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add core examples

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This commit is contained in:
unkl nik 2023-11-12 22:12:17 +02:00
parent 1a9e976d4c
commit 34665bd091
3 changed files with 310 additions and 0 deletions
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128
examples/core/2d_camera_splitscreen/main.go Normal file
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package main
import (
"fmt"
rl "github.com/gen2brain/raylib-go/raylib"
)
var (
screenW = int32(800)
screenH = int32(440)
playerSize = float32(40)
cam1, cam2 rl.Camera2D
)
func main() {
rl.InitWindow(screenW, screenH, "raylib [core] example - 2d camera split screen")
player1 := rl.NewRectangle(200, 200, playerSize, playerSize)
player2 := rl.NewRectangle(250, 200, playerSize, playerSize)
cam1.Target = rl.NewVector2(player1.X, player1.Y)
cam1.Offset = rl.NewVector2(200, 200)
cam1.Rotation = 0
cam1.Zoom = 1
cam2 = cam1
cam2.Target = rl.NewVector2(player2.X, player2.Y)
screenCam1 := rl.LoadRenderTexture(screenW/2, screenH)
screenCam2 := rl.LoadRenderTexture(screenW/2, screenH)
splitScreenRec := rl.NewRectangle(0, 0, float32(screenCam1.Texture.Width), -float32(screenCam1.Texture.Height))
rl.SetTargetFPS(60)
for !rl.WindowShouldClose() {
if rl.IsKeyDown(rl.KeyS) {
player1.Y += 3
} else if rl.IsKeyDown(rl.KeyW) {
player1.Y -= 3
}
if rl.IsKeyDown(rl.KeyD) {
player1.X += 3
} else if rl.IsKeyDown(rl.KeyA) {
player1.X -= 3
}
if rl.IsKeyDown(rl.KeyUp) {
player2.Y -= 3
} else if rl.IsKeyDown(rl.KeyDown) {
player2.Y += 3
}
if rl.IsKeyDown(rl.KeyRight) {
player2.X += 3
} else if rl.IsKeyDown(rl.KeyLeft) {
player2.X -= 3
}
cam1.Target = rl.NewVector2(player1.X, player1.Y)
cam2.Target = rl.NewVector2(player2.X, player2.Y)
rl.BeginTextureMode(screenCam1)
rl.ClearBackground(rl.RayWhite)
rl.BeginMode2D(cam1)
for i := 0; i < int(screenW/int32(playerSize))+1; i++ {
rl.DrawLineV(rl.NewVector2(playerSize*float32(i), 0), rl.NewVector2(playerSize*float32(i), float32(screenH)), rl.LightGray)
}
for i := 0; i < int(screenH/int32(playerSize))+1; i++ {
rl.DrawLineV(rl.NewVector2(0, playerSize*float32(i)), rl.NewVector2(float32(screenW), playerSize*float32(i)), rl.LightGray)
}
for i := 0; i < int(screenW/int32(playerSize)); i++ {
for j := 0; j < int(screenH/int32(playerSize)); j++ {
rl.DrawText("["+fmt.Sprint(i)+","+fmt.Sprint(j)+"]", 10+int32(playerSize*float32(i)), 15+int32(playerSize*float32(j)), 10, rl.LightGray)
}
}
rl.DrawRectangleRec(player1, rl.Red)
rl.DrawRectangleRec(player2, rl.Blue)
rl.EndMode2D()
rl.DrawRectangle(0, 0, screenW/2, 30, rl.Fade(rl.RayWhite, 0.6))
rl.DrawText("PLAYER 1 WASD KEYS", 10, 10, 10, rl.Maroon)
rl.EndTextureMode()
rl.BeginTextureMode(screenCam2)
rl.ClearBackground(rl.RayWhite)
rl.BeginMode2D(cam2)
for i := 0; i < int(screenW/int32(playerSize))+1; i++ {
