Sprite animation linked with an action
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last edited byHey people very new to all this but having a great time. So here’s the issue, I’ve been working on sprite animation, using the change texture feature and a sprite sheet. What I now want is for my sprite animation to happen when I run an action. So for example I press a move down button and my character transitions through a walking animation. I can’t figure out a way to get something like this to happen.
My main issue is that for my animation to work it needs to be in Update and all my actions are in touch began.
I’ve seen the game tutorial using the players position to update the spritesheet but I don’t know how this would work for different directions, like up, down, left, right.
Anyway I hope this question makes some sense, I’ve been working really hard to improve but just can’t seem to figure this one out, any help is really truly appreciated
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last edited by@jackattack
Any chance we can get the sprite sheet your using?
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last edited bySure can do, what format can I post it on here? I basically just cropped one from online to make it easier to work with
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last edited by stephen@jackattack said:
Sure can do, what format can I post it on here?
You will have to upload somewhere then hyperlink it. I personally use Imgur
@jackattack said:
I basically just cropped one from online to make it easier to work with
no problem its just to help replicate the same execution you have 😎
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last edited bymy sprite sheet
Just using one row of this in my code for a basic walk forward animation
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last edited byhere is my script example. sorry it took a while lol. its not very clean but i think it should be easy to follow. let me know if you have any questions. you should benable to use thenSprite class to create other objects and as you will see this approach doesnt use the update method at all or depend on position.
from scene import * from time import sleep import sound import random import math A = Action Character_Male='IMG_3039.jpg' def get_texture(sheet, x, y, w, h): ''' for cleaner Code ''' return Texture(sheet).subtexture(Rect(x, y, w, h)) class Direction: ''' simple Constants ''' NORTH="north" SOUTH="south" EAST="east" WEST="west" class Sprite(SpriteNode): ''' Use this class for game objects ''' def __init__(self,sprite_sheet, *args, **kwargs): self.sprite_sheet=sprite_sheet self.animations=dict( {"idle":get_texture(self.sprite_sheet, 0.00, 0.75, 0.33, 0.25)}) SpriteNode.__init__(self, texture=self.animations["idle"], *args, **kwargs) self.movement_speed=50 self.active_direction=Direction.SOUTH self.Texture_Group( "move-north", [ get_texture(self.sprite_sheet, 0.00, 0.75, 0.33, 0.25), get_texture(self.sprite_sheet, 0.33, 0.75, 0.33, 0.25), get_texture(self.sprite_sheet, 0.66, 0.75, 0.33, 0.25) ]) self.Texture_Group( "move-south", [ get_texture(self.sprite_sheet, 0.00, 0.50, 0.33, 0.25), get_texture(self.sprite_sheet, 0.33, 0.50, 0.33, 0.25), get_texture(self.sprite_sheet, 0.66, 0.50, 0.33, 0.25) ]) self.Texture_Group( "move-east", [ get_texture(self.sprite_sheet, 0.00, 0.25, 0.33, 0.25), get_texture(self.sprite_sheet, 0.33, 0.25, 0.33, 0.25), get_texture(self.sprite_sheet, 0.66, 0.25, 0.33, 0.25) ]) self.Texture_Group( "move-west", [ get_texture(self.sprite_sheet, 0.00, 0.00, 0.33, 0.25), get_texture(self.sprite_sheet, 0.33, 0.00, 0.33, 0.25), get_texture(self.sprite_sheet, 0.66, 0.00, 0.33, 0.25) ]) # decorator alows the use of time.sleep() without blocking @ui.in_background def Run_Animation(self, tag): for x in self.animations[f"{tag}-{self.active_direction}"]: self.texture = x sleep(0.2) self.texture=self.animations[f"{tag}-{self.active_direction}"][0] def Texture_Group(self, tag, texture_list): self.animations[tag]=texture_list def Change_Direction(self, direction): self.active_direction=direction if direction == Direction.SOUTH: self.velocity=(0.0, -self.movement_speed) elif direction == Direction.NORTH: self.velocity=(0.0, self.movement_speed) elif direction == Direction.EAST: self.velocity=(-self.movement_speed, 0.0) elif direction == Direction.WEST: self.velocity=(self.movement_speed, 0.0) class Button(SpriteNode): ''' Simple Button Object ''' def __init__(self, text, meta, action=None, *args, **kwargs): SpriteNode.__init__(self, Texture('pzl:Gray7'), *args, **kwargs) self.texture=Texture('pzl:Gray7') self.action=action self.text=LabelNode(text, anchor_point=(0.5, 0.5), color="yellow", parent=self) self.meta=meta # Not used in this example but can be lol def Pressed(self): self.action(self) class MyScene (Scene): def setup(self): self.screen="game" self.background_color='black' self.buttons=[] self.player=Sprite(Character_Male, position=self.size/2, scale=4, parent=self) self.n = -1 self.up_button=Button( "↑", Direction.NORTH, position=Point(get_screen_size()[0]/4*3, 270), scale=2, parent=self) self.buttons.append(self.up_button) self.down_button=Button( "↓", Direction.SOUTH, position=Point(get_screen_size()[0]/4*3, 130), scale=2, parent=self) self.buttons.append(self.down_button) self.right_button=Button( "→", Direction.WEST, position=Point(get_screen_size()[0]/4*3+70, 200), scale=2, parent=self) self.buttons.append(self.right_button) self.left_button=Button( "←", Direction.EAST, position=Point(get_screen_size()[0]/4*3-70, 200), scale=2, parent=self) self.buttons.append(self.left_button) def touch_began(self, touch): for btn in self.buttons: if touch.location in btn.bbox: self.player.Change_Direction(btn.meta) self.player.run_action( Action.move_by( self.player.velocity[0], self.player.velocity[1])) self.player.Run_Animation("move") def touch_ended(self, touch): pass if __name__ == '__main__': run(MyScene(), show_fps=True)
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last edited byWow this works perfectly thank you so much, I’m going to take some time to study it and try to learn how to recreate it with some other effects. Thanks for taking the time out 😌
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last edited byI’ve learnt so much reading your code, love the way you’ve done so many things, spent ages going through it all. Could you give me any insight into the order you went about writing it?
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last edited byAlso the only bit I didn’t really understand was when you set up the button class you used init, but then you did spritenode.init what is this for?
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last edited by@jackattack said:
Also the only bit I didn’t really understand was when you set up the button class you used init, but then you did spritenode.init what is this for?
when you subclass an object that has
__init__paramiters you must either call the Parent class__init__as i did here or you can usesuper(). if you do not call the parent's__init__then the new object will not inherit the dirived.
@jackattack said:
I’ve learnt so much reading your code, love the way you’ve done so many things, spent ages going through it all. Could you give me any insight into the order you went about writing it?
I usually start with utility classes. in my Example game this would be stuff like
Screen()andEventManager(), then visual testing. at this point i woud start myButtonNode()andAnimations().. now i create myPlayer(),GUI()and o on. the order on the script itself doesnt matter with Object Orientated Programing (OOP) just remember the Interpreter exec the scripts top down. so in order to Dirive from from Class A it must exist before Class B.
@jackattack said:
Wow this works perfectly thank you so much, I’m going to take some time to study it and try to learn how to recreate it with some other effects. Thanks for taking the time out 😌
Not a problem at all! 🥂💯 i enjoy helping others if you have any equestions please dont hesitate!;
