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Add some rudimentary code for facing and collision detection.

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This commit is contained in:
Anna Rose 2019-12-05 22:02:52 -05:00
parent bbd3c089d9
commit 546de63412
2 changed files with 107 additions and 6 deletions
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59
infimap.p8
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@ -13,3 +13,62 @@ __gfx__
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54
movement.lua
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@ -1,14 +1,53 @@
function init_movement()
camera_pos = {0, 0}
-- [1] is vertical facing, [2] is horizontal, -1 is up/left, 0 is neutral,
-- and 1 is down/right
facing = {1, 0}
-- this is a constant for looking up player sprites by facing
player_lookup = {
[{0, 0}] = -1, -- this state is an error
[{-1, 0}] = 120, -- up
[{1, 0}] = 121, -- down
[{0, -1}] = 122, -- left
[{0, 1}] = 123, -- right
[{-1, -1}] = 124, -- up-left
[{-1, 1}] = 125, -- up-right
[{1, -1}] = 126, -- down-left
[{1, 1}] = 127 -- down-right
}
end
function handle_input()
new_pos = camera_pos
if (btnp(0)) new_pos[1] -= 1 -- move left
if (btnp(1)) new_pos[1] += 1 -- move right
if (btnp(2)) new_pos[2] -= 1 -- move up
if (btnp(3)) new_pos[2] += 1 -- move down
if btnp(0) or btnp(1) or btnp(2) or btnp(3) then
if btnp(0) then
new_pos[1] -= 1 -- move left
facing[2] = -1
end
if btnp(1) then
new_pos[1] += 1 -- move right
facing[2] = 1
end
if not (btnp(0) or btnp(1)) then
facing[2] = 0
end
if btnp(2) then
new_pos[2] -= 1 -- move up
facing[1] = -1
end
if btnp(3) then
new_pos[2] += 1 -- move down
facing[1] = 1
end
if not (btnp(2) or btnp(3)) then
facing[1] = 0
end
end
if legal_move(new_pos) then
camera_pos = new_pos
@ -18,9 +57,12 @@ function handle_input()
end
function draw_player()
spr(player_lookup[facing], 64, 64)
-- todo: animate the character on move
end
-- pos is a camera position, meaning the player position is
-- pos + {8, 8}
function legal_move(pos)
return true
return fget(mget(pos[1]+8, pos[2]+8), 0)
end