mirror of
https://github.com/irmen/prog8.git
synced 2024-07-08 10:29:09 +00:00
making snow example more interesting
This commit is contained in:
Irmen de Jong
parent
475e927178
commit
4e103a1963
@ -23,7 +23,7 @@ diskio {
|
||||
void c64.CHRIN() ; skip the 4 prologue bytes
|
||||
}
|
||||
|
||||
; while not key pressed / EOF encountered, read data.
|
||||
; while not stop key pressed / EOF encountered, read data.
|
||||
status = c64.READST()
|
||||
if status!=0 {
|
||||
status = 1
|
||||
@ -84,7 +84,6 @@ io_error:
|
||||
if c64.READST()!=0
|
||||
goto io_error
|
||||
|
||||
; while not key pressed / EOF encountered, read data.
|
||||
cx16.r0 = &list_filename
|
||||
repeat {
|
||||
@(cx16.r0) = c64.CHRIN()
|
||||
|
||||
@ -3,6 +3,13 @@ TODO
|
||||
|
||||
For next release
|
||||
^^^^^^^^^^^^^^^^
|
||||
- fix compiler crash on : bool bb = gfx2.pget(pilex1, flakes1_yy[idx]+1) in PILED_SNOW_COLORS
|
||||
- bool bb = not bb -> larger code than bool bb ^= 1
|
||||
- bool xx = ~xx -> larger code than xx ^= 1
|
||||
- ubyte xx = not xx -> much larger code than xx ^= 1
|
||||
- try to support "not (xx in array)" or maybe even "xx not in array"
|
||||
- astchecker: "containment check is currently not supported inside complex expressions" fix this?
|
||||
or at least disable this check for virtual target?
|
||||
|
||||
...
|
||||
|
||||
|
||||
@ -5,37 +5,44 @@ main {
|
||||
sub start() {
|
||||
gfx2.screen_mode(4)
|
||||
|
||||
uword[128] xx
|
||||
uword[128] yy
|
||||
uword[128] flakes1_xx
|
||||
uword[128] flakes1_yy
|
||||
uword[128] flakes2_xx
|
||||
uword[128] flakes2_yy
|
||||
|
||||
ubyte @zp idx
|
||||
for idx in 0 to 127 {
|
||||
xx[idx] = math.rndw() % 320
|
||||
yy[idx] = math.rndw() % 240
|
||||
flakes1_xx[idx] = math.rndw() % 320
|
||||
flakes1_yy[idx] = math.rndw() % 240
|
||||
flakes2_xx[idx] = math.rndw() % 320
|
||||
flakes2_yy[idx] = math.rndw() % 240
|
||||
}
|
||||
|
||||
gfx2.text(96, 90, 2, sc:"**************")
|
||||
gfx2.text(104, 100, 5, sc:"let it snow!")
|
||||
gfx2.text(96, 110, 2, sc:"**************")
|
||||
draw_screen()
|
||||
|
||||
const ubyte FALLING_SNOW_COLOR = 1
|
||||
const ubyte FALLING_SNOW_COLOR2 = 12
|
||||
const ubyte PILED_SNOW_COLOR = 15
|
||||
ubyte[] PILED_SNOW_COLORS = [PILED_SNOW_COLOR, 5, 2] ; falling snow colors should NOT be in here!
|
||||
bool fall_layer_2 = false
|
||||
|
||||
repeat {
|
||||
sys.waitvsync()
|
||||
for idx in 0 to 127 {
|
||||
gfx2.plot(xx[idx], yy[idx], FALLING_SNOW_COLOR)
|
||||
for idx in 0 to len(flakes1_xx)-1 {
|
||||
gfx2.plot(flakes1_xx[idx], flakes1_yy[idx], FALLING_SNOW_COLOR)
|
||||
gfx2.plot(flakes2_xx[idx], flakes2_yy[idx], FALLING_SNOW_COLOR2)
|
||||
}
|
||||
sys.waitvsync()
|
||||
for idx in 0 to 127 {
|
||||
if yy[idx]==239 {
|
||||
|
||||
for idx in 0 to len(flakes1_xx)-1 {
|
||||
if flakes1_yy[idx]==239 {
|
||||
; reached the floor
|
||||
gfx2.plot(xx[idx], yy[idx], PILED_SNOW_COLOR)
|
||||
yy[idx] = 0
|
||||
xx[idx] = math.rndw() % 320
|
||||
} else if gfx2.pget(xx[idx], yy[idx]+1)==PILED_SNOW_COLOR {
|
||||
gfx2.plot(flakes1_xx[idx], flakes1_yy[idx], PILED_SNOW_COLOR)
|
||||
flakes1_yy[idx] = 0
|
||||
flakes1_xx[idx] = math.rndw() % 320
|
||||
} else if gfx2.pget(flakes1_xx[idx], flakes1_yy[idx]+1) in PILED_SNOW_COLORS {
|
||||
; pile up
|
||||
uword @zp snowx = xx[idx]
|
||||
; TODO somehow prevent growing horizontally/diagonally like a crystal
