void GWindow::redrawRectangle(const R2Rectangle& r) {
I2Point leftTop = map(R2Point(r.left(), r.top()));
I2Point rightBottom = map(R2Point(r.right(), r.bottom()));
redrawRectangle(
I2Rectangle(
leftTop,
rightBottom.x - leftTop.x,
rightBottom.y - leftTop.y
)
);
}
void GWindow::fillRectangle(const R2Rectangle& r) {
I2Point leftTop = map(R2Point(r.left(), r.top()));
I2Point rightBottom = map(R2Point(r.right(), r.bottom()));
//+++ printf("leftTop = (%d, %d), rightBottom = (%d, %d)\n",
//+++ leftTop.x, leftTop.y, rightBottom.x, rightBottom.y);
::XFillRectangle(
m_Display,
m_Window,
m_GC,
leftTop.x, leftTop.y,
rightBottom.x - leftTop.x, rightBottom.y - leftTop.y
);
}
GWindow::GWindow(
const I2Rectangle& frameRect,
const char* title /* = 0 */
):
m_Window(0),
m_GC(0),
m_WindowPosition(frameRect.left(), frameRect.top()),
m_IWinRect(I2Point(0, 0), frameRect.width(), frameRect.height()),
m_RWinRect(),
m_ICurPos(0, 0),
m_RCurPos(0., 0.),
m_xcoeff(1.),
m_ycoeff(1.),
m_WindowCreated(false),
m_bgPixel(0),
m_fgPixel(0),
m_bgColorName(0),
m_fgColorName(0),
m_BorderWidth(DEFAULT_BORDER_WIDTH)
{
GWindow( // Call another constructor
frameRect,
R2Rectangle(
R2Point(0., 0.),
(double) frameRect.width(), (double) frameRect.height()
),
title
);
}
/////////////////////////////////////////////////////////////
// Main: initialize X, create an instance of MyWindow class,
// and start the message loop
int main() {
// Initialize X stuff
if (!GWindow::initX()) {
printf("Could not connect to X-server.\n");
exit(1);
}
MyWindow w;
w.createWindow(
I2Rectangle( // Window frame rectangle:
I2Point(10, 10), // left-top corner
GWindow::screenMaxX()/2, // width
GWindow::screenMaxY()/2 // height
),
R2Rectangle( // Coordinate rectangle:
R2Point(-12., -9.), // bottom-right corner
24., 18. // width, height
),
"Graph of Function" // Window title
);
w.setBackground("lightGray");
GWindow::messageLoop();
GWindow::closeX();
return 0;
}
R2Point
operator/(const R2Point& point, double a)
{
assert(a != 0);
return R2Point(point.X() / a,
point.Y() / a);
}
void Terrain::Create(void)
{
node = new R3Node();
node->transformation = R3identity_matrix;
R3Material::Params matParams;
matParams.textureName = "mars.jpg";
matParams.kd = R3Rgb(0.6, 0.6, 0.6, 1);
matParams.ks = R3Rgb(0.3, 0.3, 0.3, 1);
R3Material *mat = new R3Material(matParams);
node->AddChild(new R3Node(Patch(R3Point(0,-3, 0),
R2Point(TERRAIN_SIZE,TERRAIN_SIZE), R2Point(TERRAIN_DPS,TERRAIN_DPS)),
mat, R3identity_matrix));
//node->AddChild(new R3Node(Patch(R3Point(10,-3, 0), R2Point(10,10), R2Point(60,60)), NULL, R3identity_matrix));
globals.scene->root->AddChild(node);
}
R2Point
operator*(const R3Matrix& a, const R2Point& p)
{
// Multiply matrix by point
RNCoord x = a.m[0][0] * p.X() + a.m[0][1] * p.Y() + a.m[0][2];
RNCoord y = a.m[1][0] * p.X() + a.m[1][1] * p.Y() + a.m[1][2];
return R2Point(x, y);
}
void R3Rectangle::
Draw(const R3DrawFlags draw_flags) const
{
// Check if box is empty
if (IsEmpty()) return;
/* Get texture coordinates */
static R2Point texcoords[4] = {
R2Point(0.0, 0.0),
R2Point(1.0, 0.0),
R2Point(1.0, 1.0),
R2Point(0.0, 1.0)
};
/* Get box corner points */
R3Point corners[4];
corners[0] = Corner(RN_NN_QUADRANT);
corners[1] = Corner(RN_PN_QUADRANT);
corners[2] = Corner(RN_PP_QUADRANT);
corners[3] = Corner(RN_NP_QUADRANT);
// Draw surface
if (draw_flags[R3_SURFACES_DRAW_FLAG]) {
if (draw_flags[R3_SURFACE_NORMALS_DRAW_FLAG])
