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assets.go
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assets.go
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// Copyright 2017 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 assets
import (
"fmt"
"github.com/hajimehoshi/ebiten"
"github.com/hajimehoshi/rpgsnack-runtime/internal/data"
)
var theAssets = &assets{}
func Set(assets map[string][]byte, metadata map[string]*data.AssetMetadata) error {
theAssets.assets = assets
theAssets.metadata = metadata
theAssets.images = map[string]*ebiten.Image{}
return nil
}
type assets struct {
assets map[string][]byte
metadata map[string]*data.AssetMetadata
images map[string]*ebiten.Image
}
func Exists(path string) bool {
_, ok := theAssets.assets[path]
return ok
}
func GetResource(path string) []byte {
r, ok := theAssets.assets[path]
if !ok {
panic(fmt.Sprintf("assets: resource not found: %s", path))
}
return r
}
func GetMetadata(imageName string) *data.AssetMetadata {
path := "images/" + imageName + "_metadata.json"
m, ok := theAssets.metadata[path]
if !ok {
panic(fmt.Sprintf("assets: metadata not found: %s", path))
}
return m
}