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bullets = {}
function addbullet(x, y, velx, vely, evil, sprite)
local bullet = {}
bullet.sprite = sprite
bullet.evil = evil
bullet.x = x
bullet.y = y
bullet.velx = velx
bullet.vely = vely
function bullet.draw(bullet)
spr(bullet.sprite, bullet.x, bullet.y)
end
function bullet.collide(object)
if bullet.x+4 >= object.x and bullet.x+4 <= object.x+object.w and bullet.y+4 >= object.y and bullet.y+4 <= object.y+object.h and object.inv < 0 then
object:shot()
del(obj, bullet)
end
end
function bullet.accurate_collide(object)
if bullet.x+4 >= object.x-2 and bullet.x+4 <= object.x+2+object.w and bullet.y+4 >= object.y-2 and bullet.y+4 <= object.y+object.h+2 then
object:shot()
del(obj, bullet)
end
end
function bullet.update(bullet)
--applying velocity
bullet.x += bullet.velx
bullet.y += bullet.vely
--collision detection
if bullet.evil then
foreach(players, bullet.collide)
elseif bullet.evil == false then
foreach(enemies, bullet.accurate_collide)
end
--delete bullet if off screen
if bullet.y > 128 or bullet.y < -8 or bullet.x > 128 or bullet.x < -8 then
del(obj, bullet)
end
end
add(obj, bullet)
add(bullet, #obj)
end
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