/**
* Draws a triangle from the given vertex data.
*
* @param aTriangleBuffer The buffer containing the vertex data.
*/
public void addObject(float x, float y, float z, Shape shape) {
PrimProperties a = new PrimProperties(); // new prim properties for size and center
Prim result = null;
switch (shape) {
case BOX:
a.setCenter(new Vector3d(x, y, z));
a.setSize(new Vector3d(.5f, .5f, .5f));
result = new Box(a); // new box object
result.createVertices();
break;
case SPHERE:
a.setCenter(new Vector3d(x, y, z));
a.setSize(new Vector3d(1, 5, 5));
result = new Sphere(a);
result.createVertices();
// new sphere object goes here
break;
case TETRAHEDRON:
a.setCenter(new Vector3d(x, y, z));
a.setSize(new Vector3d(1, 1, 1));
// new tetrahedron object goes here
break;
case LINE:
a.setCenter(new Vector3d(x, y, z));
a.setSize(new Vector3d(1, 1, 1));
}
if (result != null) {
synchronized (this.objects) {
objects.add(result);
}
}
}
public void addStringsToStringtable() {
StringTable stable = serializer.getStringTable();
super.addStringsToStringtable();
for (Relation i : contents) {
for (Member j : i.getMembers()) {
stable.incr(j.getRole());
}
}
}
/* - Initialize data structures for use.
- Times the execution of the greedy algorithm.
- Passes the results to the logger.
*/
public static void main(String[] args) {
logger = new Logger(args);
n = (int) Integer.parseInt(args[0]);
seed = (int) Integer.parseInt(args[1]);
vertices = new LinkedHashMap<Integer, Integer>(n);
g = new Graph(n);
long startTime = System.currentTimeMillis();
generateVertices();
generateAdjacencyMatrix();
Prim.prim(g);
g.preorder();
long endTime = System.currentTimeMillis();
logger.logCoordinates(vertices);
logger.logAdjacencyMatrix(g.getMatrix(), g.mst(), false);
logger.logAdjacencyMatrix(g.getMatrix(), g.mst(), true);
logger.logMSTWeight(g.cost());
logger.logEdgeTour(g.traversal());
logger.logOptimalPath(g.distance(), g.traversal());
logger.logRuntime(endTime - startTime);
}
@Override
public void onDrawFrame(GL10 glUnused) {
GLES20.glClear(GLES20.GL_DEPTH_BUFFER_BIT | GLES20.GL_COLOR_BUFFER_BIT);
// Set our per-vertex lighting program.
GLES20.glUseProgram(mPerVertexProgramHandle);
// Set program handles for cube drawing.
mMVPMatrixHandle = GLES20.glGetUniformLocation(mPerVertexProgramHandle, "u_MVPMatrix");
mMVMatrixHandle = GLES20.glGetUniformLocation(mPerVertexProgramHandle, "u_MVMatrix");
mLightPosHandle = GLES20.glGetUniformLocation(mPerVertexProgramHandle, "u_LightPos");
mPositionHandle = GLES20.glGetAttribLocation(mPerVertexProgramHandle, "a_Position");
mColorHandle = GLES20.glGetAttribLocation(mPerVertexProgramHandle, "a_Color");
mNormalHandle = GLES20.glGetAttribLocation(mPerVertexProgramHandle, "a_Normal");
mTextureCoordinateHandle =
GLES20.glGetAttribLocation(mPerVertexProgramHandle, "a_TexCoordinate");
// Set the active texture unit to texture unit 0.
GLES20.glEnable(GLES20.GL_TEXTURE_2D);
// Bind the texture to this unit.
GLES20.glBindTexture(GLES20.GL_TEXTURE_2D, mTextureArray.get(0));
drawPlane(this.mGroundVertices, this.mGroundColors, this.mGroundNormals, mGroundTextures);
// bind the next texture
GLES20.glBindTexture(GLES20.GL_TEXTURE_2D, mTextureArray.get(1));
drawPlane(this.mOceanVertices, this.mOceanColors, this.mOceanNormals, mOceanTextures);
// bind the next texture
GLES20.glBindTexture(GLES20.GL_TEXTURE_2D, mTextureArray.get(3));
drawCube();
// Get changes in finger positions and add to total for moving and rotating
totalDiffX += diffX;
totalDiffY += diffY;
angleX += dx;
angleY += dy;
// to prevent the user from looking more than straight up and less and straight down.
if (Math.abs(angleY) > 1.5f) {
angleY -= dy;
}
// move the model matrix by finger distance changes for pinch zoom movement.
Matrix.translateM(mModelMatrix, 0, this.diffX, this.diffY, 0);
// rotate camera based on finger movements
this.mCamera.look.x = (float) Math.cos(angleX);
this.mCamera.look.y = (float) Math.sin(angleX);
this.mCamera.look.z = (float) Math.tan(angleY);
updateLookAt();
// reset variables so that movement stops after finger movement stops
this.dx = 0;
this.dy = 0;
this.diffX = 0;
this.diffY = 0;
// update the lookAt coordinates
updateLookAt();
// redraw each object in the array.
