Color setup + Doc update

README.md

@@ -47,16 +47,45 @@ $ ./sdl-glisseur_10
 $ top  (or ps ax)  ---> get PID of the glider proccess
 $ kill -9 PID
 ```
-or try to CTRL+C many times
+or try many times to close window
 
 - - - - - - -
 # Adjust image size
-Update WIDTH and HEIGHT on lines 36 and 37
+
+Update WIDTH and HEIGHT on
 ```
+// Canvas height and width //
 #define WIDTH 640
 #define HEIGHT 480
 ```
 
+- - - - - - -
+# Set up the 4 colors
+
+```
+// Canvas height and width //
+#define WIDTH 640
+#define HEIGHT 480
+```
+
+- - - - - - -
+# Set up the 4 colors
+```
+// 4 colors definition //
+#define COLOR_0_R 254
+#define COLOR_0_G 254
+#define COLOR_0_B 254
+#define COLOR_1_R 254
+#define COLOR_1_G 0
+#define COLOR_1_B 0
+#define COLOR_2_R 0
+#define COLOR_2_G 254
+#define COLOR_2_B 0
+#define COLOR_3_R 0
+#define COLOR_3_G 0
+#define COLOR_3_B 254
+```
+
 - - - - - - - 
 # Change glider moving rules
 Update the direction adding parameters, check examples from line 158 to line 205

glisseur_10.c

@@ -33,9 +33,39 @@
 /// /// /// /// /// /// /// /// /// /// /// /// /// /// /// /// /// /// ///
 
 
+// Canvas height and width //
 #define WIDTH 640
 #define HEIGHT 480
 
+// 4 colors definition //
+#define COLOR_0_R 254
+#define COLOR_0_G 254
+#define COLOR_0_B 254
+#define COLOR_1_R 254
+#define COLOR_1_G 0
+#define COLOR_1_B 0
+#define COLOR_2_R 0
+#define COLOR_2_G 254
+#define COLOR_2_B 0
+#define COLOR_3_R 0
+#define COLOR_3_G 0
+#define COLOR_3_B 254
+/*
+#define COLOR_0_R 254
+#define COLOR_0_G 254
+#define COLOR_0_B 254
+#define COLOR_1_R 0
+#define COLOR_1_G 0
+#define COLOR_1_B 0
+#define COLOR_2_R 240
+#define COLOR_2_G 240
+#define COLOR_2_B 0
+#define COLOR_3_R 254
+#define COLOR_3_G 0
+#define COLOR_3_B 0
+*/
+// END - 4 colors definition //
+
 
 Uint32 getpixel(SDL_Surface *surface,int x,int y)
 {
@@ -121,14 +151,18 @@ int main(int argc, char * argv[])
     //SDL_FillRect(screen, NULL, SDL_MapRGB(screen->format, 0xff, 0xff, 0xff));
     SDL_FillRect(screen, NULL, SDL_MapRGB(screen->format, 254, 254, 254));
 
+    
     //i=320;
     //j=240;
     i = floor(WIDTH / 2);
     j = floor(HEIGHT / 2);
+    
     direction=1;
     //for (j = 0; j < screen->h; j++) {
       //for (i = 0; i < screen->w; i++) {
-      
+
+
+    
 //      for (n = 0; n < 2000; n++) {
 while (0!=1) {
   
@@ -145,13 +179,17 @@ while (0!=1) {
 	printf("g=%i - ",g);
 	printf("b=%i - ",b);
 */
-	if ((r==254) && (g==254) && (b==254))
+	//if ((r==254) && (g==254) && (b==254))
+	if ((r==COLOR_0_R) && (g==COLOR_0_G) && (b==COLOR_0_B))
 	  couleur=0;
-	else if (r==254 && g==0 && b==0)
+	//else if (r==254 && g==0 && b==0)
+	else if (r==COLOR_1_R && g==COLOR_1_G && b==COLOR_1_B)
 	  couleur=1;
-	else if (r==0 && g==254 && b==0)
+	//else if (r==0 && g==254 && b==0)
+	else if (r==COLOR_2_R && g==COLOR_2_G && b==COLOR_2_B)
 	  couleur=2;
-	else if (r==0 && g==0 && b==254)
+	//else if (r==0 && g==0 && b==254)
+	else if (r==COLOR_3_R && g==COLOR_3_G && b==COLOR_3_B)
 	  couleur=3;
 
 	
@@ -159,6 +197,7 @@ while (0!=1) {
 	//printf("direction=%i - ",direction);
 
 
+	// ----- Glider moving rules ----- //
 	/// /// /// /// /// /// /// /// /// /// /// /// /// ///
 	/// for different gliders                            ///
 	/// on each 4 following cases                        ///
@@ -189,7 +228,7 @@ while (0!=1) {
 
 	
 	///  --- 1: geometric shape:                         ///
-		switch(couleur){
+	switch(couleur){
 	  case 0:
 	     new_couleur=1;
 	    direction=direction+3;
@@ -251,6 +290,7 @@ while (0!=1) {
 	    break;
 	}
 	*/
+	// END ----- Glider moving rules ----- //
 
 	    
 
@@ -262,24 +302,36 @@ while (0!=1) {
 	//SDL_LockSurface(screen);     
 	switch(new_couleur){
 	  case 0:
-	    nr=254;
+	    //nr=254;
-	    ng=254;
+	    //ng=254;
-	    nb=254;
+	    //nb=254;
+	    nr=COLOR_0_R;
+	    ng=COLOR_0_G;
+	    nb=COLOR_0_B;
 	    break;
 	  case 1:
-	    nr=254;
+	    //nr=254;
-	    ng=0;
+	    //ng=0;
-	    nb=0;
+	    //nb=0;
+	    nr=COLOR_1_R;
+	    ng=COLOR_1_G;
+	    nb=COLOR_1_B;
 	    break;
 	  case 2:
-	    nr=0;
+	    //nr=0;
-	    ng=254;
+	    //ng=254;
-	    nb=0;
+	    //nb=0;
+	    nr=COLOR_2_R;
+	    ng=COLOR_2_G;
+	    nb=COLOR_2_B;
 	    break;
 	  case 3:
-	    nr=0;
+	    //nr=0;
-	    ng=0;
+	    //ng=0;
-	    nb=254;
+	    //nb=254;
+	    nr=COLOR_3_R;
+	    ng=COLOR_3_G;
+	    nb=COLOR_3_B;
 	    break;
 	}
 	putPixel(screen, i, j, SDL_MapRGB(screen->format, nr, ng, nb));
@@ -352,6 +404,7 @@ while (0!=1) {
 	
 	//SDL_UnlockSurface(screen);
 	SDL_Flip(screen);
+
       }
     //}
     //sleep(5);