Conditional branch when movable/moving event is at (x,y)?

Nickster · May 29, 2010

I used to be fairly efficient with XP, but I'm just getting back into it after a few years hiatus and my brain is damn foggy. it's frustrating knowing that I've learned all this stuff before.

I'm using a simple common event where the player can move certain object around the map (i.e. rocks, boxes, etc.) and Im wanting to trigger another event using a Cond. Branch when events x, y, z are moved to the correct (x,y)'s. Am I wrong in wanting to use a branch, should I be using switches? I'm so lost it's not even funny.

Events:

Star · May 29, 2010

Well, you could do if player touch. set move route move away from player. Instead of having to deal with the conditional branches. If you really wanna get technical, it can be done with conditional branches except you'd need to know when the player is pushing the object. Also Conditional Branch would have to look something like this

variable 1 = player x
variable 2 = player y
variable 3 = object x
varaible 4 = object y

if up is being pressed
object y + 1
if player y = object y
if player x = object x
move boulder

if down is being pressed
object y - 1
if player y = object y
if player x = object x
move boulder

if left is being pressed
object x + 1
if player y = object y
if player x = object x
move boulder

if right is being pressed
object x - 1
if player y = object y
if player x = object x
move boulder

silver wind · May 30, 2010

If you don't mind using scripts, my Advanced Event Commands script can do that.
You can use it in a conditional branch:

I'm still working on it, adding some more features etc, but you can have it now. Place it in a new page above main.

[rgss]#----------------------------------------------------#
# Advanced event commands #
# #
# made by: Silver Wind #
# v1.0 #
#----------------------------------------------------#
# Instructions: #
# -Use one of the following lines inside a #
# Conditional Branch (in the script box). #
# #
# event_is_at?(x,y) #
# taken_tile?(x,y) #
# #
# -To create a new event, put this code in a #
# script box. It can be used for bullets, etc. #
# #
# spawn_event(sprite, name, through, x, y) * #
# move_route_copy(from,to) ** #
# #
# - To check if 2 events touch, use: #
# event_touch?(event1,event2) #
# #
# * The last 4 are optional. #
# for example: #
# my_sprite = "001-Fighter01.png" #
# spawn_new_event(my_sprite) #
# spawn_new_event(my_sprite, "Some Name") #
# spawn_new_event(my_sprite, "Some Name" , true) #
# ** Set the move route of your event. #
# from & to can be the event name or the id. #
#----------------------------------------------------#
class Game_Event < Game_Character
attr_reader :erased
end

class Interpreter

attr_reader :event_id

def get_event
return $game_map.events[@event_id]
end
=begin
 def event_x
 return (get_event).x
 end

 def event_y
 return (get_event).y
 end

 def event_is_at?(x,y)
 if ((event_x)==x) and ((event_y)==y)
 p 'true'
 return true
 end
 p 'false'
 return false
 end
=end
end

class Game_System
#attr_reader :map_interpreter

def active_event_id
return @map_interpreter.event_id
end

end

class Game_Temp
attr_accessor :new_events
end

class Game_Character
attr_reader :move_route
end

class Game_Event

def name
return @event.name
end

def get_speed
return @move_speed
end

def set_speed(s)
@move_speed = s
update
end

end

class Spriteset_Map

def add_sprite(event_id)
if event_id.is_a?(Array)
event_id.each {|id| add_sprite(id) }
return
end
id = event_id
sprite = Sprite_Character.new(@viewport1, $game_map.events[id])
@character_sprites.push(sprite)
end

alias new_event_update update
def update
event_ids = $game_temp.new_events
unless event_ids.nil?
add_sprite(event_ids)
$game_temp.new_events = nil
end
new_event_update
end

end

class Scene_Map
attr_accessor :spriteset
end

class Game_Map

def occupied_tile?(x,y)
return false if @map.events.keys.size ==0
for i in @map.events.keys
e = @events
if (e.x == x) and (e.y==y)
return true
end
end
return false
end

