QPixmap Ghost::ghostEyesImage(int size)
{
QPoint eyesOrigin;
switch (m_direction) {
case Unit::Up: eyesOrigin = QPoint(21,27);
break;
case Unit::Down: eyesOrigin = QPoint(21,49);
break;
case Unit::Left: eyesOrigin = QPoint(14,42);
break;
case Unit::Right: eyesOrigin = QPoint(28,42);
break;
}
QImage res(":/textures/images/Ghost_Eyes.png");
QColor eyeColor(0,0,128,255);
for(int i=0; i<12; i++)
{
for(int j=0; j<12; j++)
{
res.setPixel(eyesOrigin.x()+i, eyesOrigin.y()+j, eyeColor.rgba());
res.setPixel(eyesOrigin.x()+i+41, eyesOrigin.y()+j, eyeColor.rgba());
}
}
QSize tmp(size, size);
if(res.size()!=tmp) res = res.scaled(tmp);
return QPixmap::fromImage(res);
}
//Called to update the display.
//You should call glutSwapBuffers after all of your rendering to display what you rendered.
//If you need continuous updates of the screen, call glutPostRedisplay() at the end of the function.
void display()
{
const float epsilon = 0.001f; // necessary for the trackball viewer
const float period = 10.0; // repeat time in seconds of movement
float fElapsedTime = glutGet(GLUT_ELAPSED_TIME) / 1000.0f; // time since programs started in seconds
float timeParameter = (float) fmodf(fElapsedTime, period)/period; // parameterized time
//float timeParameter = 0.0f; // no animation - also comment out the glutPostRedisplay() at the bottom of this function
glClearColor(0.0f, 0.0f, 0.2f, 0.0f); // unshaded objects will show up on this almost-black background
glClearDepth(1.0f);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
// light stuff
glUniform3f(PhongShade.cameraSpaceLightPosUnif, 0.0, 0.0, 100.0); // this is a headlight
glUniform4f(PhongShade.lightIntensityUnif, 1.0f, 1.0f, 1.0f, 1.0f); // light color
// compute trackball interface (world to camera) transform --------------------------------
// don't change any of this (unless you can make it better!)
glm::mat4 camMatrix;
glm::mat4 cam2Matrix;
camMatrix = glm::translate(camMatrix, glm::vec3(modelTrans[0], modelTrans[1], modelTrans[2]));
// in the middle of a left-button drag
if (trackballMove) {
// check to make sure axis is not zero vector
if (!(-epsilon < axis[0] && axis[0] < epsilon && -epsilon < axis[1] && axis[1] < epsilon && -epsilon < axis[2] && axis[2] < epsilon)) {
cam2Matrix = glm::rotate(cam2Matrix, angle, glm::vec3(axis[0], axis[1], axis[2]));
cam2Matrix = cam2Matrix * (glm::mat4(trackballXform[0], trackballXform[1], trackballXform[2], trackballXform[3],
trackballXform[4], trackballXform[5], trackballXform[6], trackballXform[7],
trackballXform[8], trackballXform[9], trackballXform[10], trackballXform[11],
trackballXform[12], trackballXform[13], trackballXform[14], trackballXform[15]));
glm::mat4 tempM = cam2Matrix;
// copy current transform back into trackball matrix
for (int i=0; i<4; i++) {
for (int j=0; j<4; j++)
trackballXform[i*4 + j] = tempM[i][j];
}
}
}
camMatrix = camMatrix * (glm::mat4(objectXformPtr[0], objectXformPtr[1], objectXformPtr[2], objectXformPtr[3],
objectXformPtr[4], objectXformPtr[5], objectXformPtr[6], objectXformPtr[7],
objectXformPtr[8], objectXformPtr[9], objectXformPtr[10], objectXformPtr[11],
objectXformPtr[12], objectXformPtr[13], objectXformPtr[14], objectXformPtr[15]));
// end of world to camera transform -----------------------------------------------
// pass it on to the shaders
glUniformMatrix4fv(PhongShade.worldToCameraMatrixUnif, 1, GL_FALSE, glm::value_ptr(camMatrix));
// draw objects - pass in the transform matrix to use
glm::mat4 modelMatrix; //starts with identity
drawFirstSphere(modelMatrix); // modelMatrix is not modified by the draw functions
drawTopSphere(modelMatrix, sqrColor(timeParameter), timeParameter);
drawMiddleSphere(modelMatrix, linearColor(timeParameter), timeParameter);
drawMiddleSphere2(modelMatrix, linearColor(timeParameter), timeParameter);
eyeRight(modelMatrix, eyeColor(timeParameter), timeParameter);
eyeLeft(modelMatrix, eyeColor(timeParameter), timeParameter);
drawMouth(modelMatrix, linearColor(timeParameter), timeParameter);
drawBottomSphere(modelMatrix, sineColor(timeParameter), timeParameter);
drawThirdSphere(modelMatrix);
glutSwapBuffers();
glutPostRedisplay();
}