mirror of
https://github.com/OpenDiablo2/OpenDiablo2
synced 2024-10-31 16:27:18 -04:00
e70378d627
* Scroll slowly in map test by holding shift * Increase draw distance up and down Avoid issues with long tiles popping in and out of view. (As long as camera is reasonably within bounds)
304 lines
10 KiB
Go
304 lines
10 KiB
Go
package d2mapengine
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import (
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"fmt"
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"image/color"
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"math"
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"math/rand"
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"strings"
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"github.com/OpenDiablo2/D2Shared/d2common/d2enum"
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"github.com/OpenDiablo2/D2Shared/d2helper"
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"github.com/OpenDiablo2/D2Shared/d2common/d2interface"
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"github.com/OpenDiablo2/OpenDiablo2/d2core"
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"github.com/OpenDiablo2/D2Shared/d2common"
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"github.com/OpenDiablo2/OpenDiablo2/d2audio"
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"github.com/hajimehoshi/ebiten"
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"github.com/hajimehoshi/ebiten/ebitenutil"
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)
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type RegionTile struct {
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tileX, tileY int // tile coordinates
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offX, offY int // world space coordinates of tile origin
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}
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type EngineRegion struct {
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Rect d2common.Rectangle
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Region *Region
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Tiles []RegionTile
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}
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type Engine struct {
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soundManager *d2audio.Manager
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gameState *d2core.GameState
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fileProvider d2interface.FileProvider
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regions []EngineRegion
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OffsetX float64
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OffsetY float64
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ShowTiles int
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Hero *d2core.Hero
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}
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func CreateMapEngine(gameState *d2core.GameState, soundManager *d2audio.Manager, fileProvider d2interface.FileProvider) *Engine {
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result := &Engine{
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gameState: gameState,
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soundManager: soundManager,
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fileProvider: fileProvider,
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regions: make([]EngineRegion, 0),
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}
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return result
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}
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func (v *Engine) GetRegion(regionIndex int) *EngineRegion {
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return &v.regions[regionIndex]
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}
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func (v *Engine) CenterCameraOn(x, y float64) {
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v.OffsetX = -(x - 400)
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v.OffsetY = -(y - 300)
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}
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func (v *Engine) GenerateMap(regionType d2enum.RegionIdType, levelPreset int, fileIndex int) {
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randomSource := rand.NewSource(v.gameState.Seed)
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region := LoadRegion(randomSource, regionType, levelPreset, v.fileProvider, fileIndex)
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fmt.Printf("Loading region: %v\n", region.RegionPath)
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v.regions = append(v.regions, EngineRegion{
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Rect: d2common.Rectangle{0, 0, int(region.TileWidth), int(region.TileHeight)},
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Region: region,
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})
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for i, _ := range v.regions {
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v.GenTiles(&v.regions[i])
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v.GenTilesCache(&v.regions[i])
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}
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}
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func (v *Engine) GenerateAct1Overworld() {
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v.soundManager.PlayBGM("/data/global/music/Act1/town1.wav") // TODO: Temp stuff here
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randomSource := rand.NewSource(v.gameState.Seed)
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region := LoadRegion(randomSource, d2enum.RegionAct1Town, 1, v.fileProvider, -1)
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v.regions = append(v.regions, EngineRegion{
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Rect: d2common.Rectangle{0, 0, int(region.TileWidth), int(region.TileHeight)},
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Region: region,
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})
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if strings.Contains(region.RegionPath, "E1") {
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region2 := LoadRegion(randomSource, d2enum.RegionAct1Town, 2, v.fileProvider, -1)
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v.regions = append(v.regions, EngineRegion{
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Rect: d2common.Rectangle{int(region.TileWidth - 1), 0, int(region2.TileWidth), int(region2.TileHeight)},
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Region: region2,
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})
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} else if strings.Contains(region.RegionPath, "S1") {
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region2 := LoadRegion(randomSource, d2enum.RegionAct1Town, 3, v.fileProvider, -1)
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v.regions = append(v.regions, EngineRegion{
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Rect: d2common.Rectangle{0, int(region.TileHeight - 1), int(region2.TileWidth), int(region2.TileHeight)},
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Region: region2,
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})
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}
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for i, _ := range v.regions {
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v.GenTiles(&v.regions[i])
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v.GenTilesCache(&v.regions[i])
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}
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sx, sy := d2helper.IsoToScreen(int(region.StartX), int(region.StartY), 0, 0)
