mirror of
https://github.com/irmen/prog8.git
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cube3d non float
This commit is contained in:
Irmen de Jong
parent
4f213191dc
commit
cca94d41bc
@ -5,6 +5,7 @@
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const uword width = 40
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const uword height = 25
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const float height_f = height
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; vertices
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byte[8] xcoor = [ -50, -50, -50, -50, 50, 50, 50, 50 ]
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@ -12,9 +13,9 @@
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byte[8] zcoor = [ -50, 50, -50, 50, -50, 50, -50, 50 ]
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; storage for rotated coordinates
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float[len(xcoor)] rotatedx=0.0
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float[len(ycoor)] rotatedy=0.0
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float[len(zcoor)] rotatedz=-1.0
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word[len(xcoor)] rotatedx=0
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word[len(ycoor)] rotatedy=0
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word[len(zcoor)] rotatedz=-1
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sub start() {
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uword anglex
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@ -34,63 +35,108 @@
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; rotate around origin (0,0,0)
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; set up the 3d rotation matrix values
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float cosa = cos8(ax) as float / 128.0
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float sina = sin8(ax) as float / 128.0
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float cosb = cos8(ay) as float / 128.0
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float sinb = sin8(ay) as float / 128.0
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float cosc = cos8(az) as float / 128.0
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float sinc = sin8(az) as float / 128.0
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word wcosa = cos8(ax) as word
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word wsina = sin8(ax) as word
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word wcosb = cos8(ay) as word
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word wsinb = sin8(ay) as word
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word wcosc = cos8(az) as word
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word wsinc = sin8(az) as word
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float cosa_sinb = cosa*sinb
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float sina_sinb = sina*sinb
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float Axx = cosa*cosb
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float Axy = cosa_sinb*sinc - sina*cosc
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float Axz = cosa_sinb*cosc + sina*sinc
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float Ayx = sina*cosb
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float Ayy = sina_sinb*sinc + cosa*cosc
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float Ayz = sina_sinb*cosc - cosa*sinc
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float Azx = -sinb
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float Azy = cosb*sinc
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float Azz = cosb*cosc
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word wcosa_sinb = wcosa*wsinb
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lsr(wcosa_sinb)
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lsr(wcosa_sinb)
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lsr(wcosa_sinb)
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lsr(wcosa_sinb)
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lsr(wcosa_sinb)
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lsr(wcosa_sinb)
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lsr(wcosa_sinb) ; / 128
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word wsina_sinb = wsina*wsinb
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lsr(wsina_sinb)
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lsr(wsina_sinb)
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lsr(wsina_sinb)
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lsr(wsina_sinb)
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lsr(wsina_sinb)
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lsr(wsina_sinb)
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lsr(wsina_sinb) ; / 128
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float cosa_sinb = wcosa_sinb as float / 128.0
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float sina_sinb = wsina_sinb as float / 128.0
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float Axx = wcosa*wcosb as float / 16384.0
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float Axy = cosa_sinb*(wsinc as float / 128.0) - (wsina*wcosc as float / 16384.0)
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float Axz = cosa_sinb*(wcosc as float / 128.0) + (wsina*wsinc as float / 16384.0)
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float Ayx = wsina*wcosb as float / 16384.0
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float Ayy = sina_sinb*(wsinc as float / 128.0) + (wcosa*wcosc as float / 16384.0)
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float Ayz = sina_sinb*(wcosc as float / 128.0) - (wcosa*wsinc as float / 16384.0)
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float Azx = -wsinb as float / 128.0
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float Azy = wcosb*wsinc as float / 16384.0
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float Azz = wcosb*wcosc as float / 16384.0
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word wAxx = Axx * 128.0 as word
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word wAxy = Axy * 128.0 as word
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word wAxz = Axz * 128.0 as word
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word wAyx = Ayx * 128.0 as word
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word wAyy = Ayy * 128.0 as word
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word wAyz = Ayz * 128.0 as word
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word wAzx = Azx * 128.0 as word
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word wAzy = Azy * 128.0 as word
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word wAzz = Azz * 128.0 as word
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for ubyte i in 0 to len(xcoor)-1 {
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float xc = xcoor[i] as float
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float yc = ycoor[i] as float
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float zc = zcoor[i] as float