rl.DrawLineV(rl.NewVector2(playerSize*float32(i), 0), rl.NewVector2(playerSize*float32(i), float32(screenH)), rl.LightGray)
}
for i := 0; i < int(screenH/int32(playerSize))+1; i++ {
rl.DrawLineV(rl.NewVector2(0, playerSize*float32(i)), rl.NewVector2(float32(screenW), playerSize*float32(i)), rl.LightGray)
}
for i := 0; i < int(screenW/int32(playerSize)); i++ {
for j := 0; j < int(screenH/int32(playerSize)); j++ {
rl.DrawText("["+fmt.Sprint(i)+","+fmt.Sprint(j)+"]", 10+int32(playerSize*float32(i)), 15+int32(playerSize*float32(j)), 10, rl.LightGray)
}
}
rl.DrawRectangleRec(player1, rl.Red)
rl.DrawRectangleRec(player2, rl.Blue)
rl.EndMode2D()
rl.DrawRectangle(0, 0, screenW/2, 30, rl.Fade(rl.RayWhite, 0.6))
rl.DrawText("PLAYER 2 ARROW KEYS", 10, 10, 10, rl.Maroon)
rl.EndTextureMode()
rl.BeginDrawing()
rl.ClearBackground(rl.Black)
rl.DrawTextureRec(screenCam1.Texture, splitScreenRec, rl.NewVector2(0, 0), rl.White)
rl.DrawTextureRec(screenCam2.Texture, splitScreenRec, rl.NewVector2(float32(screenW/2), 0), rl.White)
rl.DrawRectangle((screenW/2)-2, 0, 4, screenH, rl.LightGray)
rl.EndDrawing()
}
rl.UnloadRenderTexture(screenCam1)
rl.UnloadRenderTexture(screenCam2)
rl.CloseWindow()
}

130
examples/core/3d_camera_splitscreen/main.go Normal file
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package main
import (
rl "github.com/gen2brain/raylib-go/raylib"
)
var (
screenW = int32(800)
screenH = int32(450)
playerSize = float32(40)
cam1, cam2 rl.Camera3D
)
func main() {
rl.InitWindow(screenW, screenH, "raylib [core] example - 3d camera split screen")
cam1.Fovy = 45
cam1.Up.Y = 1
cam1.Target.Y = 1
cam1.Position.Z = -3
cam1.Position.Y = 0.5
cam2 = cam1
cam1.Position.Z = 3
screenCam1 := rl.LoadRenderTexture(screenW/2, screenH)
screenCam2 := rl.LoadRenderTexture(screenW/2, screenH)
splitScreenRec := rl.NewRectangle(0, 0, float32(screenCam1.Texture.Width), -float32(screenCam1.Texture.Height))
count := 5
spacing := float32(4)
rl.SetTargetFPS(60)
for !rl.WindowShouldClose() {
frameOffset := 10 * rl.GetFrameTime()
if rl.IsKeyDown(rl.KeyW) {
cam1.Position.Z -= frameOffset
cam1.Target.Z -= frameOffset
} else if rl.IsKeyDown(rl.KeyS) {
cam1.Position.Z += frameOffset
cam1.Target.Z += frameOffset
}
if rl.IsKeyDown(rl.KeyD) {
cam1.Position.X += frameOffset
cam1.Target.X += frameOffset
} else if rl.IsKeyDown(rl.KeyA) {
cam1.Position.X -= frameOffset
cam1.Target.X -= frameOffset
}
if rl.IsKeyDown(rl.KeyUp) {
cam2.Position.Z += frameOffset
cam2.Target.Z += frameOffset
} else if rl.IsKeyDown(rl.KeyDown) {
cam2.Position.Z -= frameOffset
cam2.Target.Z -= frameOffset
}
if rl.IsKeyDown(rl.KeyRight) {
cam2.Position.X -= frameOffset
cam2.Target.X -= frameOffset
} else if rl.IsKeyDown(rl.KeyLeft) {
cam2.Position.X += frameOffset
cam2.Target.X += frameOffset
}
