92 lines
2 KiB
Go
92 lines
2 KiB
Go
package main
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import (
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ez "github.com/gen2brain/raylib-go/easings"
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rl "github.com/gen2brain/raylib-go/raylib"
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)
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var (
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playTime = float32(240)
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fps = int32(60)
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)
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const (
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recsW, recsH = 50, 50
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screenWidth = int32(800)
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screenHeight = int32(450)
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maxRecsX = int(screenWidth) / recsW
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maxRecsY = int(screenHeight) / recsH
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)
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func main() {
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rl.InitWindow(screenWidth, screenHeight, "raylib [shapes] example - easings rectangle array")
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var recs [maxRecsX * maxRecsY]rl.Rectangle
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for y := 0; y < maxRecsY; y++ {
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for x := 0; x < maxRecsX; x++ {
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recs[y*maxRecsX+x].X = float32(recsW/2 + recsW*float32(x))
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recs[y*maxRecsX+x].Y = float32(recsH/2 + recsH*float32(y))
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recs[y*maxRecsX+x].Width = float32(recsW)
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recs[y*maxRecsX+x].Height = float32(recsH)
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}
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}
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rotation := float32(0)
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frameCount := float32(0)
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state := 0
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rl.SetTargetFPS(fps)
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for !rl.WindowShouldClose() {
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if state == 0 {
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frameCount++
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for i := 0; i < maxRecsX*maxRecsY; i++ {
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recs[i].Height = float32(ez.LinearIn(frameCount, recsH, -recsH, playTime))
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recs[i].Width = float32(ez.LinearIn(frameCount, recsW, -recsW, playTime))
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if recs[i].Height < 0 {
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recs[i].Height = 0
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}
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if recs[i].Width < 0 {
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recs[i].Width = 0
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}
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if recs[i].Height == 0 && recs[i].Width == 0 {
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state = 1
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}
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rotation = float32(ez.LinearIn(frameCount, 0, 360, playTime))
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}
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} else if state == 1 && rl.IsKeyPressed(rl.KeySpace) {
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frameCount = 0
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for i := 0; i < maxRecsX*maxRecsY; i++ {
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recs[i].Height = float32(recsH)
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recs[i].Width = float32(recsW)
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}
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state = 0
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}
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rl.BeginDrawing()
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rl.ClearBackground(rl.RayWhite)
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if state == 0 {
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for i := 0; i < maxRecsX*maxRecsY; i++ {
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rl.DrawRectanglePro(recs[i], rl.NewVector2(recs[i].Width/2, recs[i].Height/2), rotation, rl.Red)
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}
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} else if state == 1 {
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txtlen := rl.MeasureText("SPACE to replay", 20)
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rl.DrawText("SPACE to replay", (screenWidth/2)-txtlen/2, 200, 20, rl.Black)
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}
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rl.EndDrawing()
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}
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rl.CloseWindow()
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}
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