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Topalian_Game_Engine_Camera_Stays_018a.html
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<!-- Dedicated to God the Father -->
<!-- All Rights Reserved Christopher Topalian Copyright 2020-2022 -->
<!-- https://github.com/ChristopherTopalian -->
<!-- Topalian_Game_Engine_Camera_Stays_018a.html -->
<!-- Camera Stays Static -->
<!--
Controls:
W is up,
S is Down,
A is Left,
D is Right
Speed:
~ 1 2 3 4 5 for Speed Setting
Hold Shift to Boost Speed
Mouse Position:
Click the left mouse button to get the X and Y coordinates of any place on the screen
Level Change:
Numpad 1, 2, 3, 4 to change levels
or
Left Click the Level Buttons
Audio:
Letter V to Start Song
Letter B to Stop Song
or
Left Click the Play Song Button
Left Click the Stop Song Button
-->
<!-- https://github.com/ChristopherTopalian/Topalian-Game-Engine -->
<!--
Watch the video here https://www.youtube.com/watch?v=j-7xVT0A1TM
-->
<html>
<head>
<title> Topalian Game Engine Camera Stays 018a </title>
<style>
body
{
height: 100%;
/* scroll bars hidden */
overflow: hidden;
}
audio
{
display: none;
}
#thePlayer
{
position: absolute;
width: 70px;
height: 70px;
padding: 4px;
z-index: 5;
border-radius: 8px;
background: rgb(73, 100, 150);
font-family: tahoma;
font-size: 13px;
font-weight: bold;
color: rgb(255, 255, 255);
word-wrap: break-word;
text-align: center;
}
#theBackground
{
position: fixed;
left: 0px;
top: 0px;
min-width: 100%;
min-height: 100%;
z-index: -1;
align-content: center;
background-image: url("https://collegeofscripting.weebly.com/uploads/6/4/4/8/64482293/stars-nice-edited_orig.png");
}
.boxStyle001
{
position: absolute;
padding-left: 4px;
padding-right: 4px;
padding-top: 8px;
padding-bottom: 8px;
z-index: 4;
border-style: solid;
border-width: 3px;
border-color: rgb(170, 170, 170);
background: rgb(0, 0, 0);
font-family: tahoma;
font-size: 15px;
font-weight: bold;
color: rgb(255, 255, 255);
word-wrap: break-word;
text-align: center;
}
.boxStyle002
{
position: absolute;
padding-left: 4px;
padding-right: 4px;
padding-top: 8px;
padding-bottom: 8px;
z-index: 4;
border-style: solid;
border-width: 3px;
border-color: rgb(170, 170, 170);
background: rgb(85, 85, 85);
font-family: tahoma;
font-size: 15px;
color: rgb(255, 255, 255);
word-wrap: break-word;
text-align: center;
}
.levelButtonsFlexStyle
{
position: absolute;
left: 200px;
top: 5px;
display: flex;
flex-direction: row;
}
.levelButtonStyle
{
margin: 1px;
padding: 9px;
border-style: solid;
border-width: 1px;
border-color: rgb(100, 100, 100);
border-radius: 3px;
background-color: rgb(0, 0, 0);
text-decoration: none;
font-family: arial;
font-size: 14.5px;
font-weight: bold;
color: rgb(247, 247, 247);
text-indent: 0px;
text-align: center;
line-height: 0px;
display: inline-block;
}
.levelButtonStyle:hover
{
border-color: rgb(255, 255, 255);
background: rgb(0, 0, 0);
}
.levelButtonStyle:active
{
position: relative;
top: 1px;
border-color: rgb(255, 255, 0);
}
/* instructions menu on the top left */
.instructionsDetailsStyle
{
position: absolute;
top: 1;
left: 1;
max-width: 300px;
color: rgb(255, 255, 255);
z-index: 998;
padding-left: 5px;
border-style: solid;
border-width: 1px;
border-color: rgb(170, 170, 170);
border-radius: 4px;
background: rgb(0, 0, 0);
}
#instructions
{
padding-left: 4px;
padding-right: 8px;
padding-top: 0px;
padding-bottom: 8px;
font-family: tahoma;
font-size: 17px;
color: rgb(255, 255, 255);
line-height: 18px;
word-wrap: break-word;
}
/* menu on the top right */
.infoStyle
{
position: absolute;
top: 1;
right: 1;
max-width: 100px;
