int screen_drawRects(SDL_Renderer* renderer, SDL_Rect* rects, int count)
{
if( SDL_RenderDrawRects(renderer, rects, count) != 0 )
{
LOG("draw rects fail: %s", SDL_GetError());
return 1;
}
return 0;
}
CAMLprim value
caml_SDL_RenderDrawRects(value renderer, value ml_rects)
{
unsigned int i;
unsigned int count = Wosize_val(ml_rects);
SDL_Rect * rects = malloc(count * sizeof(SDL_Rect));
for (i = 0; i < count; i++) {
value _rect = Field(ml_rects, i);
SDL_Rect_val(&(rects[i]), _rect);
}
int r = SDL_RenderDrawRects(
SDL_Renderer_val(renderer),
rects, count);
free(rects);
if (r) caml_failwith("Sdlrender.draw_rects");
return Val_unit;
}
//Draws an array of rectangles
//param:rectangles->The rectangles to draw
//param:numberOfRectangles->The number of rectangles in the array
//param:color->The color to draw the rectangles
//returns 0 for success, -1 for errors
int SpriteBatch::DrawRects(SDL_Rect* rectangles, int numberOfRectangles, SDL_Color color)
{
//Check if spritebatch.begin has been called
if(!begun)
{
std::cout<<"Begin must be called before attempting to draw"<<std::endl;
return -1;
}
//Make sure number of rectangles is valid
if(numberOfRectangles <= 0)
{
std::cout<<"Draw Rects error: Size must be greater than 0"<<std::endl;
return -1;
}
int result = 0;
//Set the draw color
result = SDL_SetRenderDrawColor(renderer, color.r, color.g, color.b, color.a);
//Check for color setting problems
if(result != 0)
{
std::cout<<"DrawRects error: Problem setting rectangle color" << std::endl;
return result;
}
//Draw the rectangles
result = SDL_RenderDrawRects(renderer, rectangles, numberOfRectangles);
//Check for draw problems
if(result !=0)
{
std::cout<<"DrawRects error: Problem drawing rectangles"<<std::endl;
return result;
}
//Return success
return result;
}
