The Ring programming language version 1.5.4 book - Part 53 of 185
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This document provides documentation for RingLibSDL version 1.5.4 and includes code samples for building a 2D game for Android using Ring Game Engine. It describes how to set up the required software including the Android SDK, NDK, Ant, and JDK. It explains the project folder structure and how to add game source code and assets. Step-by-step instructions are given for building the project using ndk-build and creating the Android package (.apk) file with ant debug. Screenshots of the built Flappy Bird 3000 game are also included.
![Ring Documentation, Release 1.5.4
text {
point = 400
size = 30
nStep = 9
file = "fonts/pirulen.ttf"
text = "Game Over !!!"
x = 500 y=10
state = func ogame,oself {
if oself.y >= 400
ogame.shutdown = true
ok
}
}
}
showfire(oGame,oGame.aObjects[oGameState.PlayerIndex].x+40,
oGame.aObjects[oGameState.PlayerIndex].y+40)
oGame.aObjects[oGameState.PlayerIndex].enabled = false
oGame.remove(oGameState.PlayerIndex)
ok
func showfire oGame,nX,nY
oGame {
animate {
file = "images/fire.png"
x = nX
y = nY
framewidth = 40
height = 42
nStep = 3
transparent = true
state = func oGame,oSelf {
oSelf {
nStep--
if nStep = 0
nStep = 3
if frame < 13
frame++
else
frame=1
oGame.remove(oself.nIndex)
ok
ok
}
}
}
}
func addenemy oGame,xPos
oGame {
lbraceend = false
sprite {
type = ge_type_enemy
file = "images/smenemy.png"
transparent = true
x = xPos y =10 width=100 height=100
animate=true Scaled=true
direction = GE_DIRECTION_NOMOVE
52.29. Super Man 2016 Game 495](https://image.slidesharecdn.com/521ringfayedringdoc1-180427044409/85/The-Ring-programming-language-version-1-5-4-book-Part-53-of-185-1-320.jpg)
![Ring Documentation, Release 1.5.4
temp = xPos
state = func oGame,oSelf {
oself {
x = oSelf.temp + oGame.aObjects[2].x
if y < 0 y = 0 ok
if y > 100 y=100 ok
if x > SCREEN_W or x < 0 return ok
}
if random(10) = 1
if oGameState.gameresult return ok
ogame {
sprite {
type = ge_type_fire
file = "images/smrocket.png"
scaled = true
transparent = true
x = oself.x + 30
y = oself.y + oself.height+ 30
width = 30
height = 30
point = ogame.screen_h+30
nstep = 30
direction = ge_direction_incvertical
xvalue = oGame.aObjects[2].x
temp = oself.x + 30 - xvalue
state = func oGame,oSelf {
oself { x = oSelf.temp + oGame.aObjects[2].x }
x = oGame.aObjects[oGameState.playerindex]
if oself.x >= x.x and oself.y >= x.y and
oself.x <= x.x + x.width and
oself.y <= x.y + x.height
if oGameState.value > 0
oGameState.value-=1000
ok
ogame.remove(oself.nindex)
checkgameover(oGame)
ok
}
}
}
ok
}
}
}
ogame.lbraceend = true
func checkstarskey oGame,oSelf,nValue,nRow,nCol
switch nValue
on 4
oGame.aObjects[2].aMap[nRow][nCol] = 6
oGameState.Score += 100
checkopenwall(oGame)
oGame { Sound {
once = true
file = "sound/sfx_point.wav"
} }
52.29. Super Man 2016 Game 496](https://image.slidesharecdn.com/521ringfayedringdoc1-180427044409/85/The-Ring-programming-language-version-1-5-4-book-Part-53-of-185-2-320.jpg)
![Ring Documentation, Release 1.5.4
on 5
oGame.aObjects[2].aMap[nRow][nCol] = 0
oGameState.DoorKey = true
oGameState.Score += 500
checkopenwall(oGame)
oGame { Sound {
once = true
file = "sound/sfx_point.wav"
} }
off
func checkstarskeycol oGame,oSelf
nValue = oGame.aObjects[2].getvalue(oSelf.x,oSelf.y)
nRow = oGame.aObjects[2].getrow(oSelf.x,oSelf.y)
nCol = oGame.aObjects[2].getcol(oSelf.x,oSelf.y)
checkstarskey(oGame,oSelf,nValue,nRow,nCol)
nValue = oGame.aObjects[2].getvalue(oSelf.x+oSelf.width,oSelf.y+oSelf.height)
nRow = oGame.aObjects[2].getrow(oSelf.x+oSelf.width,oSelf.y+oSelf.height)
nCol = oGame.aObjects[2].getcol(oSelf.x+oSelf.width,oSelf.y+oSelf.height)
checkstarskey(oGame,oSelf,nValue,nRow,nCol)
nValue = oGame.aObjects[2].getvalue(oSelf.x+oSelf.width,oSelf.y)
nRow = oGame.aObjects[2].getrow(oSelf.x+oSelf.width,oSelf.y)
