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|
package coreobjects
import (
"fmt"
settings "github.com/DegustatorPonos/RuinesOfRafdolon/Settings"
rl "github.com/gen2brain/raylib-go/raylib"
)
// The size of the font used in the overaly
const objectOverlayTextSize int32 = 12
// An offset of the overlay compared to the mouse position
const objectOveralyOffset float32 = 10
// An offset of the overlay compared to the mouse position
const objectOveralyPadding int32 = 3
// The color of the overlay text
var objectOverlayTextColor = rl.Black
// The color of the overlay background
var objectOverlayBackgroundColor = rl.LightGray
// An object loaded from the package. Impmiments GameObject interface
type DynamicObject struct {
PrototypeName string `json:"-"`
Position rl.Vector2
YLevelOffset float32
Textures []*TextureBlock
Colliders []*ColliderBlock
parentScene Scene
showTooltip bool
}
// The dynamic objects can contain multiple textures. This struct
// represents one of those parts
type TextureBlock struct {
Texture *rl.Texture2D
// The space occupied by the sprite in world relative to the base object position
Window *rl.Rectangle
// The base rectangle of the texture (calculated once in the initialization step)
baseRect *rl.Rectangle
}
// Inintializes the texture block for futher render
func (base *TextureBlock) init() {
base.baseRect = &rl.Rectangle{
X: 0,
Y: 0,
Height: float32(base.Texture.Height),
Width: float32(base.Texture.Width),
}
}
func (base *TextureBlock) draw(objPos *rl.Vector2) {
var targetWindow = rl.Rectangle {
X: base.Window.X + objPos.X,
Y: base.Window.Y + objPos.Y,
Width: base.Window.Width,
Height: base.Window.Height,
}
rl.DrawTexturePro(*base.Texture,
*base.baseRect,
targetWindow,
rl.Vector2Zero(),
0, rl.White)
}
type ColliderBlock struct {
Collider Collider
Offset rl.Vector2
}
func (base *DynamicObject) Init(manager *SceneManager) {
if manager.SelectedScene == nil {
panic("Failed to initialize a dynamic object: the scene was not selected")
}
base.parentScene = manager.SelectedScene
for _, v := range base.Textures {
v.init()
}
}
func (base *DynamicObject) Destroy() {
}
func (base *DynamicObject) Update() {
if settings.State.DrawColliders {
base.showTooltip = false
var mousePosition = base.parentScene.GetMousePosition()
for _, v := range base.Colliders {
if v.Collider.Intersects(mousePosition.X, mousePosition.Y) {
base.showTooltip = true
return
}
}
}
}
func (base *DynamicObject) drawOverlay() {
var mousePoint = base.parentScene.GetMousePosition()
var text = fmt.Sprintf("Proto: %s", base.PrototypeName)
var overlayPosX = mousePoint.X + objectOveralyOffset
var overlayPosY = mousePoint.Y
var size = rl.MeasureText(text, objectOverlayTextSize)
rl.DrawRectangle(
int32(overlayPosX),
int32(overlayPosY),
size + objectOveralyPadding * 2,
objectOverlayTextSize + objectOveralyPadding,
objectOverlayBackgroundColor)
rl.DrawText(string(text),
int32(overlayPosX) + objectOveralyPadding,
int32(overlayPosY),
objectOverlayTextSize,
objectOverlayTextColor)
}
func (base *DynamicObject) Draw() {
for _, v := range base.Textures {
v.draw(&base.Position)
}
if settings.State.DrawColliders {
for _, v := range base.Colliders {
v.Collider.Draw()
if base.showTooltip {
base.drawOverlay()
}
}
}
}
func (base *DynamicObject) MoveTo(x float32, y float32) {
base.Position = rl.Vector2 { X: x, Y: y }
for _, v := range base.Colliders {
v.Collider.MoveTo(x + v.Offset.X, y + v.Offset.Y)
}
}
func (base *DynamicObject) Clone() *DynamicObject {
var outp = DynamicObject {
PrototypeName: base.PrototypeName,
YLevelOffset: base.YLevelOffset,
Position: base.Position,
Textures: base.Textures,
Colliders: base.cloneColliders(),
}
return &outp
}
func (base *DynamicObject) cloneColliders() []*ColliderBlock {
var outp = make([]*ColliderBlock, len(base.Colliders))
for i, v := range base.Colliders {
outp[i] = &ColliderBlock {
Collider: v.Collider.Clone(),
Offset: v.Offset,
}
}
return outp
}
func (base *DynamicObject) GetColliders() []Collider {
var outp = make([]Collider, 0, len(base.Colliders))
for _, v := range base.Colliders {
outp = append(outp, v.Collider)
}
return outp
}
func (base *DynamicObject) GetYIndex() float32 {
return base.Position.Y + base.YLevelOffset
}
|
