Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Make bouncy projectiles bounce off enemies when fired by the bouncer class #6

Open
wants to merge 1 commit into
base: master
Choose a base branch
from
Open

Make bouncy projectiles bounce off enemies when fired by the bouncer class #6

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
13 changes: 13 additions & 0 deletions GameObject.lua
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -63,6 +63,19 @@ function GameObject:enemyProjectileCollisions()
no_projectiles = proj.object.proj_spawned
})
end
elseif current_room.player.bouncer and proj.object.bounce and proj.object.bounce > 0 then
proj.object.bounce = proj.object.bounce - 1
local x1, y1 = proj.object.shape:center()
local x2, y2 = self.shape:center()
local n = math.atan2(y2 - y1, x2 -x1)
local nx, ny = math.cos(n), math.sin(n)
local wall = n - math.pi/2
local wx, wy = math.cos(wall), math.sin(wall)
local vx, vy = math.cos(proj.object.r), math.sin(proj.object.r)
local ux, uy = (vx * nx + vy * ny) * nx, (vx * nx + vy * ny) * ny
local wx, wy = vx - ux, vy - uy
local Vx, Vy = wx - ux, wy - uy
proj.object.r = math.acos(Vx), math.asin(Vy)
else
proj.object:die()
end
Expand Down