8 alpha = 255);
 };
 
 struct TileGroup