Author: Murii

DO NOT call this

DO NOT call this

function Collision:setGravity(value)

set the gravity for the hole world

function Collision:setMaxVelocity(value)

set the max velocity an object can reach

function Collision:clamp(n, low, high)

clamps number between two values

function Collision:clampVec(x, y, len)

clamps vector size if above a given length

function Collision:findShape(s)

returns shape index and its list

function Collision:removeShape(s)

removes shape from its list

function Collision:getBounds(s)

returns center position and half width/height extents for any shape

function Collision.getBounds(s)

returns center position and half width/height extents for any shape

function Collision.repartition(s)

repartition moved or modified shapes

function Collision:testPoint(s, x, y, line)

tests a point versus any shape

function Collision:queryPoint(result, x, y)

test a point versus all shapes

function Collision:queryShape(result, a, dt)

test a shape versus all shapes

function Collision.addRectShape(list, x, y, w, h)

rects have a center position and half-width/height extents

function Collision.addCircleShape(list, x, y, r)

circles have a center position and radius

function Collision.addLineShape(list, x, y, x2, y2)

line shapes have a starting and an ending point

function testRectRect(a, b, dt)

tests two rectangles for intersection

function testRectCircle(a, b, dt)

tests rectangle versus circle

tests rectangle versus line segment

function testCircleCircle(a, b, dt)

tests two circles

function testCircleLine(a, b, dt)

tests circle versus a line segment

function Collision:testShapes(a, b, dt)

returns normalized separation vector and penetration

function Collision:moveShape(a, dx, dy)

moves shape by given amount without checking for collisions

function Collision:positionShape(a, x, y)

repositions the shape to given coordinates

function Collision:getVelocity(a)

returns the velocity of shape

function Collision:setVelocity(a, xv, yv)

assigns velocity to shape

function Collision:update(delta)

updates the simulation

function Collision:collision(a, b)

check and report collisions

function Collision:solveCollision(a, b, nx, ny, pen)

resolves collisions