Student Portal Britannica is the ultimate student resource for key school subjects like history, government, literature, and more. This Time in History In these videos, find out what happened this month (or any month!) in history. #WTFact Videos In #WTFact Britannica shares some of the most bizarre facts we can find. Demystified Videos In Demystified, Britannica has all the answers to your burning questions. Britannica Classics Check out these retro videos from Encyclopedia Britannica’s archives. Britannica Explains In these videos, Britannica explains a variety of topics and answers frequently asked questions. Return Bullet(pos, pos, round(direction.x), round(direction. Method Shoot: class Player(py.sprite.Sprite): Since the components are floating point values, they are round to integral values: return Bullet(pos, pos, round(direction.x), round(direction.y)) Now the x and y component of the vector contain the x and y component of the speed. In the following I use 2, because it provides the handy method scale_to_length, that scales a vector to a specified Euclidean length: direction = py.math.Vector2(vx, vy) Of course this vector is far to long, if you would use it for the direction ( Xspeed, Yspeed) directly, then the bullet would step to the mouse cursor in one turn. If the mouse position and the bullet position are equal, that does not make any sense, thus the bullet is skipped if vx = 0 and vy = 0: Get the position of the player and the mouse cursor and compute the x and y distance ( Vector ): pos = Return Bullet(,, self.lastX, self.lastY)Īlternatively it is also possible to set the speed dependent on the direction to the mouse cursor. Set the attributes when the bullet spawns class Player(py.sprite.Sprite): If HEIGHT or WIDTH or < 0:Īdd 2 attributes self.lastX and self.lastY to the class Player and change the attributes when the player changes the direction: class Player(py.sprite.Sprite):Īdd an argument Xspeed ans Yspeed to the class Bullet class Bullet(py.sprite.Sprite):ĭef _init_(self, x, y, Xspeed, Yspeed): 
# line below allow the sprite to wrap around the screen # line below allow for key press to equate to move of sprite Self.image = py.Surface((40, 40), py.SRCALPHA) # updates the position of of mouse and rotates it towards the mouse position Hits = py.sprite.spritecollide(player, NPCs, True) # check if there a collision between the player and NPC Hits = py.oupcollide(NPCs, bullets, True, True) # check if there a collision between the bullet and NPC For diagonal movement of the bullet, I have no clue.Ĭode below (split into two parts/file Main.py and PlayerSprite.py): Main: py.init()
Stencyl fire bullet direction of bullet how to#
I thought I could somehow use the cursor and player tracking that's in this game for the visuals but I don't know how to make that a one-time thing instead of a constant.
I have some idea of what to but I just don't know how to do it.
I don't know how I'll make the bullets fire off in the direction the player is facing. I was just getting some help to figure out how to get my player fire bullets when I realized that they only go (kinda expected this but however as only had y value for movement).
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