day3 (german!) libs

2015-03-04 09:41:41 +01:00
parent 6b37eb529e
commit e772172cbc
133 changed files with 18241 additions and 0 deletions
@@ -0,0 +1,58 @@
+import processing.opengl.*;
+
+import mathematik.*;
+
+import teilchen.Particle;
+import teilchen.Physics;
+import teilchen.force.Gravity;
+
+/**
+ * this sketch shows how to create and handle multiple particles and remove individual particles.
+ */
+
+Physics mPhysics;
+
+void setup() {
+  size(640, 480, OPENGL);
+  smooth();
+  frameRate(30);
+
+  /* create a particle system */
+  mPhysics = new Physics();
+
+  /* create a gravitational force and add it to the particle system */
+  Gravity myGravity = new Gravity(0, 30, 0);
+  mPhysics.add(myGravity);
+}
+
+void draw() {
+  if (mousePressed) {
+    /* create and add a particle to the system */
+    Particle mParticle = mPhysics.makeParticle();
+    /* set particle to mouse position with random velocity */
+    mParticle.position().set(mouseX, mouseY);
+    mParticle.velocity().set(random(-20, 20), random(-50));
+  }
+
+  /* update the particle system */
+  final float mDeltaTime = 1.0 / frameRate;
+  mPhysics.step(mDeltaTime);
+
+  /* remove particles right before they hit the edge of the screen */
+  for (int i = 0; i < mPhysics.particles().size(); i++) {
+    Particle mParticle = mPhysics.particles(i);
+    if (mParticle.position().y > height * 0.9f) {
+      mPhysics.particles().remove(i);
+    }
+  }
+
+  /* draw all the particles in the system */
+  background(255);
+  stroke(0, 127);
+  fill(0, 32);
+  for (int i = 0; i < mPhysics.particles().size(); i++) {
+    Particle mParticle = mPhysics.particles(i);
+    ellipse(mParticle.position().x, mParticle.position().y, 10, 10);
+  }
+}
+