rouge = Color.new(255, 0, 0)
bleu = Color.new(0, 0, 255)
vert = Color.new(104, 164, 138)
blanc = Color.new(255, 255, 255)

texture = Image.load("./texture.png")

PtCameraX = 6
PtCameraY = 0
PtCameraZ = 10
PtViewCameraX = 6
PtViewCameraY = 0
PtViewCameraZ = 0
X = 0
Y = 0
Z = 0

A = {0.25, 0, blanc, 0, -3, -3}
B = {0.75, 0, blanc, 12, -3, -3}
C = {0.25, 0.25, blanc, 0, 3, -3}
D = {0.75, 0.25, blanc, 12, 3, -3}
E = {0.25, 0.75, blanc, 0, -3, 3}
F = {0.75, 0.75, blanc, 12, -3, 3}
G = {0.25, 0.50, blanc, 0, 3, 3}
H = {0.75, 0.50, blanc, 12, 3, 3}
I = {0.25, 1, blanc, 0, -3, -3}
J = {0.75, 1, blanc, 12, -3, -3}

pave = {
               A, D, B,
               A, C, D,

               A, B, F,
               A, F, E,

               A, G, C,
               A, E, G,

               F, H, D,
               F, D, B,

               F, E, G,
               F, G, H,

               C, D, H,
               C, H, G,

               E, I, F,
               I, J, F,


               B, D, A,
               D, C, A,

               F, B, A,
               E, F, A,

               C, G, A,
               G, E, A,

               D, H, F,
               B, D, F,

               G, E, F,
               H, G, F,

               H, D, C,
               G, H, C,

               F, I, E,
               F, J, I,

           }

while true do
    Gu.start3d()

    Gu.clearDepth(0);
    Gu.clear(Gu.COLOR_BUFFER_BIT+Gu.DEPTH_BUFFER_BIT)
    Gu.enable(Gu.BLEND)
    Gu.blendFunc(Gu.ADD, Gu.SRC_ALPHA, Gu.ONE_MINUS_SRC_ALPHA, 0, 0)

    Gu.enable(Gu.TEXTURE_2D)
    Gu.texImage(texture)
    Gu.texFunc(Gu.TFX_MODULATE, Gu.TCC_RGBA)
    Gu.texScale(1, 1)
    Gu.texOffset(0, 0)
    Gu.texFilter(Gu.LINEAR, Gu.LINEAR)

    Gum.matrixMode(Gu.PROJECTION)
    Gum.loadIdentity()
    Gum.perspective(90, 16/9, 0.5, 1000)

    Gum.matrixMode(Gu.VIEW)
    Gum.loadIdentity()
    Gum.lookAt(PtCameraX, PtCameraY, PtCameraZ, PtViewCameraX, PtViewCameraY, PtViewCameraZ, 0, 1, 0)

    Gum.matrixMode(Gu.MODEL)
    Gum.loadIdentity()

    Gum.rotateXYZ(X, Y, Z)

    Gum.drawArray(Gu.TRIANGLES,Gu.TEXTURE_32BITF+Gu.COLOR_8888+Gu.VERTEX_32BITF+Gu.TRANSFORM_3D, pave)

    Gu.end3d()

    if Controls.read():up() then
        X = X + 0.1
    elseif Controls.read():down() then
        X = X - 0.1
    elseif Controls.read():cross() then
        PtCameraZ = PtCameraZ - 0.1
    end

    screen:print(5, 5, "X" ..X, blanc)
    screen:print(15, 15, "Y" ..Y, blanc)
    screen:print(25, 25, "Z" ..Z, blanc)

    screen.waitVblankStart()
    screen.flip()
end