Some basic ui things

This commit is contained in:
LittleSheep 2024-07-18 21:03:21 +08:00
parent 5414fbfac8
commit 1610584ce4
4 changed files with 108 additions and 0 deletions

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assets/fonts/NotoSans.ttf Executable file

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@ -0,0 +1,21 @@
package land
import "github.com/veandco/go-sdl2/sdl"
type BaseUIObject struct {
BaseObject
Position Vector2D
Size Vector2D
}
func (p *BaseUIObject) Draw(pen *sdl.Renderer) {
}
func (p *BaseUIObject) GetPosition() Vector2D {
return p.Position
}
func (p *BaseUIObject) GetSize() Vector2D {
return p.Size
}

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@ -0,0 +1,61 @@
package ui
import (
"git.solsynth.dev/highland/codingland/pkg/internal/land"
"github.com/veandco/go-sdl2/sdl"
"github.com/veandco/go-sdl2/ttf"
"log"
)
type ButtonObject struct {
land.BaseUIObject
Label string
Font *ttf.Font
OnClickEvent func(mousePos land.Vector2D)
}
func (p *ButtonObject) Draw(pen *sdl.Renderer) {
var borderWidth int32 = 2
pen.SetDrawColor(255, 255, 255, 255)
pen.FillRect(&sdl.Rect{
X: int32(p.Position.X),
Y: int32(p.Position.Y),
W: int32(p.Size.X),
H: int32(p.Size.Y),
})
pen.SetDrawColor(0, 0, 0, 255)
pen.FillRect(&sdl.Rect{
X: int32(p.Position.X) + borderWidth/2,
Y: int32(p.Position.Y) + borderWidth/2,
W: int32(p.Size.X) - borderWidth,
H: int32(p.Size.Y) - borderWidth,
})
surface, err := p.Font.RenderUTF8Blended(p.Label, sdl.Color{R: 255, G: 255, B: 255, A: 255})
if err != nil {
log.Printf("Failed to render text: %s", err)
return
}
defer surface.Free()
texture, err := pen.CreateTextureFromSurface(surface)
if err != nil {
log.Printf("Failed to create texture: %s", err)
return
}
defer texture.Destroy()
textRect := sdl.Rect{
X: int32(p.BaseUIObject.Position.X),
Y: int32(p.BaseUIObject.Position.Y),
W: surface.W,
H: surface.H,
}
pen.Copy(texture, nil, &textRect)
}
func (p *ButtonObject) OnClick(mousePos land.Vector2D) {
p.OnClickEvent(mousePos)
}

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@ -3,7 +3,9 @@ package main
import ( import (
"git.solsynth.dev/highland/codingland/pkg/internal/entities" "git.solsynth.dev/highland/codingland/pkg/internal/entities"
"git.solsynth.dev/highland/codingland/pkg/internal/land" "git.solsynth.dev/highland/codingland/pkg/internal/land"
"git.solsynth.dev/highland/codingland/pkg/internal/land/ui"
"git.solsynth.dev/highland/codingland/pkg/internal/tiles" "git.solsynth.dev/highland/codingland/pkg/internal/tiles"
"github.com/veandco/go-sdl2/ttf"
"log" "log"
"runtime" "runtime"
"time" "time"
@ -26,6 +28,11 @@ func main() {
} }
defer sdl.Quit() defer sdl.Quit()
if err := ttf.Init(); err != nil {
log.Fatalf("Failed to initialize SDL ttf: %s", err)
}
defer ttf.Quit()
window, err := sdl.CreateWindow("CodingLand", sdl.WINDOWPOS_UNDEFINED, sdl.WINDOWPOS_UNDEFINED, windowWidth, windowHeight, sdl.WINDOW_SHOWN) window, err := sdl.CreateWindow("CodingLand", sdl.WINDOWPOS_UNDEFINED, sdl.WINDOWPOS_UNDEFINED, windowWidth, windowHeight, sdl.WINDOW_SHOWN)
if err != nil { if err != nil {
log.Fatalf("Failed to create window: %s", err) log.Fatalf("Failed to create window: %s", err)
@ -38,7 +45,26 @@ func main() {
} }
defer renderer.Destroy() defer renderer.Destroy()
sdl.SetHint(sdl.HINT_RENDER_SCALE_QUALITY, "1")
font, err := ttf.OpenFont("assets/fonts/NotoSans.ttf", 12)
if err != nil {
log.Fatalf("Failed to open font: %s", err)
}
defer font.Close()
root := land.NewRootObject() root := land.NewRootObject()
root.AddChild(&ui.ButtonObject{
BaseUIObject: land.BaseUIObject{
Position: land.Vector2D{X: windowWidth/2 - 60, Y: windowHeight/2 - 25},
Size: land.Vector2D{X: 120, Y: 50},
},
Label: "Hello, World!",
Font: font,
OnClickEvent: func(_ land.Vector2D) {
sdl.ShowSimpleMessageBox(sdl.MESSAGEBOX_INFORMATION, "You clicked me!", "你惊扰了古希腊掌控按钮的神", window)
},
})
root.AddChild(&entities.Player{ root.AddChild(&entities.Player{
Position: land.Vector2D{X: windowWidth/2 - 25, Y: windowHeight/2 - 25}, Position: land.Vector2D{X: windowWidth/2 - 25, Y: windowHeight/2 - 25},
Size: land.Vector2D{X: 50, Y: 50}, Size: land.Vector2D{X: 50, Y: 50},