object_pairmove.h

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#include "unit/field/field.h"
#include "types.h"
#include "field_obj.h"
#include "game_state.h"
 
// Imil and Fuchin Falls, and Vale's cave.
 
/// Moves the character the player controls (in mode 27) and actor id together
/// by (dx, dz) pixels to the centres of their cells, at a pixel a frame, as
/// when pushing it; the actor faces the way it goes.
static void SceneActor_PlacePairAtOffset(s32 id, s32 dx, s32 dz) {
  struct FieldActor *actor;
  struct FieldActor *other;
  s32 x;
  s32 z;
 
  actor = Object_GetById(gGameState.selectedActor);
  other = Object_GetById(id);
  Engine_EventBegin();
  {
    x = ((actor->x.fixed + (dx << 16)) & 0xFFF00000) + 0x80000;
    z = ((actor->z.fixed + (dz << 16)) & 0xFFF00000) + 0x80000;
 
    actor->speed = 0x10000;
    actor->acceleration = 0x8000;
    Engine_ObjectSetPosition(actor, x, actor->y.fixed, z);
  }
  Object_SetMode(actor, 27);
  {
    x = ((other->x.fixed + (dx << 16)) & 0xFFF00000) + 0x80000;
    z = ((other->z.fixed + (dz << 16)) & 0xFFF00000) + 0x80000;
 
    other->speed = 0x10000;
    other->acceleration = 0x8000;
    Engine_ObjectSetPosition(other, x, other->y.fixed, z);
  }
  if (dx < 0 || dz < 0) {
    Object_SetMode(other, 4);
  } else {
    Object_SetMode(other, 3);
  }
  FieldObject_WaitForMove(actor);
  Engine_EventEnd();
}