Class: RPG::Weather

Inherits:
Object
  • Object
show all
Defined in:
lib/rpg/weather.rb

Overview

Class for weather effects (rain, storm, snow) displayed via RPGXP’s Event command.

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(viewport = nil) ⇒ Weather

Returns a new instance of Weather.



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# File 'lib/rpg/weather.rb', line 27

def initialize(viewport = nil)
  @type = 0
  @max = 0
  @ox = 0
  @oy = 0
  color1 = Color.new(255, 255, 255, 255)
  color2 = Color.new(255, 255, 255, 128)
  @rain_bitmap = Bitmap.new(7, 56)
  for i in 0..6
    @rain_bitmap.fill_rect(6-i, i*8, 1, 8, color1)
  end
  @storm_bitmap = Bitmap.new(34, 64)
  for i in 0..31
    @storm_bitmap.fill_rect(33-i, i*2, 1, 2, color2)
    @storm_bitmap.fill_rect(32-i, i*2, 1, 2, color1)
    @storm_bitmap.fill_rect(31-i, i*2, 1, 2, color2)
  end
  @snow_bitmap = Bitmap.new(6, 6)
  @snow_bitmap.fill_rect(0, 1, 6, 4, color2)
  @snow_bitmap.fill_rect(1, 0, 4, 6, color2)
  @snow_bitmap.fill_rect(1, 2, 4, 2, color1)
  @snow_bitmap.fill_rect(2, 1, 2, 4, color1)
  @sprites = []
  for i in 1..40
    sprite = Sprite.new(viewport)
    sprite.z = 1000
    sprite.visible = false
    sprite.opacity = 0
    @sprites.push(sprite)
  end
end

Instance Attribute Details

#max ⇒ Object

Amount of weather to be shown at once (0..40).



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# File 'lib/rpg/weather.rb', line 17

def max
  @max
end

#ox ⇒ Object

The X-coordinate of the effect’s starting point. Correlates with the tilemap starting point and scrolls.



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# File 'lib/rpg/weather.rb', line 21

def ox
  @ox
end

#oy ⇒ Object

The Y-coordinate of the effect’s starting point. Correlates with the tilemap starting point and scrolls.



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# File 'lib/rpg/weather.rb', line 25

def oy
  @oy
end

#type ⇒ Object

Weather type:

0

none

1

rain

2

storm

3

snow



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# File 'lib/rpg/weather.rb', line 14

def type
  @type
end

Instance Method Details

#dispose ⇒ Object

Frees a weather effect.



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# File 'lib/rpg/weather.rb', line 60

def dispose
  for sprite in @sprites
    sprite.dispose
  end
  @rain_bitmap.dispose
  @storm_bitmap.dispose
  @snow_bitmap.dispose
end

#update ⇒ Object

Advances the weather effect. As a rule, this method is called once per frame.



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# File 'lib/rpg/weather.rb', line 130

def update
  return if @type == 0
  for i in 1..@max
    sprite = @sprites[i]
    if sprite == nil
      break
    end
    if @type == 1
      sprite.x -= 2
      sprite.y += 16
      sprite.opacity -= 8
    end
    if @type == 2
      sprite.x -= 8
      sprite.y += 16
      sprite.opacity -= 12
    end
    if @type == 3
      sprite.x -= 2
      sprite.y += 8
      sprite.opacity -= 8
    end
    x = sprite.x - @ox
    y = sprite.y - @oy
    if sprite.opacity < 64 or x < -50 or x > 750 or y < -300 or y > 500
      sprite.x = rand(800) - 50 + @ox
      sprite.y = rand(800) - 200 + @oy
      sprite.opacity = 255
    end
  end
end