From: Ingo Ruhnke <grumbel@gmx.de>
Date: Mon, 3 Jul 2006 17:29:29 +0000 (+0000)
Subject: - added sprite rotation
X-Git-Url: https://git.verplant.org/?a=commitdiff_plain;h=49796e6cc2385aea989d7c44c789b406190f2bf7;p=supertux.git

- added sprite rotation
- some spotlight stuff

SVN-Revision: 3854
---

diff --git a/data/images/objects/spotlight/lightcone.png b/data/images/objects/spotlight/lightcone.png
index 6a7e89d52..63393e8c4 100644
Binary files a/data/images/objects/spotlight/lightcone.png and b/data/images/objects/spotlight/lightcone.png differ
diff --git a/data/images/objects/spotlight/lightcone.sprite b/data/images/objects/spotlight/lightcone.sprite
index f38f20867..2ec345cac 100644
--- a/data/images/objects/spotlight/lightcone.sprite
+++ b/data/images/objects/spotlight/lightcone.sprite
@@ -2,5 +2,6 @@
     (action
       (name "default")
       (images "lightcone.png")
+      (hitbox 430 93 0 0)
     )
 )
diff --git a/data/images/objects/spotlight/spotlight_base.sprite b/data/images/objects/spotlight/spotlight_base.sprite
index 7901be0e2..b4ce25a74 100644
--- a/data/images/objects/spotlight/spotlight_base.sprite
+++ b/data/images/objects/spotlight/spotlight_base.sprite
@@ -2,5 +2,6 @@
     (action
       (name "default")
       (images "spotlight_base.png")
+      (hitbox 32 32 0 0)
     )
 )
diff --git a/data/images/objects/spotlight/spotlight_center.sprite b/data/images/objects/spotlight/spotlight_center.sprite
index 996fd4446..96ccda2ef 100644
--- a/data/images/objects/spotlight/spotlight_center.sprite
+++ b/data/images/objects/spotlight/spotlight_center.sprite
@@ -2,5 +2,6 @@
     (action
       (name "default")
       (images "spotlight_center.png")
+      (hitbox 32 32 0 0)
     )
 )
diff --git a/data/images/objects/spotlight/spotlight_lights.sprite b/data/images/objects/spotlight/spotlight_lights.sprite
index 3ba02bbd8..03491bc65 100644
--- a/data/images/objects/spotlight/spotlight_lights.sprite
+++ b/data/images/objects/spotlight/spotlight_lights.sprite
@@ -2,5 +2,6 @@
     (action
       (name "default")
       (images "spotlight_lights.png")
+      (hitbox 32 32 0 0)
     )
 )
diff --git a/data/levels/test/light.stl b/data/levels/test/light.stl
index 15807cf10..77473f13f 100644
--- a/data/levels/test/light.stl
+++ b/data/levels/test/light.stl
@@ -70,14 +70,6 @@
 (reset-points
 )
 (objects
-  (light )
-  (mriceblock (x 666) (y 68) (stay-on-platform #f))
-  (mriceblock (x 892) (y 70) (stay-on-platform #f))
-  (mriceblock (x 1146) (y 69) (stay-on-platform #f))
-  (mriceblock (x 1363) (y 58) (stay-on-platform #f))
-  (mriceblock (x 1180) (y 15) (stay-on-platform #f))
-  (mriceblock (x 939) (y 22) (stay-on-platform #f))
-  (mriceblock (x 703) (y 25) (stay-on-platform #f))
-  (stalactite (x 322) (y 288) (stay-on-platform #f))
+  (spotlight )
 )
 )
diff --git a/src/object/spotlight.cpp b/src/object/spotlight.cpp
index 5778b9e94..e15cdf371 100644
--- a/src/object/spotlight.cpp
+++ b/src/object/spotlight.cpp
@@ -33,6 +33,8 @@ Spotlight::Spotlight(const lisp::Lisp& )
   base      = sprite_manager->create("images/objects/spotlight/spotlight_base.sprite");
   lights    = sprite_manager->create("images/objects/spotlight/spotlight_lights.sprite");
   lightcone = sprite_manager->create("images/objects/spotlight/lightcone.sprite");
+
+  angle = 0.0f;
 }
 
 Spotlight::~Spotlight()
@@ -44,24 +46,33 @@ Spotlight::~Spotlight()
 }
 
 void
-Spotlight::update(float )
+Spotlight::update(float delta)
 {
-  // FIXME: add rotation code
+  angle += delta * 50.0f;
 }
 
 void
 Spotlight::draw(DrawingContext& context)
 {
-  context.push_target();
+  context.push_target(); 
   context.set_target(DrawingContext::LIGHTMAP);
  
