precomputed shade algo, viewport basic render

engine/fov/precomputed_shade/precomputed_shade_test.go

@@ -0,0 +1,85 @@
+package precomputed_shade
+
+import (
+	"fmt"
+	"lab.zaar.be/thefish/alchemyst-go/engine/gamemap"
+	"lab.zaar.be/thefish/alchemyst-go/engine/types"
+	"testing"
+)
+
+func TestPsDistance(t *testing.T) {
+	iterCoords := types.Coords{0, 0}
+
+	fmt.Printf("\n dto: \t %v", iterCoords.DistanceTo(types.Coords{0, 1}))
+	fmt.Printf("\n dto: \t %v", iterCoords.DistanceTo(types.Coords{0, 5}))
+	fmt.Printf("\n dto: \t %v", iterCoords.DistanceTo(types.Coords{3, 3}))
+	fmt.Printf("\n dto: \t %v", iterCoords.DistanceTo(types.Coords{100, 0}))
+}
+
+func TestPrecompShade(t *testing.T) {
+	ppFov := NewPrecomputedShade(15)
+	_ = ppFov
+	t.Log("ok")
+
+	//level := gamemap.NewLevel(util.ClientCtx{}, "test", 1)
+
+	level := &gamemap.Level{
+		Name:  "test1",
+		Depth: 1,
+		Rect:  types.NewRect(0, 0, 20, 20),
+	}
+
+	level.Tiles = make([][]*gamemap.Tile, level.W)
+	for i := range level.Tiles {
+		level.Tiles[i] = make([]*gamemap.Tile, level.H)
+	}
+
+	var tile func() (*gamemap.Tile)
+
+	for x := 0; x < level.W; x++ {
+		for y := 0; y < level.H; y++ {
+			if x == 0 || y == 0 || x == (level.W-1) || y == (level.H-1) {
+				tile = gamemap.NewWall
+			} else {
+				tile = gamemap.NewFloor
+			}
+			level.Tiles[x][y] = tile()
+		}
+	}
+
+	playerCoords := types.Coords{10, 10}
+
+	level.Tiles[8][12] = gamemap.NewWall()
+	level.Tiles[10][8] = gamemap.NewWall()
+
+	level.Tiles[7][9] = gamemap.NewWall()
+	level.Tiles[7][11] = gamemap.NewWall()
+	level.Tiles[5][10] = gamemap.NewWall()
+
+	level.Tiles[10][11] = gamemap.NewWall()
+	level.Tiles[11][10] = gamemap.NewWall()
+
+	ppFov.ComputeFov(level, playerCoords, 15)
+
+	fmt.Printf("\n\n")
+
+	var render = func(x, y int) string {
+		if playerCoords.X == x && playerCoords.Y == y {
+			return "@"
+		}
+		result := level.Tiles[x][y].Char
+		if !level.Tiles[x][y].Visible {
+			result = "?"
+		}
+		return result
+	}
+
+	for y := 0; y < level.H; y++ {
+		for x := 0; x < level.W; x++ {
+
+			fmt.Printf("%s", render(x, y))
+		}
+		fmt.Printf("\n")
+	}
+
+}