func run() int { var window *sdl.Window var renderer *sdl.Renderer var points []sdl.Point var rect sdl.Rect var rects []sdl.Rect window, err := sdl.CreateWindow(winTitle, sdl.WINDOWPOS_UNDEFINED, sdl.WINDOWPOS_UNDEFINED, winWidth, winHeight, sdl.WINDOW_SHOWN) if err != nil { fmt.Fprintf(os.Stderr, "Failed to create window: %s\n", err) return 1 } defer window.Destroy() renderer, err = sdl.CreateRenderer(window, -1, sdl.RENDERER_ACCELERATED) if err != nil { fmt.Fprintf(os.Stderr, "Failed to create renderer: %s\n", err) return 2 } defer renderer.Destroy() renderer.Clear() renderer.SetDrawColor(255, 255, 255, 255) renderer.DrawPoint(150, 300) renderer.SetDrawColor(0, 0, 255, 255) renderer.DrawLine(0, 0, 200, 200) points = []sdl.Point{{0, 0}, {100, 300}, {100, 300}, {200, 0}} renderer.SetDrawColor(255, 255, 0, 255) renderer.DrawLines(points) rect = sdl.Rect{300, 0, 200, 200} renderer.SetDrawColor(255, 0, 0, 255) renderer.DrawRect(&rect) rects = []sdl.Rect{{400, 400, 100, 100}, {550, 350, 200, 200}} renderer.SetDrawColor(0, 255, 255, 255) renderer.DrawRects(rects) rect = sdl.Rect{250, 250, 200, 200} renderer.SetDrawColor(0, 255, 0, 255) renderer.FillRect(&rect) rects = []sdl.Rect{{500, 300, 100, 100}, {200, 300, 200, 200}} renderer.SetDrawColor(255, 0, 255, 255) renderer.FillRects(rects) renderer.Present() sdl.Delay(2000) return 0 }
func main() { var window *sdl.Window var renderer *sdl.Renderer var points []sdl.Point var rect sdl.Rect var rects []sdl.Rect window = sdl.CreateWindow(winTitle, sdl.WINDOWPOS_UNDEFINED, sdl.WINDOWPOS_UNDEFINED, winWidth, winHeight, sdl.WINDOW_SHOWN) if window == nil { fmt.Fprintf(os.Stderr, "Failed to create window: %s\n", sdl.GetError()) os.Exit(1) } renderer = sdl.CreateRenderer(window, -1, sdl.RENDERER_ACCELERATED) if renderer == nil { fmt.Fprintf(os.Stderr, "Failed to create renderer: %s\n", sdl.GetError()) os.Exit(2) } renderer.SetDrawColor(255, 255, 255, 255) renderer.DrawPoint(150, 300) renderer.SetDrawColor(0, 0, 255, 255) renderer.DrawLine(0, 0, 200, 200) points = []sdl.Point{{0, 0}, {100, 300}, {100, 300}, {200, 0}} renderer.SetDrawColor(255, 255, 0, 255) renderer.DrawLines(points) rect = sdl.Rect{300, 0, 200, 200} renderer.SetDrawColor(255, 0, 0, 255) renderer.DrawRect(&rect) rects = []sdl.Rect{{400, 400, 100, 100}, {550, 350, 200, 200}} renderer.SetDrawColor(0, 255, 255, 255) renderer.DrawRects(rects) rect = sdl.Rect{250, 250, 200, 200} renderer.SetDrawColor(0, 255, 0, 255) renderer.FillRect(&rect) rects = []sdl.Rect{{500, 300, 100, 100}, {200, 300, 200, 200}} renderer.SetDrawColor(255, 0, 255, 255) renderer.FillRects(rects) renderer.Present() sdl.Delay(2000) renderer.Destroy() window.Destroy() }