   Vector pos(100, 300);
+
+  lightcone->set_angle(angle);
   lightcone->draw(context, pos, 0);
-  // rotate this one 180 degree
+
+  lightcone->set_angle(angle + 180.0f);
   lightcone->draw(context, pos, 0);
   
   context.set_target(DrawingContext::NORMAL);
+
+  lights->set_angle(angle);
+  lights->draw(context, pos, 0);
+
+  base->set_angle(angle);
   base->draw(context, pos, 0);
+
   center->draw(context, pos, 0);
 
   context.pop_target();
diff --git a/src/object/spotlight.hpp b/src/object/spotlight.hpp
index 4948fb674..520ad1a21 100644
--- a/src/object/spotlight.hpp
+++ b/src/object/spotlight.hpp
@@ -35,6 +35,7 @@ public:
   void draw(DrawingContext& context);
 
 private:
+  float   angle;
   Sprite* center;
   Sprite* base;
   Sprite* lights;
diff --git a/src/sprite/sprite.cpp b/src/sprite/sprite.cpp
index 7a32c3fee..e14621f80 100644
--- a/src/sprite/sprite.cpp
+++ b/src/sprite/sprite.cpp
@@ -24,13 +24,15 @@
 #include <cassert>
 #include <stdexcept>
 
+
+#include "video/surface.hpp"
 #include "sprite.hpp"
 #include "video/drawing_context.hpp"
 #include "log.hpp"
 #include "timer.hpp"
 
 Sprite::Sprite(SpriteData& newdata)
-  : data(newdata), frame(0), animation_loops(-1)
+  : data(newdata), frame(0), animation_loops(-1), angle(0.0f)
 {
   action = data.get_action("normal");
   if(!action)
@@ -103,8 +105,9 @@ Sprite::draw(DrawingContext& context, const Vector& pos, int layer)
     log_warning << "frame out of range: " << (int)frame << "/" << get_frames() << " at " << get_name() << "/" << get_action() << std::endl;
   else
     context.draw_surface(action->surfaces[(int)frame],
-            pos - Vector(action->x_offset, action->y_offset),
-            layer + action->z_order);
+                         pos - Vector(action->x_offset, action->y_offset),
+                         angle,
+                         layer + action->z_order);
 }
 
 void
@@ -178,4 +181,16 @@ Sprite::set_fps(float new_fps)
   action->fps = new_fps;
 }
 
+void
+Sprite::set_angle(float a)
+{
+  angle = a;
+}
+
+float
+Sprite::get_angle() const
+{
+  return angle;
+}
 
+/* EOF */
diff --git a/src/sprite/sprite.hpp b/src/sprite/sprite.hpp
index df0f9c718..b97b65cde 100644
--- a/src/sprite/sprite.hpp
+++ b/src/sprite/sprite.hpp
@@ -24,11 +24,11 @@
 #include <assert.h>
 #include <SDL.h>
 
-#include "video/surface.hpp"
 #include "math/vector.hpp"
 #include "math/rect.hpp"
 #include "sprite_data.hpp"
 
+class Surface;
 class DrawingContext;
 
 class Sprite
@@ -86,6 +86,12 @@ public:
   /** return current action's hitbox, relative to 0,0 */
   Rect get_current_hitbox() const;
 
+  /** Set the angle of the sprite rotation in degree */
+  void set_angle(float angle);
+
+  /** Get the angle of the sprite rotation in degree */
+  float get_angle() const;
+
   /** Get current frame */
   int get_frame() const
   { return (int)frame; }
@@ -106,9 +112,10 @@ private:
   SpriteData& data;
 
   float frame;
-  int animation_loops;
+  int   animation_loops;
   float last_ticks;
-
+  float angle;
+  
   SpriteData::Action* action;
 };
 
diff --git a/src/video/drawing_context.cpp b/src/video/drawing_context.cpp
index 8abfdc0c4..5dbad1869 100644
--- a/src/video/drawing_context.cpp
+++ b/src/video/drawing_context.cpp
@@ -70,7 +70,7 @@ DrawingContext::~DrawingContext()
 }
 
 void
-DrawingContext::draw_surface(const Surface* surface, const Vector& position,
+DrawingContext::draw_surface(const Surface* surface, const Vector& position, float angle,
     int layer)
 {
   assert(surface != 0);
@@ -88,12 +88,20 @@ DrawingContext::draw_surface(const Surface* surface, const Vector& position,
   request.layer = layer;
   request.drawing_effect = transform.drawing_effect;
   request.alpha = transform.alpha;
+  request.angle = angle;
   request.request_data = const_cast<Surface*> (surface);  
 
   requests->push_back(request);
 }
 
 void
+DrawingContext::draw_surface(const Surface* surface, const Vector& position, 
+    int layer)
+{
+  draw_surface(surface, position, 0.0f, layer);
+}
+
+void
 DrawingContext::draw_surface_part(const Surface* surface, const Vector& source,
     const Vector& size, const Vector& dest, int layer)
 {
@@ -319,7 +327,7 @@ DrawingContext::do_drawing()
     glLoadIdentity();
 
