Making group rotate around their centre

Games
#21

I don’t see any difference in operation, but for the sake of being nice to the physics engine, you can try this instead:

local physics = require("physics")  
physics.start()  
   
--Set Background  
background = display.newRect( 0, 0, display.contentWidth, display.contentHeight )  
background:setFillColor( 255, 255, 255, 255 )  
   
local circle = display.newCircle( 125, 200, 100 )   
circle:setFillColor( 0, 0, 255, 255 )   
physics.addBody( circle, "kinematic")  
   
local block = display.newRect(circle.x,circle.y,50,50)  
block.x = circle.x + 100  
block.y = circle.y  
block.rotation = 45  
block:setFillColor( 0, 0, 0, 255 )   
physics.addBody( block, "dynamic")  
   
myJoint = physics.newJoint( "weld", circle, block, block.x, block.y )  
   
circle.angularVelocity = 10

Note: You will need to add the button yourself, but you can alter the angular properties of the circle to get your desired effect. Also I’ll point out that I changed the circle to “kinematic” instead of “static”, this allows us to apply forces without the circle being affected by gravity and collisions. [import]uid: 36054 topic_id: 8040 reply_id: 29753[/import]

#22

Thanks for your help guys.

Got there in the end! Just changed the “static” property to “kinematic” in the old code and… bingo! It worked :smiley:

Blasterv, the above code is quite interesting so I may try and fit it in my game somehow!
Many thanks again guys. [import]uid: 40538 topic_id: 8040 reply_id: 29875[/import]