From fd941a660c7758949f292a89310a4a270dc5cc63 Mon Sep 17 00:00:00 2001 From: Martin Ashby Date: Fri, 18 May 2018 23:50:21 +0100 Subject: Added the fake one back in --- FakeUnicorn.go | 94 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 94 insertions(+) create mode 100644 FakeUnicorn.go diff --git a/FakeUnicorn.go b/FakeUnicorn.go new file mode 100644 index 0000000..d282ba5 --- /dev/null +++ b/FakeUnicorn.go @@ -0,0 +1,94 @@ +package main + +import ( + "github.com/veandco/go-sdl2/sdl" +) + +type FakeUnicorn struct { + BaseUnicorn + displayWidth int32 + displayHeight int32 + window *sdl.Window + renderer *sdl.Renderer +} + +// NewFake ... +// Constructs a new fake unicorn out of paint and glue +func NewFake(width, height uint8) (*FakeUnicorn, error) { + if err := sdl.Init(sdl.INIT_EVERYTHING); err != nil { + return nil, err + } + + unicorn := &FakeUnicorn{ + BaseUnicorn{ + pixels: makePixels(width, height), + }, + 300, + 300, + nil, + nil, + } + if err := unicorn.createWindow(); err != nil { + unicorn.Close() + return nil, err + } + if err := unicorn.createRenderer(); err != nil { + unicorn.Close() + return nil, err + } + return unicorn, nil +} + +func (f *FakeUnicorn) createWindow() error { + window, err := sdl.CreateWindow("Fake Unicorn", + sdl.WINDOWPOS_UNDEFINED, + sdl.WINDOWPOS_UNDEFINED, + f.displayWidth, + f.displayHeight, + sdl.WINDOW_SHOWN) + f.window = window + return err +} + +func (f *FakeUnicorn) createRenderer() error { + renderer, err := sdl.CreateRenderer(f.window, -1, sdl.RENDERER_ACCELERATED) + f.renderer = renderer + return err +} + +func (f *FakeUnicorn) Close() error { + if f.window != nil { + f.window.Destroy() + } + if f.renderer != nil { + f.renderer.Destroy() + } + return nil +} + +func (f *FakeUnicorn) Show() { + width, height := f.GetWidth(), f.GetHeight() + for x := uint8(0); x < width; x++ { + for y := uint8(0); y < height; y++ { + r, g, b := rgb(f.pixels[x][y]) + if err := f.renderer.SetDrawColor(r, g, b, uint8(255)); err != nil { + panic(err) + } + cellWidth := f.displayWidth / int32(width) + cellHeight := f.displayHeight / int32(height) + if err := f.renderer.FillRect(&sdl.Rect{ + X: cellWidth * int32(x), + Y: f.displayHeight - (cellHeight * int32(y)) - cellHeight, // SDL Y coordinate is from the top + W: cellWidth, + H: cellHeight, + }); err != nil { + panic(err) + } + } + } + f.renderer.Present() +} + +func (f *FakeUnicorn) Off() { + f.Close() +} -- cgit v1.2.3-ZIG