Changeset 7650 in orxonox.OLD for branches/atmospheric_engine/src

Timestamp:

May 17, 2006, 2:58:18 PM (18 years ago)

Author:

hdavid

Message:

branches/atmospheric_engine: work on the snow effect

Location:

branches/atmospheric_engine/src/lib/graphics/effects

Files:

• snow_effect.cc (modified) (6 diffs)
• snow_effect.h (modified) (2 diffs)

branches/atmospheric_engine/src/lib/graphics/effects/snow_effect.cc

@@ -21 +21 @@
 #include "debug.h"
 
+#include "p_node.h"
 #include "state.h"
 #include "sprite_particles.h"
@@ -89 +90 @@
   angle = 0;
   randomAngle = 0.3;
+  alpha = 0.5;
   snowSize = Vector2D(1200, 1200);
   snowCoord = Vector(100, 600, 200);
+  
+  activated = false;
 }
 
@@ -98 +102 @@
 {
   PRINTF(0)("Activating SnowEffect\n");
+  activated = true;
   
   SnowEffect::snowParticles = new SpriteParticles(particles);
@@ -107 +112 @@
   SnowEffect::snowParticles->setRadius(1.0, snowRadius, randomRadius);
   SnowEffect::snowParticles->setMass(0, snowMass, randomMass);
-  SnowEffect::snowParticles->setColor(0,1, 1, 1,.5);
-  SnowEffect::snowParticles->setColor(.5, .6, .6, .6, .2);
+  SnowEffect::snowParticles->setColor(0,1, 1, 1, alpha);
+  SnowEffect::snowParticles->setColor(.5, .6, .6, .6, alpha/2);
   SnowEffect::snowParticles->setColor(1, .0, .0, .0, .0);
 
@@ -126 +131 @@
 {
   PRINTF(0)("Deactivating SnowEffect\n");
+  activated = false;
   
   this->emitter->setSystem(NULL);
@@ -146 +152 @@
 void SnowEffect::tick(float dt)
 {
+  float distance = (State::getCameraNode()->getAbsCoor() - snowCoord).len();
+  if( activated && ( distance > 0.6*snowSize.x || distance > 0.6*snowSize.y) )
+    this->deactivate();
+  if( !activated && ( distance < 0.6*snowSize.x || distance < 0.6*snowSize.y ))
+    this->activate();
 }
 

branches/atmospheric_engine/src/lib/graphics/effects/snow_effect.h

@@ -15 +15 @@
 class SpriteParticles;
 class PlaneEmitter;
+class PNode;
 
 class SnowEffect : public WeatherEffect
@@ -55 +56 @@
     float velocity, randomVelocity;
     float angle, randomAngle;
+    float alpha;
     Vector snowCoord;
     Vector2D snowSize;
 
+    bool activated;
+    
     static SpriteParticles* snowParticles;