R3LoadNormal(Normal());
R3BeginPolygon();
for (int j = 0; j < 4; j++) {
if (draw_flags[R3_VERTEX_TEXTURE_COORDS_DRAW_FLAG])
R3LoadTextureCoords(texcoords[j]);
R3LoadPoint(corners[j]);
}
R3EndPolygon();
}
// Draw edges
if (draw_flags[R3_EDGES_DRAW_FLAG]) {
R3BeginLoop();
for (int i = 0; i < 4; i++)
R3LoadPoint(corners[i]);
R3EndLoop();
}
}
R2Point GWindow::invMap(const I2Point& p) const {
return R2Point(
double(p.x - m_IWinRect.left()) *
m_RWinRect.width() / m_IWinRect.width()
+ m_RWinRect.left(),
double(m_IWinRect.bottom() - p.y) *
m_RWinRect.height() / m_IWinRect.height()
+ m_RWinRect.bottom()
);
}
int
R3InitCircle()
{
// Initialize circle angles and points
for (int i = 0; i < R3circle_npoints; i++) {
R3circle_angles[i] = ((RNScalar) i * RN_TWO_PI) / (RNScalar) R3circle_npoints;
R3circle_points[i] = R3Point(cos(R3circle_angles[i]), sin(R3circle_angles[i]), 0.0);
R3circle_texcoords[i] = R2Point(0.5 * (R3circle_points[i].X() + 1.0), 0.5 * (R3circle_points[i].Y() + 1.0));
}
/* Return success */
return TRUE;
}
R3Mesh* Terrain::Patch(R3Point center, R2Point size, R2Point dps) { // dps: dots per side
R3Mesh *patch = new R3Mesh();
for (unsigned int r = 0; r < dps.Y(); r++) {
for (unsigned int c = 0; c < dps.X(); c++) {
double dx = (double)c / dps.X() * size.X() - size.X() / 2;
double dy = (r + c) % 2 * Util::UnitRandom(); // default
if (params.heightMap) {
int x = ((double)c / dps.X()) * params.heightMap->Width();
int y = ((double)r / dps.Y()) * params.heightMap->Height();
dy = 25 * params.heightMap->Pixel(x,y).Luminance();
}
double dz = (double)r / dps.Y() * size.Y() - size.Y() / 2;
R3Point position(center.X() + dx, center.Y() + dy, center.Z() + dz);
double tx = position.X() / 80;
double ty = position.Z() / 80;
//R2Point texcoord = R2Point(tx - ((int) tx), ty - ((int) ty));
//if (texcoord.X() < 0)
//texcoord.SetX(1 + texcoord.X());
//if (texcoord.Y() < 0)
//texcoord.SetY(1 + texcoord.Y());
patch->CreateVertex(position, R3Vector(0,1,0), R2Point(tx, ty)); // id's go up along x axis, then along y
}
}
for (unsigned int r = 0; r < dps.Y() - 1; r++) {
for (unsigned int c = 0; c < dps.X() - 1; c++) {
unsigned int cols = (unsigned int)dps.X();
unsigned int k = c + r * cols;
vector<R3MeshVertex*> vertices;
vertices.push_back(patch->Vertex(k+cols));
vertices.push_back(patch->Vertex(k+1));
vertices.push_back(patch->Vertex(k));
patch->CreateFace(vertices);
vector<R3MeshVertex*> vertices2;
vertices2.push_back(patch->Vertex(k+cols));
vertices2.push_back(patch->Vertex(k+1+cols));
vertices2.push_back(patch->Vertex(k+1));
patch->CreateFace(vertices2);
}
}
patch->Update();
return patch;
}
void GWindow::drawLine(const I2Point& p1, const I2Point& p2) {
//... drawLine(invMap(p1), invMap(p2));
if (
abs(p1.x) < SHRT_MAX && abs(p1.y) < SHRT_MAX &&
abs(p2.x) < SHRT_MAX && abs(p2.y) < SHRT_MAX
)
{
::XDrawLine(
m_Display,
m_Window,
m_GC,
p1.x, p1.y,
p2.x, p2.y
);
} else {
R2Point c1, c2;
if (
R2Rectangle(
m_IWinRect.left(), m_IWinRect.top(),
m_IWinRect.width(), m_IWinRect.height()
).clip(
R2Point(p1.x, p1.y), R2Point(p1.x, p1.y),
c1, c2
)
) {
::XDrawLine(
m_Display,
m_Window,
m_GC,
(int)(c1.x + 0.5), (int)(c1.y + 0.5),
(int)(c2.x + 0.5), (int)(c2.y + 0.5)
);
}
}
moveTo(invMap(p2));
}
GWindow::GWindow():
m_Window(0),
m_GC(0),
m_WindowPosition(0, 0),
m_IWinRect(I2Point(0, 0), 300, 200), // Some arbitrary values
m_RWinRect(
R2Point(0., 0.),
300., 200.