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rotatedx[i] = Axx*xc + Axy*yc + Axz*zc
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rotatedy[i] = Ayx*xc + Ayy*yc + Ayz*zc
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rotatedz[i] = Azx*xc + Azy*yc + Azz*zc
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word xc = xcoor[i] as word
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word yc = ycoor[i] as word
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word zc = zcoor[i] as word
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word zz = wAxx*xc + wAxy*yc + wAxz*zc
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lsr(zz)
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lsr(zz)
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lsr(zz)
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lsr(zz)
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lsr(zz)
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lsr(zz)
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lsr(zz) ; /128
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rotatedx[i] = zz
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zz=wAyx*xc + wAyy*yc + wAyz*zc
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lsr(zz)
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lsr(zz)
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lsr(zz)
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lsr(zz)
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lsr(zz)
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lsr(zz)
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lsr(zz) ; /128
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rotatedy[i] = zz
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zz = wAzx*xc + wAzy*yc + wAzz*zc
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lsr(zz)
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lsr(zz)
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lsr(zz)
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lsr(zz)
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lsr(zz)
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lsr(zz)
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lsr(zz) ; /128
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rotatedz[i] = zz
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}
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}
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sub draw_edges() {
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sub toscreenx(float x, float z) -> byte {
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return x/(250.0+z) * (height as float) as byte + width // 2
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}
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sub toscreeny(float y, float z) -> byte {
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return y/(250.0+z) * (height as float) as byte + height // 2
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}
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; plot the points of the 3d cube
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; first the points on the back, then the points on the front (painter algorithm)
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for ubyte i in 0 to len(xcoor)-1 {
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float rz = rotatedz[i]
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if rz >= 0.1 {
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ubyte sx = toscreenx(rotatedx[i], rz) as ubyte
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ubyte sy = toscreeny(rotatedy[i], rz) as ubyte
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c64scr.setchrclr(sx, sy, 46, i+2)
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word rz = rotatedz[i]
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if rz >= 10 {
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float persp = (rz as float + 250.0)/height_f
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byte sx = rotatedx[i] as float / persp as byte + width//2
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byte sy = rotatedy[i] as float / persp as byte + height//2
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c64scr.setchrclr(sx as ubyte, sy as ubyte, 46, i+2)
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}
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}
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for ubyte i in 0 to len(xcoor)-1 {
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float rz = rotatedz[i]
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if rz < 0.1 {
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ubyte sx = toscreenx(rotatedx[i], rz) as ubyte
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ubyte sy = toscreeny(rotatedy[i], rz) as ubyte
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c64scr.setchrclr(sx, sy, 81, i+2)
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word rz = rotatedz[i]
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if rz < 10 {
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float persp = (rz as float + 250.0)/height_f
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byte sx = rotatedx[i] as float / persp as byte + width//2
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byte sy = rotatedy[i] as float / persp as byte + height//2
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c64scr.setchrclr(sx as ubyte, sy as ubyte, 81, i+2)
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}
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}
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}
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@ -1,16 +1,148 @@
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%import c64utils
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%import c64flt
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~ main {
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word[1] rotatedx
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const uword width = 40
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const uword height = 25
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; vertices
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byte[8] xcoor = [ -50, -50, -50, -50, 50, 50, 50, 50 ]
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byte[8] ycoor = [ -50, -50, 50, 50, -50, -50, 50, 50 ]
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byte[8] zcoor = [ -50, 50, -50, 50, -50, 50, -50, 50 ]
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; storage for rotated coordinates
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word[len(xcoor)] rotatedx=0
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word[len(ycoor)] rotatedy=0
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word[len(zcoor)] rotatedz=-1
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sub start() {
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word xc = 2
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rpt:
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word w = 2*xc
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rotatedx[0] = w ; @ok!