def new_event(sprite, name, through=false, x=0,y=0)
ids = @map.events.keys
event_id = (ids.size==0) ? 1 : ((ids.max) +1)
newx = x
newy = y
# if the tile is taken, select an empty nearby tile.
while (occupied_tile?(newx,newy))
# advance non equally, to get tiles like: (1,15)
(rand(1) ==0) ? newx += 1 : newy += 1
end
new_event = RPG::Event.new(newx,newy)
new_event.name = name.nil? ? "EV00" + event_id.to_s : name
# set the graphic of the event
new_event.pages[0].graphic.character_name = sprite
new_event.pages[0].through = through
l = @map.events.keys.length
@map.events.keys[l]=event_id
@map.events[event_id]=new_event
game_event = Game_Event.new(@map_id, new_event)
@events[event_id] = game_event
# This flag is used in Spriteset_Map to add the new sprite.
if $game_temp.new_events.nil?
$game_temp.new_events = [event_id]
else
$game_temp.new_events.push(event_id)
end

end

def get_event_by_name(name)
for i in @map.events.keys
ev = @events
return ev if ev.name == name
end
#p "Error: No such event #{name}"
return nil
end

# from, to : event name or id
def copy_move_route(from, to)
if from.is_a?(String)
from = get_event_by_name(from)
from = from.id
end
if to.is_a?(String)
event = get_event_by_name(to)
else
event = @events[to]
end
move = @events[from].move_route
event.force_move_route(move)
speed = @events[from].get_speed
event.set_speed(speed)
end

#def _at?(x,y) #event_is_at?(x,y)
#return @map_interpreter.event_is_at?(x,y)
#end

def event_touch?(event1, event2)
=begin
 if event1.is_a?(String)
 e1 = get_event_by_name(event1)
 else
 e1 = @events[event1]
 end
=end
if event2.is_a?(String)
e2 = get_event_by_name(event2)
else
e2 = @events[event2]
end
return false if e2.erased
x = e2.x
y = e2.y
# is the event below/above/beside event2
right = event_is_at?(event1,x+1,y)
left = event_is_at?(event1, x-1,y)
below = event_is_at?(event1, x,y+1)
above = event_is_at?(event1, x,y-1)
result = ( right or left or below or above )
return result
end

# new
=begin
 def event_x
 return nil unless $scene.is_a?(Scene_Map)
 id = $game_system.active_event_id
 return @events[id].x
 end

 def event_y
 return nil unless $scene.is_a?(Scene_Map)
 id = $game_system.active_event_id
 return @events[id].y
 end

 def _at?(x,y) # was event_is_at?(x,y)
 return false unless $scene.is_a?(Scene_Map)
 if ((event_x)==x) and ((event_y)==y)
 p 'true'
 return true
 end
 p 'false'
 return false
 end
=end

def event_is_at?(event, x, y)
if event.is_a?(String)
e = get_event_by_name(event)
else
e = @events[event]
end
return false if e.erased
return (e.x==x and e.y==y)
end

#new
def erase_event(event)
if event.is_a?(String)
e = get_event_by_name(event)
else
e = @events[event]
end
e.erase
end

end

# ------------------------------------------------------------------ #
def event_is_at?(event, x, y)
return $game_map.event_is_at?(event,x,y)
end

def taken_tile?(x,y)
return $game_map.occupied_tile?(x,y)
end

def spawn_event(sprite, name, through ,x ,y)
$game_map.new_event(sprite, name, through ,x ,y)
end

def move_route_copy(from,to)
$game_map.copy_move_route(from,to)
end

def erase_event(event)
$game_map.erase_event(event)
end

# ----------------------------------------------------- #
# Check if event 1 touches event2. #
# event 1,2 : event name or id #
# ----------------------------------------------------- #
def event_touch?(event1,event2)
$game_map.event_touch?(event1,event2)
end

# ------------------------------------------------------------------ #
[/rgss]

Glitchfinder · Jun 1, 2010

Actually, the only bit of script he would need is the following:

Code:

get_character(event_id).x == wanted_x && get_character(event_id).y == wanted_y

The get_character method is default in the Interpreter, so this doesn't require custom scripts to be inserted. All it requires is that the event_id bits I added be changed to the ID of the mobile event, and the wanted_x and wanted_y should be changed to the x and y positions you want to check. (Remember that the far left row of tiles is x position 0, and the top row of tiles is y position 0) This bit of script should go in the script section of the conditional branch, which should be on the last page of options.

Nickster · Jun 8, 2010

alright, as soon as I get on my computer with XP on it. i'll try these out.

Envision, Create, Share

Conditional branch when movable/moving event is at (x,y)?

Nickster

Star

silver wind

Glitchfinder

Nickster

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