rl.BeginTextureMode(screenCam1)
rl.ClearBackground(rl.SkyBlue)
rl.BeginMode3D(cam1)
rl.DrawPlane(rl.Vector3Zero(), rl.NewVector2(50, 50), rl.Beige)
for x := -float32(count) * spacing; x <= float32(count)*spacing; x += spacing {
for z := -float32(count) * spacing; z <= float32(count)*spacing; z += spacing {
rl.DrawCube(rl.NewVector3(x-0.5, 1.5, z), 1, 1, 1, rl.Lime)
rl.DrawCube(rl.NewVector3(x-0.5, 0.5, z), 0.25, 1, 0.25, rl.Brown)
}
}
rl.DrawCube(cam1.Position, 1, 1, 1, rl.Red)
rl.DrawCube(cam2.Position, 1, 1, 1, rl.Blue)
rl.EndMode3D()
rl.DrawRectangle(0, 0, screenW/2, 40, rl.Fade(rl.RayWhite, 0.8))
rl.DrawText("PLAYER 1 WASD KEYS", 10, 10, 20, rl.Maroon)
rl.EndTextureMode()
rl.BeginTextureMode(screenCam2)
rl.ClearBackground(rl.SkyBlue)
rl.BeginMode3D(cam2)
rl.DrawPlane(rl.Vector3Zero(), rl.NewVector2(50, 50), rl.Beige)
for x := -float32(count) * spacing; x <= float32(count)*spacing; x += spacing {
for z := -float32(count) * spacing; z <= float32(count)*spacing; z += spacing {
rl.DrawCube(rl.NewVector3(x, 1.5, z), 1, 1, 1, rl.Lime)
rl.DrawCube(rl.NewVector3(x, 0.5, z), 0.25, 1, 0.25, rl.Brown)
}
}
rl.DrawCube(cam1.Position, 1, 1, 1, rl.Red)
rl.DrawCube(cam2.Position, 1, 1, 1, rl.Blue)
rl.EndMode3D()
rl.DrawRectangle(0, 0, screenW/2, 40, rl.Fade(rl.RayWhite, 0.8))
rl.DrawText("PLAYER 2 ARROW KEYS", 10, 10, 20, rl.Maroon)
rl.EndTextureMode()
rl.BeginDrawing()
rl.ClearBackground(rl.Black)
rl.DrawTextureRec(screenCam1.Texture, splitScreenRec, rl.NewVector2(0, 0), rl.White)
rl.DrawTextureRec(screenCam2.Texture, splitScreenRec, rl.NewVector2(float32(screenW/2), 0), rl.White)
rl.DrawRectangle((screenW/2)-2, 0, 4, screenH, rl.LightGray)
rl.EndDrawing()
}
rl.UnloadRenderTexture(screenCam1)
rl.UnloadRenderTexture(screenCam2)
rl.CloseWindow()
}

52
examples/core/scissor_test/main.go Normal file
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package main
import (
rl "github.com/gen2brain/raylib-go/raylib"
)
var (
screenW = int32(800)
screenH = int32(450)
)
func main() {
rl.InitWindow(screenW, screenH, "raylib [core] example - scissor test")
scissorArea := rl.NewRectangle(0, 0, 300, 300)
scissorMode := true
rl.SetTargetFPS(60)
for !rl.WindowShouldClose() {
if rl.IsKeyPressed(rl.KeyS) {
scissorMode = !scissorMode
}
scissorArea.X = float32(rl.GetMouseX())
scissorArea.Y = float32(rl.GetMouseY())
rl.BeginDrawing()
rl.ClearBackground(rl.RayWhite)
if scissorMode {
rl.BeginScissorMode(scissorArea.ToInt32().X, scissorArea.ToInt32().Y, scissorArea.ToInt32().Width, scissorArea.ToInt32().Height)
}
rl.DrawRectangle(0, 0, screenW, screenH, rl.Red)
rl.DrawText("MOVE MOUSE TO REVEAL TEXT", 190, 200, 20, rl.Black)
if scissorMode {
rl.EndScissorMode()
}
rl.DrawRectangleLinesEx(scissorArea, 1, rl.Black)
rl.DrawText("S KEY TO TOGGLE MODE", 10, 10, 20, rl.Black)
rl.EndDrawing()
}
rl.CloseWindow()
}