z-index: 998;
padding-left: 10px;
padding-right: 10px;
padding-top: 4px;
padding-bottom: 4px;
border-style: solid;
border-color: rgb(255, 255, 255);
border-radius: 4px;
background: rgb(0, 0, 0);
font-size: 15px;
color: rgb(255, 255, 255);
word-wrap: break-word;
}
.dedicationStyle
{
position: absolute;
left: 700px;
top: 5px;
width: 500px;
height: 400px;
z-index: 5;
font-family: arial;
font-size: 20px;
font-weight: bold;
color: rgb(255, 255, 255);
word-wrap: break-word;
}
.textStyle001
{
padding-left: 4px;
padding-right: 8px;
padding-top: 0px;
padding-bottom: 8px;
font-family: tahoma;
font-size: 17px;
color: rgb(255, 255, 255);
line-height: 18px;
word-wrap: break-word;
}
.textStyle002
{
padding-left: 4px;
padding-right: 8px;
padding-top: 0px;
padding-bottom: 8px;
font-family: arial;
font-size: 20px;
color: rgb(255, 255, 255);
line-height: 18px;
word-wrap: break-word;
}
</style>
</head>
<body onload = "whenLoaded();">
<!-- sound files -->
<!-- if no internet resource is found, it instead uses the local file -->
<audio id = "songActionStrike" controls preload = "auto" loop>
<source src = "https://collegeofscripting.weebly.com/uploads/6/4/4/8/64482293/action_strike.mp3">
<source src = "songs\Action Strike.mp3" type = "audio/mpeg">
</audio>
<audio id = "sfxBlip001Id" controls preload = "auto">
<source src = "https://collegeofscripting.weebly.com/uploads/6/4/4/8/64482293/sfx_blip_001.mp4">
<source src = "sfx\sfx_blip_001.mp4" type = "video/mp4">
</audio>
<audio id = "sfxCrystalBell001Id" controls preload = "auto">
<source src = "https://collegeofscripting.weebly.com/uploads/6/4/4/8/64482293/sfx_crystal_bell_001.mp4" type = "video/mp4">
<source src = "sfx\sfx_crystal_bell_001.mp4" type = "video/mp4">
</audio>
<audio id = "sfxZap001Id" controls preload = "auto">
<source src = "https://collegeofscripting.weebly.com/uploads/6/4/4/8/64482293/sfx_zap_001.mp4" type = "video/mp4">
<source src = "sfx\sfx_zap_001.mp4" type = "video/mp4">
</audio>
<!-- info -->
<details class = "instructionsDetailsStyle">
<summary></summary>
<!-- instructions -->
<div id = "instructions">
W is up, S is down, <br>
A is left, D is Right <br>
~ 1 2 3 4 5 6 7 8 9 0 for speed <br>
Hold Shift to Boost Speed <br>
Letter V to Start Song <br>
Letter B to Stop Song <br>
Numpad 1, 2, 3, 4 for Level Change
</div>
</details>
<div id = "thePlayer" class = "box"> WASD<br>To Move </div>
<div id = "theBackground" class = "box"></div>
<div class = "levelButtonsFlexStyle">
<button onclick = "level('objectsLevel001');" class = "levelButtonStyle"> Level 1 </button>
<button onclick = "level('objectsLevel002');" class = "levelButtonStyle"> Level 2 </button>
<button onclick = "level('objectsLevel003');" class = "levelButtonStyle"> Level 3 </button>
<button onclick = "level('objectsLevel004');" class = "levelButtonStyle"> Level 4 </button>
</div>
<details class = "infoStyle" open>
<summary></summary>
<button onclick = "audioPlay('songActionStrike', 0.5);" class = "levelButtonStyle"> Play Song </button>
<button onclick = "audioStop('songActionStrike');" class = "levelButtonStyle"> Stop Song </button>
</details>
<!-- dedication -->
<div id = "theDedication" class = "dedicationStyle">
Dedicated to God the Father<br>
TOPALIAN GAME ENGINE<br>
<a href = "https://github.com/ChristopherTopalian" target = "_blank" class = "textStyle002">https://github.com/ChristopherTopalian</a>
</div>
<script>
let collisionColor001 = "rgb(128, 128, 128)";
let collisionColor002 = "rgb(170, 170, 170)";
let objectsLevel001 = [
{
name: "box001",
positionType: "absolute",
x: 300,
y: 250,
width: 70,
height: 70,
