From 5c83b03e600a26076dc2aecc9fe51fcd845b224a Mon Sep 17 00:00:00 2001
From: Ricardo Cruz <rick2@aeiou.pt>
Date: Fri, 27 Aug 2004 11:20:27 +0000
Subject: [PATCH] Added z order support and draw_part().

SVN-Revision: 1848
---
 lib/special/sprite.cpp | 23 +++++++++++++++--------
 lib/special/sprite.h   |  7 +++++++
 2 files changed, 22 insertions(+), 8 deletions(-)

diff --git a/lib/special/sprite.cpp b/lib/special/sprite.cpp
index d27ae05b7..c6a3289a8 100644
--- a/lib/special/sprite.cpp
+++ b/lib/special/sprite.cpp
@@ -72,6 +72,7 @@ Sprite::parse_action(LispReader& lispreader)
       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;
@@ -92,6 +93,7 @@ Sprite::init_defaults(Action* act)
 {
   act->x_offset = 0;
   act->y_offset = 0;
+  act->z_order = 0;
   act->fps = 10;
 
   start_animation(-1);
@@ -215,20 +217,25 @@ Sprite::draw(DrawingContext& context, const Vector& pos, int layer,
               << "/" << get_action_name() << std::endl;
   else
     context.draw_surface(action->surfaces[(int)frame],
-            pos - Vector(action->x_offset, action->y_offset), layer, drawing_effect);
+            pos - Vector(action->x_offset, action->y_offset), layer + action->z_order,
+            drawing_effect);
 }
 
-#if 0
 void
-Sprite::draw_part(float sx, float sy, float x, float y, float w, float h)
+Sprite::draw_part(DrawingContext& context, const Vector& source, const Vector& size,
+                  const Vector& pos, int layer, Uint32 drawing_effect)
 {
-  time = SDL_GetTicks();
-  unsigned int frame = get_current_frame();
+  update();
 
-  if (frame < surfaces.size())
-    surfaces[frame]->draw_part(sx, sy, x - x_offset, y - y_offset, w, h);
+  if((int)frame >= get_frames() || (int)frame < 0)
+    std::cerr << "Warning: frame out of range: " << (int)frame
+              << "/" << get_frames() << " at sprite: " << get_name()
+              << "/" << 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);
 }
-#endif
 
 int
 Sprite::get_width()
diff --git a/lib/special/sprite.h b/lib/special/sprite.h
index 184e2f60f..86b4a06af 100644
--- a/lib/special/sprite.h
+++ b/lib/special/sprite.h
@@ -39,8 +39,11 @@ namespace SuperTux
         {
         std::string name;
 
+        /** Position correction */
         int x_offset;
         int y_offset;
+        /** Drawing priority in queue */
+        int z_order;
 
         /** Frames per second */
         float fps;
@@ -58,6 +61,10 @@ namespace SuperTux
       void draw(DrawingContext& context, const Vector& pos, int layer,
                 Uint32 drawing_effect = NONE_EFFECT);
 
+      void draw_part(DrawingContext& context, const Vector& source,
+                    const Vector& size, const Vector& pos, int layer,
+                    Uint32 drawing_effect = NONE_EFFECT);
+
       /** Set action (or state) */
       void set_action(std::string act);
 
-- 
2.11.0