Northbrook/ColouringApp
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Draw only when in canvas

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This commit is contained in:
Michał 2024-01-24 11:36:36 +00:00
parent 65ec70dd4a
commit 832fcdc7c4
1 changed files with 80 additions and 29 deletions
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109
scenes/drawing.go
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@ -2,10 +2,16 @@ package scenes
import (
"ColouringApp/application"
"fmt"
gui "github.com/gen2brain/raylib-go/raygui"
raylib "github.com/gen2brain/raylib-go/raylib"
)
const (
ModeDrawing = iota
ModeLine
)
type stroke struct {
Color raylib.Color
Size float32
@ -14,16 +20,23 @@ type stroke struct {
func Drawing() {
var (
canvasSize = raylib.NewVector2(500, 430)
canvas = raylib.LoadRenderTexture(int32(canvasSize.X), int32(canvasSize.Y))
canvasSize = raylib.NewVector2(500, 430)
canvas = raylib.LoadRenderTexture(int32(canvasSize.X), int32(canvasSize.Y))
sidePanelWidth float32 = 300
sidePanelRelativeX = application.WindowWidth - int32(sidePanelWidth)
drawing = false
//drawingMode = ModeDrawing
currentStroke = stroke{}
strokes = []stroke{currentStroke}
undoneStrokes = []stroke{}
brushSize float32 = 10
colourPickerVal = raylib.Orange
colourPickerHeight float32 = 200
brushSize float32 = 10
)
refreshCanvas := func() {
@ -46,63 +59,86 @@ func Drawing() {
refreshCanvas()
for !application.ShouldQuit {
application.ShouldQuit = raylib.WindowShouldClose()
if application.CurrentScene != application.SceneDrawing {
break
}
if raylib.IsWindowResized() {
application.WindowWidth = int32(raylib.GetScreenWidth())
application.WindowHeight = int32(raylib.GetScreenHeight())
// DEFAULT
{
application.ShouldQuit = raylib.WindowShouldClose()
if application.CurrentScene != application.SceneDrawing {
break
}
if raylib.IsWindowResized() {
application.WindowWidth = int32(raylib.GetScreenWidth())
application.WindowHeight = int32(raylib.GetScreenHeight())
sidePanelRelativeX = application.WindowWidth - int32(sidePanelWidth)
}
}
// INPUT
{
if raylib.IsMouseButtonPressed(raylib.MouseLeftButton) {
currentStroke = stroke{
Color: colourPickerVal,
Size: brushSize,
drawing = false
if raylib.CheckCollisionPointRec(raylib.GetMousePosition(), raylib.NewRectangle(10, 10, canvasSize.X, canvasSize.Y)) {
drawing = true
currentStroke = stroke{
Color: colourPickerVal,
Size: brushSize,
}
}
}
if raylib.IsMouseButtonDown(raylib.MouseLeftButton) {
// if mouse is further than 5 pixels from last point, add it
var safeZone float32 = 1
if raylib.IsMouseButtonDown(raylib.MouseLeftButton) && drawing {
var safeZone float32 = 5
if len(currentStroke.Points) <= 1 {
currentStroke.Points = append(currentStroke.Points, raylib.GetMousePosition())
} else if raylib.Vector2Distance(currentStroke.Points[len(currentStroke.Points)-1], raylib.GetMousePosition()) > safeZone {
currentStroke.Points = append(currentStroke.Points, raylib.GetMousePosition())
}
//currentStroke.Points = append(currentStroke.Points, raylib.GetMousePosition())
}
if raylib.IsMouseButtonReleased(raylib.MouseLeftButton) && currentStroke.Points != nil {
drawing = false
strokes = append(strokes, currentStroke)
currentStroke = stroke{}
undoneStrokes = []stroke{}
refreshCanvas()
}
if raylib.IsKeyDown(raylib.KeyLeftControl) && raylib.IsKeyDown(raylib.KeyLeftShift) && raylib.IsKeyPressed(raylib.KeyZ) {
if len(undoneStrokes) > 0 {
if len(undoneStrokes) > 1 {
strokes = append(strokes, undoneStrokes[len(undoneStrokes)-1])
