108 lines
2.7 KiB
Go
108 lines
2.7 KiB
Go
package mapgens
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import (
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"lab.zaar.be/thefish/alchemyst-go/engine/gamemap"
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"lab.zaar.be/thefish/alchemyst-go/engine/types"
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"lab.zaar.be/thefish/alchemyst-go/util"
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)
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//fixme move to config
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var minRoomSize = 3
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var maxRoomSize = 11
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var maxrooms = 100
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//fixme make closure to stack them
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func DefaultGen(l *gamemap.Level) *gamemap.Level {
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rng := util.NewRNG()
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//fill with walls
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for i := 0; i < l.W; i ++ {
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for j := 0; j < l.H; j++ {
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l.Tiles[i][j] = gamemap.NewWall()
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}
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}
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rooms := make([]*gamemap.Room, 0)
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for i := 0; i < maxrooms; i++ {
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newRoom := &gamemap.Room{
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Rect: types.NewRect(
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rng.Range(l.X, l.W),
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rng.Range(l.Y, l.H),
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rng.Range(minRoomSize, maxRoomSize),
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rng.Range(minRoomSize, maxRoomSize),
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)}
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newRoom.Center = types.Coords{newRoom.X + newRoom.W / 2, newRoom.Y + newRoom.H / 2}
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failed := false
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for _, otherRoom := range rooms {
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if otherRoom.Intersects(newRoom.Rect) {
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failed = true
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break
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}
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}
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if !failed {
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rooms = append(rooms, newRoom)
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}
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}
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fillage := types.RectFill{
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Top: func() *gamemap.Tile {return gamemap.NewWall()},
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Bottom: func() *gamemap.Tile {return gamemap.NewWall()},
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Left: func() *gamemap.Tile {return gamemap.NewWall()},
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Right: func() *gamemap.Tile {return gamemap.NewWall()},
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BottomLeft: func() *gamemap.Tile {return gamemap.NewWall()},
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BottomRight: func() *gamemap.Tile {return gamemap.NewWall()},
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TopLeft: func() *gamemap.Tile {return gamemap.NewWall()},
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TopRight: func() *gamemap.Tile {return gamemap.NewWall()},
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Body: func() *gamemap.Tile {return gamemap.NewFloor()},
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}
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for idx, room := range rooms {
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room.Blit(fillage, l)
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if idx > 0 {
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connectRooms(l, room, rooms[idx-1], fillage, rng.Range(0,1))
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}
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}
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return l
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}
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func connectRooms (l *gamemap.Level, room, otherRoom *gamemap.Room, fillage types.RectFill, toss int) {
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if toss == 0 {
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digHTunnel(l, room.Center.X,otherRoom.Center.X,room.Center.Y, fillage)
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digVTunnel(l, room.Center.Y,otherRoom.Center.Y,otherRoom.Center.X, fillage)
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} else {
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digVTunnel(l, room.Center.Y, otherRoom.Center.Y, room.Center.Y, fillage)
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digHTunnel(l, room.Center.X, otherRoom.Center.X, otherRoom.Center.Y, fillage)
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}
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}
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func digHTunnel(l *gamemap.Level, x1,x2,y int, fillage types.RectFill) {
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var start, finish int
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if x1 > x2 {
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start = x1
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finish = x2
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} else {
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start = x2
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finish = x1
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}
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for i := start; i <= finish; i++ {
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l.Tiles[i][y] = fillage.Body.(func() *gamemap.Tile)()
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}
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}
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func digVTunnel(l *gamemap.Level, y1,y2,x int, fillage types.RectFill) {
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var start, finish int
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if y1 > y2 {
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start = y1
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finish = y2
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} else {
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start = y2
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finish = y1
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}
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for i := start; i <= finish; i++ {
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l.Tiles[x][i] = fillage.Body.(func() *gamemap.Tile)()
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}
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}
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