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When spiders attack

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This commit is contained in:
David Schmenk 2020-01-05 14:43:58 -08:00
parent 1fe6191343
commit 42888ed95a
2 changed files with 55 additions and 26 deletions
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2
src/libsrc/apple/hgrsprite.pla
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@ -129,7 +129,7 @@ export def spriteCompile(w, h, xcenter, ycenter, srcptr)#1
var sprtptr, bytewidth, spritesize, i
sprtptr = heapalloc(t_sprite)
bytewidth = (w + 7) / 7 + 1
bytewidth = (w + 13) / 7
sprtptr->s_pitch = bytewidth
spritesize = bytewidth * h
sprtptr=>s_size = spritesize

79
src/samplesrc/sfm.pla
View File

@ -100,17 +100,18 @@ def moire#0
end
def game(spdrcnt)#0
var[14] xspdr, yspdr, ixspdr, iyspdr, hatch
var xship, xmissle
var xship, xmissle, attack
byte yship, ymissle
byte spdrnum, k, xdelta, ydelta, btn0, btn1
xship = 140
ymissle = 255
xship = 140
ymissle = 255
xspdr[0] = 100
ixspdr[0] = 1
yspdr[0] = 60
iyspdr[0] = -1
hatch[0] = 1
hatch[0] = 1
attack = -1
spdrnum = spdrcnt - 1
for k = 1 to spdrnum
spriteAdd(k + 8, spriteDup(sprtEgg))
@ -123,23 +124,9 @@ def game(spdrcnt)#0
repeat
for k = 0 to spdrnum
if yspdr[k] <> 255
//xspdr[k] = xspdr[k] + ixspdr[k]
if ixspdr[k] > 0
xspdr[k] = xspdr[k] + yspdr[k] / 8
else
xspdr[k] = xspdr[k] - yspdr[k] / 8
fin
if xspdr[k] < -5 or xspdr[k] > 284
ixspdr[k] = -ixspdr[k]
if xspdr[k] < -5
xspdr[k] = -5
else
xspdr[k] = 284
fin
fin
yspdr[k] = yspdr[k] + iyspdr[k]
if yspdr[k] < -5
iyspdr[k] = -iyspdr[k]
iyspdr[k] = 1
if hatch[k]
hatch[k]--
if hatch[k] == 0
@ -147,8 +134,48 @@ def game(spdrcnt)#0
fin
fin
fin
if yspdr[k] > 64
iyspdr[k] = -iyspdr[k]
if yspdr[k] > 64 // Attack or not?
if hatch[k] == 0 and attack < 0
attack = k
iyspdr[k] = 8
fin
if attack == k
if yspdr[k] > 160
iyspdr[k] = -8 // Retreat
fin
if iyspdr[k] > 0 // Attacking
xspdr[k] = xspdr[k] + (xship - xspdr[k]) / 8
else // Retreating
if ixspdr[k] > 0
xspdr[k] = xspdr[k] + (160 - yspdr[k]) / 8
else
xspdr[k] = xspdr[k] - (160 - yspdr[k]) / 8
fin
fin
else
iyspdr[k] = -1
fin
else
if attack == k
attack = -1 // Stop attack
iyspdr[k] = -1
fin
fin
if attack <> k
if ixspdr[k] > 0
xspdr[k] = xspdr[k] + yspdr[k] / 8
else
xspdr[k] = xspdr[k] - yspdr[k] / 8
fin
if xspdr[k] < -5 or xspdr[k] > 284
if xspdr[k] < -5
xspdr[k] = -5
ixspdr[k] = 1
else
xspdr[k] = 284
ixspdr[k] = -1
fin
fin
fin
spritePosIndex(xspdr[k], yspdr[k], k + 8)
fin
@ -160,7 +187,7 @@ def game(spdrcnt)#0
if btn0 and ymissle == 255
spriteAdd(1, sprtMissle)
xmissle = xship
ymissle = 172
ymissle = 176
fin
if ymissle <> 255
if ymissle < 8
@ -172,10 +199,13 @@ def game(spdrcnt)#0
for k = 0 to spdrnum
if yspdr[k] <> 255
if ymissle >= yspdr[k] - 7 and ymissle <= yspdr[k] + 6
if xmissle >= xspdr[k] - 10 and xmissle <= xspdr[k] + 9
if xmissle >= xspdr[k] - 10 and xmissle <= xspdr[k] + 10
//
// Hit
//
if attack == k // Was it attacking?
attack = -1
fin
yspdr[k] = 255
ymissle = 255
spriteAdd(k + 8, spriteDup(sprtDummy))
@ -195,7 +225,7 @@ def game(spdrcnt)#0
// spriteDrawList()
spriteDrawXorList()
spriteDrawBuf(hgrSwap())
until ^$C000 > 127
until ^$C000 == $9B
getc
end
@ -209,7 +239,6 @@ sprtWeb1 = spriteCompile( 8, 8, 4, 0, @web1)
sprtWeb2 = spriteCompile(12, 8, 6, 0, @web2)
sprtWeb3 = spriteCompile(20, 8, 10, 0, @web3)
sprtDummy = spriteCompile( 7, 8, 0, 0, @dummy)
//hgrColor(4)
hgrColor(0)
hgrClear()
//moire