int LOBJECT_METHOD(drawLines, SDL_Renderer * renderer){
if (state.is_table(1)){
int count = state.obj_len(1);
if (count>0){
SDL_Point* points = new SDL_Point[count];
int final_count = 0;
for (int i=0; i< count; i++){
state.push_integer(i+1);
state.get_table(1); // 1 T
if (state.is_table(-1)){
state.get_field(-1, "x"); // 1 T x
state.get_field(-2, "y"); // 1 T x y
points[final_count].x = state.to_integer(-2);
points[final_count].y = state.to_integer(-1);
final_count++;
state.pop(3);
}else{
state.pop(1);
}
}
state.push_boolean(SDL_RenderDrawLines(renderer, points, final_count) == 0);
delete[] points;
return 1;
}
}
return 0;
}
void draw_attitude_indic()
{
/*
* simple attitude indicator with the horizon represented by a straight line
* and the drone by a line with a center point.
*/
int i=0;
//nose inclination = y offset from the horizon
int nose_incl = (int)(horiz_pitchScale * pitch);
//"center" of the drone, unaffected by roll
SDL_Point center = {horiz_posx + horiz_size/2, horiz_posy-nose_incl};
//series of points representing the drone on the indicator, affected by pitch
SDL_Point drone_points[] = {
{horiz_posx, center.y},
{center.x-5, center.y},
{center.x, center.y-5},
{center.x+5, center.y},
{horiz_posx+horiz_size, center.y}
};
int nb_points = sizeof(drone_points)/sizeof(SDL_Point);
//apply roll to the points
for(i=0; i<nb_points; i++)
rotate_point(&drone_points[i], ¢er, roll);
//1. draw the horizon
SDL_RenderDrawLine(renderer, horiz_posx, horiz_posy, horiz_posx+horiz_size, horiz_posy);
//2. draw the drone's "flight line"
SDL_RenderDrawLines(renderer, drone_points, nb_points);
}
void draw_shape(cpBody* body, cpShape* shape, void* data)
{
// get body info
cpVect v = cpBodyGetPos(body);
cpFloat angle = cpBodyGetAngle(body);
cpVect rot = cpvforangle(angle);
// get vectors
int n = cpPolyShapeGetNumVerts(shape);
SDL_Point* pts = calloc(sizeof(SDL_Point), n+1);
// rotate vectors
int i;
for(i=0; i<n; i++) {
cpVect p = cpPolyShapeGetVert(shape, i);
cpVect vr = cpvrotate(cpv(p.x,p.y), rot);
pts[i] = (SDL_Point) { (vr.x+v.x)*10+50, (vr.y+v.y)*10+50 };
if(i == 0)
pts[n] = pts[i];
}
// draw
SDL_RenderDrawLines(ren, pts, n+1);
free(pts);
}
//Draws lines between the array of points
//param:pointsArray->The array of points to draw lines between
//param:numberOfPoints->The length of the array
//param:connectEndToStart->True to have the last point connect to the first point
int SpriteBatch::DrawLines(SDL_Point* pointsArray, int numberOfPoints,SDL_Color color, bool connectEndToStart)
{
//Check if spritebatch.begin has been called
if(!begun)
{
std::cout<<"Begin must be called before attempting to draw"<<std::endl;
return -1;
}
int result = 0;
//Check for proper size
if(numberOfPoints < 2)
{
std::cout<<"DrawLines Error: Number Of Points must be greater than 2"<<std::endl;
return -1;
}
//Set line color
result = SDL_SetRenderDrawColor(renderer, color.r, color.g, color.b, color.a);
//check for color setting problems
if(result != 0)
{
std::cout<<"DrawLines error: Problem setting lines' color"<<std::endl;
return result;
}
//Draw all the lines
result = SDL_RenderDrawLines(renderer, pointsArray, numberOfPoints);
//Check for draw errors
if(result != 0)
{
std::cout<<"DrawLines error" <<std::endl;
return result;
