added Vec2::size

src/image.rs

@@ -1,17 +1,17 @@
-use std::fs::File;
 use crate::vec2::Vec2;
+use std::fs::File;
 
 //todo: make dynamically different bitdepths
 pub struct Image {
     data: Vec<u8>,
-    size: Vec2<i32>
+    size: Vec2<i32>,
 }
 
 impl Image {
     pub fn new(size: Vec2<i32>) -> Self {
         Image {
-            data: vec![0u8; (size.x * size.y) as usize],
-            size
+            data: vec![0u8; size.size()],
+            size,
         }
     }
 
@@ -29,7 +29,10 @@ impl Image {
         decoder.read_into_buffer(&mut data).unwrap();
         Image {
             data,
-            size: Vec2 {x: x as i32, y: y as i32}
+            size: Vec2 {
+                x: x as i32,
+                y: y as i32,
+            },
         }
     }
 
@@ -50,10 +53,20 @@ impl Image {
         for y in 0..image.size.y {
             for x in 0..image.size.x {
                 //todo: implement better(very stupid to do per pixel)
-                if x + pos.x >= 0 && y + pos.y >= 0 && x + pos.x < self.size.x && y + pos.y < self.size.y {
+                if x + pos.x >= 0
+                    && y + pos.y >= 0
+                    && x + pos.x < self.size.x
+                    && y + pos.y < self.size.y
+                {
                     let p = image.get_pixel(Vec2 { x, y });
                     if p > 0 {
-                        self.set_pixel(Vec2 { x: x + pos.x, y: y + pos.y }, p);
+                        self.set_pixel(
+                            Vec2 {
+                                x: x + pos.x,
+                                y: y + pos.y,
+                            },
+                            p,
+                        );
                     }
                 }
             }
@@ -75,7 +88,13 @@ impl Image {
         let xs = xdiff / step;
         let ys = ydiff / step;
         for _ in 1..=(step as i32) {
-            self.set_pixel(Vec2 { x: x as i32, y: y as i32 }, color);
+            self.set_pixel(
+                Vec2 {
+                    x: x as i32,
+                    y: y as i32,
+                },
+                color,
+            );
             x += xs;
             y += ys;
         }

src/vec2.rs

@@ -1,14 +1,23 @@
-use num::Num;
+use num::{Num, ToPrimitive};
 
 #[derive(Copy, Clone)]
-pub struct Vec2<T : Num + Copy> {
+pub struct Vec2<T: Num + Copy + ToPrimitive> {
     pub x: T,
     pub y: T,
 }
 
 impl<T: Num + Copy> Vec2<T> {
+    //pub static
     pub fn zero() -> Self {
-        Vec2 {x: T::zero(), y: T::zero()}
+        Vec2 {
+            x: T::zero(),
+            y: T::zero(),
+        }
+    }
+
+    //pub
+    pub fn size(&self) -> usize {
+        (self.x * self.y) as usize
     }
 }
 
@@ -16,7 +25,7 @@ impl<T : Num + Copy + Default> Default for Vec2<T> {
     fn default() -> Self {
         Vec2 {
             x: T::default(),
-            y: T::default()
+            y: T::default(),
         }
     }
 }