[Resolved] Picture Animations?

[brainstorm]

I need help making a picture animation in a Scene Here's all I have:

bitmap = RPG::Cache.picture("locker")
    cw = bitmap.width / 4
    ch = bitmap.height
    @face_frame = 0
    src_rect = Rect.new(@face_frame * 88, 0, 88, bitmap.height)
    #src_rect = Rect.new(0, 0, cw, ch)
    self.contents.blt(x - cw * 1.5, y - ch, bitmap, src_rect)

Anyone know how to Animate it?

 

[linkz0r]

* Supposing this bitmap has 4 animation frames in a row with the same width and height...

Make a sprite, set its bitmap as "locker" and set its src_rect property for the position that you want in your animation.

Suppose in some part of the script you initialized your sprite and bitmap:

def initialize
  @sprite = Sprite.new
  @sprite.bitmap = RPG::Cache.picture("locker")
  @timing = 4
  @counter = 0
  @pattern = 0
end

Where @sprite is the sprite that will show up the bitmap in the screen, @timing is the number of frames to wait until it goes to the next animation frame, and the @counter is to count the frames until it reach the limit at @timing and go to the next animation frame.

Now suppose you have an update method in this class. All you´ll do is to check if @counter reached the value at @timing. If it reached, reset @counter and change to the next animation frame. The new animation frame will be @pattern + 1, and in your case, as the limit of animation frames is 4, when it reaches that value (4-1=3, because it goes from 0 to 3) the @pattern will be reset to 0 (the initial animation frame). Look:

def update
  if @counter == @timing
    @counter = 0
    cw = @sprite.bitmap.width / 4
    ch = @sprite.bitmap.height
    if @pattern == 3
      @pattern = 0
    else
      @pattern += 1
    end
    pt = @pattern
    @sprite.src_rect.set(cw * pt, 0, cw, ch)
  else
    @counter += 1
  end
end

Simple as this ^^ (i guess...) That way you don´t need to call time-consuming bitmap methods.

Any question, just ask.

 

[brainstorm]

It doesn't work....

EDIT:::
I got it to show one Frame but the rest don't show....

def draw_locker_graphic
    if @sprite != nil
      @sprite = nil
    end
    @sprite = Sprite.new
    @sprite.bitmap = RPG::Cache.picture("locker")
    @timing = 4
    @counter = 0
    @pattern = 0
    if @counter == @timing
      @counter = 0
      cw = @sprite.bitmap.width / 4
      ch = @sprite.bitmap.height
      if @pattern == 3
        @pattern = 0
      else
        @pattern += 1
      end
      pt = @pattern
      @sprite.src_rect.set(cw * pt, 0, cw, ch)
    else
      cw = @sprite.bitmap.width / 4
      ch = @sprite.bitmap.height
      #if @pattern == 3
      #  @pattern = 0
      #else
      #  @pattern += 1
      #end
      @counter += 1
      pt = @pattern
      @sprite.src_rect.set(cw * pt, 0, cw, ch)
    end
  end

 

[SephirothSpawn]

I use this to draw animated sprites on windows and such.

#==============================================================================
# ** Bitmap
#==============================================================================

class Bitmap
  #--------------------------------------------------------------------------
  # * Animated Sprites Options
  #--------------------------------------------------------------------------
  Anim_Sprite_Reset_Frames = 8
  Anim_Sprite_Frame_Width  = 4
  Anim_Sprite_Frame_Height = 4
  #--------------------------------------------------------------------------
  # * Scale Blt
  #--------------------------------------------------------------------------
  def scale_blt(dest_rect, src_bitmap, 
      src_rect = Rect.new(0, 0, src_bitmap.width, src_bitmap.height), opacity = 255)
    w, h = src_rect.width, src_rect.height
    scale = [w / dest_rect.width.to_f, h / dest_rect.height.to_f].max
    ow, oh = (w / scale).to_i, (h / scale).to_i
    ox, oy = (dest_rect.width - ow) / 2, (dest_rect.height - oh) / 2
    stretch_blt(Rect.new(ox + dest_rect.x, oy + dest_rect.y, ow, oh), 
      src_bitmap, src_rect )
  end
  #--------------------------------------------------------------------------
  # * Draw Animated Sprite
  #--------------------------------------------------------------------------
  def draw_anim_sprite(x, y, w, h, name, hue, stance = 0)
    # Gets Frame
    frame = (Graphics.frame_count / Anim_Sprite_Reset_Frames) % 
            Anim_Sprite_Frame_Width
    # Draw Sprite
    draw_sprite(x, y, w, h, name, hue, stance, frame)
  end
  #--------------------------------------------------------------------------
  # * Draw Sprite
  #--------------------------------------------------------------------------
  def draw_sprite(x, y, w, h, name, hue, stance = 0, frame = 0)
    # Gets Bitmap
    bitmap = RPG::Cache.character(name, hue)
    # Bitmap Division
    cw = bitmap.width / Anim_Sprite_Frame_Width
    ch = bitmap.height / Anim_Sprite_Frame_Height
    # Gets Animation Offsets
    x_off, y_off = cw * frame, ch * stance
    # Clears Area
    self.fill_rect(Rect.new(x, y, w, h), Color.new(0, 0, 0, 0))
    # Draws Bitmap
    self.scale_blt(Rect.new(x, y, w, h), bitmap, 
      Rect.new(x_off, y_off, cw, ch))
  end

To use it, in your refresh method or main drawing phase, use

self.contents.draw_anim_sprite(x, y, w, h, name, hue)

It scales whatever character file automatically into your x, y, w, h rectangle and draws it depending on the frame count and Anim_Sprite_Reset_Frames constant.

Then, in your update method, you will need something like:

  def update
    # ...
    if Graphics.frame_count % Bitmap::Anim_Sprite_Reset_Frames == 0
      <draw_animted_sprite>
    end
    # ...
  end

It clears the area of where you are scaling the character sprite, and redraws it every reset frame.

 

[brainstorm]

Still Not working .... >_> I think I'm doing something wrong....


It's the Image It isn't showing up....

EDIT;::: Okay you see this is the Graphic:

http://img400.imageshack.us/img400/8128/lockerzb8.png[/IMG]

With this Script:

bitmap = @bitmap
    cw = bitmap.width / 4
    ch = bitmap.height
    @face_frame = 0
    #src_rect = Rect.new(@face_frame * 88, 0, 88, bitmap.height)
    #src_rect = Rect.new(0, 0, cw, ch)
    src_rect = Rect.new(0, 0, 0, 0)
    if @face_frame <= 3
      src_rect = nil
      @face_frame += 1
      src_rect = Rect.new(cw * @face_frame, 0, cw, ch)
    else
      @face_frame = 0
    end
    self.contents.blt(x - cw * 1.5, y - ch, bitmap, src_rect)

The Graphic Stops at Frame 2


So basically It just stops making frames



EDIT:::::: Got it working!!!!! yay!! ^_^

 

[Trickster]

This topic has been resolved. If sasuke89 or any other users have any questions or further problems regarding this topic, please create a new thread about them.

Thank you!