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2 Commits

Author SHA1 Message Date
bef95df6a1
typo 2023-12-20 13:18:20 -08:00
24435a3c15
move guns before ships 2023-12-20 13:18:01 -08:00

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@ -548,6 +548,284 @@ function ship_m:refresh_shield()
self.shield_refresh_ready = lframe + self.shieldcooldown
end
-->8
-- bullet and gun behaviors
bullet_base = {
enemyspd = 0.5
}
mknew(bullet_base)
gun_base = {
shoot_ready = -32768,
icon = 20
}
mknew(gun_base)
function bullet_base:hitship(_)
self:die()
return true
end
function bullet_base:die()
end
function bullet_base:move()
self.x += self.dx
if self.enemy then
self.y += self.dy
if self.y > 128 then
self:die()
return true
end
else
self.y -= self.dy
if self.y < -8*self.height then
self:die()
return true
end
end
return false
end
function bullet_base:draw()
spr(self.sprite, self.x, self.y, self.width, self.height)
end
function bullet_base:spawn_at(x, y)
self.x = x - self.center_x_off
if self.enemy then
self.dx *= self.enemyspd
self.dy *= self.enemyspd
self.y = y + self.top_y_off
ebullets:push_back(self)
else
self.y = y - (8 * self.height) + self.bottom_y_off
pbullets:push_back(self)
end
end
function gun_base:shoot(x, y)
if (lframe < self.shoot_ready) return false
if self.ammo then
if (self.ammo <= 0) return false
self.ammo -= 1
end
self.shoot_ready = lframe + self.cooldown
self:actually_shoot(x, y)
return true
end
function gun_base:actually_shoot(x, y)
local typ = self.t
local b = typ.new{
enemy = self.enemy,
sprite = self.enemy and typ.esprite or typ.psprite,
}
b:spawn_at(x, y)
return true
end
-->8
-- bullets and guns
zap = bullet_base.new{
--shape
psprite = 8, --index of player ammo sprite
esprite = 9, -- index of enemy ammo sprite
width = 1, --in 8x8 blocks
height = 1,
hurt = { -- hurtbox - where this ship can be hit
x_off = 0, -- upper left corner
y_off = 0, -- relative to sprite
width = 2,
height = 8
},
center_x_off = 1, -- how to position by ship
bottom_y_off = 0,
top_y_off = 0,
damage = 1,
dx = 0, -- px/frame
dy = 8,
hitship = function(_, _)
return true
end
}
mknew(zap)
zap_gun = gun_base.new{
enemy = false,
power = 20, -- power consumed per shot
cooldown = 0x0.000a, -- frames between shots
ammo = nil, -- unlimited ammo - main gun
t = zap -- metatable of bullet to fire
}
mknew(zap_gun)
blast = bullet_base.new{
--shape
psprite = 12, --index of player ammo sprite
esprite = 3, -- index of enemy ammo sprite
width = 1, --in 8x8 blocks
height = 1,
hurt = { -- hurtbox - where this ship can be hit
x_off = 1, -- upper left corner
y_off = 1, -- relative to sprite
width = 6,
height = 6
},
center_x_off = 4, -- how to position by ship
bottom_y_off = 0,
top_y_off = 0,
damage = 4,
dx = 0, -- px/frame
dy = 2,
awaitcancel = false,
-- disable damage for 2 frames
-- when hitting something
hitship = function(self, _)
if self.damage > 0 and not self.awaitcancel then
self.awaitcancel = true
once_next_frame(function()
new_events:push_back{
wait = 2,
obj = self,
saved_dmg = self.damage,
move = function(self)
self.wait -= 1
if self.wait <= 0 then
self.obj.damage = self.saved_dmg
return true
end
end,
}
self.damage = 0
self.awaitcancel = false
end)
end
end
}
mknew(blast)
blast_gun = gun_base.new{
icon = 13,
enemy = false,
power = 0, -- ammo, not power
cooldown = 0x0.0020, -- frames between shots
ammo = 5,
maxammo = 5,
t = blast -- type of bullet to fire
}
mknew(blast_gun)
protron = bullet_base.new{
--shape
psprite = 23, --index of player ammo sprite
esprite = 24, -- index of enemy ammo sprite
width = 1, --in 8x8 blocks
height = 1,
