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How to create enemy and player collision?
Posted: Wed Jun 04, 2014 6:42 am
by redsled
Hello, this is my first post from snooping around the forums and decided I try it out. I'm still a little new to Love2d, but this is more of a coding problem than a Loved2d problem. So I'm making a little game where enemies are generated and the player goes around and shoots them. I'm having problems figuring out so that when a enemy intersects the player, the enemy stops moving yet keeping it's original x and y. I've tried using this code for the left of the player intersecting with the right of the enemy:
Code: Select all
for i,v in ipairs(enemy) do
local startX = v.x
local startXvel = v.xvel
if player.x + player.width > v.x then
v.x = player.x - v.width
v.xvel = player.xvel
end
v.x = startX
v.xvel = startXvel
end
Yet the enemy always moves through the player. If I take a the last two lines in the for loop, the enemies x equals the players. Thanks for the help.
Re: How to create enemy and player collision?
Posted: Wed Jun 04, 2014 10:03 am
by davisdude
Hi and welcome to LÖVE!
The enemy keeps moving through the player because you just the set
enemy.xvel to whatever the player's is. I assume next you change the player's velocity. Try changing that to v.xvel = 0. Not to mention, right after that, you change it back to its original velocity (
v.xvel = startXvel). You need to remove the last two lines and replace the sixth with
v.xvel = 0.
Without more code that's all I can do.
Re: How to create enemy and player collision?
Posted: Wed Jun 04, 2014 9:40 pm
by redsled
davisdude wrote:Hi and welcome to LÖVE!
The enemy keeps moving through the player because you just the set
enemy.xvel to whatever the player's is. I assume next you change the player's velocity. Try changing that to v.xvel = 0. Not to mention, right after that, you change it back to its original velocity (
v.xvel = startXvel). You need to remove the last two lines and replace the sixth with
v.xvel = 0.
Without more code that's all I can do.
Thanks for the advice but again I still incur some problems. Here's all of the code and the code that I previously posted was inside player.physics
https://www.mediafire.com/?i3f8uxamamdg6d8. Thanks again for the help because this can become very frustrating.
Re: How to create enemy and player collision?
Posted: Fri Jun 06, 2014 6:53 pm
by davisdude
Hey, I fixed your code. Check out the changes I made.
Re: How to create enemy and player collision?
Posted: Fri Jun 06, 2014 7:25 pm
by redsled
davisdude wrote:Hey, I fixed your code. Check out the changes I made.
Thanks davis, I grateful for the advice and the help. But is there any way to make so that the player cannot pass through the enemies or is that inevitable? I am happy to know that the LOVE2D forums is very kind and helpful.
Re: How to create enemy and player collision?
Posted: Sun Jun 08, 2014 2:21 pm
by davisdude
Yeah, there is. Just look at the enemy.physics code, and use the same logic for the player. I wanted to leave something for you to do- you learn more from doing.
Re: How to create enemy and player collision?
Posted: Tue Jun 10, 2014 6:42 pm
by redsled
davisdude wrote:Yeah, there is. Just look at the enemy.physics code, and use the same logic for the player. I wanted to leave something for you to do- you learn more from doing.
Thanks for the help davis!