),
m_ICurPos(0, 0),
m_RCurPos(0., 0.),
m_xcoeff(1.),
m_ycoeff(1.),
m_WindowCreated(false),
m_bgPixel(0),
m_fgPixel(0),
m_bgColorName(0),
m_fgColorName(0),
m_BorderWidth(DEFAULT_BORDER_WIDTH),
m_BeginExposeSeries(true)
{
strcpy(m_WindowTitle, "Graphic Window");
}
void Rails::Create(void)
{
for (int i = 0; i < params.railMap->Width(); i++) {
for (int j = 0; j < params.railMap->Height(); j++) {
if (params.railMap->Pixel(i,j).Luminance() > .7)
currentLocation = R2Point(i, j);
}
}
/*
for (int i = 0; i < params.railMap->Width()-1; i++) {
for (int j = 0; j < params.railMap->Height()-1; j++) {
if (params.railMap->Pixel(i,j)[0] > .5) {
if (params.railMap->Pixel(i,j+1)[0] > .5 && params.railMap->Pixel(i+1,j+1)[0] > .5) {
params.railMap->Pixel(i,j+1)[0] = 0;//, R2black_pixel);
}
if (params.railMap->Pixel(i+1,j)[0] > .5 && params.railMap->Pixel(i+1,j+1)[0] > .5) {
params.railMap->Pixel(i+1,j)[0] = 0;//, R2black_pixel);
}
}
}
}
*/
oldLocation = currentLocation;
oldoldLocation = currentLocation;
targetDirection = 3.14159;
currentDirection = 3.14159;
time = 1.0/MOVE_SPEED*TERRAIN_DPS/(double)TERRAIN_SIZE;
node = new R3Node();
node->transformation = R3identity_matrix;
globals.scene->root->AddChild(node);
}
R2Point
operator-(const R2Point& point, const R2Vector& vector)
{
return R2Point(point.X() - vector.X(),
point.Y() - vector.Y());
}
R2Point
operator+(const R2Point& point1, const R2Point& point2)
{
return R2Point(point1.v[0] + point2.v[0],
point1.v[1] + point2.v[1]);
}
R2Point
operator-(const R2Point& point)
{
return R2Point(-point.X(),
-point.Y());
}
void R3OrientedBox::
Draw(const R3DrawFlags draw_flags) const
{
// Check if box is empty
if (IsEmpty()) return;
static R2Point texcoords[4] = {
R2Point(0.0, 0.0),
R2Point(1.0, 0.0),
R2Point(1.0, 1.0),
R2Point(0.0, 1.0)
};
static int surface_paths[6][4] = {
{ 3, 0, 1, 2 },
{ 4, 7, 6, 5 },
{ 0, 4, 5, 1 },
{ 7, 3, 2, 6 },
{ 3, 7, 4, 0 },
{ 1, 5, 6, 2 }
};
static int outline_path[16] = {
0, 1, 2, 3,
0, 4, 5, 6,
7, 4, 5, 1,
2, 6, 7, 3
};
/* Get box corner points */
R3Point corners[8];
corners[0] = Corner(RN_NNN_OCTANT);
corners[1] = Corner(RN_NNP_OCTANT);
corners[2] = Corner(RN_NPP_OCTANT);
corners[3] = Corner(RN_NPN_OCTANT);
corners[4] = Corner(RN_PNN_OCTANT);
corners[5] = Corner(RN_PNP_OCTANT);
corners[6] = Corner(RN_PPP_OCTANT);
corners[7] = Corner(RN_PPN_OCTANT);
// Draw surface
if (draw_flags[R3_SURFACES_DRAW_FLAG]) {
for (int i = 0; i < 6; i++) {
R3BeginPolygon();
if (draw_flags[R3_SURFACE_NORMALS_DRAW_FLAG]) {
RNScalar sign = (i < 3) ? 1.0 : -1.0;
R3LoadNormal(sign * Axis(i%3));
}
for (int j = 0; j < 4; j++) {
if (draw_flags[R3_VERTEX_TEXTURE_COORDS_DRAW_FLAG])
R3LoadTextureCoords(texcoords[j]);
R3LoadPoint(corners[surface_paths[i][j]]);
}
R3EndPolygon();
}
}
// Draw edges
if (draw_flags[R3_EDGES_DRAW_FLAG]) {
R3BeginLine();
for (int i = 0; i < 16; i++)
R3LoadPoint(corners[outline_path[i]]);
R3EndLine();
}
}
void Rails::Update(double dt)
{
time -= dt;
if (time < 0) {
int i = -1;
int j = -1;
