objects.lua

objects = {}
objects.images = {}
objects.activeObjects = {}
objects.images.default = love.graphics.newImage("defaultObject.png")
function objects:newActiveObject(x, y, width, height)
    local result = {}
    result.id = "defaultObject"
    result.x = x
    result.y = y
    result.image = self.images.default
    result.width = width --result.image:getWidth() returned nil
    result.height = height --result.image:getHeight() returned nil
    result.left = result.x
    result.right = result.x + width
    result.top = result.y
    result.bottom = result.y + height
    result.collidingObjects = {}
    function result:collidesWith(obj)
        if self.bottom < obj.top then
            return false
        elseif self.top > obj.bottom then
            return false
        elseif self.right < obj.left then
            return false
        elseif self.left > obj.right then
            return false
        else
            return true
        end
    end
    function result:act() end
    function result:create() end
    function result:destroy()
        self.remove = true
    end
    function result:collide(other) end
    return result
end
function objects:drawActiveObjects()
    for k, v in pairs(self.activeObjects) do
        love.graphics.draw(v.image, v.x, v.y)
    end
end
function objects:calculateCollisions()
    for k0, v0 in pairs(self.activeObjects) do
        v0.collidingObjects = {}
        for k1, v1 in pairs(self.activeObjects) do
            if (not k0 == k1) and v0:collidesWith(v1) then
                table.insert(v0.collidingObjects, v1)
            end
        end
    end
    for k0, v0 in pairs(self.activeObjects) do
        for k1, v1 in pairs(v0.collidingObjects) do
            v0:collide(v1)
        end
    end
end
function objects:actObjects()
    for k, v in pairs(self.activeObjects) do
        v:act()
    end
    for k, v in pairs(self.activeObjects) do
        if v.remove then table.remove(self.activeObjects, k) end
    end
end
function objects:addActiveObject(object)
    table.insert(self.activeObjects, object)
    object:create()
end