sdf

src/main.zig

@@ -61,8 +61,8 @@ const Particle = struct {
     }
     pub fn spawn(self:*Self,xaccel : f32,yaccel : f32) void
     {
-        const xrnr = randMinMaxFloat(-1-xaccel,1+xaccel);
-        const yrnr = randMinMaxFloat(-0.5-yaccel,0.5+yaccel);
+        const xrnr = randMinMaxFloat(-xaccel,xaccel);
+        const yrnr = randMinMaxFloat(-yaccel,yaccel);
 
         self.lifespan = rand.intRangeAtMost(u8,75,255);
         self.acceleration.a.x = xrnr;
@@ -70,7 +70,7 @@ const Particle = struct {
         self.position.a.x = @floatFromInt(rl.getMouseX()-screenWidth/2);
         self.position.a.y = @floatFromInt(rl.getMouseY()-screenHeight/2);
         self.velocity.a.x = 0;
-        self.velocity.a.y = -20;
+        self.velocity.a.y = 0;
         self.position.a.color.r = rand.intRangeAtMost(u8,0,30);
         self.position.a.color.g = rand.intRangeAtMost(u8,0,255);
         self.position.a.color.b = rand.intRangeAtMost(u8,0,255);
@@ -123,23 +123,24 @@ const Emitter = struct
     {
         var posx : i32 = 0;
         var posy : i32 = 0;
-        const att : Attractor = .{.vec = .{.a=.{.x=200,.y=200,.z=0}}};
-        const att2 : Attractor = .{.vec = .{.a=.{.x=400,.y=400,.z=0}}};
+        const att : Attractor = .{.vec = .{.a=.{.x=10,.y=10,.z=10}}};
+        const att2 : Attractor = .{.vec = .{.a=.{.x=-100,.y=-100,.z=0}}};
 
         att.draw();
+        att2.draw();
         for (self.particles) |*p| {
             if(p.show == 1)
             {
-                p.update();
+
                 p.applyGravity(0);
                 p.applyForce(att.attract(p.*));
                 p.applyForce(att2.attract(p.*));
+                p.update();
 
                 posx = @intFromFloat(screenWidth / 2 + p.position.a.x);
                 posy = @intFromFloat(screenHeight / 2 + p.position.a.y);
                 //rl.drawRectangle(posx,posy,2,2,rl.Color{.r=p.position.a.color.r,.g=p.position.a.color.g,.b=p.position.a.color.b,.a=255});
                 rl.drawTexture(texture,posx,posy,rl.Color.white);
-
             }
         }
     }
@@ -149,15 +150,20 @@ const Attractor = struct
     vec : pr.Vec,
     pub fn attract(self:Attractor,particle : Particle) pr.Vec
     {
+
         var vec = self.vec.sub(particle.position);
-        vec.a.x /= 100;
-        vec.a.y /= 100;
-        vec.a.z /= 100;
+        if( vec.a.x != 0 and vec.a.y != 0) 
+        {
+            vec.a.x = vec.a.x/20;
+            vec.a.y = vec.a.y/20;
+        }
         return vec;
     }
     pub fn draw(self:Attractor) void
     {
-        rl.drawRectangle(@intFromFloat(self.vec.a.x),@intFromFloat(self.vec.a.y),10,10,rl.Color{.r=10,.g=10,.b=120,.a=255});
+        const posx : i32 = @intFromFloat(screenWidth / 2 + self.vec.a.x);
+        const posy : i32 = @intFromFloat(screenHeight / 2 + self.vec.a.y);
+        rl.drawRectangle(posx,posy,10,10,rl.Color{.r=10,.g=10,.b=120,.a=255});
     }
 };
 fn ItoF(x:i32) f32
@@ -219,8 +225,8 @@ pub fn main() anyerror!void {
         });
 
         _ = rg.guiSlider(rect3,"0","500",&value,ItoF(0),ItoF(500));
-        _ = rg.guiSlider(rect4,"-3","3",&value2,ItoF(-3),ItoF(3));
-        _ = rg.guiSlider(rect5,"-3","3",&value3,ItoF(-3),ItoF(3));
+        _ = rg.guiSlider(rect4,"-3","3",&value2,ItoF(-10),ItoF(10));
+        _ = rg.guiSlider(rect5,"-3","3",&value3,-10,10);
 
         if(rl.isMouseButtonDown(rl.MouseButton.mouse_button_left))
         {