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v.OffsetX = float64(sx) - 400
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v.OffsetY = float64(sy) - 300
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}
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func (v *Engine) GetRegionAt(x, y int) *EngineRegion {
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if v.regions == nil {
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return nil
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}
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for _, region := range v.regions {
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if !region.Rect.IsInRect(x, y) {
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continue
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}
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return ®ion
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}
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return nil
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}
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func (v *Engine) Render(target *ebiten.Image) {
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for _, region := range v.regions {
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v.RenderRegion(region, target)
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}
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}
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func (v *Engine) GenTiles(region *EngineRegion) {
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for y := 0; y < int(region.Region.TileHeight); y++ {
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offX := -((y + region.Rect.Top) * 80) + (region.Rect.Left * 80)
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offY := ((y + region.Rect.Top) * 40) + (region.Rect.Left * 40)
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for x := 0; x < int(region.Region.TileWidth); x++ {
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region.Tiles = append(region.Tiles, RegionTile{
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tileX: x,
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tileY: y,
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offX: offX,
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offY: offY,
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})
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offX += 80
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offY += 40
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}
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}
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}
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func (v *Engine) GenTilesCache(region *EngineRegion) {
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n := 0
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for tileIdx := range region.Tiles {
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t := ®ion.Tiles[tileIdx]
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if t.tileY < len(region.Region.DS1.Tiles) && t.tileX < len(region.Region.DS1.Tiles[t.tileY]) {
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tile := region.Region.DS1.Tiles[t.tileY][t.tileX]
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for i := range tile.Floors {
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if tile.Floors[i].Hidden || tile.Floors[i].Prop1 == 0 {
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continue
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}
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region.Region.generateFloorCache(tile.Floors[i])
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n++
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}
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for i, shadow := range tile.Shadows {
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if tile.Shadows[i].Hidden || tile.Shadows[i].Prop1 == 0 {
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continue
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}
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region.Region.generateShadowCache(shadow)
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n++
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}
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for i, wall := range tile.Walls {
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if tile.Walls[i].Hidden {
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continue
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}
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region.Region.generateWallCache(wall)
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n++
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}
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}
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}
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}
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func (v *Engine) RenderRegion(region EngineRegion, target *ebiten.Image) {
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for tileIdx := range region.Tiles {
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sx, sy := d2helper.IsoToScreen(region.Tiles[tileIdx].tileX+region.Rect.Left, region.Tiles[tileIdx].tileY+region.Rect.Top, int(v.OffsetX), int(v.OffsetY))
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if sx > -160 && sy > -380 && sx <= 880 && sy <= 1240 {
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v.RenderPass1(region.Region, region.Tiles[tileIdx].offX, region.Tiles[tileIdx].offY, region.Tiles[tileIdx].tileX, region.Tiles[tileIdx].tileY, target)
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if v.ShowTiles > 0 {
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v.DrawTileLines(region.Region, region.Tiles[tileIdx].offX, region.Tiles[tileIdx].offY, region.Tiles[tileIdx].tileX, region.Tiles[tileIdx].tileY, target)
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}
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}
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}
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for tileIdx := range region.Tiles {
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sx, sy := d2helper.IsoToScreen(region.Tiles[tileIdx].tileX+region.Rect.Left, region.Tiles[tileIdx].tileY+region.Rect.Top, int(v.OffsetX), int(v.OffsetY))
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if sx > -160 && sy > -380 && sx <= 880 && sy <= 1240 {
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v.RenderPass2(region.Region, region.Tiles[tileIdx].offX, region.Tiles[tileIdx].offY, region.Tiles[tileIdx].tileX, region.Tiles[tileIdx].tileY, target)
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}
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}
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for tileIdx := range region.Tiles {
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sx, sy := d2helper.IsoToScreen(region.Tiles[tileIdx].tileX+region.Rect.Left, region.Tiles[tileIdx].tileY+region.Rect.Top, int(v.OffsetX), int(v.OffsetY))
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if sx > -160 && sy > -380 && sx <= 880 && sy <= 1240 {
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v.RenderPass3(region.Region, region.Tiles[tileIdx].offX, region.Tiles[tileIdx].offY, region.Tiles[tileIdx].tileX, region.Tiles[tileIdx].tileY, target)
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}
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}
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}
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func (v *Engine) RenderPass1(region *Region, offX, offY, x, y int, target *ebiten.Image) {
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tile := region.DS1.Tiles[y][x]
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// Draw lower walls
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for i := range tile.Walls {