|
||||
uword @zp snowx = flakes1_xx[idx]
|
||||
if snowx!=0 and snowx!=319 { ; check to avoid x coordinate under/overflow
|
||||
uword pilex1
|
||||
uword pilex2
|
||||
@ -46,30 +53,63 @@ main {
|
||||
pilex1 = snowx+1
|
||||
pilex2 = snowx-1
|
||||
}
|
||||
if gfx2.pget(pilex1, yy[idx]+1)==0 {
|
||||
gfx2.plot(snowx, yy[idx], 0)
|
||||
gfx2.plot(pilex1, yy[idx]+1, PILED_SNOW_COLOR)
|
||||
} else if gfx2.pget(pilex2, yy[idx]+1)==0 {
|
||||
gfx2.plot(snowx, yy[idx], 0)
|
||||
gfx2.plot(pilex2, yy[idx]+1, PILED_SNOW_COLOR)
|
||||
ubyte pixel_side1 = gfx2.pget(pilex1, flakes1_yy[idx]+1)
|
||||
ubyte pixel_side2 = gfx2.pget(pilex2, flakes1_yy[idx]+1)
|
||||
if pixel_side1 == 0 or pixel_side1 == FALLING_SNOW_COLOR2 {
|
||||
gfx2.plot(snowx, flakes1_yy[idx], 0)
|
||||
gfx2.plot(pilex1, flakes1_yy[idx]+1, PILED_SNOW_COLOR)
|
||||
} else if pixel_side2 == 0 or pixel_side2 == FALLING_SNOW_COLOR2 {
|
||||
gfx2.plot(snowx, flakes1_yy[idx], 0)
|
||||
gfx2.plot(pilex2, flakes1_yy[idx]+1, PILED_SNOW_COLOR)
|
||||
} else {
|
||||
gfx2.plot(snowx, yy[idx], PILED_SNOW_COLOR)
|
||||
gfx2.plot(snowx, flakes1_yy[idx], PILED_SNOW_COLOR)
|
||||
}
|
||||
}
|
||||
yy[idx] = 0
|
||||
xx[idx] = math.rndw() % 320
|
||||
flakes1_yy[idx] = 0
|
||||
flakes1_xx[idx] = math.rndw() % 320
|
||||
} else {
|
||||
; fall
|
||||
gfx2.plot(xx[idx], yy[idx], 0)
|
||||
yy[idx]++
|
||||
gfx2.plot(flakes1_xx[idx], flakes1_yy[idx], 0)
|
||||
flakes1_yy[idx]++
|
||||
when math.rnd() & 3 {
|
||||
1 -> {
|
||||
if xx[idx]
|
||||
xx[idx]--
|
||||
if flakes1_xx[idx]
|
||||
flakes1_xx[idx]--
|
||||
}
|
||||
2 -> {
|
||||
if xx[idx] < 319
|
||||
xx[idx]++
|
||||
if flakes1_xx[idx] < 319
|
||||
flakes1_xx[idx]++
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
fall_layer_2 = not fall_layer_2
|
||||
if fall_layer_2 {
|
||||
for idx in 0 to len(flakes2_xx)-1 {
|
||||
; the second 'layer' of snowflakes
|
||||
if flakes2_yy[idx]==239 {
|
||||
; reached the floor, don't pile up just fall again
|
||||
flakes2_yy[idx] = 0
|
||||
flakes2_xx[idx] = math.rndw() % 320
|
||||
} else if gfx2.pget(flakes2_xx[idx], flakes2_yy[idx]+1) in PILED_SNOW_COLORS {
|
||||
; reached an obstruction, don't pile up just fall again
|
||||
flakes2_yy[idx] = 0
|
||||
flakes2_xx[idx] = math.rndw() % 320
|
||||
} else {
|
||||
; fall normally
|
||||
gfx2.plot(flakes2_xx[idx], flakes2_yy[idx], 0)
|
||||
flakes2_yy[idx]+=1
|
||||
when math.rnd() & 3 {
|
||||
1 -> {
|
||||
if flakes2_xx[idx]
|
||||
flakes2_xx[idx]--
|
||||
}
|
||||
2 -> {
|
||||
if flakes2_xx[idx] < 319
|
||||
flakes2_xx[idx]++
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
@ -79,4 +119,28 @@ main {
|
||||
repeat {
|
||||
}
|
||||
}
|
||||
|
||||
sub draw_screen() {
|
||||
gfx2.text(32, 130, 2, sc: "******************" )
|
||||
gfx2.text(40, 140, 5, sc: "happy holidays !" )
|
||||
gfx2.text(32, 150, 5, sc: "from commander x16" )
|
||||
gfx2.text(32, 160, 2, sc: "******************" )
|
||||
|
||||
; draw a tree
|
||||
|
||||
const uword TREEX = 240
|
||||
ubyte maxwidth = 20
|
||||
ubyte branchesy = 100
|
||||
|
||||
gfx2.fillrect(TREEX-5, 210, 10, 30, 9)
|
||||
repeat 5 {
|
||||
ubyte width
|
||||
for width in 1 to maxwidth {
|
||||
gfx2.horizontal_line(TREEX-width/2, branchesy, width, 5)
|
||||
branchesy++
|
||||
}
|
||||
branchesy -= maxwidth/2
|
||||
maxwidth += 8
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user