java - libgdx box2d, texture/body not in correct place when created at an angle -


when create body , draw texture body is, if angle set 0.0f, appears expected. upright , @ centre x , y of player (the black circle). when angle changes, x , y of texture appear off. in fact tend off screen can see them visibly fall gravity.

here's method create new bullet:

private void shoot(final float delta) {     gametime += delta;     final float timesincelastshot = gametime - lastbulletshottime;     //5 bullets second, kerpow     if (timesincelastshot > 0.2f) {         lastbulletshottime = gametime;         shot.play();          final float shotx = player.getx() + ((player.getwidth() / 2) - (bullettexture.getwidth() / 2));         final float shoty = player.gety() + ((player.getheight() / 2) - (bullettexture.getheight() / 2));          bodydef bodydef = new bodydef();         bodydef.type = bodydef.bodytype.dynamicbody;         bodydef.position.set(shotx, shoty);          body body = world.createbody(bodydef);         float angle = player.getrotation() * mathutils.degreestoradians;         body.settransform(body.getposition().x, body.getposition().y, angle);         system.out.println("angle rad: " + angle);         bullets.add(body);          polygonshape shape = new polygonshape();         shape.setasbox(bullettexture.getwidth() / 2, bullettexture.getheight() / 2);          fixturedef fixturedef = new fixturedef();         fixturedef.shape = shape;         fixturedef.density = 1f;         fixture fixture = body.createfixture(fixturedef);          shape.dispose();     } }

and here's part of render method loop , draw bullets:

for (body bullet : bullets) {             final float x = bullet.getposition().x;             final float y = bullet.getposition().y;             final float originx = x + (bullettexture.getwidth() / 2);             final float originy = y + (bullettexture.getheight() / 2);             final float width = bullettexture.getwidth();             final float height = bullettexture.getheight();             final float scalex = 1.0f;             final float scaley = 1.0f;             final float rotation = bullet.getangle() * mathutils.radianstodegrees;             final int sourcex = 0;             final int sourcey = 0;             final int sourcewidth = bullettexture.gettexturedata().getwidth();             final int sourceheight = bullettexture.gettexturedata().getheight();             final boolean flipx = false;             final boolean flipy = false;              batch.draw(bullettexture,                     x, y,                     originx, originy,                     width, height,                     scalex, scaley,                     rotation,                     sourcex, sourcey,                     sourcewidth, sourceheight,                     flipx, flipy);         }

any tips i'm doing wrong? want bullets start @ centre of player circle, @ correct angle. intend add velocity 'shoot'.

the full code can found here on github https://github.com/samrufflecoles/playercircle/blob/master/core/src/es/rufflecol/sam/playercircle/playercircle.java

i've attached screenshot, has fallen little gravity between shooting , taking this, bottom left bullets appeared in right place initially, while others have fallen off screen (some others 'shot' never visible).

screenshot

my mistake originx , originy. corrected below, works:

final float originx = bullettexture.getwidth() / 2; final float originy = bullettexture.getheight() / 2;

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