diff --git a/image.go b/image.go
index df6c5d693..9e8eb9bf5 100644
--- a/image.go
+++ b/image.go
@@ -96,7 +96,7 @@ func (i *Image) DrawImage(image *Image, options *DrawImageOptions) (err error) {
 }
 
 // DrawLine draws a line.
-func (i *Image) DrawLine(x0, y0, x1, y1 float64, clr color.Color) error {
+func (i *Image) DrawLine(x0, y0, x1, y1 int, clr color.Color) error {
 	return i.DrawLines(&line{x0, y0, x1, y1, clr})
 }
 
diff --git a/internal/graphics/framebuffer.go b/internal/graphics/framebuffer.go
index 1872aa1b4..b61da912b 100644
--- a/internal/graphics/framebuffer.go
+++ b/internal/graphics/framebuffer.go
@@ -116,7 +116,7 @@ func (f *Framebuffer) DrawTexture(c *opengl.Context, t *Texture, quads TextureQu
 
 type Lines interface {
 	Len() int
-	Points(i int) (x0, y0, x1, y1 float64)
+	Points(i int) (x0, y0, x1, y1 int)
 	Color(i int) color.Color
 }
 
diff --git a/internal/graphics/internal/shader/draw.go b/internal/graphics/internal/shader/draw.go
index 27a37fda2..bf2e2c984 100644
--- a/internal/graphics/internal/shader/draw.go
+++ b/internal/graphics/internal/shader/draw.go
@@ -91,7 +91,7 @@ func DrawTexture(c *opengl.Context, texture opengl.Texture, projectionMatrix *[4
 
 type Lines interface {
 	Len() int
-	Points(i int) (x0, y0, x1, y1 float64)
+	Points(i int) (x0, y0, x1, y1 int)
 	Color(i int) color.Color
 }
 
diff --git a/shapes.go b/shapes.go
index fa4e34009..162338fff 100644
--- a/shapes.go
+++ b/shapes.go
@@ -21,13 +21,13 @@ import (
 // A Lines represents the set of lines.
 type Lines interface {
 	Len() int
-	Points(i int) (x0, y0, x1, y1 float64)
+	Points(i int) (x0, y0, x1, y1 int)
 	Color(i int) color.Color
 }
 
 type line struct {
-	x0, y0 float64
-	x1, y1 float64
+	x0, y0 int
+	x1, y1 int
 	color  color.Color
 }
 
@@ -35,7 +35,7 @@ func (l *line) Len() int {
 	return 1
 }
 
-func (l *line) Points(i int) (x0, y0, x1, y1 float64) {
+func (l *line) Points(i int) (x0, y0, x1, y1 int) {
 	return l.x0, l.y0, l.x1, l.y1
 }
 
@@ -51,9 +51,8 @@ func (r *rectsAsLines) Len() int {
 	return r.Rects.Len() * 4
 }
 
-func (r *rectsAsLines) Points(i int) (x0, y0, x1, y1 float64) {
-	ix, iy, iw, ih := r.Rects.Rect(i / 4)
-	x, y, w, h := float64(ix), float64(iy), float64(iw), float64(ih)
+func (r *rectsAsLines) Points(i int) (x0, y0, x1, y1 int) {
+	x, y, w, h := r.Rects.Rect(i / 4)
 	switch i % 4 {
 	case 0:
 		return x, y, x + w, y