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if tile.Walls[i].Orientation <= 15 {
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continue
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}
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if tile.Walls[i].Hidden || tile.Walls[i].Orientation == 10 || tile.Walls[i].Orientation == 11 || tile.Walls[i].Orientation == 0 {
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continue
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}
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region.RenderTile(offX+int(v.OffsetX), offY+int(v.OffsetY), x, y, d2enum.RegionLayerTypeWalls, i, target)
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}
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for i := range tile.Floors {
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if tile.Floors[i].Hidden || tile.Floors[i].Prop1 == 0 {
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continue
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}
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region.RenderTile(offX+int(v.OffsetX), offY+int(v.OffsetY), x, y, d2enum.RegionLayerTypeFloors, i, target)
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}
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for i := range tile.Shadows {
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if tile.Shadows[i].Hidden || tile.Shadows[i].Prop1 == 0 {
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continue
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}
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region.RenderTile(offX+int(v.OffsetX), offY+int(v.OffsetY), x, y, d2enum.RegionLayerTypeShadows, i, target)
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}
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}
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func (v *Engine) RenderPass2(region *Region, offX, offY, x, y int, target *ebiten.Image) {
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tile := region.DS1.Tiles[y][x]
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// Draw upper walls
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for i := range tile.Walls {
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if tile.Walls[i].Orientation >= 15 {
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continue
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}
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if tile.Walls[i].Hidden || tile.Walls[i].Orientation == 10 || tile.Walls[i].Orientation == 11 || tile.Walls[i].Orientation == 0 {
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continue
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}
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region.RenderTile(offX+int(v.OffsetX), offY+int(v.OffsetY), x, y, d2enum.RegionLayerTypeWalls, i, target)
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}
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for _, obj := range region.AnimationEntities {
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if int(math.Floor(obj.LocationX)) == x && int(math.Floor(obj.LocationY)) == y {
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obj.Render(target, offX+int(v.OffsetX), offY+int(v.OffsetY))
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}
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}
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for _, npc := range region.NPCs {
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if int(math.Floor(npc.AnimatedEntity.LocationX)) == x && int(math.Floor(npc.AnimatedEntity.LocationY)) == y {
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npc.Render(target, offX+int(v.OffsetX), offY+int(v.OffsetY))
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}
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}
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if v.Hero != nil && int(v.Hero.AnimatedEntity.LocationX) == x && int(v.Hero.AnimatedEntity.LocationY) == y {
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v.Hero.Render(target, offX+int(v.OffsetX), offY+int(v.OffsetY))
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}
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}
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func (v *Engine) RenderPass3(region *Region, offX, offY, x, y int, target *ebiten.Image) {
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tile := region.DS1.Tiles[y][x]
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// Draw ceilings
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for i := range tile.Walls {
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if tile.Walls[i].Orientation != 15 {
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continue
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}
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region.RenderTile(offX+int(v.OffsetX), offY+int(v.OffsetY), x, y, d2enum.RegionLayerTypeWalls, i, target)
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}
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}
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func (v *Engine) DrawTileLines(region *Region, offX, offY, x, y int, target *ebiten.Image) {
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if v.ShowTiles > 0 {
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subtileColor := color.RGBA{80, 80, 255, 100}
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tileColor := color.RGBA{255, 255, 255, 255}
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ebitenutil.DrawLine(target, float64(offX)+v.OffsetX, float64(offY)+v.OffsetY, float64(offX)+v.OffsetX+80, float64(offY)+v.OffsetY+40, tileColor)
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ebitenutil.DrawLine(target, float64(offX)+v.OffsetX, float64(offY)+v.OffsetY, float64(offX)+v.OffsetX-80, float64(offY)+v.OffsetY+40, tileColor)
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coords := fmt.Sprintf("%v,%v", x, y)
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ebitenutil.DebugPrintAt(target, coords, offX+int(v.OffsetX)-10, offY+int(v.OffsetY)+10)
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if v.ShowTiles > 1 {
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for i := 1; i <= 4; i++ {
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x := (16 * i)
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y := (8 * i)
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ebitenutil.DrawLine(target, float64(offX-x)+v.OffsetX, float64(offY+y)+v.OffsetY,
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float64(offX-x)+v.OffsetX+80, float64(offY+y)+v.OffsetY+40, subtileColor)
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ebitenutil.DrawLine(target, float64(offX+x)+v.OffsetX, float64(offY+y)+v.OffsetY,
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float64(offX+x)+v.OffsetX-80, float64(offY+y)+v.OffsetY+40, subtileColor)
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}
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tile := region.DS1.Tiles[y][x]
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for i := range tile.Floors {
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floorSpec := fmt.Sprintf("f: %v-%v", tile.Floors[i].MainIndex, tile.Floors[i].SubIndex)
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ebitenutil.DebugPrintAt(target, floorSpec, offX+int(v.OffsetX)-20, offY+int(v.OffsetY)+10+((i+1)*14))
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}
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// wallSpec := fmt.Sprintf("w: %v-%v", tile.Walls[0].MainIndex, tile.Walls[0].SubIndex)
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// ebitenutil.DebugPrintAt(target, wallSpec, offX+int(v.OffsetX)-20, offY+int(v.OffsetY)+34)
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}
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}
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}
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