}
//If true to connect end to start
if(connectEndToStart)
{
//Draw a line from first point to last point
result = SDL_RenderDrawLine(renderer, pointsArray[0].x, pointsArray[0].y,
pointsArray[numberOfPoints - 1].x, pointsArray[numberOfPoints-1].y);
//Check for draw errors
if(result != 0)
{
std::cout<<"DrawLines error: Can't connect last element to beginning element"<<std::endl;
return result;
}
}
//return success
return result;
}
void DrawWheel3(const std_msgs::UInt16MultiArray& WheelStatus3){
float angle = Enc[0][3].extractAngle()/2.0;
static int position[2] = {182, 252};
SDL_Point draw[9];
pointsRotTrans(9, wheel, angle, 1, position, draw);
//printf("Angle Watch: %f\n", (angle)/M_PI*180.0);
SDL_RenderDrawLines(renderer, draw, 9);
SDL_RenderPresent(renderer);
refresh[3] = true;
}
void SDL2DRenderManager::DrawCircle( const Circle& circle )
{
int sampling = static_cast< int >( circle.radius_ );
int center = static_cast< int >( circle.center_.x_ );
SDL_Point* pointsUp = new SDL_Point[ 2 * sampling + 1 ];
SDL_Point* pointsDown = new SDL_Point[ 2 * sampling + 1 ];
for( int i = 0; i < 2 * sampling + 1; ++i )
{
int posx = i - sampling + center;
pointsUp[ i ].x = posx;
pointsDown[ i ].x = posx;
pointsUp[ i ].y = static_cast< int >( circle.center_.y_ + sqrt( pow( circle.radius_, 2.0 ) - pow( posx - center, 2.0 ) ) );
pointsDown[ i ].y = static_cast< int >( circle.center_.y_ - sqrt( pow( circle.radius_, 2.0 ) - pow( posx - center, 2.0 ) ) );
}
SDL_RenderDrawLines( renderer_, pointsUp, 2 * sampling + 1 );
SDL_RenderDrawLines( renderer_, pointsDown, 2 * sampling + 1 );
delete pointsUp;
delete pointsDown;
}
JSBool drawLines(JSContext *cx,uintN argc , jsval* vp){
JSObject *jthis = NULL;
pList *list = NULL;
jthis = JS_THIS_OBJECT(cx, vp);
if(jthis){
list = (pList*)JS_GetInstancePrivate(cx, jthis, &lineList, NULL);
if(list){
SDL_RenderDrawLines(renderer,list->points,list->length);
JS_SET_RVAL(cx,vp,JSVAL_TRUE);
return JS_TRUE;
}
}
JS_SET_RVAL(cx,vp,JSVAL_TRUE);
return JS_TRUE;
}
void Game::render()
{
SDL_SetRenderDrawColor(ren, 0, 0, 0, 0);
SDL_RenderClear(ren);
SDL_SetRenderDrawColor(ren, 255, 0, 0, 255);
SDL_SetRenderDrawColor(ren, rand()%255, rand()%255, rand()%255, rand()%255);
if(asteroides.size() > 0)
for (int i = 0; i < asteroides.size(); i++)
SDL_RenderDrawLines(ren, asteroides[i].getPoints(), asteroides[i].getNumeroVertices() + 1);
SDL_RenderPresent(ren);
return;
}
CAMLprim value
caml_SDL_RenderDrawLines(value renderer, value ml_points)
{
unsigned int i;
unsigned int count = Wosize_val(ml_points);
SDL_Point * points = malloc(count * sizeof(SDL_Point));
for (i = 0; i < count; i++) {
value p = Field(ml_points, i);
points[i].x = Int_val(Field(p, 0));
points[i].y = Int_val(Field(p, 1));
}
int r = SDL_RenderDrawLines(
SDL_Renderer_val(renderer),
points, count);
free(points);
if (r) caml_failwith("Sdlrender.draw_lines");
return Val_unit;
}
void GameProyecto:: render()
{
SDL_Point p1,p2;
SDL_SetRenderDrawColor(m_pRenderer, 0, 0, 0, 255);
SDL_RenderClear(m_pRenderer);
SDL_SetRenderDrawColor(m_pRenderer, 255, 0, 0, 255);
for(int i=0; i < asteroides.size(); i++) {
Coordenada centro = asteroides[i].obtenCentro();
SDL_SetRenderDrawColor(m_pRenderer, rand()%255, rand()%255, rand()%255, 255);