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rotatedx[0] = 2*xc ; @todo wrong code generated? crash!
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c64.CHROUT('.')
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goto rpt
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uword anglex
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uword angley
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uword anglez
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while(true) {
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rotate_vertices(msb(anglex), msb(angley), msb(anglez))
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c64.CLEARSCR()
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draw_edges()
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anglex+=1000
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angley+=333
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anglez+=807
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}
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}
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sub rotate_vertices(ubyte ax, ubyte ay, ubyte az) {
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; rotate around origin (0,0,0)
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; set up the 3d rotation matrix values
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word wcosa = cos8(ax) as word
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word wsina = sin8(ax) as word
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word wcosb = cos8(ay) as word
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word wsinb = sin8(ay) as word
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word wcosc = cos8(az) as word
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word wsinc = sin8(az) as word
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word wcosa_sinb = wcosa*wsinb
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lsr(wcosa_sinb)
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lsr(wcosa_sinb)
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lsr(wcosa_sinb)
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lsr(wcosa_sinb)
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lsr(wcosa_sinb)
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lsr(wcosa_sinb)
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lsr(wcosa_sinb) ; / 128
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word wsina_sinb = wsina*wsinb
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lsr(wsina_sinb)
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lsr(wsina_sinb)
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lsr(wsina_sinb)
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lsr(wsina_sinb)
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lsr(wsina_sinb)
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lsr(wsina_sinb)
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lsr(wsina_sinb) ; / 128
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float cosa_sinb = wcosa_sinb as float / 128.0
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float sina_sinb = wsina_sinb as float / 128.0
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float Axx = wcosa*wcosb as float / 16384.0
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float Axy = cosa_sinb*(wsinc as float / 128.0) - (wsina*wcosc as float / 16384.0)
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float Axz = cosa_sinb*(wcosc as float / 128.0) + (wsina*wsinc as float / 16384.0)
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float Ayx = wsina*wcosb as float / 16384.0
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float Ayy = sina_sinb*(wsinc as float / 128.0) + (wcosa*wcosc as float / 16384.0)
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float Ayz = sina_sinb*(wcosc as float / 128.0) - (wcosa*wsinc as float / 16384.0)
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float Azx = -wsinb as float / 128.0
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float Azy = wcosb*wsinc as float / 16384.0
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float Azz = wcosb*wcosc as float / 16384.0
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word wAxx = Axx * 128.0 as word
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word wAxy = Axy * 128.0 as word
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word wAxz = Axz * 128.0 as word
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word wAyx = Ayx * 128.0 as word
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word wAyy = Ayy * 128.0 as word
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word wAyz = Ayz * 128.0 as word
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word wAzx = Azx * 128.0 as word
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word wAzy = Azy * 128.0 as word
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word wAzz = Azz * 128.0 as word
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for ubyte i in 0 to len(xcoor)-1 {
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word xc = xcoor[i] as word
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word yc = ycoor[i] as word
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word zc = zcoor[i] as word
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word zz = wAxx*xc + wAxy*yc + wAxz*zc
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lsr(zz)
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lsr(zz)
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lsr(zz)
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lsr(zz)
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lsr(zz)
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lsr(zz)
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lsr(zz) ; /128
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rotatedx[i] = zz
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zz=wAyx*xc + wAyy*yc + wAyz*zc
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lsr(zz)
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lsr(zz)
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lsr(zz)
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lsr(zz)
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lsr(zz)
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lsr(zz)
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lsr(zz) ; /128
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rotatedy[i] = zz
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zz = wAzx*xc + wAzy*yc + wAzz*zc
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lsr(zz)
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lsr(zz)
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lsr(zz)
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lsr(zz)
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lsr(zz)
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lsr(zz)
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lsr(zz) ; /128
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rotatedz[i] = zz
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}
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}
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sub draw_edges() {
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sub toscreenx(float x, float z) -> byte {
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return x/(250.0+z) * (height as float) as byte + width // 2
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}
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sub toscreeny(float y, float z) -> byte {
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return y/(250.0+z) * (height as float) as byte + height // 2
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}
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; plot the points of the 3d cube
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; first the points on the back, then the points on the front (painter algorithm)
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for ubyte i in 0 to len(xcoor)-1 {
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word rz = rotatedz[i]
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if rz >= 10 {
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ubyte sx = toscreenx(rotatedx[i] as float, rz as float) as ubyte ; @todo crash when not using 'as float' for the param!
