func main() {
window, renderer = tools.Start("planets", int(SCREEN_W), int(SCREEN_H))
wideView := tools.ViewBox{tools.Vector{-SCREEN_SCALE / 2 / float64(SCREEN_H) * float64(SCREEN_W),
-SCREEN_SCALE / 2},
SCREEN_SCALE / float64(SCREEN_H) * float64(SCREEN_W),
SCREEN_SCALE}
defer window.Destroy()
defer renderer.Destroy()
sprite = tools.LoadTextureTransparent(renderer, "resources/sprites.png", 0, 0xFF, 0xFF)
bodies := []*tools.Body{&Sun, &Earth, &Mars, &Ecc}
quit := false
curView := &wideView
for !quit {
for e := sdl.PollEvent(); e != nil; e = sdl.PollEvent() {
switch t := e.(type) {
case *sdl.QuitEvent:
quit = true
case *sdl.KeyDownEvent:
switch t.Keysym.Sym {
case sdl.K_UP:
auto := tools.GetAutoView(
[]tools.Vector{
bodies[0].Position,
bodies[1].Position},
SCREEN_RATIO)
curView = &auto
case sdl.K_DOWN:
curView = &wideView
case sdl.K_q:
quit = true
}
// fmt.Println("View:", curView)
}
}
// Draw background
renderer.SetDrawColor(0xFF, 0xFF, 0xFF, 0xFF)
renderer.Clear()
renderer.SetDrawColor(0, 0, 0, 0xFF)
tools.UpdateBodiesSeconds(bodies, 60*60*24*7)
DrawBodies(bodies, *curView)
renderer.Present()
//fmt.Println(earth.Position, sun.Position)
}
}
func main() {
window, renderer = tools.Start("flip", int(W), int(H))
defer window.Destroy()
defer renderer.Destroy()
arrow := tools.LoadTexture(renderer, "resources/arrow.png")
back := tools.LoadTexture(renderer, "resources/background.png")
angle := 0.0
var flip = sdl.RendererFlip(sdl.FLIP_NONE)
quit := false
for !quit {
for e := sdl.PollEvent(); e != nil; e = sdl.PollEvent() {
switch t := e.(type) {
case *sdl.QuitEvent:
quit = true
case *sdl.KeyDownEvent:
switch t.Keysym.Sym {
case sdl.K_LEFT:
angle += 30.0
case sdl.K_RIGHT:
angle -= 30.0
case sdl.K_q:
flip ^= sdl.FLIP_HORIZONTAL
case sdl.K_w:
flip ^= sdl.FLIP_VERTICAL
}
}
}
renderer.SetDrawColor(0xFF, 0xFF, 0xFF, 0xFF)
renderer.Clear()
renderer.Copy(back, nil, nil)
renderer.CopyEx(arrow, nil, &sdl.Rect{300, 400, 100, 100},
angle, &sdl.Point{50, 50}, flip)
renderer.Present()
}
}