mirror of
https://github.com/hajimehoshi/ebiten.git
synced 2024-09-21 22:02:23 +02:00
84 lines
2.3 KiB
Go
84 lines
2.3 KiB
Go
/*
|
|
Copyright 2014 Hajime Hoshi
|
|
|
|
Licensed under the Apache License, Version 2.0 (the "License");
|
|
you may not use this file except in compliance with the License.
|
|
You may obtain a copy of the License at
|
|
|
|
http://www.apache.org/licenses/LICENSE-2.0
|
|
|
|
Unless required by applicable law or agreed to in writing, software
|
|
distributed under the License is distributed on an "AS IS" BASIS,
|
|
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
See the License for the specific language governing permissions and
|
|
limitations under the License.
|
|
*/
|
|
|
|
package blocks
|
|
|
|
import (
|
|
"github.com/hajimehoshi/ebiten"
|
|
"image/color"
|
|
)
|
|
|
|
func init() {
|
|
texturePaths["background"] = "images/blocks/background.png"
|
|
}
|
|
|
|
type TitleScene struct {
|
|
count int
|
|
}
|
|
|
|
func NewTitleScene() *TitleScene {
|
|
return &TitleScene{}
|
|
}
|
|
|
|
func (s *TitleScene) Update(state *GameState) {
|
|
s.count++
|
|
if state.Input.StateForKey(ebiten.KeySpace) == 1 {
|
|
state.SceneManager.GoTo(NewGameScene())
|
|
}
|
|
}
|
|
|
|
func (s *TitleScene) Draw(context ebiten.GraphicsContext, textures *Textures) {
|
|
drawTitleBackground(context, textures, s.count)
|
|
drawLogo(context, textures, "BLOCKS")
|
|
|
|
message := "PRESS SPACE TO START"
|
|
x := (ScreenWidth - textWidth(message)) / 2
|
|
y := ScreenHeight - 48
|
|
drawTextWithShadow(context, textures, message, x, y, 1, color.RGBA{0x80, 0, 0, 0xff})
|
|
}
|
|
|
|
func drawTitleBackground(context ebiten.GraphicsContext, textures *Textures, c int) {
|
|
const textureWidth = 32
|
|
const textureHeight = 32
|
|
|
|
backgroundTextureId := textures.GetTexture("background")
|
|
parts := []ebiten.TexturePart{}
|
|
for j := -1; j < ScreenHeight/textureHeight+1; j++ {
|
|
for i := 0; i < ScreenWidth/textureWidth+1; i++ {
|
|
parts = append(parts, ebiten.TexturePart{
|
|
LocationX: i * textureWidth,
|
|
LocationY: j * textureHeight,
|
|
Source: ebiten.Rect{0, 0, textureWidth, textureHeight},
|
|
})
|
|
}
|
|
}
|
|
|
|
dx := (-c / 4) % textureWidth
|
|
dy := (c / 4) % textureHeight
|
|
geo := ebiten.GeometryMatrixI()
|
|
geo.Translate(float64(dx), float64(dy))
|
|
clr := ebiten.ColorMatrixI()
|
|
context.Texture(backgroundTextureId).Draw(parts, geo, clr)
|
|
}
|
|
|
|
func drawLogo(context ebiten.GraphicsContext, textures *Textures, str string) {
|
|
scale := 4
|
|
textWidth := textWidth(str) * scale
|
|
x := (ScreenWidth - textWidth) / 2
|
|
y := 32
|
|
drawTextWithShadow(context, textures, str, x, y, scale, color.RGBA{0x00, 0x00, 0x80, 0xff})
|
|
}
|