hurt = { -- hurtbox - where this ship can be hit
x_off = 1, -- upper left corner
y_off = 1, -- relative to sprite
width = 2,
height = 2
},
center_x_off = 1, -- how to position by ship
bottom_y_off = 4,
top_y_off = 0,
damage = 1,
dx = 0, -- px/frame
dy = 3,
}
mknew(protron)
protron_gun = gun_base.new{
icon = 25,
enemy = false,
power = 35,
cooldown = 0x0.000f, -- frames between shots
ammo = nil,
maxammo = nil,
actually_shoot = function(self, x, y)
local sprite = protron.psprite
if (self.enemy) sprite=protron.esprite
for i=1,3 do
local b = protron.new{
enemy=self.enemy,
sprite=sprite,
dx = i,
dy = 4-i
}
b:spawn_at(x,y)
local b2 = protron.new{
enemy=self.enemy,
sprite=sprite,
dx = -i,
dy = 4-i
}
b2:spawn_at(x,y)
end
local bup = protron.new{
enemy=self.enemy,
sprite=sprite,
dy=4
}
bup:spawn_at(x,y)
end
}
mknew(protron_gun)
vulcan = bullet_base.new{
--shape
psprite = 22, --index of player ammo sprite
esprite = 21, -- index of enemy ammo sprite
width = 1, --in 8x8 blocks
height = 1,
hurt = { -- hurtbox - where this ship can be hit
x_off = 0, -- upper left corner
y_off = 0, -- relative to sprite
width = 1,
height = 4
},
center_x_off = 0.5, -- how to position by ship
bottom_y_off = 4,
top_y_off = 0,
damage = 0.5,
dx = 0, -- px/frame
dy = 4,
}
mknew(vulcan)
vulcan_gun = gun_base.new{
icon = 37,
enemy = false,
power = 8,
cooldown = 0x0.0002, -- frames between shots
ammo = nil,
maxammo = nil,
dxs = {0.35, -0.35, -0.7, 0.7, 0.35, -0.35},
xoffs = {1, 0, -1, 1, 0, -1},
dxidx = 1,
actually_shoot = function(self, x, y)
local sprite = self.enemy and vulcan.esprite or vulcan.psprite
local b = vulcan.new{
enemy=self.enemy,
sprite=sprite,
dx = self.dxs[self.dxidx],
}
b:spawn_at(self.xoffs[self.dxidx]+x,y)
self.dxidx += 1
if (self.dxidx > #self.dxs) self.dxidx = 1
end
}
mknew(vulcan_gun)
-->8
--ships, including player
@ -869,7 +1147,7 @@ function load_level(levelfile)
current_level[row[1]] = eol
else
row.next = x
currentlevel[row[1]]=row
current_level[row[1]]=row
end
end
assert(found_eol)
@ -1091,284 +1369,6 @@ example_level_csv=[[1,spawn_frownie
700,spawn_blocking_boss_chasey
701,eol]]
-->8
-- bullet and gun behaviors
bullet_base = {
enemyspd = 0.5
}
mknew(bullet_base)
gun_base = {
shoot_ready = -32768,
icon = 20
}
mknew(gun_base)
function bullet_base:hitship(_)
self:die()
return true
end
function bullet_base:die()
end
function bullet_base:move()
self.x += self.dx
if self.enemy then
self.y += self.dy
if self.y > 128 then
self:die()
return true
end
else
self.y -= self.dy
if self.y < -8*self.height then
self:die()
return true
end
end
return false
end
function bullet_base:draw()
spr(self.sprite, self.x, self.y, self.width, self.height)
end
function bullet_base:spawn_at(x, y)
self.x = x - self.center_x_off
if self.enemy then
self.dx *= self.enemyspd
self.dy *= self.enemyspd
self.y = y + self.top_y_off
ebullets:push_back(self)
else
self.y = y - (8 * self.height) + self.bottom_y_off
pbullets:push_back(self)
end
end
function gun_base:shoot(x, y)
if (lframe < self.shoot_ready) return false
if self.ammo then
if (self.ammo <= 0) return false
self.ammo -= 1
end
self.shoot_ready = lframe + self.cooldown
self:actually_shoot(x, y)
return true
end
function gun_base:actually_shoot(x, y)
local typ = self.t
local b = typ.new{
enemy = self.enemy,
sprite = self.enemy and typ.esprite or typ.psprite,
}
b:spawn_at(x, y)
return true
end
-->8
-- bullets and guns
zap = bullet_base.new{
--shape
psprite = 8, --index of player ammo sprite
esprite = 9, -- index of enemy ammo sprite
width = 1, --in 8x8 blocks
height = 1,