nCol = oGame.aObjects[2].getcol(oSelf.x+oSelf.width,oSelf.y)
checkstarskey(oGame,oSelf,nValue,nRow,nCol)
nValue = oGame.aObjects[2].getvalue(oSelf.x,oSelf.y+oSelf.height)
nRow = oGame.aObjects[2].getrow(oSelf.x,oSelf.y+oSelf.height)
nCol = oGame.aObjects[2].getcol(oSelf.x,oSelf.y+oSelf.height)
checkstarskey(oGame,oSelf,nValue,nRow,nCol)
func callenemystate oGame
for t in oGame.aObjects
t {
if type = GE_TYPE_ENEMY
call state(oGame,t)
ok
}
next
Class GameState
down = 3
gameresult = false
Score = 0
startplay=false
lastcol = 0
playerwin = false
DoorKey = false
playerindex = 4
value = 1000
moveplayer = false
Screen Shot:
52.29. Super Man 2016 Game 497](https://image.slidesharecdn.com/521ringfayedringdoc1-180427044409/85/The-Ring-programming-language-version-1-5-4-book-Part-53-of-185-3-320.jpg)
The Ring programming language version 1.5.4 book - Part 53 of 185
- 1. Ring Documentation, Release 1.5.4 text { point = 400 size = 30 nStep = 9 file = "fonts/pirulen.ttf" text = "Game Over !!!" x = 500 y=10 state = func ogame,oself { if oself.y >= 400 ogame.shutdown = true ok } } } showfire(oGame,oGame.aObjects[oGameState.PlayerIndex].x+40, oGame.aObjects[oGameState.PlayerIndex].y+40) oGame.aObjects[oGameState.PlayerIndex].enabled = false oGame.remove(oGameState.PlayerIndex) ok func showfire oGame,nX,nY oGame { animate { file = "images/fire.png" x = nX y = nY framewidth = 40 height = 42 nStep = 3 transparent = true state = func oGame,oSelf { oSelf { nStep-- if nStep = 0 nStep = 3 if frame < 13 frame++ else frame=1 oGame.remove(oself.nIndex) ok ok } } } } func addenemy oGame,xPos oGame { lbraceend = false sprite { type = ge_type_enemy file = "images/smenemy.png" transparent = true x = xPos y =10 width=100 height=100 animate=true Scaled=true direction = GE_DIRECTION_NOMOVE 52.29. Super Man 2016 Game 495
- 2. Ring Documentation, Release 1.5.4 temp = xPos state = func oGame,oSelf { oself { x = oSelf.temp + oGame.aObjects[2].x if y < 0 y = 0 ok if y > 100 y=100 ok if x > SCREEN_W or x < 0 return ok } if random(10) = 1 if oGameState.gameresult return ok ogame { sprite { type = ge_type_fire file = "images/smrocket.png" scaled = true transparent = true x = oself.x + 30 y = oself.y + oself.height+ 30 width = 30 height = 30 point = ogame.screen_h+30 nstep = 30 direction = ge_direction_incvertical xvalue = oGame.aObjects[2].x temp = oself.x + 30 - xvalue state = func oGame,oSelf { oself { x = oSelf.temp + oGame.aObjects[2].x } x = oGame.aObjects[oGameState.playerindex] if oself.x >= x.x and oself.y >= x.y and oself.x <= x.x + x.width and oself.y <= x.y + x.height if oGameState.value > 0 oGameState.value-=1000 ok ogame.remove(oself.nindex) checkgameover(oGame) ok } } } ok } } } ogame.lbraceend = true func checkstarskey oGame,oSelf,nValue,nRow,nCol switch nValue on 4 oGame.aObjects[2].aMap[nRow][nCol] = 6 oGameState.Score += 100 checkopenwall(oGame) oGame { Sound { once = true file = "sound/sfx_point.wav" } } 52.29. Super Man 2016 Game 496
- 3. Ring Documentation, Release 1.5.4 on 5 oGame.aObjects[2].aMap[nRow][nCol] = 0 oGameState.DoorKey = true oGameState.Score += 500 checkopenwall(oGame) oGame { Sound { once = true file = "sound/sfx_point.wav" } } off func checkstarskeycol oGame,oSelf nValue = oGame.aObjects[2].getvalue(oSelf.x,oSelf.y) nRow = oGame.aObjects[2].getrow(oSelf.x,oSelf.y) nCol = oGame.aObjects[2].getcol(oSelf.x,oSelf.y) checkstarskey(oGame,oSelf,nValue,nRow,nCol) nValue = oGame.aObjects[2].getvalue(oSelf.x+oSelf.width,oSelf.y+oSelf.height) nRow = oGame.aObjects[2].getrow(oSelf.x+oSelf.width,oSelf.y+oSelf.height) nCol = oGame.aObjects[2].getcol(oSelf.x+oSelf.width,oSelf.y+oSelf.height) checkstarskey(oGame,oSelf,nValue,nRow,nCol) nValue = oGame.aObjects[2].getvalue(oSelf.x+oSelf.width,oSelf.y) nRow = oGame.aObjects[2].getrow(oSelf.x+oSelf.width,oSelf.y) nCol = oGame.aObjects[2].getcol(oSelf.x+oSelf.width,oSelf.y) checkstarskey(oGame,oSelf,nValue,nRow,nCol) nValue = oGame.aObjects[2].getvalue(oSelf.x,oSelf.y+oSelf.height) nRow = oGame.aObjects[2].getrow(oSelf.x,oSelf.y+oSelf.height) nCol = oGame.aObjects[2].getcol(oSelf.x,oSelf.y+oSelf.height) checkstarskey(oGame,oSelf,nValue,nRow,nCol) func callenemystate oGame for t in oGame.aObjects t { if type = GE_TYPE_ENEMY call state(oGame,t) ok } next Class GameState down = 3 gameresult = false Score = 0 startplay=false lastcol = 0 playerwin = false DoorKey = false playerindex = 4 value = 1000 moveplayer = false Screen Shot: 52.29. Super Man 2016 Game 497
