doodle/render/sdl/events.go

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Draw Actors Embedded in Levels in Edit Mode Add the JSON format for embedding Actors (Doodad instances) inside of a Level. I made a test map that manually inserted a couple of actors. Actors are given to the Canvas responsible for the Level via the function `InstallActors()`. So it means you'll call LoadLevel and then InstallActors to hook everything up. The Canvas creates sub-Canvas widgets from each Actor. After drawing the main level geometry from the Canvas.Chunker, it calls the drawActors() function which does the same but for Actors. Levels keep a global map of all Actors that exist. For any Actors that are visible within the Viewport, their sub-Canvas widgets are presented appropriately on top of the parent Canvas. In case their sub-Canvas overlaps the parent's boundaries, their sub-Canvas is resized and moved appropriately. - Allow the MainWindow to be resized at run time, and the UI recalculates its sizing and position. - Made the in-game Shell properties editable via environment variables. The kirsle.env file sets a blue and pink color scheme. - Begin the ground work for Levels and Doodads to embed files inside their data via the level.FileSystem type. - UI: Labels can now contain line break characters. It will appropriately render multiple lines of render.Text and take into account the proper BoxSize to contain them all. - Add environment variable DOODLE_DEBUG_ALL=true that will turn on ALL debug overlay and visualization options. - Add debug overlay to "tag" each Canvas widget with some of its details, like its Name and World Position. Can be enabled with the environment variable DEBUG_CANVAS_LABEL=true - Improved the FPS debug overlay to show in labeled columns and multiple colors, with easy ability to add new data points to it.
2018-10-19 20:31:58 +00:00
package sdl
import (
"errors"
"git.kirsle.net/apps/doodle/events"
"github.com/veandco/go-sdl2/sdl"
)
// Poll for events.
func (r *Renderer) Poll() (*events.State, error) {
s := r.events
for event := sdl.PollEvent(); event != nil; event = sdl.PollEvent() {
switch t := event.(type) {
case *sdl.QuitEvent:
return s, errors.New("quit")
case *sdl.WindowEvent:
if DebugWindowEvents {
if t.Event == sdl.WINDOWEVENT_RESIZED {
log.Debug("[%d ms] tick:%d Window Resized to %dx%d",
t.Timestamp,
r.ticks,
t.Data1,
t.Data2,
)
}
}
s.Resized.Push(true)
case *sdl.MouseMotionEvent:
if DebugMouseEvents {
log.Debug("[%d ms] tick:%d MouseMotion type:%d id:%d x:%d y:%d xrel:%d yrel:%d",
t.Timestamp, r.ticks, t.Type, t.Which, t.X, t.Y, t.XRel, t.YRel,
)
}
// Push the cursor position.
s.CursorX.Push(t.X)
s.CursorY.Push(t.Y)
s.Button1.Push(t.State == 1)
case *sdl.MouseButtonEvent:
if DebugClickEvents {
log.Debug("[%d ms] tick:%d MouseButton type:%d id:%d x:%d y:%d button:%d state:%d",
t.Timestamp, r.ticks, t.Type, t.Which, t.X, t.Y, t.Button, t.State,
)
}
// Push the cursor position.
s.CursorX.Push(t.X)
s.CursorY.Push(t.Y)
// Is a mouse button pressed down?
if t.Button == 1 {
var eventName string
if t.State == 1 && s.Button1.Now == false {
eventName = "DOWN"
} else if t.State == 0 && s.Button1.Now == true {
eventName = "UP"
}
if eventName != "" {
s.Button1.Push(eventName == "DOWN")
// Return the event immediately.
return s, nil
}
}
// s.Button2.Push(t.Button == 3 && t.State == 1)
case *sdl.MouseWheelEvent:
if DebugMouseEvents {
log.Debug("[%d ms] tick:%d MouseWheel type:%d id:%d x:%d y:%d",
t.Timestamp, r.ticks, t.Type, t.Which, t.X, t.Y,
)
}
case *sdl.KeyboardEvent:
if DebugKeyEvents {
log.Debug("[%d ms] tick:%d Keyboard type:%d sym:%c modifiers:%d state:%d repeat:%d\n",
t.Timestamp, r.ticks, t.Type, t.Keysym.Sym, t.Keysym.Mod, t.State, t.Repeat,
)
}
switch t.Keysym.Scancode {
case sdl.SCANCODE_ESCAPE:
if t.Repeat == 1 {
continue
}
s.EscapeKey.Push(t.State == 1)
case sdl.SCANCODE_RETURN:
if t.Repeat == 1 {
continue
}
s.EnterKey.Push(t.State == 1)
case sdl.SCANCODE_F12:
s.ScreenshotKey.Push(t.State == 1)
case sdl.SCANCODE_UP:
s.Up.Push(t.State == 1)
case sdl.SCANCODE_LEFT:
s.Left.Push(t.State == 1)
case sdl.SCANCODE_RIGHT:
s.Right.Push(t.State == 1)
case sdl.SCANCODE_DOWN:
s.Down.Push(t.State == 1)
case sdl.SCANCODE_LSHIFT:
case sdl.SCANCODE_RSHIFT:
s.ShiftActive.Push(t.State == 1)
continue
case sdl.SCANCODE_LALT:
case sdl.SCANCODE_RALT:
case sdl.SCANCODE_LCTRL:
case sdl.SCANCODE_RCTRL:
continue
case sdl.SCANCODE_BACKSPACE:
// Make it a key event with "\b" as the sequence.
if t.State == 1 || t.Repeat == 1 {
s.KeyName.Push(`\b`)
}
default:
// Push the string value of the key.
if t.State == 1 {
s.KeyName.Push(string(t.Keysym.Sym))
}
}
}
}
return s, nil
}