version 0.5

[zeRace] / car.c

diff --git a/car.c b/car.c
index 3c9be9b..9caf3bd 100644 (file)
--- a/car.c
+++ b/car.c
@@ -4,20 +4,18 @@
 
 void move_car(struct _car *car,int keys,SDL_Surface *fun)
 {
-  Uint32 c,r,g,b;
+  Uint32 c;
+  Uint8 r,g,b;
   
   /* reset flags */
-  car->lapflag=0;
   car->crashflag=0;
   
   /* get the pixel color under the center of car in the function map */
   c=getpixel(fun,car->x,car->y);
   /* red layer (checkpoints) */
-  r=(c>>RSHIFT)&0xff;
   /* green layer (road quality) */
-  g=(c>>GSHIFT)&0xff;
   /* blue layer (grip) */
-  b=(c>>BSHIFT)&0xff;
+  SDL_GetRGB(c,fun->format,&r,&g,&b);
 
   if (keys & 8) /* up */
     car->speed+=0.01*2*COEFF;
@@ -69,8 +67,17 @@ void move_car(struct _car *car,int keys,SDL_Surface *fun)
     car->crashflag=1;
   }
   
-  /* if we are on the next checkpoint, validate it (no missing allowed) */
-  if (r/8==car->lastcheck+1) car->lastcheck++;
+  /* if we are on the next checkpoint, validate it */
+  if (r/8==car->lastcheck+1)
+  {
+    /* If we validate a missed checkpoint */
+    if (car->lapflag==3) car->lapflag=4;
+    car->lastcheck++;
+  }
+  
+  /* if we missed a checkpoint */
+  if ((r/8>car->lastcheck+1) && (car->lastcheck!=0)) car->lapflag=3;
+
   /* if we validate all and start over, we complete a turn */
   if (r/8==0 && car->lastcheck==31)
   {
@@ -80,5 +87,24 @@ void move_car(struct _car *car,int keys,SDL_Surface *fun)
     car->lapflag=1;
   }
   
+  /* if we are at the start but not each checkpoint validate, it's an incomplete lap */
+  if (r/8==0 && r!=0 && car->lastcheck!=31 && car->lastcheck>0)
+  {
+    car->lastcheck=0;
+    car->lapflag=2;
+  }
+  
+  /* if the car is braking, display red lights */
+  if (keys & 4 && car->speed>0.1) car->lights_brake=1; else car->lights_brake=0;
+  
+  /* if the car is going backwards, display white lights */
+  if (car->speed<-0.1) car->lights_backwards=1; else car->lights_backwards=0;
+  
+  /* if the car is stopped, then warning */
+  if (car->speed>=-0.1 && car->speed<=0.1)
+    car->lights_warning=1;
+  else
+    car->lights_warning=0;
+  
   return;
 }