mirror of
https://github.com/hajimehoshi/ebiten.git
synced 2024-09-21 22:02:23 +02:00
101 lines
2.0 KiB
Go
101 lines
2.0 KiB
Go
/*
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Copyright 2014 Hajime Hoshi
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package blocks
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import (
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"github.com/hajimehoshi/ebiten"
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"sync"
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)
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type Size struct {
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Width int
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Height int
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}
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// TODO: Should they be global??
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var texturePaths = map[string]string{}
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var renderTargetSizes = map[string]Size{}
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const ScreenWidth = 256
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const ScreenHeight = 240
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type GameState struct {
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SceneManager *SceneManager
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Input *Input
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}
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type Game struct {
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once sync.Once
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sceneManager *SceneManager
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input *Input
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textures *Textures
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}
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func NewGame() *Game {
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game := &Game{
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sceneManager: NewSceneManager(NewTitleScene()),
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input: NewInput(),
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}
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return game
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}
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func (game *Game) isInitialized() bool {
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if game.textures == nil {
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return false
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}
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for name := range texturePaths {
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if !game.textures.Has(name) {
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return false
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}
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}
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for name := range renderTargetSizes {
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if !game.textures.Has(name) {
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return false
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}
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}
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return true
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}
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func (game *Game) Update() error {
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game.once.Do(func() {
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game.textures = NewTextures()
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for name, path := range texturePaths {
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game.textures.RequestTexture(name, path)
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}
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for name, size := range renderTargetSizes {
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game.textures.RequestRenderTarget(name, size)
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}
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})
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if !game.isInitialized() {
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return nil
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}
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game.input.Update()
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game.sceneManager.Update(&GameState{
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SceneManager: game.sceneManager,
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Input: game.input,
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})
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return nil
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}
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func (game *Game) Draw(g ebiten.GraphicsContext) error {
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if !game.isInitialized() {
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return nil
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}
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game.sceneManager.Draw(g, game.textures)
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return nil
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}
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