for(_='0,~r(|veckk3(jV.w&$1$3$%Array#]+[U["1,!at >>0 +=.2 ), ] da(4,onmousecos(&U=>.splice((...)).conc (O[);#.from((git(P,1/8*-B,0 tribute kQ[U] fo|U in ;so(C=ch(VS-- ` Q[8-f ][8+E ]}` cS(C ah(P,C#(16 m 3(m 2( -&,&,)))*(jV)+P).vtf`V` [OOvarying lowp flo C;void main(){gl_ g)g[U[0"7]"13]]]=g[U];with(g){P=c|) 4 V;3 P,R,L;Position=k4(x*${dBH}./${dBW}.,y-.0!-.0!z+.2C=dot(normalize(cross(L-P,R-P) j.8,.6,.7)A=B=T=O=0 FragColor=k4(jC 1cl(lg(P u|P bf(AU,cu() 1ba(AU,Flo 32`[[O [ [ [[[ [[ [TOJJOJVOQRQOQJSOHJTOJOQRJMOQKOHJOJJPOPOVVOPONOPOPN`.replace(//g,`%2$2%3$2$1` (U.charCodeAt()-32)/94-.5 SDe(DE Q=`PRL`)eet vto 3,F,~36,U*12)move=T=U.clientX/dBW-.5;$=(O=!E=A,f=BQ=M h.random)setInterval({clea|16640A *T;B ;I=A ;J=B ;A-=I;B-=J;up=O?(E-=I,f 8-J,O-=.!>O?O==0:E-A,O-!f39,9)):$; Q=Q-JQ))fo|V in = I ))V-A-! [V]-!1-U~24~~~T24,15},33}';G=/[^ $(-il-{}]/.exec(_);)with(_.split(G))_=join(shift());eval(_)
for(U in g)g[U[0]+[U[7]]+[U[13]]]=g[U];
with(g){
// createProgramm()
P=cr();
// shaderSource(C=createShader(VERTEX_SHADER))
so(C=ch(VS--),`
attribute vec4 V;
// L
// /\
// / \
// P---R
// n = cross(R-P, L-P)
attribute vec3 P,R,L;
varying lowp float C;
void main(){
gl_Position=vec4(
// x
(vec3(V)+mat3(
mat2(
cos(V.w),
-V.w,
V.w,
cos(V.w)
)
)*P).x*${dBH}./${dBW}.,
// y
(vec3(V)+mat3(
mat2(
cos(V.w),
-V.w,
V.w,
cos(V.w)
)
)*P).y-.01,
// z
-.01,
// w
(vec3(V)+mat3(
mat2(
cos(V.w),
-V.w,
V.w,
cos(V.w)
)
)*P).z+.2);
// color
C=dot(
normalize(
mat3(
mat2(
cos(V.w),
-V.w,
V.w,
cos(V.w)
)
// invert normal
)*cross(P-L,P-R)),
// invert light
vec3(.8,.6,.7)
);
}
`);
// compileShader(C)
cS(C);
// attachShader(P,C)
ah(P,C);
// initialize plane and missile
A=B=T=O=0;
// shaderSource(C=createShader(FRAGMENT_SHADER))
so(C=ch(VS--),`
varying lowp float C;
void main(){
gl_FragColor=vec4(vec3(C),1);
}
`);
cS(C);
ah(P,C);
// clear(0,0,0,1)
cl(
// linkProgram(P)
lg(P),
// useProgram(P)
ur(P),
// bindBuffer(ARRAY_BUFFER, createBuffer())
bf(AU,cu()),
1
);
// bufferData(ARRAY_BUFFER, Float32Array.from(''), STATIC_DRAW)
// Data structure:
// |PPP PPP PPP|RRR RRR RRR|LLL LLL LLL|
// | 4 + 4 + 4 | 4 + 4 + 4 | 4 + 4 + 4 | 36 b
ba(AU,Float32Array.from(
// Building
`[O[OOOOO[`+
`OO[O OO [`+
`OOO[ OO O`+
`[ O[O[[ [`+
`[O[[OOOOO`+
`OO[OOOO O`+
`OOO[OO[ O`+
`[ O[OO[O[`+
// Aircraft
`TOJJOJOOV`+
`OQRQOQOOJ`+
`SOHOOJTOJ`+
`OQROOJMOQ`+
`KOHJOJOOJ`+
// Missile
`POOOPOOOV`+
`OOVOPONOO`+
`OPOPOONOO`.replace(
// Split each face into vertices
/(...)(...)(...)/g,
// Transform each face into the pairs of edges. It will allow us
// to calculate the normals in the vertex shader.
`$1$3$2$2$1$3$3$2$1`
),
// Convert each character to the float in a range [-0.5; 0.5]
U=>(U.charCodeAt()-32)/94-.5),SD);
// enable(DEPTH_TEST)
e(DE);
// Enable attributes: (P)oint, (R)ight, (L)eft
for(U in Q=`PRL`)eet(git(P,Q[U]),vto(git(P,Q[U]),3,F,0,36,U*12));
// Change flight direction
onmousemove=U=>T=U.clientX/dBW-.5;
// Lunch the missile
Z=U=>(O=1,E=A,f=B);
// Create the city - random map of heights
Q=Array.from(Array(16),U=>Array.from(Array(16),Math.random));
// Game loop
setInterval(U=>{
// clear(COLOR_BUFFER_BIT|DEPTH_BUFFER_BIT)
clear(16640);
// Update aircraft position
A+=.2*T;
B+=.2;
// Detect the transition from one cell to another
I=A>>0;
J=B>>0;
// Update aircraft position in the cell
A-=I;
B-=J;
// Activate missile launcher :)
onmouseup=O?(
// Update missile position
E-=I,
f+=.28-J,
O-=1/8*.1,
// Check target hit
Q[8-f>>0][8+E>>0]>O
// Mark building as destroyed
?O=Q[8-f>>0][8+E>>0]=0
// Render the missile
// vertexAttrib4fv(getAttribLocation(P,`V`), [...])
:vtf(
// getAttribLocation(P,`V`)
git(P,`V`),
[
// x
1/8*E-1/8*A,
// y
O-1,
// z
1/8*f-1/8*B,
// roll angle
0
]
),
// drawArrays(TRIANGLES, ...)
da(4,39,9))
:Z;
// Render the City
// Shift the rows
for(U in Q=Q.splice(-J).concat(Q))
// Shift the columns
for(V in Q[U]=Q[U].splice(I).concat(Q[U]))
vtf(
git(P,`V`),
[
// x
1/8*V-1/8*A-1,
// y
Q[U][V]-1,
// z
1-1/8*U-1/8*B,
// roll angle
0
]
),
da(4,0,24);
// Render aircraft
vtf(
git(P,`V`),
[
// x
0,
// y
0,
// z
0,
// roll angle (here it is!)
T
]
),
da(4,24,15);
},33);
}