id: "box001",
text: "box001",
kind: "box",
type: "div",
styleName: "boxStyle001"
},
{
name: "box002",
positionType: "absolute",
x: 500,
y: 250,
width: 70,
height: 70,
id: "box002",
text: "box002",
kind: "box",
type: "div",
styleName: "boxStyle001"
},
{
name: "box003",
positionType: "absolute",
x: 700,
y: 250,
width: 70,
height: 70,
id: "box003",
text: "box003",
kind: "box",
type: "div",
styleName: "boxStyle001"
}
];
let objectsLevel002 = [
{
name: "boxCollideTop",
positionType: "absolute",
x: 200,
y: 250,
width: 70,
height: 70,
id: "boxCollideTop",
text: "box\nCollide\nTop",
kind: "box",
type: "div",
styleName: "boxStyle001"
},
{
name: "boxCollideBottom",
positionType: "absolute",
x: 400,
y: 250,
width: 70,
height: 70,
id: "boxCollideBottom",
text: "box\nCollide\nBottom",
kind: "box",
type: "div",
styleName: "boxStyle001"
},
{
name: "boxCollideLeft",
positionType: "absolute",
x: 600,
y: 250,
width: 70,
height: 70,
id: "boxCollideLeft",
text: "box\nCollide\nLeft",
kind: "box",
type: "div",
styleName: "boxStyle001"
},
{
name: "boxCollideRight",
positionType: "absolute",
x: 800,
y: 250,
width: 70,
height: 70,
id: "boxCollideRight",
text: "box\nCollide\nRight",
kind: "box",
type: "div",
styleName: "boxStyle001"
},
];
let objectsLevel003 = [
{
name: "box004",
positionType: "absolute",
x: 300,
y: 150,
width: 70,
height: 70,
id: "box004",
text: "box004",
kind: "box",
type: "div",
styleName: "boxStyle001"
},
{
name: "box005",
positionType: "absolute",
x: 500,
y: 150,
width: 70,
height: 70,
id: "box005",
text: "box005",
kind: "box",
type: "div",
styleName: "boxStyle001"
},
{
name: "box006",
positionType: "absolute",
x: 700,
y: 150,
width: 70,
height: 70,
id: "box006",
text: "box006",
kind: "box",
type: "div",
styleName: "boxStyle001"
},
];
let objectsLevel004 = [
{
name: "box007",
positionType: "absolute",
x: 500,
y: 100,
width: 70,
height: 70,
id: "box007",
text: "box007",
kind: "box",
type: "div",
styleName: "boxStyle001"
},
{
name: "box008",
positionType: "absolute",
x: 500,
y: 300,
width: 70,
height: 70,
id: "box008",
text: "box008",
kind: "box",
type: "div",
styleName: "boxStyle001"
},
{
name: "box009",
positionType: "absolute",
x: 500,
y: 500,
width: 70,
height: 70,
id: "box009",
text: "box009",
kind: "box",
type: "div",
styleName: "boxStyle001"
},
];
// create the objects on the screen
function objectsToScreen(whichArray)
{
whichArray = eval(whichArray);
for (let x = 0; x < whichArray.length; x++)
{
let theElement = document.createElement(whichArray[x].type);
theElement.style.position = whichArray[x].positionType;
theElement.style.left = whichArray[x].x + "px";
theElement.style.top = whichArray[x].y + "px";
theElement.style.width = whichArray[x].width + "px";
theElement.style.height = whichArray[x].height + "px";
theElement.style.display = "block";
theElement.id = whichArray[x].id;
theElement.innerHTML = whichArray[x].text;
theElement.title = whichArray[x].name;
theElement.className = whichArray[x].styleName;
document.body.append(theElement);
}
}
function erase(whichClass)
{
whichClass = "." + whichClass;
let theElements = document.querySelectorAll(whichClass);
for (let x = 0; x < theElements.length; x++)
{
theElements[x].remove();
}
}
function audioPlay(whichAudioId, theVolume)
{
let theAudio = document.getElementById(whichAudioId);
theAudio.play();
theAudio.volume = theVolume;
}
function audioStop(whichAudioId)
{
let theAudio = document.getElementById(whichAudioId);
theAudio.pause();
}
// Keyboard Letter Codes Being Pressed
let keyboard = { };
keyboard.UP = 87; // 87 is w, 38 is up arrow
keyboard.DOWN = 83; // 83 is s, 40 is down arrow