- 4. Ring Documentation, Release 1.5.4 52.29. Super Man 2016 Game 498
- 5. CHAPTER FIFTYTHREE BUILDING GAMES FOR ANDROID In this chapter we will learn about Building RingLibSDL Games for Mobile. So we can create packages (*.apk) for the applications that are developed using Ring Game Engine for 2D Games. 53.1 Download Requirements and Update the Android SDK • The Android SDK Tools https://developer.android.com/studio/index.html • The Android NDK https://developer.android.com/ndk/index.html • Apache Ant v1.8 or later http://ant.apache.org/bindownload.cgi • Java SE Development Kit (JDK) v6 or later http://www.oracle.com/technetwork/java/javase/downloads/jdk7-downloads-1880260.html • Update the Android SDK to get the API and tools packages required for development 53.2 Project Folder Open the project folder : ring/android/ringlibsdl/project 499
- 6. Ring Documentation, Release 1.5.4 You can add the source code (*.ring) and Images/Sound Files to the assets folder. You will find the Flappy Bird 3000 Game ready for building. The execution starts from the start.ring file load "game2.ring" 53.3 Building the project Move to the ring/android/ringlibsdl/project folder We can build using the next command (We need to do this for one time only). ndk-build Then we can create the package (*.apk) using the next command. 53.3. Building the project 500
- 7. Ring Documentation, Release 1.5.4 ant debug 53.3. Building the project 501
- 8. CHAPTER FIFTYFOUR USING RINGOPENGL AND RINGFREEGLUT FOR 3D GRAPHICS In this chapter we will learn about using RingOpenGL 54.1 Samples Source (Authors) The samples in this chapter are based on C Tutorials from 1. http://www.lighthouse3d.com/tutorials/glut-tutorial/ 2. http://www.wikihow.com/Make-a-Cube-in-OpenGL 54.2 What is RingOpenGL? RingOpenGL contains the Ring binding to the OpenGL library You can learn about OpenGL from : https://www.opengl.org/ RingOpenGL comes with support for the next versions • OpenGL 1.1 • OpenGL 1.2 • OpenGL 1.3 • OpenGL 1.4 • OpenGL 1.5 • OpenGL 2.0 • OpenGL 2.1 • OpenGL 3.0 • OpenGL 3.2 • OpenGL 3.3 • OpenGL 4.0 • OpenGL 4.1 • OpenGL 4.2 • OpenGL 4.3 502
- 9. Ring Documentation, Release 1.5.4 • OpenGL 4.4 • OpenGL 4.5 • OpenGL 4.6 For example, if you want to use OpenGL 2.1 then load RingOpenGL 2.1 library load "opengl21lib.ring" 54.3 What is RingFreeGLUT? RingFreeGLUT contains the Ring binding to the FreeGLUT library You can learn about FreeGLUT from : http://freeglut.sourceforge.net/ To use the RingFreeGLUT library, Just load the library load "freeglut.ring" 54.4 The First Window using RingFreeGLUT Example: load "freeglut.ring" func main glutInit() glutInitDisplayMode(GLUT_SINGLE) glutInitWindowSize(800, 600) glutInitWindowPosition(100, 10) glutCreateWindow("RingFreeGLUT - Test 1") glutDisplayFunc(:displayCode) glutMainLoop() func displaycode Screen Shot 54.3. What is RingFreeGLUT? 503
- 10. Ring Documentation, Release 1.5.4 54.5 Drawing using RingOpenGL Example: load "freeglut.ring" load "opengl21lib.ring" func main glutInit() glutInitDisplayMode(GLUT_SINGLE) glutInitWindowSize(800, 600) glutInitWindowPosition(100, 10) glutCreateWindow("RingFreeGLUT - Test 2") glutDisplayFunc(:displayCode) glutMainLoop() func displaycode glClear(GL_COLOR_BUFFER_BIT) glColor3f(0,255,0) glBegin(GL_POLYGON) glVertex3f(0.0, 0.0, 0.0) 54.5. Drawing using RingOpenGL 504