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ubyte sy = toscreeny(rotatedy[i] as float, rz as float) as ubyte ; @todo crash when not using 'as float' for the param!
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c64scr.setchrclr(sx, sy, 46, i+2)
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}
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}
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for ubyte i in 0 to len(xcoor)-1 {
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word rz = rotatedz[i]
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if rz < 10 {
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ubyte sx = toscreenx(rotatedx[i] as float, rz as float) as ubyte ; @todo crash when not using 'as float' for the param!
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ubyte sy = toscreeny(rotatedy[i] as float, rz as float) as ubyte ; @todo crash when not using 'as float' for the param!
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c64scr.setchrclr(sx, sy, 81, i+2)
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}
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}
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}
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}
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@ -2309,7 +2309,7 @@ class AsmGen(val options: CompilationOptions, val program: IntermediateProgram,
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sta ${C64Zeropage.SCRATCH_B1}
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lda #<${segment[2].callLabel}
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ldy #>${segment[2].callLabel}
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jsr prog8_lib.ub2float
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jsr c64flt.ub2float
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"""
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},
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// floatvar = uwordvar
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@ -2321,7 +2321,7 @@ class AsmGen(val options: CompilationOptions, val program: IntermediateProgram,
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sta ${C64Zeropage.SCRATCH_W1+1}
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lda #<${segment[2].callLabel}
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ldy #>${segment[2].callLabel}
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jsr prog8_lib.uw2float
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jsr c64flt.uw2float
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"""
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},
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// floatvar = bytevar
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@ -2337,7 +2337,7 @@ class AsmGen(val options: CompilationOptions, val program: IntermediateProgram,
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sta ${C64Zeropage.SCRATCH_B1}
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lda #<${segment[2].callLabel}
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ldy #>${segment[2].callLabel}
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jsr prog8_lib.b2float
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jsr c64flt.b2float
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"""
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},
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// floatvar = wordvar
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@ -2349,7 +2349,7 @@ class AsmGen(val options: CompilationOptions, val program: IntermediateProgram,
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sta ${C64Zeropage.SCRATCH_W1+1}
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lda #<${segment[2].callLabel}
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ldy #>${segment[2].callLabel}
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jsr prog8_lib.w2float
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jsr c64flt.w2float
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"""
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},
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// floatvar = float value
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@ -2396,7 +2396,7 @@ class AsmGen(val options: CompilationOptions, val program: IntermediateProgram,
