- It applies various different things from multiple engo demos
- It demonstrates how one can load and render a TMX file created from the TileMap Editor
- It shows how to add a character entity
- It demonstrates how to animate the character and move it around
- It shows how to access different layers in the TileMap
- It demonstrates how to set different Z indices to create depth
These lines are key in this demo:
levelData := tmxResource.Levelto retrieve the level from the tmx resourcehero := scene.CreateHero( ...to create a character instancehero.ControlComponent = ControlComponent{ ...to add a control component to the characterfor _, tileLayer := range levelData.TileLayers { ...to access different tile layer of the TMX mapfor _, imageLayer := range levelData.ImageLayers { ...to access different image layers of the TMX mapfor _, objectLayer := range levelData.ObjectLayers { ...to access different object layers of the TMX maptile.RenderComponent.SetZIndex(3)to add a Z index and 'depth' to one layer
for _, tileLayer := range levelData.TileLayers {
for _, tileElement := range tileLayer.Tiles {
if tileElement.Image != nil {
tile := &Tile{BasicEntity: ecs.NewBasic()}
tile.RenderComponent = common.RenderComponent{
Drawable: tileElement,
Scale: engo.Point{1, 1},
}
tile.SpaceComponent = common.SpaceComponent{
Position: tileElement.Point,
Width: 0,
Height: 0,
}
if tileLayer.Name == "grass" {
tile.RenderComponent.SetZIndex(0)
}
if tileLayer.Name == "trees" {
tile.RenderComponent.SetZIndex(2)
}
tileComponents = append(tileComponents, tile)
}
}
}for _, imageLayer := range levelData.ImageLayers {
for _, imageElement := range imageLayer.Images {
if imageElement.Image != nil {
tile := &Tile{BasicEntity: ecs.NewBasic()}
tile.RenderComponent = common.RenderComponent{
Drawable: imageElement,
Scale: engo.Point{1, 1},
}
tile.SpaceComponent = common.SpaceComponent{
Position: imageElement.Point,
Width: 0,
Height: 0,
}
if imageLayer.Name == "clouds" {
tile.RenderComponent.SetZIndex(3)
}
tileComponents = append(tileComponents, tile)
}
}
}// Access Object Layers
for _, objectLayer := range levelData.ObjectLayers {
log.Println("This object layer is called " + objectLayer.Name)
// Do something with every regular Object
for _, object := range objectLayer.Objects {
log.Println("This object is called " + object.Name)
}
// Do something with every polyline Object
for _, polylineObject := range objectLayer.PolyObjects {
log.Println("This object is called " + polylineObject.Name)
}
}
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