keyboard.LEFT = 65; // 65 is a, 37 is left arrow
keyboard.RIGHT = 68; // 68 is d, 39 is right arrow
keyboard.SHIFT = 16; // Shift Button
// Player's start position, speedMultiplier, id, and color
let ourPlayer =
{
x: 100,
y: 300,
speedMultiplier: 2,
playerId: document.getElementById("thePlayer"),
playerColor: "rgb(73, 100, 150)"
};
function level(whichLevel)
{
audioPlay("sfxCrystalBell001Id", 1.0);
whichLevel = eval(whichLevel);
erase("boxStyle001");
objectsToScreen(whichLevel);
}
function theControls(e)
{
if (e.keyCode == 86) // Press Letter v
{
ourPlayer.playerId.innerHTML = "Song Playing";
audioPlay("songActionStrike", 0.5);
}
if (e.keyCode == 66) // Press Letter b
{
ourPlayer.playerId.innerHTML = "Song Stopped";
audioStop("songActionStrike");
}
if (e.keyCode == 27) // Press Esc
{
audioStop("songActionStrike");
document.getElementById("thePlayer").innerHTML = "Song Stopped";
}
// SPEED
if (e.keyCode == 192) // tilda ~
{
ourPlayer.speedMultiplier = 0.5;
ourPlayer.playerId.innerHTML = "<br>Speed Slow";
setTimeout(function(){ document.getElementById("thePlayer").innerHTML=""; }, 5000);
}
if (e.keyCode == 49) // number 1
{
ourPlayer.speedMultiplier = 1;
ourPlayer.playerId.innerHTML = "<br>Speed 1";
setTimeout(function(){ document.getElementById("thePlayer").innerHTML = ""; }, 5000);
}
if (e.keyCode == 50) // number 2
{
ourPlayer.speedMultiplier = 2;
ourPlayer.playerId.innerHTML = "<br>Speed 2";
setTimeout(function(){ document.getElementById("thePlayer").innerHTML = ""; }, 5000);
}
if (e.keyCode == 51) // number 3
{
ourPlayer.speedMultiplier = 5;
ourPlayer.playerId.innerHTML = "<br>Speed 5";
setTimeout(function(){ document.getElementById("thePlayer").innerHTML = ""; }, 5000);
}
if (e.keyCode == 52) // number 4
{
ourPlayer.speedMultiplier = 10;
ourPlayer.playerId.innerHTML = "<br>Speed 10";
setTimeout(function(){ document.getElementById("thePlayer").innerHTML = ""; }, 5000);
}
if (e.keyCode == 53) // number 5
{
ourPlayer.speedMultiplier = 15;
ourPlayer.playerId.innerHTML = "<br>Speed 15";
setTimeout(function(){ document.getElementById("thePlayer").innerHTML = ""; }, 5000);
}
// choose a Level to load using the Numpad numbers
if (e.keyCode == 97) // numpad 1
{
audioPlay("sfxCrystalBell001Id", 1.0);
erase("boxStyle001");
objectsToScreen("objectsLevel001");
}
if (e.keyCode == 98) // numpad 2
{
audioPlay("sfxCrystalBell001Id", 1.0);
erase("boxStyle001");
objectsToScreen("objectsLevel002");
}
if (e.keyCode == 99) // numpad 3
{
audioPlay("sfxCrystalBell001Id", 1.0);
erase("boxStyle001");
objectsToScreen("objectsLevel003");
}
if (e.keyCode == 100) // numpad 4
{
audioPlay("sfxCrystalBell001Id", 1.0);
erase("boxStyle001");
objectsToScreen("objectsLevel004");
}
// find out which key was pressed
let theKeyCode = e.keyCode || e.which;
keyboard[theKeyCode] = e.type == 'keydown';
}
// Character Movement
function movePlayer(theX, theY)
{
ourPlayer.x += (theX || 0) * ourPlayer.speedMultiplier;
ourPlayer.y += (theY || 0) * ourPlayer.speedMultiplier;
ourPlayer.playerId.style.left = ourPlayer.x + 'px';
ourPlayer.playerId.style.top = ourPlayer.y + 'px';
}
// Player Controls
function playerMotion()
{
if (keyboard[keyboard.LEFT])
{
movePlayer(-1, 0);
}
if (keyboard[keyboard.RIGHT])
{
movePlayer(1, 0);
}
if (keyboard[keyboard.UP])
{
movePlayer(0, -1);
}
if (keyboard[keyboard.DOWN])
{
movePlayer(0, 1);
}
if (keyboard[keyboard.LEFT] && keyboard[keyboard.SHIFT])
{
movePlayer(-2, 0);
}
if (keyboard[keyboard.RIGHT] && keyboard[keyboard.SHIFT])
{
movePlayer(2, 0);
}
if (keyboard[keyboard.UP] && keyboard[keyboard.SHIFT])
{
movePlayer(0, -2);