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sta ${C64Zeropage.SCRATCH_B1}
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lda #<${segment[2].callLabel}
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ldy #>${segment[2].callLabel}
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jsr prog8_lib.b2float
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jsr c64flt.b2float
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"""
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},
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// floatvar = mem ubyte
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@ -2406,7 +2406,7 @@ class AsmGen(val options: CompilationOptions, val program: IntermediateProgram,
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sta ${C64Zeropage.SCRATCH_B1}
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lda #<${segment[2].callLabel}
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ldy #>${segment[2].callLabel}
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jsr prog8_lib.ub2float
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jsr c64flt.ub2float
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"""
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},
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// floatvar = mem word
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@ -2418,7 +2418,7 @@ class AsmGen(val options: CompilationOptions, val program: IntermediateProgram,
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sta ${C64Zeropage.SCRATCH_W1+1}
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lda #<${segment[2].callLabel}
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ldy #>${segment[2].callLabel}
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jsr prog8_lib.w2float
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jsr c64flt.w2float
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"""
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},
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// floatvar = mem uword
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@ -2430,7 +2430,7 @@ class AsmGen(val options: CompilationOptions, val program: IntermediateProgram,
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sta ${C64Zeropage.SCRATCH_W1+1}
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lda #<${segment[2].callLabel}
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ldy #>${segment[2].callLabel}
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jsr prog8_lib.uw2float
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jsr c64flt.uw2float
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"""
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},
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@ -2442,7 +2442,7 @@ class AsmGen(val options: CompilationOptions, val program: IntermediateProgram,
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sta ${C64Zeropage.SCRATCH_B1}
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lda #<${segment[3].callLabel}
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ldy #>${segment[3].callLabel}
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jsr prog8_lib.b2float
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jsr c64flt.b2float
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"""
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},
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// floatvar = ubytearray[index]
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@ -2453,7 +2453,7 @@ class AsmGen(val options: CompilationOptions, val program: IntermediateProgram,
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sta ${C64Zeropage.SCRATCH_B1}
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lda #<${segment[3].callLabel}
|
||||
ldy #>${segment[3].callLabel}
|
||||
jsr prog8_lib.ub2float
|
||||
jsr c64flt.ub2float
|
||||
"""
|
||||
},
|
||||
// floatvar = wordarray[index]
|
||||
@ -2466,7 +2466,7 @@ class AsmGen(val options: CompilationOptions, val program: IntermediateProgram,
|
||||
sty ${C64Zeropage.SCRATCH_W1+1}
|
||||
lda #<${segment[3].callLabel}
|
||||
ldy #>${segment[3].callLabel}
|
||||
jsr prog8_lib.w2float
|
||||
jsr c64flt.w2float
|
||||
"""
|
||||
},
|
||||
