thefish/alchemyst
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

colordance

Browse Source
This commit is contained in:
thefish
2019-10-31 00:55:51 +03:00
parent ffe658e90e
commit 8dd242b242
9 changed files with 185 additions and 86 deletions
Download Patch File Download Diff File Expand all files Collapse all files

29
engine/fov/basic/basic_raycasting.go
View File

@ -1,10 +1,13 @@
package basic
import (
"github.com/jcerise/gogue/gamemap"
"lab.zaar.be/thefish/alchemyst-go/engine/gamemap"
"lab.zaar.be/thefish/alchemyst-go/engine/types"
"math"
)
//fixme store separate FovMap, add method IsInMap to it
type FieldOfVision struct {
cosTable map[int]float64
sinTable map[int]float64
@ -31,15 +34,15 @@ func (f *FieldOfVision) SetTorchRadius(radius int) {
}
}
func (f *FieldOfVision) SetAllInvisible(gameMap *gamemap.Map) {
for x := 0; x < gameMap.Width; x++ {
for y := 0; y < gameMap.Height; y++ {
gameMap.Tiles[x][y].Visible = false
func (f *FieldOfVision) SetAllInvisible(level *gamemap.Level) {
for x := 0; x < level.W; x++ {
for y := 0; y < level.H; y++ {
level.Tiles[x][y].Visible = false
}
}
}
func (f *FieldOfVision) RayCast(playerX, playerY int, gameMap *gamemap.Map) {
func (f *FieldOfVision) RayCast(playerCoords types.Coords, level *gamemap.Level) {
// Cast out rays each degree in a 360 circle from the player. If a ray passes over a floor (does not block sight)
// tile, keep going, up to the maximum torch radius (view radius) of the player. If the ray intersects a wall
// (blocks sight), stop, as the player will not be able to see past that. Every visible tile will get the Visible
@ -50,11 +53,11 @@ func (f *FieldOfVision) RayCast(playerX, playerY int, gameMap *gamemap.Map) {
ax := f.sinTable[i]
ay := f.cosTable[i]
x := float64(playerX)
y := float64(playerY)
x := float64(playerCoords.X)
y := float64(playerCoords.Y)
// Mark the players current position as explored
tile := gameMap.Tiles[playerX][playerY]
tile := level.Tiles[playerCoords.X][playerCoords.Y]
tile.Explored = true
tile.Visible = true
@ -65,17 +68,17 @@ func (f *FieldOfVision) RayCast(playerX, playerY int, gameMap *gamemap.Map) {
roundedX := int(Round(x))
roundedY := int(Round(y))
if x < 0 || x > float64(gameMap.Width-1) || y < 0 || y > float64(gameMap.Height-1) {
if x < 0 || x > float64(level.W -1) || y < 0 || y > float64(level.H -1) {
// If the ray is cast outside of the gamemap, stop
break
}
tile := gameMap.Tiles[roundedX][roundedY]
tile := level.Tiles[roundedX][roundedY]
tile.Explored = true
tile.Visible = true
if gameMap.Tiles[roundedX][roundedY].BlocksSight == true {
if level.Tiles[roundedX][roundedY].BlocksSight == true {
// The ray hit a wall, go no further
break
}
@ -85,4 +88,4 @@ func (f *FieldOfVision) RayCast(playerX, playerY int, gameMap *gamemap.Map) {
func Round(f float64) float64 {
return math.Floor(f + .5)
}
}