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Basic collisions with slopes

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This commit is contained in:
Jean-André Santoni 2017-07-04 00:00:54 +02:00
parent 6fc08d233d
commit ca71166824
2 changed files with 41 additions and 2 deletions
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39
collisions.lua
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@ -11,7 +11,44 @@ function detect_collisions()
return
end
if e1.x < e2.x + e2.width
if (e2.type == "slopeleft" or e2.type == "sloperight")
and e1.x < e2.x + e2.width
and e1.x + e1.width > e2.x
and e1.y < e2.y + e2.height
and e1.height + e1.y > e2.y
and e1.on_collide
then
local e1cx = e1.x + e1.width / 2.0
local e2cx = e2.x + e2.width / 2.0
local dx
if e1cx < e2cx then
dx = e2.x - (e1.x + e1.width)
else
dx =(e2.x + e2.width) - e1.x
end
local e1cy = e1.y + e1.height / 2.0
local e2cy = e2.y + e2.height / 2.0
local dy
if e1cy < e2cy then
dy = e2.y - (e1.y + e1.height)
else
dy = (e2.y + e2.height) - e1.y
end
if e2.type == "slopeleft" then
local slope_y = e2.y + e2.height -(e1.x + e1.width - e2.x) / (e2.width / e2.height)
if e1.y + e1.height > slope_y then
e1:on_collide(e1, e2, dx, dy)
end
elseif e2.type == "sloperight" then
local slope_y = e2.y +((e1.x - 1 - e2.x) / (e2.width / e2.height))
if e1.y + e1.height > slope_y then
e1:on_collide(e1, e2, dx, dy)
end
end
elseif e1.x < e2.x + e2.width
and e1.x + e1.width > e2.x
and e1.y < e2.y + e2.height
and e1.height + e1.y > e2.y

4
shuriken.lua
View File

@ -46,7 +46,9 @@ function shuriken:draw()
end
function shuriken:on_collide(e1, e2, dx, dy)
if e2.type == "ground" and self.die == 0 then
if (e2.type == "ground"
or e2.type == "slopeleft"
or e2.type == "sloperight") and self.die == 0 then
self.speed = 0
self.anim.speed = 0
self.die = 30