func (self *Level) Generate() *core.Entity {
// A square arena with walls
self.volume = &volume.FunctionVolume{
func(x, y, z float32) float32 {
if y > 5 && (x > 3 && x < 47) && (z > 3 && z < 47) {
return -1
} else {
return 1
}
},
}
volumeMesh := volume.MarchingCubes(self.volume, math3d.Vector{50, 10, 50}, 0.5)
volumeMesh.Name = "Level Mesh"
self.entity = core.NewEntity()
self.entity.Name = "Level Geometry"
self.entity.AddComponent(&components.Visual{
Mesh: volumeMesh,
MaterialName: "only_color",
})
transform := components.GetTransform(self.entity)
transform.Position = math3d.Vector{-25, -10, -25}
return self.entity
}
func (self *TopDownTestScene) Setup() {
self.game.RegisterEntity(factories.SkyBox("stevecube", self.game.Camera))
self.levelVolume = &volume.FunctionVolume{
func(x, y, z float32) float32 {
if y > 5 && (x > 3 && x < 47) && (z > 3 && z < 47) {
return -1
} else {
return 1
}
},
}
volumeMesh := volume.MarchingCubes(self.levelVolume, math3d.Vector{50, 10, 50}, 0.5)
volumeMesh.Name = "Level Mesh"
self.levelEntity = core.NewEntity()
self.levelEntity.Name = "Level Geometry"
self.levelEntity.AddComponent(&components.Visual{
Mesh: volumeMesh,
MaterialName: "only_color",
})
self.game.RegisterEntity(self.levelEntity)
self.game.Camera.AddComponent(&components.Input{
Mapping: FPSMapping,
})
// Get the camera facing downwards
cameraTransform := components.GetTransform(self.game.Camera.Entity)
cameraTransform.Position = math3d.Vector{25, 10, 25}
cameraTransform.CurrentPitch = 90
cameraTransform.Speed = math3d.Vector{8, 8, 8}
cameraTransform.MoveRelativeToRotation = false
// Our unit we'll control
self.playerCube = core.NewEntityAt(math3d.Vector{25, 6, 25})
self.playerCube.Name = "The Player"
self.playerCube.AddComponent(&components.Visual{})
playerTransform := components.GetTransform(self.playerCube)
playerTransform.Scale = math3d.Vector{0.25, 0.5, 0.25}
playerTransform.Speed = math3d.Vector{3, 3, 3}
playerTransform.MoveRelativeToRotation = false
self.topDownCamera = NewTopDownCamera(self.game.Camera)
self.topDownCamera.SetTrackingHeight(5)
self.topDownCamera.TrackEntity(self.playerCube)
self.game.RegisterEntity(self.playerCube)
self.game.Keyboard.OnKey(input.KeySpace, func(event events.Event) { self.SwapInput(event) })
// Start by controlling the player unit. Game defaults to controlling the camera
self.SwapInput(events.Event{Pressed: true})
}
func (self *VolumeScene) rebuildVolume() {
log.Println("Marching cube size:", self.marchingCubeSize)
volumeMesh := volume.MarchingCubes(
self.cubeVolume, math3d.Vector{50, 50, 50}, self.marchingCubeSize)
volumeMesh.Name = fmt.Sprintf("CubeVolumeMesh[%.2f]", self.marchingCubeSize)
log.Printf("[%s] has %d verticies\n", volumeMesh.Name, len(volumeMesh.VertexList))
self.volumeEntity.RemoveComponent(components.VISUAL)
self.volumeEntity.AddComponent(&components.Visual{
Mesh: volumeMesh,
MaterialName: "only_color",
})
}