time += 1.0/MOVE_SPEED*(double)GetWidth()/TERRAIN_DPS;//*GetWidth()/(double)TERRAIN_SIZE;//TERRAIN_SIZE/(double)TERRAIN_DPS;//*coeff;//(double)GetWidth()*coeff;
float greatest = 0;
R2Point previousLocation = oldLocation;
R2Point firstLocation = currentLocation;
R2Point secondLocation = currentLocation;
for (int k = 0; k < 5; k++) {
float greatest = 0;
for (i = -1; i <= 1; i++) {
for (j = -1; j <= 1; j++) {
if (i == 0 && j == 0)
continue;
if (params.railMap->Pixel(currentLocation.X()+i,currentLocation.Y()+j)[0] > greatest) {
R2Point tempLocation = R2Point(currentLocation.X()+i,currentLocation.Y()+j);
if (tempLocation.X() != oldLocation.X() || tempLocation.Y() != oldLocation.Y()) {
if (tempLocation.X() != oldoldLocation.X() || tempLocation.Y() != oldoldLocation.Y()) {
greatest = params.railMap->Pixel(currentLocation.X()+i,currentLocation.Y()+j)[0];
nextLocation = tempLocation;
}
}
}
}
}
if (k==0)
secondLocation = nextLocation;
oldoldLocation = oldLocation;
oldLocation = currentLocation;
currentLocation = nextLocation;
}
for (i = -1; i <= 1; i++) {
for (j = -1; j <= 1; j++) {
if (i == 0 && j == 0)
continue;
if (params.railMap->Pixel(currentLocation.X()+i,currentLocation.Y()+j)[2] > .5) {
globals.levelStatus = 1;
globals.gsmgr->Stop();
}
}
}
R3Vector v = R3Vector(-(currentLocation.X()-firstLocation.X()), 0, currentLocation.Y()-firstLocation.Y());
targetDirection = acos(-R3zaxis_vector.Dot(v)/v.Length());
targetDirection = targetDirection - (int)(targetDirection/6.28);
if (v.X() < 0) {
targetDirection = 6.28-targetDirection;
}
oldoldLocation = previousLocation;
oldLocation = firstLocation;
currentLocation = secondLocation;
}
//double coeff = (sqrt(2) - 1)*abs((firstLocation.X()-currentLocation.X())*(currentLocation.Y()-firstLocation.Y())) + 1;
//printf("coeff %f\n", coeff);
float closeness = 0;
if (targetDirection < 0)
closeness = (-currentDirection + targetDirection);
else
closeness = (-currentDirection + targetDirection);
currentDirection += ROLL_SPEED*dt * closeness;//abs(closeness)*closeness;
if (abs(currentDirection - targetDirection) > .05) {
/*
if (currentDirection < targetDirection)
currentDirection += ROLL_SPEED*dt;
if (currentDirection > targetDirection)
currentDirection -= ROLL_SPEED*dt;
*/
}
//currentDirection = targetDirection;//abs(closeness)*closeness;
globals.player->SetDirection(currentDirection);
}
void GWindow::drawLine(double x1, double y1, double x2, double y2) {
drawLine(R2Point(x1, y1), R2Point(x2, y2));
}
void GWindow::drawLineTo(double x, double y) {
drawLineTo(R2Point(x, y));
}
R2Point
operator*(const R2Point& point, double a)
{
return R2Point(point.X() * a,
point.Y() * a);
}
void GWindow::moveTo(double x, double y) {
moveTo(R2Point(x, y));
}
void GWindow::drawString(double x, double y, const char* str, int len) {
drawString(map(R2Point(x, y)), str, len);
}
void GLUTRedraw(void)
{
// Check scene
if (!scene) return;
// Set viewing transformation
viewer->Camera().Load();
// Clear window
RNRgb background = scene->Background();