}
if (keyboard[keyboard.DOWN] && keyboard[keyboard.SHIFT])
{
movePlayer(0, 2);
}
}
function getAllInfo(theId)
{
theId = document.getElementById(theId);
let theRect = theId.getBoundingClientRect();
return theRect;
}
function getPos(theId)
{
theId = document.getElementById(theId);
let theRect = theId.getBoundingClientRect();
let posXY = {
x: parseInt(theRect.x) + parseInt(theRect.width) / 2,
y: parseInt(theRect.y) + parseInt(theRect.height) / 2
};
return posXY;
}
function getSize(theId)
{
theId = document.getElementById(theId);
let theRect = theId.getBoundingClientRect();
let sizeXY = {
x: parseInt(theRect.width),
y: parseInt(theRect.height)
};
return sizeXY;
}
// detects collisions from any side
function collisionAny(obj1, obj2)
{
// if objects exist
if (document.getElementById(obj1) && document.getElementById(obj2))
{
let theRect1 = document.getElementById(obj1).getBoundingClientRect();
let theRect2 = document.getElementById(obj2).getBoundingClientRect();
// collision of any part of obj1 and obj2
let collided = !(theRect1.right < theRect2.left ||
theRect1.left > theRect2.right ||
theRect1.bottom < theRect2.top ||
theRect1.top > theRect2.bottom);
if (collided == true)
{
if (obj2 == "box001")
{
audioPlay("sfxBlip001Id", 1.0);
// change the text of the player
ourPlayer.playerId.innerHTML = obj2 + " Hit";
// change the color of the player
ourPlayer.playerId.style.backgroundColor = collisionColor001;
// change the color of the object
document.getElementById("box001").style.backgroundColor = collisionColor002;
// change the color of the player back to original
setTimeout(function(){ document.getElementById("thePlayer").style.backgroundColor = ourPlayer.playerColor; }, 500);
// change the text of the player to an empty string
setTimeout(function(){
document.getElementById("thePlayer").innerHTML = ""; }, 500);
// change the color of the object back to original
setTimeout(function(){
document.getElementById("box001").style.backgroundColor = "rgb(0, 0, 0)";
}, 500);
}
if (obj2 == "box002")
{
audioPlay("sfxBlip001Id", 1.0);
// change the text of the player
ourPlayer.playerId.innerHTML = obj2 + " Hit";
// change the color of the player
ourPlayer.playerId.style.backgroundColor = collisionColor001;
// change the color of the object
document.getElementById("box002").style.backgroundColor = collisionColor002;
// change the text of the player to an empty string
setTimeout(function(){
document.getElementById("thePlayer").innerHTML = ""; }, 500);
// change the color of the player back to original
setTimeout(function(){ document.getElementById("thePlayer").style.backgroundColor = ourPlayer.playerColor; }, 500);
// change the color of the player back to original
setTimeout(function(){ document.getElementById("thePlayer").style.backgroundColor = ourPlayer.playerColor; }, 500);
// change the color of the object back to original
setTimeout(function(){
document.getElementById("box002").style.backgroundColor = "rgb(0, 0, 0)";
}, 500);
}
if (obj2 == "box003")
{
audioPlay("sfxBlip001Id", 1.0);
// change the text of the player
ourPlayer.playerId.innerHTML = obj2 + " Hit";
// change the color of the player
ourPlayer.playerId.style.backgroundColor = collisionColor001;
// change the color of the object
document.getElementById("box003").style.backgroundColor = collisionColor002;
// change the text of the player to an empty string
setTimeout(function(){
document.getElementById("thePlayer").innerHTML = ""; }, 500);
// change the color of the player back to original
setTimeout(function(){ document.getElementById("thePlayer").style.backgroundColor = ourPlayer.playerColor; }, 500);
