ObjectNode* genBranch(int branching, int maxDepth, int density, float scaleFactor, float seasonProb,
const mat4& initTrans, const mat4& initSkew, int currentDepth)
{
mat4 tempTrans = distort(0.2, 1.0, 0.2);
mat4 tempMove = translate(0.0, 1.0, 0.0);
mat4 tempSkew = distort(5.0, 1.0, 5.0);
mat4 tempRotate = rX(M_PI/2.0);
ObjectNode* branch = new ObjectNode(nullptr, initTrans, initSkew);
branch->addChild(*new ObjectNode( Global::treeCone, tempMove * tempTrans * tempRotate,
tempSkew * tempRotate ) );
if (currentDepth < maxDepth) {
const int branchFact = branching;
mat4 tempRotate = rZ(M_PI/6.0);
mat4 rotMat = rY(2.0 * M_PI / branchFact);
tempTrans = scale(scaleFactor);
tempMove = translate(0.0, 1.5, 0.0);
mat4 twist = rY(M_PI / branchFact) * tempMove;
mat4 loopTemp = rotMat * tempRotate;
for (int i = 0; i < branchFact; ++i) {
loopTemp = rotMat * loopTemp;
branch->addChild( *genBranch( branching, maxDepth, density, scaleFactor, seasonProb,
twist * loopTemp * tempTrans, loopTemp, currentDepth + 1 ) );
}
}
return branch;
}
ObjectNode* genHouseOut(const mat4& initTrans, const mat4& initSkew) {
ObjectNode* house = new ObjectNode(nullptr, initTrans, initSkew);
const float height = 0.5;
house->addChild( *new ObjectNode( Global::houseCube, translate(0.0, -height, 0.0) *
distort(1.0, 0.01, 1.0) ) );
house->addChild( *new ObjectNode( Global::houseCube, translate(0.0, 0.0, -1.0) *
distort(1.0, height, 0.01) ) );
house->addChild( *new ObjectNode( Global::houseCube, translate(1.0, 0.0, 0.0) *
distort(0.01, height, 1.0) ) );
house->addChild( *new ObjectNode( Global::houseCube, translate(-1.0, 0.0, 0.0) *
distort(0.01, height, 1.0) ) );
house->addChild( *new ObjectNode( Global::houseCube, translate(0.58, 0.0, 1.0) *
distort(0.42, height, 0.01) ) );
house->addChild( *new ObjectNode( Global::houseCube, translate(-0.58, 0.0, 1.0) *
distort(0.42, height, 0.01) ) );
house->addChild( *new ObjectNode( Global::houseCube, translate(0.0, 0.35, 1.0) *
distort(0.25, 0.3 * height, 0.01) ) );
house->addChild( *new ObjectNode( Global::houseCube, translate(-0.29, -0.16, 1.13) *
rY(M_PI/4.0) * distort(0.2, 0.7 * height, 0.01), rY(M_PI/4.0) ) );
house->addChild( *new ObjectNode( Global::housePyramid,
translate(0.0, 0.85, 0.0) * scale(1.7) * distort(1.0, 0.2, 1.0) *
rY(M_PI/4.0) * rX(M_PI/2.0),
distort(1.0, 5.0, 1.0) * rY(M_PI/4.0) * rX(M_PI/2.0) ) );
return house;
}
ObjectNode* genTree(int branching, int maxDepth, int density, float scaleFactor, float seasonProb, float height,
const mat4& initTrans, const mat4& initSkew)
{
ObjectNode* tree = new ObjectNode(nullptr,initTrans, initSkew);
mat4 tempRotate = rX(M_PI/2.0);
mat4 tempTrans = distort(1.0, 0.2, 1.0);
mat4 tempSkew = distort(1.0, 5.0, 1.0);
mat4 tempMove = translate(0.0, -2.0, 0.0);
tree->addChild( *new ObjectNode( Global::treeCone, tempMove * tempTrans * tempRotate,
tempSkew * tempRotate) );
tempTrans = distort(0.3, height, 0.3);
tempMove[1][3] = height - 2.0;
tree->addChild( *new ObjectNode(Global::treeCylinder, tempMove * tempTrans * tempRotate, tempRotate) );
tempMove[1][3] = height * 0.6 + 0.1;
tree->addChild( *genBranch(branching, maxDepth, density, scaleFactor, seasonProb, tempMove) );
