Modify a text file: $/7508n.pde
$/7508n.pde
//// CST 112 practice: array of Button objects //// 7417:bam String title= "CST 112 practice: array of Button objects."; String news= "(...)"; String notes= "'=' key for statistics; +/-/1 to speedup/slowdown/restart"; String author= "Prof.BAM"; float top, bottom=400; float speedup=1; int numbuttons=6; Button[] buttons= new Button[numbuttons]; int left=0, shoot=1, right=2, go=3, reset=4, quit=5; int numvarmits=10; Varmit[] varmits= new Varmit[numvarmits]; int maxtargets=10, numtargets=10; Target[] targets= new Target[maxtargets]; /* Button left= new Button( "LEFT", 100, 430 ); Button shoot= new Button( "SHOOT", 200, 430 ); Button right= new Button( "RIGHT", 300, 430 ); Button go= new Button( "GO", 500, 430, 255,100,0 ); */ void setup() { size(640, 480); top=height/6; bottom=height*5/6; // buttons[0]= new Button( "LEFT", 100, 430 ); buttons[1]= new Button( "SHOOT", 200, 430 ); buttons[2]= new Button( "RIGHT", 300, 430 ); buttons[3]= new Button( "GO", 500, 430, 100,255,100 ); buttons[4]= new Button( "RESET", 20, 50, 255,100,0 ); buttons[5]= new Button( "QUIT", width-90, 50, 200,250,250 ); reset(); key= '='; // Targets. float xt=100, yt=25; for (int j=0; j<numtargets; ++j) { targets[j] = new Target( xt, yt ); xt += 50; } println( numtargets ); } //// Reset: random # of varmits & targets. void reset() { numvarmits= int( random(2,10) ); for (int n=0; n<numvarmits; ++n) { varmits[n]= new Varmit(); } numtargets= int( random(1, maxtargets) ); } //// NEXT FRAME //// void draw() { scene(); targets(); //-- gun(); varmits(); buttons(); } void scene() { //// Draw the range, grass, and messages. //// background( 255, 200, 255 ); fill(100, 200, 100); rect( 0, height/6, width, height*2/3 ); float top=height/6, bottom=height*5/6; //// Waving grass //// stroke( 0, 150, 0 ); strokeWeight(3); float x; float y= height-10; for ( x=20; x<width-20; x+=15) { float wave= (mouseX-x) / 20; line (x+wave, y, x, y+20 ); } strokeWeight(1); // TITLE & NEWS // fill(0); text( title, 10, 10 ); text( notes, width/3, height-60 ); text( news, 400, 70 ); text( author, 30, height-10 ); // if (key == '=') stats(); if (key == '+') stats(); if (key == '-') stats(); if (key == '1') stats(); } //// Statistics re varmits. void stats() { //// Statistics re varmits. //// // List the x & y positions. float x=20, y=120; float xtot=0, ytot=0, dxtot=0, dytot=0; text( "There are now "+ numvarmits +" varmits running around!", x, y ); text( "There are "+ numtargets +" targets.", 400, y+15 ); // y += 30; text( "#\n-", x, y ); text( "X\n-", x+50, y ); text( "Y\n-", x+100, y ); text( "DX\n--", x+150, y ); text( "DY\n--", x+200, y ); y += 30; // for (int n=0; n<numvarmits; ++n) { text( n, x, y ); text( int(varmits[n].x), x+50, y ); text( int(varmits[n].y), x+100, y ); text( speedup*varmits[n].dx, x+150, y ); text( speedup*varmits[n].dy, x+200, y ); // xtot += varmits[n].x; ytot += varmits[n].y; y += 15; } y += 15; text( "SUM", x, y ); text( int(xtot), x+50, y ); text( int(ytot), x+100, y ); y += 15; text( "AVG", x, y ); text( int(xtot/numvarmits), x+50, y ); text( int(ytot/numvarmits), x+100, y ); y += 30; text( "speedup", x, y ); text( speedup, x+150, y ); } //// Targets void targets() { for (int j=0; j<numtargets; ++j) { targets[j].show(); } } // Varmits! void varmits() { for(int i=0; i<numvarmits; ++i) { varmits[i].move(); varmits[i].show(); } } // Buttons. void buttons() { fill(255); // Make buttons white. for (int j=0; j<numbuttons; ++j) { buttons[j].show(); } } //// EVENTS: mouse clicks, keys. void mousePressed() { news=""; String s= " button was clicked"; for (int j=0; j<numbuttons; ++j ) { if ( buttons[j].hit( mouseX, mouseY) ) { news= buttons[j].name + s; } } // if ( buttons[reset].hit( mouseX, mouseY) ) { reset(); } if ( buttons[quit].hit( mouseX, mouseY) ) { exit(); } // if ( buttons[left].hit( mouseX, mouseY) ) speedup *= 1.0 / 1.1; if ( buttons[right].hit( mouseX, mouseY) ) speedup *= 1.1; // 10% faster. if ( buttons[shoot].hit( mouseX, mouseY) ) { stats(); } } void keyPressed() { if (key == '+') speedup *= 1.1; // 10% faster. if (key == '-') speedup *= 1.0 / 1.1; if (key == '1') speedup = 1; } //// OBJECTS //// class Button { float x, y; float w=80, h=30, round=10; String name; int r=255, g=255, b=255; // CONSTRUCTORS // Button( String s, float x, float y ) { this.x=x; this.y=y; this.name= s; r=g=b=255; // Default color is white. } Button( String s, float x, float y, int r, int g, int b ) { this.x=x; this.y=y; this.name= s; // this.r=r; this.g=g; this.b=b; } // METHODS: show() displays the button. void show() { fill( r,g,b ); rect( x, y, w, h, round ); fill(0); // Black text. text( name, x+10, y+20 ); } // Return true if this button was clicked. boolean hit( float xx, float yy ) { if (xx < x || xx > x+w) return false; if (yy < y || yy > y+h) return false; return true; } } class Varmit { float x=100, y=200, dx=2, dy=1; float w=50, h=25; float r,g,b; int legs=6; //// CONSTRUCTOR(S) //// Varmit() { x= random( 50, width-50 ); y= random( 100, height-100 ); w= random( 30, 90 ); h= random( 15, 40 ); legs= int( random(2,20) ); dx= random( 0.5, 3 ); dy= random( 0.5, 2 ); // r= random(100,250); g= random(50,150); b= random(0,100); } void move() { float margin= 10 + 10*speedup; if (x>width-margin || x<margin) dx = -dx; x += dx*speedup; if (y>height-100-margin || y<100+margin) dy = -dy; y += dy*speedup; } void show() { fill( r,g,b ); ellipse( x, y, w, h ); // Head float headX= +20; if (dx<0) headX= -20; ellipse( x+headX, y-15, w/2, h/2 ); fill (255); ellipse( x+1.5*headX, y-20, 8, 8 ); fill (0,0,255); ellipse( x+1.7*headX, y-20, 4, 4 ); // float xleg=5+x-w/2, legspace=w/legs; float walk= 3; if ((frameCount/30) % 2 == 0) { walk= -3; } // for (int j=0; j<legs; ++j) { line (xleg, y+10, xleg-walk, y+30 ); xleg+=legspace; } } } class Target { float x, y; Target( float x, float y ) { this.x=x; this.y=y; } void show() { fill(255); fill(255, 255, 0); ellipse(x, y, 30, 30); fill(0); ellipse(x, y, 15, 15); } }