ça marche pas mais ça compile

display.c

 #include "display.h"
+#include "one_armed_bandit.h"
 
 // the following global variables are defined for graphical objects only:
 // the images size is 104x128 pixels
 
 
-
-void *display_func(void *param){
+SDL_Window* init_display(){
 	int one_arm_width, one_arm_height;
 	SDL_Window *window;
 
@@ -28,8 +28,34 @@ void *display_func(void *param){
 			                                                   &object_rect))!=NULL);
   	object_height=object_rect.h/9;
 
+	return window;
+}
+
+display_wheel(int pixel,int offset){
+    // -------------------------
+	// example of board display:
+	// -------------------------
+	SDL_Rect src_rect, dst_rect=object_rect;
+	dst_rect.h=object_height*1.5;			// display 1.5 object on screen for a wheel
+	src_rect=dst_rect;
+	src_rect.x=0;
+
+	// src_rect.y is positionned here on the 2nd object of objects.png
+    //85 + index*104  + 1
+	src_rect.y=object_height*offset;
+	dst_rect.x= pixel;
+	dst_rect.y=410-object_height/2;     // setup the coord. of the icon in the global renderer
+	SDL_RenderCopy(renderer, objects_texture, &src_rect, &dst_rect);
+}
 
 
+
+void *display_func(void *param){
+	printf("\ndisplay_func");
+	machine mas = *((machine *) param); 
+
+	while(1){
+
 		SDL_RenderCopy(renderer, one_arm_texture, NULL, &one_arm_rect);
 
 		SDL_Rect coin_rect_pos={700, 1020, coin_rect.w, coin_rect.h};
@@ -39,21 +65,15 @@ void *display_func(void *param){
 			SDL_RenderCopy(renderer, coin_texture, NULL, &coin_rect_pos);
 		}
 
-
+		for(int i=0; i<3; i++){
+			display_wheel(85+104*i + 1,mas.wheels[i].current_px);
+		}
 
 		
 		SDL_RenderPresent(renderer);
 		wait_until(20);
-	// -------------------------
-  	// 		managing events:
-	// -------------------------
 
-
-	SDL_DestroyTexture(objects_texture);
-  	SDL_DestroyTexture(one_arm_texture);
-	SDL_DestroyRenderer(renderer);
-	SDL_DestroyWindow(window);
-	SDL_Quit();
+	}
 	return NULL;
 }
 

display.h

@@ -19,7 +19,8 @@ static SDL_Rect object_rect;
 int object_height; // global for convenience
 
 void *display_func(void *param);
-int wheel_spin(double offset,int pixel,int time);
+display_wheel(int pixel,int offset);
+SDL_Window* init_display();
 
 // height of one single object 
 extern int object_height;		// global for convenience

one_armed_bandit.c

@@ -7,7 +7,10 @@
 #include <pthread.h>
 #include <semaphore.h>
 #include "utilities.h"
+#include "display.h"
 #include "one_armed_bandit.h"
+#include "threads.h"
+
 
 int insert_coin(){
 
@@ -34,10 +37,29 @@ wheel create_wheel(int pixel,int speed){
 
 int main()
 {
-	pthread_t threads[5];
 	
+	SDL_Window* window = init_display();
+
+	pthread_t threads[4];
+
+
+
+	machine mas;
+	mas.wheels[0] = create_wheel(85,6);
+	mas.wheels[1] = create_wheel(85+105,4);
+	mas.wheels[2] = create_wheel(85+104*2+1,2);
+
+	for(int i = 0; i<3; i++){
+		run_thread(&threads[i],wheel_func,&mas.wheels[i]);
+	}
+
+	display_func(&mas);
 
-	display_func(NULL);
+	SDL_DestroyTexture(objects_texture);
+  	SDL_DestroyTexture(one_arm_texture);
+	SDL_DestroyRenderer(renderer);
+	SDL_DestroyWindow(window);
+	SDL_Quit();
 
 	SDL_Event event;
 		bool quit=false;

one_armed_bandit.h

@@ -8,7 +8,7 @@
 #include "wheel.h";
 
 typedef struct machine_a_sous{
-  wheel* wheels;
+  wheel wheels[WHEEL_NB];
   int player_wallet;
   int machine_wallet;
 } machine;

wheel.c

@@ -11,41 +11,37 @@ int get_current_px(){
     return -1;
 }
 
-int wheel_spin(double offset, int pixel,int time){
 
-	// -------------------------
-	// example of board display:
-	// -------------------------
-	SDL_Rect src_rect, dst_rect=object_rect;
-	dst_rect.h=object_height*1.5;			// display 1.5 object on screen for a wheel
-	src_rect=dst_rect;
-	src_rect.x=0;
 
-	// src_rect.y is positionned here on the 2nd object of objects.png
-    //85 + index*104  + 1
-	src_rect.y=object_height*offset;
-	dst_rect.x= pixel;
-	dst_rect.y=410-object_height/2;     // setup the coord. of the icon in the global renderer
-	SDL_RenderCopy(renderer, objects_texture, &src_rect, &dst_rect);
 
-    wait_until(time);
 
-	return 0;
-}
 
 
 void *wheel_func(void *param){
-
+    printf("\nwheel_func");
     wheel id = *((wheel *) param);
 
     while(1){
-		for(double a = 0; a<8.0; a +=0.1){
-
-			wheel_spin(a,id.current_px,id.speed);
+        // for(double a = 0; a<8.0; a +=0.1){
 
+            // wheel_spin(a,id.current_px,id.speed);
+      wheel_spin_1_tick(&id);
+      wait_until(wheel_delay_ms(id));
     }
 }
 
+int wheel_spin_1_tick(wheel* this){
+  this->current_px = (this->current_px + 2) % 896 ;
+}
 
+int wheel_delay_ms(wheel this){
+  return this.speed * 2;
+}
 
+int stop_wheel(wheel this){
+  while (this.current_px % 128 != 0) {
+    wheel_spin_1_tick(&this);
+    wait_until(wheel_delay_ms(this));
+  }
+  this.speed = 0;
 }
\ No newline at end of file

wheel.h

@@ -4,6 +4,9 @@ typedef struct roue{
 } wheel;
 
 
-int wheel_spin(double offset, int pixel,int time);
 int set_speed(int s);
 int get_current_px();
+void *wheel_func(void *param);
+int wheel_spin_1_tick(wheel* this);
+int wheel_delay_ms(wheel this);
+int stop_wheel(wheel this);