func DrawPath(r *sdl.Renderer, nodes []graph.Node) { for index, node := range nodes { if index != 0 { previousNode := nodes[index-1] startRoom := previousNode.(*grid.Room) endRoom := node.(*grid.Room) x1 := int32(startRoom.X) * pixelSize * roomSize y1 := int32(startRoom.Y) * pixelSize * roomSize x2 := int32(endRoom.X) * roomSize * pixelSize y2 := int32(endRoom.Y) * roomSize * pixelSize r.DrawLine(int(x1), int(y1), int(x2), int(y2)) } } }
func DrawGraph(r *sdl.Renderer, g *graph.Graph) { nodesDrawn := make(map[graph.Node]struct{}) g.EachAdjacencyList(func(n graph.Node, l []graph.Node) { for _, d := range l { _, drawn := nodesDrawn[d] if !drawn { startRoom := n.(*grid.Room) endRoom := d.(*grid.Room) x1 := int32(startRoom.X) * pixelSize * roomSize y1 := int32(startRoom.Y) * pixelSize * roomSize x2 := int32(endRoom.X) * roomSize * pixelSize y2 := int32(endRoom.Y) * roomSize * pixelSize r.DrawLine(int(x1), int(y1), int(x2), int(y2)) } } nodesDrawn[n] = struct{}{} }) }
func run() int { var window *sdl.Window var renderer *sdl.Renderer var points []sdl.Point var rect sdl.Rect var rects []sdl.Rect var err error sdl.Do(func() { window, err = sdl.CreateWindow(WindowTitle, sdl.WINDOWPOS_UNDEFINED, sdl.WINDOWPOS_UNDEFINED, WindowWidth, WindowHeight, sdl.WINDOW_SHOWN) }) if err != nil { fmt.Fprintf(os.Stderr, "Failed to create window: %s\n", err) return 1 } defer func() { sdl.Do(func() { window.Destroy() }) }() sdl.Do(func() { renderer, err = sdl.CreateRenderer(window, -1, sdl.RENDERER_ACCELERATED) }) if err != nil { fmt.Fprint(os.Stderr, "Failed to create renderer: %s\n", err) return 2 } sdl.Do(func() { renderer.Clear() }) defer func() { sdl.Do(func() { renderer.Destroy() }) }() go func() { println("goroutine: A") }() sdl.Do(func() { renderer.SetDrawColor(255, 255, 255, 255) renderer.DrawPoint(150, 300) println("queue: A") }) go func() { println("goroutine: B") }() sdl.Do(func() { renderer.SetDrawColor(0, 0, 255, 255) renderer.DrawLine(0, 0, 200, 200) println("queue: B") }) go func() { println("goroutine: C") }() sdl.Do(func() { points = []sdl.Point{{0, 0}, {100, 300}, {100, 300}, {200, 0}} renderer.SetDrawColor(255, 255, 0, 255) renderer.DrawLines(points) println("queue: C") }) go func() { println("goroutine: D") }() sdl.Do(func() { rect = sdl.Rect{300, 0, 200, 200} renderer.SetDrawColor(255, 0, 0, 255) renderer.DrawRect(&rect) println("queue: D") }) go func() { println("goroutine: E") }() sdl.Do(func() { rects = []sdl.Rect{{400, 400, 100, 100}, {550, 350, 200, 200}} renderer.SetDrawColor(0, 255, 255, 255) renderer.DrawRects(rects) println("queue: E") }) go func() { println("goroutine: F") }() sdl.Do(func() { rect = sdl.Rect{250, 250, 200, 200} renderer.SetDrawColor(0, 255, 0, 255) renderer.FillRect(&rect) println("queue: F") }) go func() { println("goroutine: G") }() sdl.Do(func() { rects = []sdl.Rect{{500, 300, 100, 100}, {200, 300, 200, 200}} renderer.SetDrawColor(255, 0, 255, 255) renderer.FillRects(rects) println("queue: G") }) go func() { println("goroutine: H") }() sdl.Do(func() { renderer.Present() println("queue: H") }) sdl.Do(func() { sdl.Delay(2000) }) return 0 }