player.cpp as of 2024-06-21

#include <object.hpp>
#include <player.hpp>
#include <tile.hpp>

using namespace kit;

#define OBJIMG(_index) gl_objImg[_index]

#define OBJIMG_LEVER_WALL     OBJIMG(1)
#define OBJIMG_ABILITY_SHRINK OBJIMG(2)
#define OBJIMG_ABILITY_DBLJMP OBJIMG(3)
#define OBJIMG_SIGNPOST_WOOD  OBJIMG(4)





//do not use this object in a scene with more than 2 states
//also, there can in theory be multiple 1lever(s) in a scene,
 //as long as they share the same values of scene_old&new
union _obj_1lever {
  struct {
    u16        scene_old;
    u16        scene_new;
    u16       _padding16;
    bool            init;
    bool         flipped;
    shape::rect rect_dst;
    Bitmap*          img;
  };
  Object o;
};
#define obj ((_obj_1lever*)_obj_a)
bool obj_1lever(Object* _obj_a, bool render_only){
  if(!obj->init){
    obj->init    =  true;
    obj->flipped = false;

    obj->rect_dst.x = obj->o.x;
    obj->rect_dst.y = obj->o.y;
    obj->rect_dst.w = obj->o.size.x;
    obj->rect_dst.h = obj->o.size.y;

    obj->img = OBJIMG_LEVER_WALL;

  }


  shape::rect rect_src(0,0, 8,24);
  bool scene_changed = false;

  //if player is touching the lever
  if(rects_overlapping(gl_player.getRect(), obj->rect_dst)){
    rect_src.y = 24; //highlighted
    //if player activates the lever
    if(!render_only && CTRLSTATE_GET(down_p)){
      //(this does not keep track of scene states, so don't
       //use this object on a scene with more than 2 states!)
      swapScene(obj->scene_old, obj->scene_new);
      obj->flipped ^= 1;
      scene_changed = true;
    }

  }

  if(obj->flipped) rect_src.x = 8;


  if(obj->img) obj->img->blitRect(&obj->rect_dst, &rect_src, 0xff00ff);

  return scene_changed;

}
#undef obj