glClearColor(background.R(), background.G(), background.B(), 1.0);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
// Load lights
LoadLights(scene);
// Draw camera
if (show_camera) {
glDisable(GL_LIGHTING);
glColor3d(1.0, 1.0, 1.0);
glLineWidth(5);
DrawCamera(scene);
glLineWidth(1);
}
// Draw lights
if (show_lights) {
glDisable(GL_LIGHTING);
glColor3d(1.0, 1.0, 1.0);
glLineWidth(5);
DrawLights(scene);
glLineWidth(1);
}
// Draw rays
if (show_rays) {
glDisable(GL_LIGHTING);
glColor3d(0.0, 1.0, 0.0);
glLineWidth(3);
DrawRays(scene);
glLineWidth(1);
}
// Draw rays
if (show_photons) {
glDisable(GL_LIGHTING);
glColor3d(1.0, 1.0, 1.0);
glLineWidth(1);
DrawPhotonPaths(scene);
glLineWidth(1);
}
// Draw rays
if (show_global_samples) {
glDisable(GL_LIGHTING);
glColor3d(1.0, 1.0, 1.0);
glLineWidth(1);
DrawGlobalSamples(scene);
glLineWidth(1);
}
// Draw rays
if (show_caustic_samples) {
glDisable(GL_LIGHTING);
glColor3d(1.0, 1.0, 1.0);
glLineWidth(1);
DrawCausticSamples(scene);
glLineWidth(1);
}
// Draw scene nodes
if (show_shapes) {
glEnable(GL_LIGHTING);
R3null_material.Draw();
DrawShapes(scene, scene->Root());
R3null_material.Draw();
}
// Draw bboxes
if (show_bboxes) {
glDisable(GL_LIGHTING);
glColor3d(1.0, 0.0, 0.0);
DrawBBoxes(scene, scene->Root());
}
// Draw frame time
if (show_frame_rate) {
char buffer[128];
static RNTime last_time;
double frame_time = last_time.Elapsed();
last_time.Read();
if ((frame_time > 0) && (frame_time < 10)) {
glDisable(GL_LIGHTING);
glColor3d(1.0, 1.0, 1.0);
sprintf(buffer, "%.1f fps", 1.0 / frame_time);
DrawText(R2Point(100, 100), buffer);
}
}
// Capture screenshot image
if (screenshot_image_name) {
if (print_verbose) printf("Creating image %s\n", screenshot_image_name);
R2Image image(GLUTwindow_width, GLUTwindow_height, 3);
image.Capture();
image.Write(screenshot_image_name);
screenshot_image_name = NULL;
}
// Swap buffers
glutSwapBuffers();
}
void GWindow::drawAxes(
const char* axesColor /* = 0 */,
bool drawGrid /* = false */,
const char* gridColor /* = 0 */
) {
// Af first, draw a grid
if (drawGrid) {
if (gridColor != 0)
setForeground(gridColor);
// Vertical grid
int xmin = (int) ceil(m_RWinRect.left());
int xmax = (int) floor(m_RWinRect.right());
int i;
for (i = xmin; i <= xmax; i++) {
if (i == 0)
continue;
drawLine(
R2Point((double) i, m_RWinRect.bottom()),
R2Point((double) i, m_RWinRect.top())
);
}
int ymin = (int) ceil(m_RWinRect.bottom());
int ymax = (int) floor(m_RWinRect.top());
for (i = ymin; i <= ymax; i++) {
if (i == 0)
continue;
drawLine(
R2Point(m_RWinRect.left(), (double) i),
R2Point(m_RWinRect.right(), (double) i)
);
}
}
if (axesColor != 0)
setForeground(axesColor);
drawLine(R2Point(getXMin(), 0.), R2Point(getXMax(), 0.));
drawLine(R2Point(0., getYMin()), R2Point(0., getYMax()));
// Scale
drawLine(R2Point(1., -0.1), R2Point(1., 0.1));
drawLine(R2Point(-0.1, 1.), R2Point(0.1, 1.));
double w = m_RWinRect.width();
double h = m_RWinRect.height();
drawString(R2Point(getXMin() + w * 0.9, -h*0.06), "x", 1);
drawString(R2Point(w * 0.03, getYMin() + h*0.9), "y", 1);
}