undoneStrokes = undoneStrokes[:len(undoneStrokes)-1]
}
refreshCanvas()
} else if raylib.IsKeyDown(raylib.KeyLeftControl) && raylib.IsKeyPressed(raylib.KeyZ) {
if len(strokes) > 0 {
if len(strokes) > 1 {
undoneStrokes = append(undoneStrokes, strokes[len(strokes)-1])
strokes = strokes[:len(strokes)-1]
}
refreshCanvas()
}
}
// UPDATE
{
if drawing {
gui.SetState(gui.STATE_DISABLED)
} else {
gui.SetState(gui.STATE_NORMAL)
}
}
// DRAW
raylib.BeginDrawing()
{
raylib.ClearBackground(raylib.White)
gui.Grid(raylib.NewRectangle(0, 0, float32(application.WindowWidth), float32(application.WindowHeight)), "", 30, 1, &raylib.Vector2{})
// Canvas stuff
raylib.DrawRectangle(20, 20, int32(canvasSize.X), int32(canvasSize.Y), raylib.Fade(raylib.Black, 0.3))
raylib.BeginScissorMode(10, 10, int32(canvasSize.X), int32(canvasSize.Y))
{
raylib.DrawTexturePro(canvas.Texture, raylib.NewRectangle(0, 0, float32(canvas.Texture.Width), float32(-canvas.Texture.Height)), raylib.NewRectangle(10, 10, canvasSize.X, canvasSize.Y), raylib.Vector2{}, 0, raylib.White)
@ -116,17 +152,32 @@ func Drawing() {
raylib.DrawRectangleLines(10, 10, int32(canvasSize.X), int32(canvasSize.Y), raylib.Gray)
// UI stuff
if gui.Button(raylib.NewRectangle(float32(30+int32(canvasSize.X)), 10, 25, 25), gui.IconText(gui.ICON_CROSS, "")) {
application.CurrentScene = application.SceneTitle
}
if gui.Button(raylib.NewRectangle(float32(65+int32(canvasSize.X)), 10, 25, 25), gui.IconText(gui.ICON_FOLDER_SAVE, "")) {
}
raylib.BeginScissorMode(sidePanelRelativeX, 0, int32(sidePanelWidth), application.WindowHeight)
{
raylib.DrawRectangle(sidePanelRelativeX, 0, int32(sidePanelWidth), application.WindowHeight, raylib.Fade(raylib.White, 0.7))
colourPickerVal = gui.ColorPicker(raylib.NewRectangle(float32(30+int32(canvasSize.X)), 45, float32(application.WindowWidth)-float32(65+int32(canvasSize.X)), colourPickerHeight), "Color", colourPickerVal)
brushSize = gui.Slider(raylib.NewRectangle(float32(90+int32(canvasSize.X)), 65+colourPickerHeight, 200, 20), "Brush Size", "", brushSize, 1, 100)
if gui.Button(raylib.NewRectangle(float32(sidePanelRelativeX+10), 10, 25, 25), gui.IconText(gui.ICON_CROSS, "")) {
application.CurrentScene = application.SceneTitle
}
if gui.Button(raylib.NewRectangle(float32(sidePanelRelativeX+20+25), 10, 25, 25), gui.IconText(gui.ICON_FOLDER_SAVE, "")) {
}
raylib.DrawLine(20+int32(canvasSize.X), 10, 20+int32(canvasSize.X), 10+int32(canvasSize.Y), raylib.Gray)
raylib.DrawLine(30+int32(canvasSize.X), int32(55+colourPickerHeight), application.WindowWidth-10, int32(55+colourPickerHeight), raylib.Gray)
colourPickerVal = gui.ColorPicker(raylib.NewRectangle(float32(sidePanelRelativeX+10), 45, sidePanelWidth-40, colourPickerHeight), "Color", colourPickerVal)
brushSize = gui.Slider(raylib.NewRectangle(float32(sidePanelRelativeX+80), 65+colourPickerHeight, 200, 20), "Brush Size", "", brushSize, 1, 100)
}
raylib.EndScissorMode()
raylib.DrawRectangleLines(sidePanelRelativeX, 0, int32(sidePanelWidth), application.WindowHeight, raylib.Gray)
// Info
{
var text string
text = fmt.Sprintf("Strokes: %d | Stroke Points: %d", len(strokes), len(currentStroke.Points))
gui.StatusBar(raylib.NewRectangle(0, float32(application.WindowHeight-20), 200, 20), text)
text = fmt.Sprintf("Canvas Size: %dx%d", int32(canvasSize.X), int32(canvasSize.Y))
gui.StatusBar(raylib.NewRectangle(199, float32(application.WindowHeight-20), 200, 20), text)
}
}
raylib.EndDrawing()
}