Duplicate of Expected collisions for perfect 32bit crc The answer referenced this article: http://arstechnica.com/civis/viewtopic.php?f=20&t=149670 Found the image below from: http://preshing.com/20110504/hash-collision-probabilities
Yes, you can. Since GUIDs are 128 bits long, there is admittedly a minute possibility of a clash—but the word “minute” is nowhere near strong enough. There are so many GUIDs that if you generate several trillion of them randomly, you’re still more likely to get hit by a meteorite than to have even one … Read more
To detect if 2 circles (respectively balls) are colliding, you’ve to test, if the Euclidean distance between the circles center points is less than the sum of the radii. I recommend to use pygame.math.Vector2 / distance_to() for the computation. In the following the 1 circle is defined by the center point (x1, y1) and the … Read more
A lot will depend on how you are managing your objects, but… import java.awt.Color; import java.awt.Dimension; import java.awt.EventQueue; import java.awt.Graphics; import java.awt.Graphics2D; import java.awt.Rectangle; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.awt.event.KeyEvent; import java.awt.geom.AffineTransform; import java.awt.geom.Area; import java.awt.geom.GeneralPath; import javax.swing.AbstractAction; import javax.swing.ActionMap; import javax.swing.InputMap; import javax.swing.JFrame; import javax.swing.JPanel; import javax.swing.KeyStroke; import javax.swing.Timer; import javax.swing.UIManager; import javax.swing.UnsupportedLookAndFeelException; public … Read more
According to the documentation, the static method UUID.randomUUID() generates a type 4 UUID. This means that six bits are used for some type information and the remaining 122 bits are assigned randomly. The six non-random bits are distributed with four in the most significant half of the UUID and two in the least significant half. … Read more
The mask for the Terrain is never set. Crate a proper Terrain mask: class Terrain(object): def __init__(self, x, y): self.x = x self.y = y maskSurf = pg.Surface((display_width, display_height)).convert_alpha() maskSurf.fill(0) pg.draw.rect(maskSurf, (160, 160, 160), (self.x, self.y, display_width, 500), 0) self.mask = pg.mask.from_surface(maskSurf) print(self.mask.count()) # […] When using pygame.mask.Mask.overlap(), then you’ve to check the overlapping of … Read more
At least in the case of static libraries you can work around it quite conveniently. Consider those headers of libraries foo and bar. For the sake of this tutorial I’ll also give you the source files examples/ex01/foo.h int spam(void); double eggs(void); examples/ex01/foo.c (this may be opaque/not available) int the_spams; double the_eggs; int spam() { return … Read more
..there will be complex corners and not everything will be rectangle. This could be achieved by drawing and dealing with Shape and Area instances. E.G. Yellow is a little animated ‘player’. The bounds of the image represent walls that contain the path of the player (it bounces off them). Obstacles are painted green when not … Read more
This wild beast of human imagination delete ship1, ship2; deletes ship2, but doesn’t delete ship1. Comma here is treated as sequence (comma) operator, and result of such expression is result of last sub-expression. Your function always returns 1. You probably meant something like this int shipdetcol(spaceship &ship1, spaceship &ship2, float colrange) { return colrange > … Read more