104 lines
2.4 KiB
Go
104 lines
2.4 KiB
Go
package main
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import (
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"math"
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rl "github.com/gen2brain/raylib-go/raylib"
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)
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type magnet struct {
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pos rl.Vector2
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color rl.Color
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}
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type state struct {
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windowHeight int32
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windowWidth int32
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magnetsDistance float32
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}
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func main() {
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state := state{
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windowWidth: 800,
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windowHeight: 450,
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}
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rl.InitWindow(
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state.windowWidth, state.windowHeight,
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"raylib [core] example - basic window",
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)
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defer rl.CloseWindow()
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rl.SetTargetFPS(60)
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const RADIUS = 10
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magnets := []magnet{
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{
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// pos: rl.Vector2{X: 100, Y: 100},
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color: rl.NewColor(255, 0, 0, 255),
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},
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{
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// pos: rl.Vector2{X: 200, Y: 200},
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color: rl.NewColor(0, 255, 0, 255),
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},
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{
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// pos: rl.Vector2{X: 200, Y: 100},
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color: rl.NewColor(0, 0, 255, 255),
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},
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}
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// pocisionar imas no meio da tela
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xCenter := float32(state.windowWidth / 2)
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yCenter := float32(state.windowHeight / 2)
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magnetsDistance := float32(100)
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for i := range magnets {
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angle := 2.0 * math.Pi * float64(i) / float64(len(magnets))
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magnets[i].pos = rl.Vector2{
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X: float32(math.Cos(angle)) * magnetsDistance + xCenter,
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Y: float32(math.Sin(angle)) * magnetsDistance + yCenter,
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}
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}
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verticalGrids := 10
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horizontalGrids := 10
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grid := make([][]rl.Color, verticalGrids)
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for i := range grid {
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grid[i] = make([]rl.Color, horizontalGrids)
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for j := range grid[i] {
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grid[i][j] = rl.NewColor(10, 10, 10, 255)
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}
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}
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ball := rl.Vector2{0, 0}
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gridSize := rl.Vector2{
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X: float32(state.windowWidth / int32(verticalGrids)),
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Y: float32(state.windowHeight / int32(horizontalGrids)),
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}
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for !rl.WindowShouldClose() {
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rl.BeginDrawing()
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rl.ClearBackground(rl.Black)
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for y := range grid {
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for x := range grid[y] {
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pos := rl.Vector2{
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X: gridSize.X * float32(x),
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Y: gridSize.Y * float32(y),
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}
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rl.DrawRectangleV(pos, gridSize, grid[y][x])
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}
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}
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for i := range magnets {
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rl.DrawCircleV(magnets[i].pos, RADIUS, magnets[i].color)
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}
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rl.DrawCircleV(ball, RADIUS/2, rl.NewColor(100, 100, 100, 255))
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rl.EndDrawing()
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}
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}
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