Update the examples

cmd/multicore/main.go

@@ -7,7 +7,6 @@ import (
 	"math/rand"
 	"os"
 	"runtime"
-	"time"
 
 	"github.com/veandco/go-sdl2/sdl"
 	"github.com/xyproto/pixelpusher"
@@ -86,8 +85,6 @@ func run() int {
 
 	texture.SetBlendMode(sdl.BLENDMODE_BLEND) // sdl.BLENDMODE_ADD is also possible
 
-	rand.Seed(time.Now().UnixNano())
-
 	var (
 		pixels = make([]uint32, width*height)
 		cores  = runtime.NumCPU()

cmd/redpixel/main.go

@@ -1,15 +1,17 @@
 package main
 
 import (
-	"github.com/xyproto/pixelpusher"
+	pp "github.com/xyproto/pixelpusher"
 )
 
-func onDraw(gfx *pixelpusher.Config) error {
-	// x, y, r, g, b
-	return pixelpusher.Plot(gfx, 0, 0, 255, 0, 0)
+func onDraw(canvas *pp.Canvas) error {
+	// x=0, y=0, red=255, green=0, blue=0
+	return pp.Plot(canvas, 0, 0, 255, 0, 0)
 }
 
 func main() {
-	gfx := pixelpusher.New("Red Pixel")
-	gfx.Run(onDraw, nil, nil, nil)
+	// The window title is "Red Pixel"
+	canvas := pp.New("Red Pixel")
+	// onDraw will be called whenever it is time to draw a frame
+	canvas.Run(onDraw, nil, nil, nil)
 }

cmd/simpledraw/main.go

@@ -3,13 +3,13 @@ package main
 import (
 	"errors"
 
-	"github.com/xyproto/pixelpusher"
+	pp "github.com/xyproto/pixelpusher"
 )
 
 var x, y = 160, 100
 
-func onDraw(gfx *pixelpusher.Config) error {
-	return pixelpusher.Plot(gfx, x, y, 255, 0, 0)
+func onDraw(canvas *pp.Canvas) error {
+	return pp.Plot(canvas, x, y, 255, 0, 0)
 }
 
 func onPress(left, right, up, down, space, enter, esc bool) error {
@@ -30,5 +30,5 @@ func onPress(left, right, up, down, space, enter, esc bool) error {
 }
 
 func main() {
-	pixelpusher.New("Simple Draw").Run(onDraw, onPress, nil, nil)
+	pp.New("Simple Draw").Run(onDraw, onPress, nil, nil)
 }