151 lines
4.5 KiB
Go
151 lines
4.5 KiB
Go
package main
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import (
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"github.com/gen2brain/raylib-go/raylib"
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)
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type ClientAuth struct {
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}
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type LoginState int
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const (
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LOGIN_STATE_CREDENTIALS LoginState = iota
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LOGIN_STATE_ATTEMPTING
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LOGIN_STATE_ERROR
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)
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type ButtonState int
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const (
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BUTTON_STATE_IDLE ButtonState = iota
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BUTTON_STATE_HOVER
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BUTTON_STATE_PRESSED
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)
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type ClientState struct {
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auth *ClientAuth
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login LoginState
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login_button ButtonState
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ui_scale uint
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window_scale rl.Vector2
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}
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const (
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WIDTH uint = 1600
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HEIGHT uint = 1000
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)
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func scale(original rl.Rectangle, ui_scale uint, window_scale rl.Vector2) rl.Rectangle {
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return rl.Rectangle{
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X: original.X/window_scale.X,
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Y: original.Y/window_scale.Y,
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Width: original.Width*float32(ui_scale)/window_scale.X,
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Height: original.Height*float32(ui_scale)/window_scale.Y,
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}
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}
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func center(original rl.Rectangle, off_x, off_y int, window_scale rl.Vector2, width, height uint) rl.Rectangle {
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return rl.Rectangle{
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X: (float32(width) /window_scale.X - original.Width )/2 + float32(off_x)/window_scale.X,
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Y: (float32(height)/window_scale.Y - original.Height)/2 + float32(off_y)/window_scale.Y,
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Width: original.Width,
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Height: original.Height,
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}
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}
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func button(rectangle rl.Rectangle, idle, hover, pressed rl.Color, text string, font_size int32, text_color rl.Color, last_state ButtonState) (action bool, next_state ButtonState) {
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over := rl.CheckCollisionPointRec(rl.GetMousePosition(), rectangle)
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action = false
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next_state = last_state
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if(rl.IsMouseButtonPressed(rl.MouseButtonLeft) && over) {
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next_state = BUTTON_STATE_PRESSED
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} else if(rl.IsMouseButtonReleased(rl.MouseButtonLeft) && last_state == BUTTON_STATE_PRESSED) {
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next_state = BUTTON_STATE_IDLE
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if(over) {
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action = true
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}
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} else if(rl.IsMouseButtonUp(rl.MouseButtonLeft)) {
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if(last_state == BUTTON_STATE_IDLE && over) {
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next_state = BUTTON_STATE_HOVER
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} else if (last_state == BUTTON_STATE_HOVER && !over) {
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next_state = BUTTON_STATE_IDLE
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}
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}
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var color rl.Color
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switch(next_state) {
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case BUTTON_STATE_HOVER:
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color = hover
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case BUTTON_STATE_PRESSED:
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color = pressed
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default:
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color = idle
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}
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rl.DrawRectangleRec(rectangle, color)
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text_size := rl.MeasureTextEx(rl.GetFontDefault(), text, float32(font_size), 1.0)
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rl.DrawText(text, int32(rectangle.X + rectangle.Width/2 - text_size.X/2), int32(rectangle.Y + rectangle.Height/2 - text_size.Y/2), font_size, text_color)
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return action, next_state
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}
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func main() {
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state := ClientState{
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auth: nil,
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login: LOGIN_STATE_CREDENTIALS,
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login_button: BUTTON_STATE_IDLE,
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ui_scale: 1,
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}
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rl.SetConfigFlags(rl.FlagWindowHighdpi)
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rl.InitWindow(0, 0, "roleplay")
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rl.SetExitKey(0)
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rl.SetTargetFPS(60)
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state.window_scale = rl.GetWindowScaleDPI()
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rl.SetWindowSize(int(float32(WIDTH)/state.window_scale.X), int(float32(HEIGHT)/state.window_scale.Y))
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for(rl.WindowShouldClose() == false) {
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if(state.auth == nil) {
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// Draw login
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rl.BeginDrawing()
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rl.ClearBackground(rl.White)
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logo_rect := scale(rl.Rectangle{Width: 1200, Height: 300}, state.ui_scale, state.window_scale)
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logo_rect = center(logo_rect, 0, -300, state.window_scale, WIDTH, HEIGHT)
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rl.DrawRectangleRec(logo_rect, rl.Gray)
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form_rect := scale(rl.Rectangle{Width: 600, Height: 400}, state.ui_scale, state.window_scale)
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form_rect = center(form_rect, 0, 150, state.window_scale, WIDTH, HEIGHT)
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rl.DrawRectangleRec(form_rect, rl.Gray)
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switch(state.login) {
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case LOGIN_STATE_CREDENTIALS:
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submit_rect := scale(rl.Rectangle{Width: 100, Height: 50}, state.ui_scale, state.window_scale)
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submit_rect = center(submit_rect, 0, 300, state.window_scale, WIDTH, HEIGHT)
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var submit_action bool
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submit_action, state.login_button = button(submit_rect, rl.Black, rl.Brown, rl.Red, "Submit", 12, rl.White, state.login_button)
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if submit_action {
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state.login = LOGIN_STATE_ATTEMPTING
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}
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case LOGIN_STATE_ATTEMPTING:
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text := "Logging in..."
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text_size := rl.MeasureTextEx(rl.GetFontDefault(), text, 20, 1.0)
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text_rect := center(rl.Rectangle{Width: text_size.X, Height: text_size.Y}, 0, 0, state.window_scale, WIDTH, HEIGHT)
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rl.DrawText(text, int32(text_rect.X), int32(text_rect.Y), 20, rl.Black)
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case LOGIN_STATE_ERROR:
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text := "Error: {TODO}"
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text_size := rl.MeasureTextEx(rl.GetFontDefault(), text, 20, 1.0)
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text_rect := center(rl.Rectangle{Width: text_size.X, Height: text_size.Y}, 0, 0, state.window_scale, WIDTH, HEIGHT)
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rl.DrawText(text, int32(text_rect.X), int32(text_rect.Y), 20, rl.Black)
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}
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rl.EndDrawing()
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} else {
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// Draw game
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}
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}
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}
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