// floatvar = uwordarray[index]
|
||||
@ -2479,7 +2479,7 @@ class AsmGen(val options: CompilationOptions, val program: IntermediateProgram,
|
||||
sty ${C64Zeropage.SCRATCH_W1+1}
|
||||
lda #<${segment[3].callLabel}
|
||||
ldy #>${segment[3].callLabel}
|
||||
jsr prog8_lib.uw2float
|
||||
jsr c64flt.uw2float
|
||||
"""
|
||||
},
|
||||
// floatvar = floatarray[index]
|
||||
@ -2534,7 +2534,7 @@ class AsmGen(val options: CompilationOptions, val program: IntermediateProgram,
|
||||
sta ${C64Zeropage.SCRATCH_B1}
|
||||
lda #<${hexVal(segment[2])}
|
||||
ldy #>${hexVal(segment[2])}
|
||||
jsr prog8_lib.ub2float
|
||||
jsr c64flt.ub2float
|
||||
"""
|
||||
},
|
||||
// memfloat = uwordvar
|
||||
@ -2546,7 +2546,7 @@ class AsmGen(val options: CompilationOptions, val program: IntermediateProgram,
|
||||
sta ${C64Zeropage.SCRATCH_W1+1}
|
||||
lda #<${hexVal(segment[2])}
|
||||
ldy #>${hexVal(segment[2])}
|
||||
jsr prog8_lib.uw2float
|
||||
jsr c64flt.uw2float
|
||||
"""
|
||||
},
|
||||
// memfloat = bytevar
|
||||
@ -2562,7 +2562,7 @@ class AsmGen(val options: CompilationOptions, val program: IntermediateProgram,
|
||||
sta ${C64Zeropage.SCRATCH_B1}
|
||||
lda #<${hexVal(segment[2])}
|
||||
ldy #>${hexVal(segment[2])}
|
||||
jsr prog8_lib.b2float
|
||||
jsr c64flt.b2float
|
||||
"""
|
||||
},
|
||||
// memfloat = wordvar
|
||||
@ -2574,7 +2574,7 @@ class AsmGen(val options: CompilationOptions, val program: IntermediateProgram,
|
||||
sta ${C64Zeropage.SCRATCH_W1+1}
|
||||
lda #<${hexVal(segment[2])}
|
||||
ldy #>${hexVal(segment[2])}
|
||||
jsr prog8_lib.w2float
|
||||
jsr c64flt.w2float
|
||||
"""
|
||||
},
|
||||
// memfloat = mem byte
|
||||
@ -2584,7 +2584,7 @@ class AsmGen(val options: CompilationOptions, val program: IntermediateProgram,
|
||||
sta ${C64Zeropage.SCRATCH_B1}
|
||||
lda #<${hexVal(segment[2])}
|
||||
ldy #>${hexVal(segment[2])}
|
||||
jsr prog8_lib.b2float
|
||||
jsr c64flt.b2float
|
||||
"""
|
||||
},
|
||||
// memfloat = mem ubyte
|
||||
@ -2594,7 +2594,7 @@ class AsmGen(val options: CompilationOptions, val program: IntermediateProgram,
|
||||
sta ${C64Zeropage.SCRATCH_B1}
|
||||
lda #<${hexVal(segment[2])}
|
||||
ldy #>${hexVal(segment[2])}
|
||||
jsr prog8_lib.ub2float
|
||||
jsr c64flt.ub2float
|
||||
"""
|
||||
},
|
||||
// memfloat = mem word
|
||||
@ -2606,7 +2606,7 @@ class AsmGen(val options: CompilationOptions, val program: IntermediateProgram,
|
||||
sta ${C64Zeropage.SCRATCH_W1+1}
|
||||
lda #<${hexVal(segment[2])}
|
||||
ldy #>${hexVal(segment[2])}
|
||||
jsr prog8_lib.w2float
|
||||
jsr c64flt.w2float
|
||||
"""
|
||||
},
|
||||
// memfloat = mem uword
|
||||
@ -2618,7 +2618,7 @@ class AsmGen(val options: CompilationOptions, val program: IntermediateProgram,
|
||||
sta ${C64Zeropage.SCRATCH_W1+1}
|
||||
lda #<${hexVal(segment[2])}
|
||||
ldy #>${hexVal(segment[2])}
|
||||
jsr prog8_lib.uw2float
|
||||
jsr c64flt.uw2float
|
||||
"""
|
||||
},
|
||||
// memfloat = mem float
|
||||
@ -2641,7 +2641,7 @@ class AsmGen(val options: CompilationOptions, val program: IntermediateProgram,
|
||||
sta ${C64Zeropage.SCRATCH_B1}
|
||||
lda #<${hexVal(segment[3])}
|
||||
ldy #>${hexVal(segment[3])}
|
||||
jsr prog8_lib.b2float
|
||||
jsr c64flt.b2float
|
||||
"""
|
||||
},
|
||||
// memfloat = ubytearray[index]
|
||||
@ -2652,7 +2652,7 @@ class AsmGen(val options: CompilationOptions, val program: IntermediateProgram,
|
||||
sta ${C64Zeropage.SCRATCH_B1}
|
||||
lda #<${hexVal(segment[3])}
|
||||
ldy #>${hexVal(segment[3])}
|
||||
jsr prog8_lib.ub2float
|
||||
jsr c64flt.ub2float
|
||||
"""
|
||||
},
|
||||
// memfloat = wordarray[index]
|
||||
@ -2665,7 +2665,7 @@ class AsmGen(val options: CompilationOptions, val program: IntermediateProgram,
|
||||
sty ${C64Zeropage.SCRATCH_W1+1}
|
||||
lda #<${hexVal(segment[3])}
|
||||
ldy #>${hexVal(segment[3])}
|
||||
jsr prog8_lib.w2float
|
||||
jsr c64flt.w2float
|
||||
"""
|
||||
},
|
||||
// memfloat = uwordarray[index]
|
||||
@ -2678,7 +2678,7 @@ class AsmGen(val options: CompilationOptions, val program: IntermediateProgram,
|
||||
sty ${C64Zeropage.SCRATCH_W1+1}
|
||||
lda #<${hexVal(segment[3])}
|
||||
ldy #>${hexVal(segment[3])}
|
||||
jsr prog8_lib.uw2float
|
||||
jsr c64flt.uw2float
|
||||
"""
|
||||
},
|
||||
// memfloat = floatarray[index]
|
||||
|
||||
Loading…
Reference in New Issue
Block a user