hurt = { -- hurtbox - where this ship can be hit
x_off = 0, -- upper left corner
y_off = 0, -- relative to sprite
width = 2,
height = 8
},
center_x_off = 1, -- how to position by ship
bottom_y_off = 0,
top_y_off = 0,
damage = 1,
dx = 0, -- px/frame
dy = 8,
hitship = function(_, _)
return true
end
}
mknew(zap)
zap_gun = gun_base.new{
enemy = false,
power = 20, -- power consumed per shot
cooldown = 0x0.000a, -- frames between shots
ammo = nil, -- unlimited ammo - main gun
t = zap -- metatable of bullet to fire
}
mknew(zap_gun)
blast = bullet_base.new{
--shape
psprite = 12, --index of player ammo sprite
esprite = 3, -- index of enemy ammo sprite
width = 1, --in 8x8 blocks
height = 1,
hurt = { -- hurtbox - where this ship can be hit
x_off = 1, -- upper left corner
y_off = 1, -- relative to sprite
width = 6,
height = 6
},
center_x_off = 4, -- how to position by ship
bottom_y_off = 0,
top_y_off = 0,
damage = 4,
dx = 0, -- px/frame
dy = 2,
awaitcancel = false,
-- disable damage for 2 frames
-- when hitting something
hitship = function(self, _)
if self.damage > 0 and not self.awaitcancel then
self.awaitcancel = true
once_next_frame(function()
new_events:push_back{
wait = 2,
obj = self,
saved_dmg = self.damage,
move = function(self)
self.wait -= 1
if self.wait <= 0 then
self.obj.damage = self.saved_dmg
return true
end
end,
}
self.damage = 0
self.awaitcancel = false
end)
end
end
}
mknew(blast)
blast_gun = gun_base.new{
icon = 13,
enemy = false,
power = 0, -- ammo, not power
cooldown = 0x0.0020, -- frames between shots
ammo = 5,
maxammo = 5,
t = blast -- type of bullet to fire
}
mknew(blast_gun)
protron = bullet_base.new{
--shape
psprite = 23, --index of player ammo sprite
esprite = 24, -- index of enemy ammo sprite
width = 1, --in 8x8 blocks
height = 1,
hurt = { -- hurtbox - where this ship can be hit
x_off = 1, -- upper left corner
y_off = 1, -- relative to sprite
width = 2,
height = 2
},
center_x_off = 1, -- how to position by ship
bottom_y_off = 4,
top_y_off = 0,
damage = 1,
dx = 0, -- px/frame
dy = 3,
}
mknew(protron)
protron_gun = gun_base.new{
icon = 25,
enemy = false,
power = 35,
cooldown = 0x0.000f, -- frames between shots
ammo = nil,
maxammo = nil,
actually_shoot = function(self, x, y)
local sprite = protron.psprite
if (self.enemy) sprite=protron.esprite
for i=1,3 do
local b = protron.new{
enemy=self.enemy,
sprite=sprite,
dx = i,
dy = 4-i
}
b:spawn_at(x,y)
local b2 = protron.new{
enemy=self.enemy,
sprite=sprite,
dx = -i,
dy = 4-i
}
b2:spawn_at(x,y)
end
local bup = protron.new{
enemy=self.enemy,
sprite=sprite,
dy=4
}
bup:spawn_at(x,y)
end
}
mknew(protron_gun)
vulcan = bullet_base.new{
--shape
psprite = 22, --index of player ammo sprite
esprite = 21, -- index of enemy ammo sprite
width = 1, --in 8x8 blocks
height = 1,
hurt = { -- hurtbox - where this ship can be hit
x_off = 0, -- upper left corner
y_off = 0, -- relative to sprite
width = 1,
height = 4
},
center_x_off = 0.5, -- how to position by ship
bottom_y_off = 4,
top_y_off = 0,
damage = 0.5,
dx = 0, -- px/frame
dy = 4,
}
mknew(vulcan)
vulcan_gun = gun_base.new{
icon = 37,
enemy = false,
power = 8,
cooldown = 0x0.0002, -- frames between shots
ammo = nil,
maxammo = nil,
dxs = {0.35, -0.35, -0.7, 0.7, 0.35, -0.35},
xoffs = {1, 0, -1, 1, 0, -1},
dxidx = 1,
actually_shoot = function(self, x, y)
local sprite = self.enemy and vulcan.esprite or vulcan.psprite
local b = vulcan.new{
enemy=self.enemy,
sprite=sprite,
dx = self.dxs[self.dxidx],
}
b:spawn_at(self.xoffs[self.dxidx]+x,y)
self.dxidx += 1
if (self.dxidx > #self.dxs) self.dxidx = 1
end
}
mknew(vulcan_gun)
-->8
-- readme.md