vec<x/y>, sin, cos

[DustyPorViva]

Ya, you can do that. Or you can also specify a few check points (I did this once withe sword.gani, I opened the gani up in Graalshop and translated the pixel position of the tip of the sword into tiles for each frame, and did checks there.

[Codein]

That seems like a good alternative. However, I plan to use weapons which vary in length. It'd look silly if I had a large bamboo pole (there's a japanese word I'm trying to think of) that only did damage at the end of the pole. Obviously, I'm looking more towards doing damage if you're in the area of the sector rather than on the circumference.

[DustyPorViva]

You can define the area of a circle you're willing to check by specifying a point A with an angle and radius, then check all along a circle until getting to point B, which would also be an angle with a radius. Something like:

PHP Code:

this.width=pi/2;
this.checkcount=10;
this.checkwidth=this.width/this.checkcount;
this.radius=5;
this.angle=((player.dir-1)%4)*(pi/2);
for (i=0;i<this.checkcount;i++) {
  triggeraction(player.x+cos(this.angle+(this.checkwidth*i))*this.radius,player.y-sin(this.angle+(this.checkwidth*i))*this.radius,"attack");
} 


Or something like that.

[zokemon]

Grades of Math are different in every school so you can't really say "10th grade math".

[Codein]

I got taught about basic trig, including cos/sin/tan functions, at around 13 years old and was a recurring subject until I'd finished school, which was about 3 months ago or so.

As soon as it comes up once in your syllabus, it's more than likely to reoccur in the future. For example, I'm taking Maths at Sixth-Form (which is like Year 12 and 13 of school) and trigonometry makes up a good part of it.

[Switch]

Originally Posted by Codein

I got taught about basic trig, including cos/sin/tan functions, at around 13 years old and was a recurring subject until I'd finished school, which was about 3 months ago or so.

As soon as it comes up once in your syllabus, it's more than likely to reoccur in the future. For example, I'm taking Maths at Sixth-Form (which is like Year 12 and 13 of school) and trigonometry makes up a good part of it.

I'm learning 9th grade general stuff at age 12 so I guess I'll be learning next year.

[Codein]

Originally Posted by Switch

I'm learning 9th grade general stuff at age 12 so I guess I'll be learning next year.

I think Grade 8 is like Year 9 in England.

[Switch]

Originally Posted by Codein

I think Grade 8 is like Year 9 in England.

I'm in 7th grade o_O

[Codein]

Originally Posted by Switch

I'm in 7th grade o_O

Yeah, but you'll move on to 8th Grade sooner or later :P

Nothing is stopping you from learning though :P

[Switch]

Originally Posted by Codein

Yeah, but you'll move on to 8th Grade sooner or later :P

Nothing is stopping you from learning though :P

Next year = 8th grade = I learn sin/cos in school

[Codein]

Originally Posted by Switch

Next year = 8th grade = I learn sin/cos in school

Why wait if you have a desire to learn?

[Switch]

Originally Posted by Codein

Why wait if you have a desire to learn?

Cuz I don't understand what the hell they're talkin about xD

[Codein]

Originally Posted by Switch

Cuz I don't understand what the hell they're talkin about xD

Ever thought about googling it? If this yields no results, PM me :P