尼采的遊戲

-- Create an window
Window
{
    title = "Lua Framework",
    x = 30,
    y = 30,
    w = 800,
    h = 600,
    fullscreen = true
}
 
-- Create the camera
Camera
{
    eye = {-5.0,5.0,1.0},
    target = {0.0, 0.0, 0.0},    
}
 
--Create Objects
objects = {}
r = 5.0
n = 10
 
for i=1,n do
    local theta = ((2.0 * math.pi) / n ) * i;
 
    if i < 4 then
        objects[i] = Object
        {
            Movable(),
            Renderable(geom.cube, 2.0)
        }
    elseif i < 7 then
        objects[i] = Object
        {
            Movable(),
            Renderable(geom.sphere, 1.0, 20),
        }
    else
        objects[i] = Object
        {
            Movable(),
            Renderable("teapot.obj")
        }   
    end
 
 
    objects[i].movable.position = 
    { 
        math.sin(theta) * r, 
        1.0, 
        math.cos(theta) * r,         
    }       
    objects[i].movable.orientation = 
    {
        0,
        1,
        0,
        theta + (math.pi * 0.5),
    }
end
 
offset = 0    
 
-- start our main game loop
while true do
    -- tell the system to we are idle, to let system do its work
    idle()
 
    for k, v in pairs(teapots) do    
        local theta = ((math.pi * 2.0) / #objects) * k + offset;
 
        v.movable.position = 
        { 
            math.sin(theta) * r, 
            math.sin(theta) *  math.cos(theta) * r, 
            math.cos(theta) * r,         
        }       
 
        v.movable.orientation = 
        {
            0,
            1,
            0,
            theta + (math.pi * 0.5),
        }
    end
    offset = offset + 0.001
 
    p1 = objects[1].movable.position
    p2 = objects[2].movable.position
 
    -- Print some text on screen
    print(string.format("%f,%f,%f, %f,%f,%f", 
        p1[1], p1[2], p1[3], 
        p2[1], p2[2], p2[3],     
        #objects))    
end