90 lines
1.7 KiB
Plaintext
90 lines
1.7 KiB
Plaintext
_runtimePath_ "../runtime"
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_runtimeStart_ &h26FF
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_arraysStart_ &h26FF
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_codeRomType_ ROMv1
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cls
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y=0 : x=y : i=x : j=i : a=j : pitch=a : yy=pitch
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color1 = &h3F : color2 = &h03 : horizonY = 32
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dim c1(3) = &h3F, &h2A, &h15, &h00
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dim c2(3) = &h03, &h02, &h01, &h00
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fade=0 : cIndex=fade : decay = 54
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' Draw tiles in perspective in screen memory
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for y=119 downto horizonY
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color1 = c1(cIndex) : color2 = c2(cIndex)
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inc fade
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if fade &&= decay
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inc cIndex
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fade = 0
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decay = decay LSR 1
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endif
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yy = y
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gosub calcPitch
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if((400 / (y-horizonY+40)) AND 1) &&= 0
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j = color1 XOR color2
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else
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j = 0
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endif
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i = 80 % pitch
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a = ((y + 8) LSL 8)
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for x=0 to pitch + 159
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if i &= 0
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i = pitch - 1
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else
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i = i - 1
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endif
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if i+i &&>= pitch
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p = color1 XOR j
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else
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p = color2 XOR j
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endif
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poke a+x,p
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next x
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set VIDEO_TOP, y+y
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next y
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set VIDEO_TOP, 0
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x=0 : v=8
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loop: i = x AND 255
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j = 0
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q = &h0100 + 240
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yy = horizonY
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gosub calcPitch
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for y=0 &to pitch
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j = j + i
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next y
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i = i + i
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p = &h0101 + horizonY + horizonY
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wait
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repeat
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poke p, j LSR 8
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j = i + (j AND 255)
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p = p + 4 : until p &&>= q
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gosub get("BUTTON_STATE")
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x = x + v
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goto loop
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254: v = v + 1 : if v &&> 32 then v = 32
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return
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253: v = v - 1 : if v &&< -32 then v = -32
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return
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191: v = 0 : return
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127: v = 0 : return
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calcPitch: pitch = yy + (96 - 120 + 1)
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pitch = (pitch + 1) AND &hfffe
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return |