vector<Coordenada> vertices = asteroides[i].obtenVertices();
p1.x = vertices.back().obtenerX();
p1.y = vertices.back().obtenerY();
for(int j = 0; j<vertices.size(); j++)
{
p2.x = vertices[j].obtenerX();
p2.y = vertices[j].obtenerY();
SDL_Point points[4] = { p1, p2};
SDL_RenderDrawLines(m_pRenderer, points, 2);
p1 = p2;
}
}
SDL_RenderPresent(m_pRenderer);
}
void Window::drawLines( const std::vector<lx::Graphics::ImgCoord>& vpoints ) noexcept
{
SDL_RenderDrawLines( m_wimpl->renderer,
reinterpret_cast<const SDL_Point *>( &vpoints[0] ),
static_cast<int>( vpoints.size() ) );
}
int main(int argc, char *argv[]) {
if (argc == 1) {
puts("Use: level_edit <level_folder>");
return 1;
}
qw_screen(800, 600, 0, "Projekt Defense");
/* get background image from level folder */
char lvl_bg[128] = {0};
strcpy(lvl_bg, argv[1]);
strcat(lvl_bg, "/background.png");
qw_image background = qw_loadimage(lvl_bg);
int max_points = 128,
points_i = 0;
SDL_Point *points = malloc(sizeof(SDL_Point) * max_points);
while (qw_running()) {
qw_drawimage(background);
qw_color(200, 100, 120, 255);
qw_fillrect(qw_mousex - 2, qw_mousey - 2, 4, 4);
/* waypoint placement */
if (qw_mousedown(SDL_BUTTON_LEFT)) {
if (points_i == 0) {
points[points_i++] = point_new(qw_mousex, qw_mousey);
} else {
/* if not the first point placed: check if current point is to close to the last one */
SDL_Point np = point_new(qw_mousex, qw_mousey);
if (point_distance(points[points_i - 1], np) > 7.f)
points[points_i++] = np;
}
/* we need more points? */
if (points_i == max_points) {
max_points += 128;
points = realloc(points, sizeof(SDL_Point) * max_points);
}
}
if (qw_keydown(QW_KEY(E))) {
if (points_i > 1) {
export_points(argv[1], points, points_i);
puts("Exported!");
qw_quit();
}
}
qw_color(100, 120, 200, 255);
SDL_RenderDrawLines(qw_renderer, points, points_i);
qw_redraw();
if (qw_keydown(QW_KEY(ESCAPE))) {
qw_quit();
}
}
free(points);
qw_destroyimage(background);
return 0;
}
void GA::Execute(){
std::cout << "Solving TSP\n";
SDL_Window *window = NULL;
//SDL_Surface *surface;
SDL_Init(SDL_INIT_VIDEO);
const int wWidth = 640;
const int wHeight = 480;
window = SDL_CreateWindow("TSP Visualizer",SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, wWidth,wHeight,SDL_WINDOW_OPENGL);
//surface = SDL_GetWindowSurface(window);
SDL_UpdateWindowSurface(window);
SDL_Renderer *renderer = SDL_CreateRenderer(window, -1, SDL_RENDERER_ACCELERATED);
std::vector<SDL_Rect> cityDots;
for(const auto& c : baseCityVector){
SDL_Rect dot;
dot.x = c.getX() * wWidth / maxXPosition - 2;
dot.y = c.getY() * wHeight / maxYPosition - 2;
dot.w = 4;
dot.h = 4;
cityDots.push_back(dot);
}
for(int g = 1; g < targetGenerationNumber; g++){
currentGeneration = g;
std::cout << "Current generation: " << g << "\n";
SortCandidates();
//std::cout << "Sorted population\n";
parentsPopulation.clear();
SelectParents(populationBreadersPercentage);
int childrenPopulationSize = populationSize * populationBreadersPercentage / 100;
//std::cout << "Childrem population size: " << childrenPopulationSize << "\n";
while(newPopulation.size() < childrenPopulationSize){
//std::cout << "New pop size: " << newPopulation.size() << "\n";
auto parent1 = parentsPopulation.at( std::rand() % parentsPopulation.size() );