     // FIXME: Add ambient light support here
-    glClearColor(0, 0, 0, 1);
+    glClearColor(0.5, 0.5, 0.5, 1);
     glClear(GL_COLOR_BUFFER_BIT);
     handle_drawing_requests(lightmap_requests);
     lightmap_requests.clear();
@@ -381,7 +389,10 @@ DrawingContext::handle_drawing_requests(DrawingRequests& requests)
       case SURFACE:
       {
         const Surface* surface = (const Surface*) i->request_data;
-        surface->draw(i->pos.x, i->pos.y, i->alpha, i->drawing_effect);
+        if (i->angle == 0.0f)
+          surface->draw(i->pos.x, i->pos.y, i->alpha, i->drawing_effect);
+        else
+          surface->draw(i->pos.x, i->pos.y, i->alpha, i->angle, i->drawing_effect);
         break;
       }
       case SURFACE_PART:
diff --git a/src/video/drawing_context.hpp b/src/video/drawing_context.hpp
index c65e0fb8f..4ed280688 100644
--- a/src/video/drawing_context.hpp
+++ b/src/video/drawing_context.hpp
@@ -61,9 +61,12 @@ class DrawingContext
 public:
   DrawingContext();
   ~DrawingContext();
-  
+
+  /// Adds a drawing request for a surface into the request list.
+  void draw_surface(const Surface* surface, const Vector& position, 
+                    int layer);
   /// Adds a drawing request for a surface into the request list.
-  void draw_surface(const Surface* surface, const Vector& position,
+  void draw_surface(const Surface* surface, const Vector& position, float angle,
                     int layer);
   /// Adds a drawing request for part of a surface.
   void draw_surface_part(const Surface* surface, const Vector& source,
@@ -187,8 +190,13 @@ private:
     DrawingEffect drawing_effect;
     float alpha;
     Blend blend;
+    float angle;
     
     void* request_data;
+
+    DrawingRequest()
+      : angle(0.0f)
+    {}
     
     bool operator<(const DrawingRequest& other) const
     {
diff --git a/src/video/surface.cpp b/src/video/surface.cpp
index 7414564bc..799372b27 100644
--- a/src/video/surface.cpp
+++ b/src/video/surface.cpp
@@ -130,6 +130,62 @@ static inline void intern_draw(float left, float top, float right, float bottom,
   glEnd();
 }
 
+static inline void intern_draw2(float left, float top, float right, float bottom,
+                                float uv_left, float uv_top,
+                                float uv_right, float uv_bottom,
+                                float angle,
+                                DrawingEffect effect)
+{
+  if(effect & HORIZONTAL_FLIP)
+    std::swap(uv_left, uv_right);
+  if(effect & VERTICAL_FLIP) {
+    std::swap(uv_top, uv_bottom);
+  }
+  
+  float center_x = (left + right) / 2;
+  float center_y = (top + bottom) / 2;
+  
+  float sa = sinf(angle/180.0f*M_PI);
+  float ca = cosf(angle/180.0f*M_PI);
+
+  left  -= center_x;
+  right -= center_x;
+
+  top    -= center_y;
+  bottom -= center_y;
+
+  glBegin(GL_QUADS);
+  glTexCoord2f(uv_left, uv_top);
+  glVertex2f(left*ca - top*sa + center_x,
+             left*sa + top*ca + center_y);
+  
+  glTexCoord2f(uv_right, uv_top);
+  glVertex2f(right*ca - top*sa + center_x,
+             right*sa + top*ca + center_y);
+
+  glTexCoord2f(uv_right, uv_bottom);
+  glVertex2f(right*ca - bottom*sa + center_x,
+             right*sa + bottom*ca + center_y);
+
+  glTexCoord2f(uv_left, uv_bottom);
+  glVertex2f(left*ca - bottom*sa + center_x,
+             left*sa + bottom*ca + center_y);
+  glEnd();
+}
+
+void
+Surface::draw(float x, float y, float alpha, float angle, DrawingEffect effect) const
+{
+  glColor4f(1.0f, 1.0f, 1.0f, alpha);
+  glBindTexture(GL_TEXTURE_2D, texture->get_handle());
+
+  intern_draw2(x, y,
+               x + width, y + height,
+               uv_left, uv_top, uv_right, uv_bottom, 
+               angle,
+               effect);
+}
+
 void
 Surface::draw(float x, float y, float alpha, DrawingEffect effect) const
 {
diff --git a/src/video/surface.hpp b/src/video/surface.hpp
index c1de2993c..8961606ed 100644
--- a/src/video/surface.hpp
+++ b/src/video/surface.hpp
@@ -51,6 +51,7 @@ private:
   float uv_right;
   float uv_bottom;
 
+  void draw(float x, float y, float alpha, float angle, DrawingEffect effect) const;
   void draw(float x, float y, float alpha, DrawingEffect effect) const;
   void draw_part(float src_x, float src_y, float dst_x, float dst_y,
                  float width, float height,