Grid of particles that drops down and gets accellerated with gravity and scaled with a time increment(to choose step resolution)

main.go

@@ -1,19 +1,62 @@
 package main
 
-import rl "github.com/gen2brain/raylib-go/raylib"
+import (
+	"fmt"
+	"time"
+
+	rl "github.com/gen2brain/raylib-go/raylib"
+)
+
+const MAXPOINTS = 100
 
 func main() {
-	rl.InitWindow(800, 450, "raylib [core] example - basic window")
+	rl.InitWindow(1200, 800, "raylib [core] example - basic window")
 	defer rl.CloseWindow()
 
 	rl.SetTargetFPS(60)
 
-	for !rl.WindowShouldClose() {
-		rl.BeginDrawing()
+	rl.BeginDrawing()
+	rl.WaitTime(1)
+	rl.ClearBackground(rl.RayWhite)
+	rl.DrawText("Congrats! You created your first window!", 190, 200, 20, rl.LightGray)
 
-		rl.ClearBackground(rl.RayWhite)
-		rl.DrawText("Congrats! You created your first window!", 190, 200, 20, rl.LightGray)
+	rl.EndDrawing()
 
-		rl.EndDrawing()
+	var particleWidth float32 = 200
+	var particleHeight float32 = 200
+	var particleColumnCount int = 10
+	var particleRowCount int = MAXPOINTS / particleColumnCount
+	var particleRadius float32 = 10
+	var particleColor rl.Color = rl.Black
+	var particleLeftCornerPos rl.Vector2 = rl.Vector2{500, 300}
+	var gravity rl.Vector2 = rl.Vector2{0, 10}
+	//var stepSize float32 = 10
+	var particleSpeed rl.Vector2 = rl.Vector2{0, -100} //pixel pro zeitinkrement
+	var timeIncrement float32 = 0.1
+	var particleList = [MAXPOINTS]rl.Vector2{}
+
+	for y := 0; y < (particleColumnCount); y++ {
+		for x := 0; x < particleRowCount; x++ {
+			if (y == particleColumnCount) && (x >= MAXPOINTS%particleColumnCount) {
+				fmt.Println(y, x)
+			} else {
+				newParticle := rl.NewVector2(particleWidth*(float32(x)/float32(particleRowCount))+particleLeftCornerPos.X, particleHeight*(float32(y)/float32(particleColumnCount))+particleLeftCornerPos.Y)
+				particleList[y*particleRowCount+x] = newParticle
+			}
+		}
 	}
+	for j := float32(0); j < 20; {
+		rl.BeginDrawing()
+		time.Sleep(time.Duration(timeIncrement*100) * time.Millisecond)
+		for i := 0; i < MAXPOINTS; i++ {
+			rl.DrawCircleV(particleList[i], particleRadius, particleColor)
+			particleList[i] = rl.Vector2Add(particleList[i], rl.Vector2Scale(particleSpeed, timeIncrement))
+		}
+		rl.EndDrawing()
+		rl.ClearBackground(rl.RayWhite)
+		fmt.Println(particleList)
+		particleSpeed = rl.Vector2Add(particleSpeed, rl.Vector2Scale(gravity, timeIncrement))
+		j += timeIncrement
+	}
+
 }