auto parent2 = parentsPopulation.at( std::rand() % parentsPopulation.size() );
//std::future<Candidate> fChild1 = std::async(GA::PMXCrossover,parent1,parent2);
Candidate child1 = PMXCrossover(parent1,parent2);
Candidate child2 = PMXCrossover(parent2,parent1);
//if(std::find(newPopulation.begin(),newPopulation.end(),child) == newPopulation.end())
newPopulation.push_back ( child1 );
newPopulation.push_back ( child2 );
}
//std::cout << "Created new population\n";
for(int m = 1; m <= newPopulation.size() * mutationPercentage / 100; m++){
//auto mutant = newPopulation[std::rand() % newPopulation.size()];
auto mutant = newPopulation[ (std::rand() * m) % newPopulation.size()];
Mutate(mutant, mutationPower);
mutant.ReEvaluate(distances);
}
//std::cout << "Mutated population\n";
population.insert(population.end(), newPopulation.begin(), newPopulation.end());
newPopulation.clear();
NormalizeCandidates();
SortCandidates();
population = std::vector<Candidate>(population.begin(),population.begin()+populationSize);
std::cout << "Best: " << population.at(0) << "\n";
SDL_SetRenderDrawColor(renderer, 255,255,255,255);
SDL_RenderClear(renderer);
std::vector<SDL_Point> cityPositions;
/*
int maxX;
int maxY;
for(const auto& city : getBest().getCandidate()){
maxX = 0;
maxY = 0;
if(city.getX() > maxX)
maxX = city.getX();
if(city.getY() > maxY)
maxY = city.getY();
}
*/
for(const auto& city : population[0].getCandidate()){
int posY = city.getY() * wHeight / maxYPosition;
int posX = city.getX() * wWidth / maxXPosition;
SDL_Point position;
position.y = city.getY() * wHeight / maxYPosition;
position.x = city.getX() * wWidth / maxXPosition;
cityPositions.push_back(position);
}
SDL_SetRenderDrawColor(renderer, 255,0,0,255);
SDL_RenderDrawLines(renderer, &cityPositions[0], cityPositions.size());
SDL_SetRenderDrawColor(renderer, 0,255,0,255);
SDL_RenderFillRects(renderer, &cityDots[0], cityDots.size());
SDL_RenderPresent(renderer);
/*
if(renderer == NULL){
SDL_RenderDrawLine(renderer, g*10, g, 250, 250);
}
*/
}
SDL_DestroyWindow(window);
SDL_Quit();
}
void Rock::draw(SDL_Renderer* r)
{
SDL_SetRenderDrawColor(r, 255, 255, 0, 1.0);
SDL_RenderDrawLines(r, lines, 10);
SDL_SetRenderDrawColor(r, 0, 0, 0, 255);
}
int main(void)
{
SDL_Window *win;
SDL_Renderer *ren;
int vxmax,vymax;
int n,i,j,cx,cy;
int x[DIM],y[DIM];
SDL_Point p[DIM];
float rx,ry,step,alfa;
if(SDL_Init(SDL_INIT_VIDEO)<0)
{
fprintf(stderr,"Couldn't init video: %s\n",SDL_GetError());
return(1);
}
vxmax=400;
vymax=400;
win= SDL_CreateWindow("Polygon", 100, 100, vxmax, vymax, SDL_WINDOW_SHOWN);
if(win==NULL){
fprintf(stderr,"SDL_CreateWindow Error: %s\n",SDL_GetError());
SDL_Quit();
return 1;
}
ren = SDL_CreateRenderer(win, -1, SDL_RENDERER_ACCELERATED | SDL_RENDERER_PRESENTVSYNC);
if (ren == NULL){
SDL_DestroyWindow(win);
fprintf(stderr,"SDL_CreateRenderer Error: %s\n",SDL_GetError());
SDL_Quit();
return 1;
}
SDL_SetRenderDrawColor(ren, 50, 50, 50, 255);
SDL_RenderClear(ren);
SDL_RenderPresent(ren);
printf("\nDisegno di un poligono regolare: \n");
printf("Dai il numero di vertici: \n");
scanf("%d",&n);
cx=(int)vxmax/2;
cy=(int)vymax/2;
rx=(float)vxmax/2-2;
ry=(float)vymax/2-2;
step=6.28/n;
for (j=0; j<n; j++)
{
alfa=j*step;
x[j]=(int)rx*cos(alfa)+cx;
