Using bitmaps to handle collision with a sword?

[Yoric]

So, I’m working on an isometric hack’n slash and I want swords to hurt enenies.

As far as I understand, this means that I need to

• create a Zone that overlaps with the character’s sword;
• for each of the 8 directions of the character
  • for each hitting frame in each of these directions
    • activate my sword Zone
    • adjust x, y, width, height and rotation of sword Zone to match position of sword in the sprite
• for each non-hitting frame
  • deactivate my sword Zone

Now, I haven’t written games in a long time, but I seem to remember a (simpler?) trick that involved:

• having a second sprite sheet with the same frames as the character’s animations but in which only collision zones (so, basically the outline of the rectangle) were drawn;
• using this sprite sheet for collision detection instead of bounding boxes.

Is this possible with Phaser? Are there drawbacks?

[samme]

I think so, see something similar in

Phaser Coding Tips 1&2 Revisited: Pixel based Physics

Of all my posts here, my post here generated the most response - I guess I am not the only one interested in this esoteric field of manipulating the canvas at pixel level… [image] I have been playing around with the canvas texture class some more and have come up with this simple demo of balls bouncing on destructible (i.e. non-flat, non-axis aligned) terrain. To get the ball bouncing off angled terrains, I have adopted a very simple algorithm to calculate the surface/collision normal, which i…

[Yoric]

Yep, definitely looks related. I don’t quite see how to go from one to the other yet, but I’ll get there

[samme]

I’m getting somewhere with this

[samme]