noita-mapcap/bin/stitch/entity.go

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// Copyright (c) 2022 David Vogel
//
// This software is released under the MIT License.
// https://opensource.org/licenses/MIT
package main
import (
"image/color"
"github.com/tdewolff/canvas"
)
//var entityDisplayFontFamily = canvas.NewFontFamily("times")
//var entityDisplayFontFace *canvas.FontFace
var entityDisplayAreaDamageStyle = canvas.Style{
Fill: canvas.Paint{Color: color.RGBA{100, 0, 0, 100}},
Stroke: canvas.Paint{},
StrokeWidth: 1.0,
StrokeCapper: canvas.ButtCap,
StrokeJoiner: canvas.MiterJoin,
DashOffset: 0.0,
Dashes: []float64{},
FillRule: canvas.NonZero,
}
var entityDisplayMaterialAreaCheckerStyle = canvas.Style{
Fill: canvas.Paint{Color: color.RGBA{0, 0, 127, 127}},
Stroke: canvas.Paint{},
StrokeWidth: 1.0,
StrokeCapper: canvas.ButtCap,
StrokeJoiner: canvas.MiterJoin,
DashOffset: 0.0,
Dashes: []float64{},
FillRule: canvas.NonZero,
}
var entityDisplayTeleportStyle = canvas.Style{
Fill: canvas.Paint{Color: color.RGBA{0, 127, 0, 127}},
Stroke: canvas.Paint{},
StrokeWidth: 1.0,
StrokeCapper: canvas.ButtCap,
StrokeJoiner: canvas.MiterJoin,
DashOffset: 0.0,
Dashes: []float64{},
FillRule: canvas.NonZero,
}
var entityDisplayHitBoxStyle = canvas.Style{
Fill: canvas.Paint{Color: color.RGBA{64, 64, 0, 64}},
Stroke: canvas.Paint{Color: color.RGBA{0, 0, 0, 64}},
StrokeWidth: 1.0,
StrokeCapper: canvas.ButtCap,
StrokeJoiner: canvas.MiterJoin,
DashOffset: 0.0,
Dashes: []float64{},
FillRule: canvas.NonZero,
}
var entityDisplayCollisionTriggerStyle = canvas.Style{
Fill: canvas.Paint{Color: color.RGBA{0, 64, 64, 64}},
Stroke: canvas.Paint{Color: color.RGBA{0, 0, 0, 64}},
StrokeWidth: 1.0,
StrokeCapper: canvas.ButtCap,
StrokeJoiner: canvas.MiterJoin,
DashOffset: 0.0,
Dashes: []float64{},
FillRule: canvas.NonZero,
}
func init() {
//fontName := "NimbusRoman-Regular"
//if err := entityDisplayFontFamily.LoadLocalFont(fontName, canvas.FontRegular); err != nil {
// log.Printf("Couldn't load font %q: %v", fontName, err)
//}
//entityDisplayFontFace = entityDisplayFontFamily.Face(48.0, canvas.White, canvas.FontRegular, canvas.FontNormal)
}
type Entity struct {
Filename string `json:"filename"`
Transform EntityTransform `json:"transform"`
Children []Entity `json:"children"`
Components []Component `json:"components"`
Name string `json:"name"`
Tags []string `json:"tags"`
}
type EntityTransform struct {
X float32 `json:"x"`
Y float32 `json:"y"`
ScaleX float32 `json:"scaleX"`
ScaleY float32 `json:"scaleY"`
Rotation float32 `json:"rotation"`
}
type Component struct {
TypeName string `json:"typeName"`
Members map[string]any `json:"members"`
}
func (e Entity) Draw(c *canvas.Context) {
x, y := float64(e.Transform.X), float64(e.Transform.Y)
for _, component := range e.Components {
switch component.TypeName {
case "AreaDamageComponent": // Area damage like in cursed rock.
var aabbMinX, aabbMinY, aabbMaxX, aabbMaxY float64
if member, ok := component.Members["aabb_min"]; ok {
if aabbMin, ok := member.([]any); ok && len(aabbMin) == 2 {
aabbMinX, _ = aabbMin[0].(float64)
aabbMinY, _ = aabbMin[1].(float64)
}
}
if member, ok := component.Members["aabb_max"]; ok {
if aabbMax, ok := member.([]any); ok && len(aabbMax) == 2 {
aabbMaxX, _ = aabbMax[0].(float64)
aabbMaxY, _ = aabbMax[1].(float64)
}
}
if aabbMinX < aabbMaxX && aabbMinY < aabbMaxY {
c.Style = entityDisplayAreaDamageStyle
c.DrawPath(x+aabbMinX, y+aabbMinY, canvas.Rectangle(aabbMaxX-aabbMinX, aabbMaxY-aabbMinY))
}
if member, ok := component.Members["circle_radius"]; ok {
if radius, ok := member.(float64); ok && radius > 0 {
// Theoretically we need to clip the damage area to the intersection of the AABB and the circle, but meh.
