Changeset 3785 in orxonox.OLD for orxonox/branches/textEngine/src/animation.cc

Timestamp:

Apr 13, 2005, 1:20:46 AM (19 years ago)

Author:

bensch

Message:

orxonox/branches/textEngine: linear works
example shows an indicator of how fast the framerate is.

File:

• orxonox/branches/textEngine/src/animation.cc (modified) (3 diffs)

orxonox/branches/textEngine/src/animation.cc

@@ -27 +27 @@
   // initialize a beginning KeyFrame, that will be deleted afterwards
   this->bHasKeys = false;
+  AnimKeyFrame* tmpKeyFrame = new AnimKeyFrame;
+  tmpKeyFrame->value = 0.0;
+  tmpKeyFrame->duration = 1.0;
+  keyFrameList->add(tmpKeyFrame);
 
-
-  this->animFunc = &Anim::random;
+  // setting default values
+  this->animFunc = &Anim::linear;
+  this->currentKeyFrame = tmpKeyFrame;
+  this->nextKeyFrame = tmpKeyFrame;
 }
 
@@ -52 +58 @@
 void Anim::addKeyFrame(float value, float duration, ANIM_FUNCTION animFunc)
 {
-  if (!bHasKeys)
+  // some small check
+  if (duration <= 0.0)
+    duration = 1.0;
+  
+
+  AnimKeyFrame* tmpKeyFrame;
+    
+  if (bHasKeys)
     {
-      this->keyFrameList->remove(this->keyFrameList->firstElement());
+      tmpKeyFrame = new AnimKeyFrame;
+      if (this->currentKeyFrame == this->nextKeyFrame)
+        this->nextKeyFrame = tmpKeyFrame;
+    }
+  else
+    {
+      tmpKeyFrame = this->keyFrameList->firstElement();
       bHasKeys = true;
     }
-  AnimKeyFrame* tmpKeyFrame = new AnimKeyFrame;
   tmpKeyFrame->value = value;
   tmpKeyFrame->duration = duration;
@@ -94 +112 @@
 
 // animation functions
-float Anim::random(float time)
+float Anim::random(float time) const
 {
   return (float)rand()/(float)RAND_MAX;
 }
 
-float Anim::constant(float time)
+float Anim::constant(float time) const
+{
+  return this->currentKeyFrame->value;
+}
+
+float Anim::linear(float time) const 
+{
+  return this->nextKeyFrame->value - (this->nextKeyFrame->value - this->currentKeyFrame->value) 
+    * (time*100.0 / this->currentKeyFrame->duration);
+  //  PRINTF(0)("value is %f, %p %p\n", val, this->currentKeyFrame, this->nextKeyFrame);
+  //  return val;
+}
+
+float Anim::sine(float time) const
 {
 
 }
-
-float Anim::linear(float time)
-{
-
-}
-
-float Anim::sine(float time)
-{
-
-}