diff options
| author | Phillip <pacardon@u.washington.edu> | 2011-03-09 00:01:30 +0000 |
|---|---|---|
| committer | Phillip <pacardon@u.washington.edu> | 2011-03-09 00:01:30 +0000 |
| commit | d79a1c6abbf5ce378208dd1fb7ed594ca64c595c (patch) | |
| tree | 23695da445a920275ccb5cf94518f3f67919509d /src | |
| parent | 83d6f2ea8aaf45203389320a8e7218c23545b818 (diff) | |
Diffstat (limited to 'src')
| -rw-r--r-- | src/tesseract/objects/Cannon.java | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/src/tesseract/objects/Cannon.java b/src/tesseract/objects/Cannon.java new file mode 100644 index 0000000..c1ddce6 --- /dev/null +++ b/src/tesseract/objects/Cannon.java @@ -0,0 +1,74 @@ +package tesseract.objects;
+
+import javax.media.j3d.IndexedQuadArray;
+import javax.media.j3d.PointArray;
+import javax.media.j3d.Transform3D;
+import javax.vecmath.Point3f;
+import javax.vecmath.Vector3f;
+
+public class Cannon extends PhysicalObject{
+
+ public Cannon(Vector3f thePosition, float mass) {
+ super(thePosition, mass);
+ // TODO Auto-generated constructor stub
+ buildShape(14, 7f, 2f, 2f);
+ }
+
+ private void buildShape(final int theDivisions, final float length,
+ final float breechRadius, final float gunThickness) {
+ Point3f[] coordinates = new Point3f[theDivisions * 4];
+ final float barrelRadius = breechRadius + gunThickness;
+ final float arcAngle = (float) (Math.PI * 2.0);
+ final float gunDivAngle = 2 * (float) Math.PI / theDivisions;
+ Transform3D center = new Transform3D();
+
+ for (int i = 0; i < theDivisions; i++) {
+ coordinates[i] = new Point3f(breechRadius
+ * (float) Math.cos(i * gunDivAngle), 0f, breechRadius
+ * (float) Math.sin(i * gunDivAngle));
+ }
+
+ for (int i = theDivisions; i < theDivisions * 2; i++) {
+ coordinates[i] = new Point3f(breechRadius
+ * (float) Math.cos(i * gunDivAngle), length, breechRadius
+ * (float) Math.sin(i * gunDivAngle));
+ }
+
+ for (int i = theDivisions * 2; i < theDivisions * 3; i++) {
+ coordinates[i] = new Point3f(barrelRadius
+ * (float) Math.cos(i * gunDivAngle), 0f, barrelRadius
+ * (float) Math.sin(i * gunDivAngle));
+ }
+
+ for (int i = theDivisions * 3; i < theDivisions * 4; i++) {
+ coordinates[i] = new Point3f(barrelRadius
+ * (float) Math.cos(i * gunDivAngle), length, barrelRadius
+ * (float) Math.sin(i * gunDivAngle));
+ }
+
+ IndexedQuadArray geometry = new IndexedQuadArray(theDivisions * 4, PointArray.COORDINATES,
+ theDivisions * 4);
+ int topInsideStop = 0;
+ int index = 0;
+ for (int i = 0; i < theDivisions; i++) {
+ geometry.setCoordinate(index++, coordinates[i]);
+ geometry.setCoordinate(index++, coordinates[(theDivisions + i) % (2 * theDivisions)]);
+ geometry.setCoordinate(index++, coordinates[(theDivisions + i + 1) % (2 * theDivisions)]);
+ geometry.setCoordinate(index++, coordinates[(i + 1) % theDivisions]);
+ }
+
+ for (int i = theDivisions * 2; i < theDivisions * 3; i++) {
+ geometry.setCoordinate(index++, coordinates[i]);
+ geometry.setCoordinate(index++, coordinates[(theDivisions + i) % (4 * theDivisions)]);
+ geometry.setCoordinate(index++, coordinates[(theDivisions + i + 1) % (4 * theDivisions)]);
+ geometry.setCoordinate(index++, coordinates[((i + 1) % theDivisions) + theDivisions * 2]);
+ }
+
+ for (int i = 0; i < theDivisions; i++) {
+ geometry.setCoordinate(index++, coordinates[i]);
+ geometry.setCoordinate(index++, coordinates[i + 3 * theDivisions]);
+ geometry.setCoordinate(index++, coordinates[(1 + i + 3 * theDivisions) % theDivisions]);
+ geometry.setCoordinate(index++, coordinates[(i + 1) % theDivisions]);
+ }
+ }
+}
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