y[j]=(int)ry*sin(alfa)+cy;
p[j].x=x[j];
p[j].y=y[j];
}
p[n].x=x[0];
p[n].y=y[0];
#ifdef DEBUG
/* disegna la crf. circoscritta al poligono */
GC_FillCircle(ren, cx, cy, rx);
GC_DrawCircle(ren, cx, cy, rx);
#endif
/* disegna un poligono di colore bianco */
SDL_SetRenderDrawColor(ren,255,255,255,255);
SDL_RenderDrawLine(ren, x[n-1], y[n-1], x[0], y[0]);
for (i=0; i<n-1; i++)
SDL_RenderDrawLine(ren, x[i], y[i], x[i+1], y[i+1]);
SDL_SetRenderDrawColor(ren,255,0,0,255);
SDL_RenderDrawLines(ren, p, n+1);
SDL_RenderPresent(ren);
#ifdef DEBUG
/* disegno artistico: definire DEBUG nel Makefile */
SDL_SetRenderDrawColor(ren,255,0,0,255);
for (i=0; i<n; i++)
for (j=i+1; j<n; j++)
SDL_RenderDrawLine(ren, x[i], y[i], x[j], y[j]);
SDL_RenderPresent(ren);
#endif
press();
SDL_DestroyRenderer(ren);
SDL_DestroyWindow(win);
SDL_Quit();
return(0);
}
int main(int argc, const char* const argv[])
{
srand(time(NULL));
if (SDL_Init(SDL_INIT_VIDEO) != 0)
{
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Unable to initialize SDL: %s\n", SDL_GetError());
exit(EXIT_FAILURE);
}
atexit(SDL_Quit);
if (IMG_Init(IMG_INIT_PNG) != IMG_INIT_PNG)
{
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Unable to initialize SDL2 image: %s\n", IMG_GetError());
exit(EXIT_FAILURE);
}
atexit(IMG_Quit);
SDL_Window* window = NULL;
SDL_Renderer* renderer = NULL;
if (SDL_CreateWindowAndRenderer(640, 480, SDL_WINDOW_SHOWN, &window, &renderer) < 0)
{
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't create window and renderer: %s\n", SDL_GetError());
exit(EXIT_FAILURE);
}
SDL_Surface* icon = IMG_Load("resources/iconzilla.png");
if (!icon)
{
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Failed to load icon file: %s\n", IMG_GetError());
SDL_DestroyRenderer(renderer);
SDL_DestroyWindow(window);
exit(EXIT_FAILURE);
}
SDL_SetWindowIcon(window, icon);
SDL_FreeSurface(icon);
SDL_SetWindowTitle(window, "SDL2 test app");
int done = 0;
SDL_Point lines[3][2] = {
{
{rand() % 640, rand() % 480},
{rand() % 640, rand() % 480}
},
{
{rand() % 640, rand() % 480},
{rand() % 640, rand() % 480}
},
{
{rand() % 640, rand() % 480},
{rand() % 640, rand() % 480}
}
};
SDL_Color colors[3] = {
{255, 0, 0, SDL_ALPHA_OPAQUE},
{0, 255, 0, SDL_ALPHA_OPAQUE},
{0, 0, 255, SDL_ALPHA_OPAQUE}
};
while (!done)
{
SDL_Event event;
while (SDL_PollEvent(&event))
{
if (event.type == SDL_WINDOWEVENT)
{
switch (event.window.event)
{
case SDL_WINDOWEVENT_CLOSE:
done = 1;
break;
}
}
}
if (SDL_SetRenderDrawColor(renderer, 0, 0, 0, SDL_ALPHA_OPAQUE) < 0)
{
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Failed to set draw color: %s\n", SDL_GetError());
}
if (SDL_RenderClear(renderer) < 0)
{
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Failed to clear renderer: %s\n", SDL_GetError());
}
for(int i = 0; i < 3; i++)
{
if (SDL_SetRenderDrawColor(renderer, colors[i].r, colors[i].g, colors[i].b, colors[i].a) < 0)
{
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Failed to set draw color: %s\n", SDL_GetError());
}
if (SDL_RenderDrawLines(renderer, lines[i], 2) < 0)
{
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Failed to draw line: %s\n", SDL_GetError());
}
}
SDL_RenderPresent(renderer);
}
SDL_DestroyRenderer(renderer);
SDL_DestroyWindow(window);
return 0;
}