// change the color of the object back to original
setTimeout(function(){
document.getElementById("box003").style.backgroundColor = "rgb(0, 0, 0)";
}, 500);
}
}
}
}
// detects collisions from top side only
function collisionTopSide(obj1, obj2)
{
// if objects exist
if (document.getElementById(obj1) && document.getElementById(obj2))
{
let theRect1 = document.getElementById(obj1).getBoundingClientRect();
let theRect2 = document.getElementById(obj2).getBoundingClientRect();
let collided = !(theRect1.right < theRect2.left ||
theRect1.left > theRect2.right ||
theRect1.bottom < theRect2.top ||
theRect1.top > theRect2.bottom);
let collidedY1 = theRect1.top > theRect2.top || theRect1.bottom > theRect2.bottom;
if (collided == true && collidedY1 != true)
{
audioPlay("sfxBlip001Id", 1.0);
// change the color of the player
ourPlayer.playerId.style.backgroundColor = collisionColor001;
// change the text of the player
document.getElementById("thePlayer").innerHTML = "COLLIDED WITH TOP";
// change the color of the object
document.getElementById("boxCollideTop").style.backgroundColor = collisionColor002;
// change the color of the object back to original
setTimeout(function(){ document.getElementById("boxCollideTop").style.backgroundColor = "rgb(0, 0, 0)"; }, 500);
// change the text of the player to an empty string
setTimeout(function(){ document.getElementById("thePlayer").innerHTML = ""; }, 500);
// change the color of the player back to original
setTimeout(function(){ document.getElementById("thePlayer").style.backgroundColor = ourPlayer.playerColor; }, 500);
}
}
}
// detects collisions from bottom side only
function collisionBottomSide(obj1, obj2)
{
// if objects exist
if (document.getElementById(obj1) && document.getElementById(obj2))
{
let theRect1 = document.getElementById(obj1).getBoundingClientRect();
let theRect2 = document.getElementById(obj2).getBoundingClientRect();
let collided = !(theRect1.right < theRect2.left ||
theRect1.left > theRect2.right ||
theRect1.bottom < theRect2.top ||
theRect1.top > theRect2.bottom);
let collidedY1 = theRect1.top < theRect2.top || theRect1.bottom < theRect2.bottom;
if (collided == true && collidedY1 != true)
{
audioPlay("sfxBlip001Id", 1.0);
// change the color of the player
ourPlayer.playerId.style.backgroundColor = collisionColor001;
// change the color of the object
document.getElementById("boxCollideBottom").style.backgroundColor = collisionColor002;
// change the text of the player
document.getElementById("thePlayer").innerHTML = "COLLIDED WITH BOTTOM";
// change the text of the player to an empty string
setTimeout(function(){ document.getElementById("thePlayer").innerHTML = ""; }, 500);
// change the color of the object back to original
setTimeout(function(){ document.getElementById("boxCollideBottom").style.backgroundColor = "rgb(0, 0, 0)"; }, 500);
// change the color of the player back to original
setTimeout(function(){ document.getElementById("thePlayer").style.backgroundColor = ourPlayer.playerColor; }, 500);
}
}
}
// detects collisions from left side only
function collisionLeftSide(obj1, obj2)
{
// if objects exist
if (document.getElementById(obj1) && document.getElementById(obj2))
{
let theRect1 = document.getElementById(obj1).getBoundingClientRect();
let theRect2 = document.getElementById(obj2).getBoundingClientRect();
let collided = !(theRect1.right < theRect2.left ||
theRect1.left > theRect2.right ||
theRect1.bottom < theRect2.top ||
theRect1.top > theRect2.bottom);
let collidedY1 = theRect1.left > theRect2.left || theRect1.right > theRect2.right;