mat4 rotMat = rY(2.0 * M_PI/4.0);
tempSkew = rZ(M_PI/4.0);
for (int i = 0; i < 4; ++i) {
tempSkew = rotMat * tempSkew;
tree->addChild( *genBranch(branching, maxDepth, density, scaleFactor, seasonProb,
tempMove * tempSkew, tempSkew) );
}
tree->addChild( *genLeafBunch(M_PI/2.0, 3.0, 0.5, density,
translate(0.0, height, 0.0) * scale(0.7)) );
return tree;
}
bool isCollision( std::vector<Room> & rooms, uint32_t x, uint32_t y, uint32_t w, uint32_t h )
{
for( std::vector<Room>::iterator rIter = rooms.begin(), end = rooms.end() ; rIter != end ; ++rIter )
{
uint32_t & rX( rIter->x );
uint32_t & rY( rIter->y );
uint32_t & rW( rIter->w );
uint32_t & rH( rIter->h );
bool roomOkay;
if( (rX + rW + 1 ) < x || rX > (x + w + 1 ) )
{
roomOkay = true;
}
else if( (rY + rH + 1) < y || rY > (y + h + 1 ) )
{
roomOkay = true;
}
else
{
roomOkay = false;
}
if( !roomOkay )
{
return true;
}
}
return false;
}
EnvironmentNode* genHouseIn(const mat4& initTrans, const mat4& initSkew) {
EnvironmentNode* house = new EnvironmentNode(BoolState(1u, 0u), initTrans, initSkew);
house->addChild(
*new LightNode(Lightsource("pointLight", false), translate(0.0, -0.35, -0.87)) );
const float height = 0.5;
house->addChild( *new ObjectNode(Global::houseSquare, translate(0.0, -height + 0.02, 0.0) *
rX(M_PI/2.0), rX(M_PI/2.0) ) );
house->addChild( *new ObjectNode(Global::houseSquare, translate(0.0, height - 0.02, 0.0) *
rX(M_PI/2.0), rX(M_PI/2.0) ) );
house->addChild( *new ObjectNode( Global::houseSquare, translate(0.0, 0.0, -0.98) *
distort(1.0, height, 1.0) ) );
house->addChild( *new ObjectNode( Global::houseSquare, translate(0.98, 0.0, 0.0) *
distort(1.0, height, 1.0) * rY(M_PI/2.0), rY(M_PI/2.0) ) );
house->addChild( *new ObjectNode( Global::houseSquare, translate(-0.98, 0.0, 0.0) *
distort(1.0, height, 1.0) * rY(M_PI/2.0), rY(M_PI/2.0) ) );
house->addChild( *new ObjectNode( Global::houseSquare, translate(0.58, 0.0, 0.98) *
distort(0.42, height, 1.0) ) );
house->addChild( *new ObjectNode( Global::houseSquare, translate(-0.58, 0.0, 0.98) *
distort(0.42, height, 1.0) ) );
house->addChild( *new ObjectNode( Global::houseSquare, translate(0.0, 0.35, 0.98) *
distort(0.25, 0.3 * height, 1.0) ) );
house->addChild( *new ObjectNode( Global::houseCube, translate(-0.2, 0.0, 0.6) *
distort(0.01, height, 0.4) ) );
house->addChild( *new ObjectNode( Global::houseCube, translate(0.2, 0.0, 0.6) *
distort(0.01, height, 0.4) ) );
house->addChild( *new ObjectNode( Global::houseCube, translate(-0.75, 0.0, 0.2) *
distort(0.25, height, 0.01) ) );
house->addChild( *new ObjectNode( Global::houseCube, translate(0.75, 0.0, 0.2) *
distort(0.25, height, 0.01) ) );
house->addChild( *genFirePlace( translate(0.0, -0.35, -0.95) *
distort(1.5, 1.25, 0.2) * scale(0.25) ));
house->addChild( *genBed(translate(-0.5, -0.37, 0.85) * scale(0.3)) );
house->addChild( *genBed(translate(0.65, -0.37, 0.85) * scale(0.3)) );
house->addChild( *genChair(translate(-0.3, -0.4, -0.35) *
rY(M_PI/4.0) * scale(0.2), rY(M_PI/4.0)) );
house->addChild( *genChair(translate(0.25, -0.4, -0.3) *
rY(M_PI/2.0) * scale(0.2), rY(M_PI/2.0)) );
house->addChild( *genChair(translate(0.8, -0.4, -0.4) *
