Hi guys. This is only my 3rd day of using Corona and love it, however I've run into an issue.
I'm trying to create a complex physics object, however, for some reason whenever the player walks over it, about half way through they fall through..
Now I'm thinking its due to how I entered the coordinates (clockwise notation), but I've tried changing them around and doing them backwards but no luck. Its just a rectangle, so, it shouldn't have any concave issues. Any tips?
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | --add the ground local ground1 = display.newImage("ground1.png") game:insert(ground1) local physics_body = {} physics_body["ground1"] = { { density = 5.0, friction = 0.5, bounce = 0.3, shape = {400,200, 400,220, 0,220, 0,200} } } physics.addBody(game, "static", unpack(physics_body["ground1"])) |
First, turn on physics debug:
physics.setDrawMode( "debug" )
Then, I believe you need to define your shape boundry "from the centroid of the object".
Oh, yes I have all that.
1 2 3 4 5 | -- Activate physics engine local physics = require("physics") physics.start() physics.setGravity(0.3,9.8) physics.setDrawMode("hybrid") |
Correct. This is one of the early issues I ran into. Box2d engine evidentally assumes all objects have a center reference point. So a box 100 width and height will be defined as -50, -50 and 50, 50. Give that a go.
views:1323 update：2011/10/4 17:12:07