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| 1 | physics = require("physics")
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| 2 | physics.start() | |
| 3 | physics.setGravity(0, 0) | |
| 4 | physics.setDrawMode("hybrid")
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| 5 | ||
| 6 | display.setStatusBar(display.HiddenStatusBar) | |
| 7 | ||
| 8 | local stage = display.getCurrentStage() | |
| 9 | ||
| 10 | local width = 100 | |
| 11 | local height = width*math.sqrt(3)/2 | |
| 12 | local centroidX = height/3 | |
| 13 | local centroidY = width/2 | |
| 14 | local radius = height - centroidX | |
| 15 | local circle = display.newCircle(0, 0, radius) | |
| 16 | circle:setFillColor(0, 0, 0) | |
| 17 | circle.strokeWidth = 1 | |
| 18 | circle.x = stage.width/2 | |
| 19 | circle.y = stage.height/2 | |
| 20 | ||
| 21 | - | local triangle = display.newLine(0, 0, -centroidX,-centroidY) |
| 21 | + | local triObject = display.newGroup() |
| 22 | local triangle = display.newLine(triObject, -centroidX,-centroidY, -centroidX, centroidY) | |
| 23 | - | triangle:append(-centroidX, centroidY) |
| 23 | + | |
| 24 | triangle:append(-centroidX, -centroidY) | |
| 25 | - | triangle.x = circle.x |
| 25 | + | triObject.x = circle.x |
| 26 | - | triangle.y = circle.y |
| 26 | + | triObject.y = circle.y |
| 27 | - | physics.addBody(triangle, { shape = { -centroidX, -centroidY, radius, 0, -centroidX, centroidY} })
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| 27 | + | physics.addBody(triObject, { shape = { -centroidX, -centroidY, radius, 0, -centroidX, centroidY} })
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| 28 | ||
| 29 | - | triangle:applyTorque(5) |
| 29 | + | triObject:applyTorque(5) |
