ebiten/example/blocks/game.go
2014-12-05 22:16:58 +09:00

86 lines
1.7 KiB
Go

package blocks
import (
"github.com/hajimehoshi/ebiten/graphics"
"github.com/hajimehoshi/ebiten/ui"
_ "image/png"
)
type Size struct {
Width int
Height int
}
// TODO: Should they be global??
var texturePaths = map[string]string{}
var renderTargetSizes = map[string]Size{}
const ScreenWidth = 256
const ScreenHeight = 240
type GameState struct {
SceneManager *SceneManager
Input *Input
}
type Textures interface {
RequestTexture(name string, path string)
RequestRenderTarget(name string, size Size)
Has(name string) bool
GetTexture(name string) graphics.TextureId
GetRenderTarget(name string) graphics.RenderTargetId
}
type Game struct {
sceneManager *SceneManager
input *Input
textures Textures
}
func NewGame(textures Textures) *Game {
game := &Game{
sceneManager: NewSceneManager(NewTitleScene()),
input: NewInput(),
textures: textures,
}
for name, path := range texturePaths {
game.textures.RequestTexture(name, path)
}
for name, size := range renderTargetSizes {
game.textures.RequestRenderTarget(name, size)
}
return game
}
func (game *Game) isInitialized() bool {
for name, _ := range texturePaths {
if !game.textures.Has(name) {
return false
}
}
for name, _ := range renderTargetSizes {
if !game.textures.Has(name) {
return false
}
}
return true
}
func (game *Game) Update(state ui.InputState) {
if !game.isInitialized() {
return
}
game.input.Update(state.PressedKeys())
game.sceneManager.Update(&GameState{
SceneManager: game.sceneManager,
Input: game.input,
})
}
func (game *Game) Draw(context graphics.Context) {
if !game.isInitialized() {
return
}
game.sceneManager.Draw(context, game.textures)
}