So far in the samples of varies box2d js implementation I can find only element defined in shapes (ball/box/etc), is there a way to create an element defined by an image, e.g. a boulder?
Share
Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.
Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.
Lost your password? Please enter your email address. You will receive a link and will create a new password via email.
Please briefly explain why you feel this question should be reported.
Please briefly explain why you feel this answer should be reported.
Please briefly explain why you feel this user should be reported.
So far in the samples of varies box2d js implementation I can find only element defined in shapes (ball/box/etc), is there a way to create an element defined by an image, e.g. a boulder?
You can use the
b2PolyDefandb2PolyShapeobjects to create polygons.This documentation is meant for AS3 but it is relatively simple to figure out the JavaScript equivalent.
If you wanted to automate the mapping from an image’s bounding box to the polygon, you could use canvas and
getImageData()to seek through the pixels looking for non transparent (assuming your image has a transparent background). This is probably more effort than it is worth though.Also see Understanding custom polygons in Box2D.