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Particle.pde

@@ -0,0 +1,33 @@
+class Particle {
+    float x, y, z;
+    float speed;
+    color col;
+    float permOffset;
+    float offset = 0;
+    Block block;
+
+    Particle(float x, float y, float z, Block block, float speed, float treeSize) {
+        this.x = x;
+        this.y = y;
+        this.z = z;
+        this.block = block;
+        this.speed = speed;
+        this.permOffset = -150 - treeSize;
+    }
+
+    void update() {
+        offset -= speed;
+        if (offset < -100) offset = 0;
+    }
+
+    void display(float posZ) {
+        pushMatrix();
+        translate(x, y, posZ + permOffset + offset);
+        fill(block.treeColor);
+        float scaleDown = map(offset, 0, -150, 1, 10);
+        box(10/scaleDown, 8/scaleDown, 8/scaleDown);
+        scale(offset);
+        popMatrix();
+        update();
+    }
+}