GLES20.glBindTexture(GLES20.GL_TEXTURE_2D, mTextureArray.get(2));
synchronized (this.objects) {
for (Prim p : this.objects) {
p.draw(
this.mPositionHandle,
this.mColorHandle,
this.mNormalHandle,
this.mTextureCoordinateHandle);
}
}
GLES20.glDisable(GLES20.GL_TEXTURE_2D);
}
@Override
public boolean onTouch(View v, MotionEvent event) {
// x and y coordinates of touch location on screen.
float x = event.getX();
float y = event.getY();
switch (event.getAction()) {
case MotionEvent.ACTION_DOWN:
// Initial pointer down
mode = LOOK;
Vector3d near = unProject(x, y, 0, mMVPMatrix, this.width, this.height);
Vector3d far = unProject(x, y, 1, mMVPMatrix, this.width, this.height);
Vector3d pickingRay = far.subtract(near);
Vector3d normal = new Vector3d(0, 0, 1);
if (normal.dot(pickingRay) != 0 && pickingRay.z < 0) {
Vector3d diff = new Vector3d(-totalDiffX, -totalDiffY, 0);
float t = (-2f - normal.dot(diff)) / (normal.dot(pickingRay));
pickingRay = diff.add(pickingRay.scale(t));
boolean b = false;
synchronized (this.objects) {
int counter = 0; // counter for checking current position.
List<Integer> positions =
new ArrayList<
Integer>(); // array for storing object array positions that you've "touched"
for (Prim p : this.objects) {
Vector3d objectCenter = p.getCenter();
float d =
(((objectCenter.subtract(near)).cross(objectCenter.subtract(far))).length())
/ ((far.subtract(near)).length());
if (d < p.getSize().x || d < p.getSize().y || d < p.getSize().z) {
positions.add(
counter); // add position value to array for checking if closest to camera than
// others you touched.
b =
true; // stops from creating new objects so you don't erase and create at the
// same time.
}
counter++;
}
if (positions.size() > 0) {
Vector3d currentCenter; // variable where current center will be stored.
currentCenter =
objects
.get(positions.get(0))
.getCenter(); // get the first center for distance checking
double minDistance =
Math.sqrt(
(double)
(Math.pow((double) currentCenter.x - totalDiffX, 2.0)
+ Math.pow((double) currentCenter.y - totalDiffY, 2.0)
+ Math.pow(
(double) currentCenter.z,
2.0))); // distance formula of the first position. the first
// position is initially set as the smallest.
int finalMin =
0; // int value where the smallest distance position is stored for removal
for (int i = 1;
i < positions.size();
i++) // starting at one because 0 was already checked before the loop
{
currentCenter =
objects
.get(positions.get(i))
.getCenter(); // get the current center of the object for testing distance.
double currentDistance =
Math.sqrt(
(double)
(Math.pow((double) currentCenter.x - totalDiffX, 2.0)
+ Math.pow((double) currentCenter.y - totalDiffY, 2.0)
+ Math.pow(
(double) currentCenter.z,
2.0))); // distance formula for the current position. This is
// tested to see if smaller than the one before it.
if (currentDistance < minDistance) {
minDistance =
currentDistance; // min becomes the current because current is smaller
finalMin = i; // current position is stored as smallest distance position.
}
}
this.objects.remove(
(int) positions.get(finalMin)); // remove object closest to camera that you touch.
}
counter = 0;
}
if (b == false
&& pickingRay.x < 254.75
&& pickingRay.x > .25
&& pickingRay.y > .25
&& pickingRay.y < 254.75) {
addObject(pickingRay.x, pickingRay.y, pickingRay.z + .25f, Shape.BOX);
}
}
break;
case MotionEvent.ACTION_POINTER_DOWN:
// non-primary pointer down
oldDist = spacing(event);
// check distance as one finger may be reported as multiple ones very close together
if (oldDist > 10f) {
mode = ZOOM;
}
break;
case MotionEvent.ACTION_MOVE:
if (event.getPointerCount() >= 2 && this.mode != ZOOM) {
oldDist = spacing(event);
// check distance as one finger may be reported as multiple ones very close together
if (oldDist > 10f) {
mode = ZOOM;
}
}
if (mode == ZOOM) {
float newDist = spacing(event);
float diff = newDist - oldDist;
if (newDist > 10f && Math.abs(diff) > 20f) {
Vector3d lookAtVector = this.mCamera.look.subtract(this.mCamera.eye);
lookAtVector = lookAtVector.normalize();
lookAtVector = lookAtVector.scale(diff * .00025f);
this.diffX -= lookAtVector.x;
this.diffY -= lookAtVector.y;
}
} else if (mode == LOOK) {
float dx = x - mPreviousX;
float dy = y - mPreviousY;
this.dx = dx * .008f;
this.dy = dy * .008f;
updateLookAt();
}
break;
case MotionEvent.ACTION_POINTER_UP:
if (event.getPointerCount() == 1) {
mode = LOOK;
}
case MotionEvent.ACTION_UP:
mode = NONE;
break;
}
mPreviousX = x;
mPreviousY = y;
return true;
}