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mirror of https://github.com/lxsang/Diya-API.git synced 2024-12-29 12:58:21 +01:00
Diya-API/Diya/DiyaApplicationLauncher.class.st
2022-08-13 15:55:51 +02:00

120 lines
2.9 KiB
Smalltalk

Class {
#name : #DiyaApplicationLauncher,
#superclass : #DiyaApplicationModel,
#instVars : [
'currapp',
'txtFPS',
'event',
'running'
],
#category : #'Diya-Applications'
}
{ #category : #initialization }
DiyaApplicationLauncher >> appNode [
^root children first
]
{ #category : #initialization }
DiyaApplicationLauncher >> bindGlobalEvent [
|pointer |
pointer := root addNode: (DiyaCircle r: 10) at: 200@200.
pointer styleName: #pointer.
root on: #keydown do:[:e| self stdlog: 'keydown...'. running := false.].
root on: #quit do: [:e| running := false].
root on: #(fingerdown fingermotion mousemotion) do:[:e|
pointer position: e mapped worldPosition.
DiyaRendererContext uniqueInstance mouse: (e mapped x) @ (e mapped y).
].
]
{ #category : #initialization }
DiyaApplicationLauncher >> defaultApplication [
^DiyaExampleApp
]
{ #category : #initialization }
DiyaApplicationLauncher >> initialize [
super initialize.
root := DiyaRootNode new.
currapp := nil.
]
{ #category : #initialization }
DiyaApplicationLauncher >> launch: app [
currapp ifNotNil: [
currapp quit.
root empty.
].
currapp := app uniqueInstance.
self context assets: currapp am.
[
self stdlog: 'Loading application'.
currapp root visibility: false.
currapp setup.
self appNode addNode: currapp root.
self process: true.
currapp root visibility: true.
self stdlog: 'Application LOADED'.
] fork.
]
{ #category : #initialization }
DiyaApplicationLauncher >> main [
| fps delta|
delta := DiyaClock uniqueInstance delta asMilliSeconds.
fps := DiyaBoot maxFPS.
delta = 0 ifFalse:[ fps := (1000/ delta) asInteger].
txtFPS data: ('FPS:', fps asString).
[(SDL2 pollEvent: event) > 0] whileTrue: [
root trigger: (DiyaEvent from: event mapped).
].
currapp ifNotNil: [currapp main.].
root stepDown.
self process: false.
root render.
]
{ #category : #initialization }
DiyaApplicationLauncher >> process: force [
|Q node maxProcessingTime|
maxProcessingTime := (1000 / DiyaBoot maxFPS) asInteger >> 1.
Q := root processingQueue.
Q ifEmpty:[^ self].
[
node := Q removeFirst.
node process.
Q isNotEmpty and: (
(DiyaClock uniqueInstance lapDelta asMilliSeconds < maxProcessingTime) or: force)
] whileTrue
]
{ #category : #accessing }
DiyaApplicationLauncher >> running [
^ running
]
{ #category : #initialization }
DiyaApplicationLauncher >> setup [
event := SDL_Event new.
DiyaUIThemesManager uniqueInstance currentTheme
define: #fps_text styles: {
#color -> Color red.
#fontSize -> 18.
#bgColor -> Color transparent.
};
define: #pointer styles: {
#borderColor -> Color red.
#bgColor -> Color orange.
#border -> 3
}.
root addNode: (DiyaCompositeNode new) at: 0@0.
txtFPS := root addNode:(DiyaText data: '') at: ( self context resolution x - 80)@(self context resolution y - 40).
txtFPS extent: 80@40.
txtFPS styleName: #fps_text.
self bindGlobalEvent.
running := true.
self launch: self defaultApplication.
]