// TODO: Clip the area to the intersection of the box and the circle
cx, cy := (aabbMinX+aabbMaxX)/2, (aabbMinY+aabbMaxY)/2
c.Style = entityDisplayAreaDamageStyle
c.DrawPath(x+cx, y+cy, canvas.Circle(radius))
}
}
case "MaterialAreaCheckerComponent": // Checks for materials in the given AABB.
var aabbMinX, aabbMinY, aabbMaxX, aabbMaxY float64
if member, ok := component.Members["area_aabb"]; ok {
if aabb, ok := member.([]any); ok && len(aabb) == 4 {
aabbMinX, _ = aabb[0].(float64)
aabbMinY, _ = aabb[1].(float64)
aabbMaxX, _ = aabb[2].(float64)
aabbMaxY, _ = aabb[3].(float64)
}
}
if aabbMinX < aabbMaxX && aabbMinY < aabbMaxY {
c.Style = entityDisplayMaterialAreaCheckerStyle
c.DrawPath(x+aabbMinX, y+aabbMinY, canvas.Rectangle(aabbMaxX-aabbMinX, aabbMaxY-aabbMinY))
}
case "TeleportComponent":
var aabbMinX, aabbMinY, aabbMaxX, aabbMaxY float64
if member, ok := component.Members["source_location_camera_aabb"]; ok {
if aabb, ok := member.([]any); ok && len(aabb) == 4 {
aabbMinX, _ = aabb[0].(float64)
aabbMinY, _ = aabb[1].(float64)
aabbMaxX, _ = aabb[2].(float64)
aabbMaxY, _ = aabb[3].(float64)
}
}
if aabbMinX < aabbMaxX && aabbMinY < aabbMaxY {
c.Style = entityDisplayTeleportStyle
c.DrawPath(x+aabbMinX, y+aabbMinY, canvas.Rectangle(aabbMaxX-aabbMinX, aabbMaxY-aabbMinY))
}
case "HitboxComponent": // General hit box component.
var aabbMinX, aabbMinY, aabbMaxX, aabbMaxY float64
if member, ok := component.Members["aabb_min_x"]; ok {
aabbMinX, _ = member.(float64)
}
if member, ok := component.Members["aabb_min_y"]; ok {
aabbMinY, _ = member.(float64)
}
if member, ok := component.Members["aabb_max_x"]; ok {
aabbMaxX, _ = member.(float64)
}
if member, ok := component.Members["aabb_max_y"]; ok {
aabbMaxY, _ = member.(float64)
}
if aabbMinX < aabbMaxX && aabbMinY < aabbMaxY {
c.Style = entityDisplayHitBoxStyle
c.DrawPath(x+aabbMinX, y+aabbMinY, canvas.Rectangle(aabbMaxX-aabbMinX, aabbMaxY-aabbMinY))
}
case "CollisionTriggerComponent": // Checks if another entity is inside the given radius and box with the given width and height.
var width, height float64
path := &canvas.Path{}
if member, ok := component.Members["width"]; ok {
width, _ = member.(float64)
}
if member, ok := component.Members["height"]; ok {
height, _ = member.(float64)
}
if width > 0 && height > 0 {
path = canvas.Rectangle(width, height).Translate(-width/2, -height/2)
}
// Theoretically we need to clip the area to the intersection of the box and the circle, but meh.
// TODO: Clip the area to the intersection of the box and the circle
//if member, ok := component.Members["radius"]; ok {
// if radius, ok := member.(float64); ok && radius > 0 {
// path = path.Append(canvas.Circle(radius))
// path.And()
// }
//}
if !path.Empty() {
c.Style = entityDisplayCollisionTriggerStyle
c.DrawPath(x, y, path)
}
}
}
c.SetFillColor(color.RGBA{255, 255, 255, 128})
c.SetStrokeColor(color.RGBA{255, 0, 0, 255})
c.DrawPath(x, y, canvas.Circle(3))
//text := canvas.NewTextLine(entityDisplayFontFace, fmt.Sprintf("%s\n%s", e.Name, e.Filename), canvas.Left)
//c.DrawText(x, y, text)
}