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Chaymaa EL MALI
labyrinth
Commits
6a110c7b
Unverified
Commit
6a110c7b
authored
Jun 17, 2021
by
yassir-ai
Committed by
GitHub
Jun 17, 2021
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Update rendu2.c.code-workspace
dessiner sur un rendu
parent
a14ea072
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rendu2.c.code-workspace
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#include <SDL2/SDL.h>
#include <math.h>
#include <stdio.h>
#include <string.h>
/*********************************************************************************************************************/
/* Programme d'exemple de création de rendu + dessin */
/*********************************************************************************************************************/
void end_sdl(char ok, // fin normale : ok = 0 ; anormale ok = 1
char const* msg, // message à afficher
SDL_Window* window, // fenêtre à fermer
SDL_Renderer* renderer) { // renderer à fermer
char msg_formated[255];
int l;
if (!ok) {
strncpy(msg_formated, msg, 250);
l = strlen(msg_formated);
strcpy(msg_formated + l, " : %s\n");
SDL_Log(msg_formated, SDL_GetError());
}
if (renderer != NULL) SDL_DestroyRenderer(renderer);
if (window != NULL) SDL_DestroyWindow(window);
SDL_Quit();
if (!ok) {
exit(EXIT_FAILURE);
}
}
void draw(SDL_Renderer* renderer) { // Je pense que vous allez faire moins laid :)
SDL_Rect rectangle;
SDL_SetRenderDrawColor(renderer,
150, 100, 0, // mode Red, Green, Blue (tous dans 0..255)
100); // 0 = transparent ; 255 = opaque
/* rectangle.x = 0; // x haut gauche du rectangle
rectangle.y = 0; // y haut gauche du rectangle
rectangle.w = 400; // sa largeur (w = width)
rectangle.h = 400; // sa hauteur (h = height)
/*SDL_RenderFillRect(renderer, &rectangle);*/
/*SDL_SetRenderDrawColor(renderer, 100, 200, 0, 100);*/
/*SDL_RenderDrawLine(renderer,
0, 0, // x,y du point de la première extrémité
400, 400); // x,y seconde extrémité*/
/* tracer un cercle n'est en fait pas trivial, voilà le résultat sans algo intelligent ... */
for (float angle = 0; angle < 2 * M_PI; angle += M_PI / 4000) {
SDL_SetRenderDrawColor(renderer,
(cos(angle * 2) + 1) * 255 / 2, // quantité de Rouge
(cos(angle * 5) + 1) * 255 / 2, // de vert
(cos(angle) + 1) * 255 / 2, // de bleu
255); // opaque
SDL_RenderDrawPoint(renderer,
500 + 100 * cos(angle), // coordonnée en x
200 + 100 * sin(angle)); // en y
}
for (float angle = 0; angle < 2 * M_PI; angle += M_PI / 4000) {
SDL_SetRenderDrawColor(renderer,
(cos(angle * 2) + 1) * 255 / 2, // quantité de Rouge
(cos(angle * 5) + 1) * 255 / 2, // de vert
(cos(angle) + 1) * 255 / 2, // de bleu
255); // opaque
SDL_RenderDrawPoint(renderer,
500 + 200 * cos(angle), // coordonnée en x
200 + 200 * sin(angle)); // en y
}
for(float i = 0 ; i< 1000 ; i++)
{
"folders": []
/*SDL_SetRenderDrawColor(renderer,
50, 60, 0, // mode Red, Green, Blue (tous dans 0..255)
55);
// 0 = transparent ; 255 = opaque*/
for(float angle=0 ;angle < 20 * M_PI; angle += M_PI / 4)
{
SDL_SetRenderDrawColor(renderer,
200, 200, 0, // mode Red, Green, Blue (tous dans 0..255)
55);
rectangle.x = 500 + 150 * cos(angle) ; // coordonnée en x // x haut gauche du rectangle
rectangle.y = 200 + 150 * sin(angle) ; // y haut gauche du rectangle
rectangle.w = 40; // sa largeur (w = width)
rectangle.h = 10; // sa hauteur (h = height)
SDL_RenderFillRect(renderer, &rectangle);
SDL_RenderPresent(renderer);
SDL_Delay(50);
SDL_SetRenderDrawColor(renderer,
0, 0, 0, // mode Red, Green, Blue (tous dans 0..255)
0);
SDL_RenderFillRect(renderer, &rectangle);
SDL_RenderPresent(renderer);
}
}
}
int main(int argc, char** argv) {
(void)argc;
(void)argv;
SDL_Window* window = NULL;
SDL_Renderer* renderer = NULL;
SDL_DisplayMode screen;
/*********************************************************************************************************************/
/* Initialisation de la SDL + gestion de l'échec possible */
if (SDL_Init(SDL_INIT_VIDEO) != 0) end_sdl(0, "ERROR SDL INIT", window, renderer);
SDL_GetCurrentDisplayMode(0, &screen);
printf("Résolution écran\n\tw : %d\n\th : %d\n", screen.w,
screen.h);
/* Création de la fenêtre */
window = SDL_CreateWindow("Premier dessin",
SDL_WINDOWPOS_CENTERED,
SDL_WINDOWPOS_CENTERED, screen.w * 0.66,
screen.h * 0.66,
SDL_WINDOW_OPENGL);
if (window == NULL) end_sdl(0, "ERROR WINDOW CREATION", window, renderer);
/* Création du renderer */
renderer = SDL_CreateRenderer(
window, -1, SDL_RENDERER_ACCELERATED | SDL_RENDERER_PRESENTVSYNC);
if (renderer == NULL) end_sdl(0, "ERROR RENDERER CREATION", window, renderer);
/*********************************************************************************************************************/
/* On dessine dans le renderer */
draw(renderer); // appel de la fonction qui crée l'image
SDL_RenderPresent(renderer); // affichage
SDL_Delay(7000); // Pause exprimée en ms
/*********************************************************************************************************************/
/* on referme proprement la SDL */
end_sdl(1, "Normal ending", window, renderer);
return EXIT_SUCCESS;
}
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