commit 0de6755c224e54938c2a05786affa7fa30cc60c4 Author: Dejvino Date: Thu Aug 8 16:29:16 2024 +0200 moonbus: simple base moon lander mechanics diff --git a/moonbus.p8 b/moonbus.p8 new file mode 100644 index 0000000..1d46d19 --- /dev/null +++ b/moonbus.p8 @@ -0,0 +1,189 @@ +pico-8 cartridge // http://www.pico-8.com +version 42 +__lua__ +-- MoonBus +-- by Dejvino + +plr_alive=1 +plr_pos={x=5,y=20} +plr_speed={x=0.5,y=0} +plr_static=false +plr_engine=-1 + +gravity=0.02 +engine_power=0.2 + +function _update() + -- controlls + plr_engine=-1 + if plr_alive then + if btn(⬆️) then plr_engine=⬆️ end + if btn(⬇️) then plr_engine=⬇️ end + if btn(⬅️) then plr_engine=⬅️ end + if btn(➡️) then plr_engine=➡️ end + end + + -- engine + if plr_engine==⬆️ then + plr_speed.y+=engine_power + elseif plr_engine==⬅️ then + plr_speed.x-=engine_power + elseif plr_engine==➡️ then + plr_speed.x+=engine_power + end + + -- move objects + move(plr_pos,plr_speed,0.1) + + -- gravity pull + if not plr_static then + plr_speed.y-=gravity + end + + -- crash detection + local pmaps=mget(plr_pos.x,plr_pos.y-1) + local solid=fget(pmaps,0) + if solid or plr_pos.y<=0 then + plr_speed.y*=-0.75 + plr_alive=0 + if (dist(plr_speed) > 1) then + sfx(0) + else + plr_speed.x=0 + plr_speed.x=0 + plr_static=true + end + end + + camera(plr_pos.x*8-60,-56) +end + +function _draw() + cls() + + map() + + local px,py=to_scrn(plr_pos) + local img=0 + if plr_alive==0 then + img=4 + elseif plr_engine==⬆️ then + img=2 + elseif plr_engine==⬅️ then + img=3 + elseif plr_engine==➡️ then + img=1 + end + spr(img,px,py) +end + +function to_scrn(p) + local x=p.x*8 + local y=128-p.y*8 + return x,y +end + +function move(p,d,a) + p.x+=d.x*a + p.y+=d.y*a +end + +function dist(p) + return abs(p.x) + abs(p.y) +end + +__gfx__ +000000000000000000000000000000000000aa000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 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