rY(M_PI) * distort(1.0, 1.0, 3.0) * scale(0.2), rY(M_PI)) );
return house;
}
ObjectNode* genForest(int numTrees, float minR, float maxR, const mat4& initTrans, const mat4& initSkew) {
ObjectNode* forest = new ObjectNode(nullptr, initTrans, initSkew);
mat4 rotMat = rY(0.3 * numTrees + 2.0 * M_PI / numTrees);
mat4 tempPosit = MatMath::ID;
for (int i = 0; i < numTrees; ++i, rotMat *= rotMat) {
tempPosit = rotMat * translate(0.0, 0.0, -randNum(minR, maxR));
forest->addChild( *genTree( 3, 2, 150, 0.5, 0.5, 1.6, tempPosit, tempPosit ) );
}
return forest;
}
ObjectNode* genLeafBunch(float rho, float radius, float prob, int numLeaves,
const mat4& initTrans, const mat4& initSkew)
{
ObjectNode* bunch = new ObjectNode(nullptr, initTrans, initSkew);
mat4 rotMat = MatMath::ID;
mat4 tempTrans = translate(0.0, radius, 0.0);
mat4 tempRotate = rY( randNum(0.0, 2.0 * M_PI) ) *
rZ(randNum(0.0, rho) );
ObjectNode* temp = new ObjectNode(nullptr, tempRotate * tempTrans, tempRotate);
temp->addChild(*genLeaf(prob));
bunch->addChild(*temp);
for (int i = 1; i < numLeaves; ++i) {
rotMat = rY( randNum(0.0, 2.0 * M_PI) ) *
rX( randNum(0.0, M_PI/2.0) );
tempRotate = rY( randNum(0.0, 2.0 * M_PI) ) *
rX( randNum(0.0, rho) );
temp = new ObjectNode(nullptr, tempRotate * tempTrans * rotMat, tempRotate * rotMat);
temp->addChild(*genLeaf(prob));
bunch->addChild(*temp);
}
return bunch;
}
// This test is mainly for coverage purposes.
void TestDumpState()
{
// Create a VanDerPol system
VanDerPolOde ode_system;
// Dump the state variables
std::string state = ode_system.DumpState("This is a test.");
TS_ASSERT_EQUALS(state, "This is a test.\nState:\n\tx:10 m\n\tv:10 m/s\n");
// Dump user-supplied values
std::vector<double> rY(2);
rY[0] = 0.0;
rY[1] = 1.0;
state = ode_system.DumpState("Test 2.", rY, 0);
TS_ASSERT_EQUALS(state, "Test 2.\nAt independent variable (usually time) = 0\nState:\n\tx:0 m\n\tv:1 m/s\n");
state = ode_system.DumpState("Test 2.", rY);
TS_ASSERT_EQUALS(state, "Test 2.\nState:\n\tx:0 m\n\tv:1 m/s\n");
}
void mouseMotion(int p, int q)
//rotates the camera if the left mouse button is pressed down.
//assumes user is clicking and pulling on a plane parallel to the projection plane,
//and approximates the angle of rotation by using the sphere tangent to that plane.
//for the plane at z = -1, that is the unit sphere, along Global::which all arcs are equal
//to the angle that subtends them, meaning that the distance moved by the mouse
//along the tangent plane can be directly plugged in as the angle of rotation
{
if (Global::leftMouse) {
float delta_p = 3.0 * Global::FOV * (M_PI/180.0) * (p - Global::pRef) / Global::viewDim;
float delta_q = 2.5 * Global::FOV * (M_PI/180.0) * (q - Global::qRef) / Global::viewDim;
mat4 delta_yaw = rY(delta_p);
Global::pitchTheta =
(Global::pitchTheta + delta_q > -M_PI/2.0 && Global::pitchTheta + delta_q < M_PI/2.0) ?
Global::pitchTheta + delta_q
: Global::pitchTheta;
Global::yawMat = delta_yaw * Global::yawMat;
Global::positMat = delta_yaw * Global::positMat;
Global::pitchMat = rX(Global::pitchTheta);
Global::pRef = p, Global::qRef = q;
glutPostRedisplay();
}
}
mat4 driveCar(float theta) {
return rY(theta);
}
