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Author: Subject: Trees are "trees"
dom cook
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Posts: 372
Registered: 4-3-2016
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[*] posted on 23-12-2016 at 10:05 PM
Trees are "trees"


I want lots of trees for a project and there's no way I was going to sit down and draw hundreds of them, so I've made a basic random tree generator.
At the moment it makes three varieties of tree but I'll add a couple more soon.





[Edited on 23-12-2016 by dom cook]

SNAP0003.png - 9kB
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dom cook
Div Pro
******




Posts: 372
Registered: 4-3-2016
Member Is Offline


[*] posted on 4-4-2017 at 03:21 PM


I just came here looking for the code for this and discovered I'd never posted it.
Fortunately, I found it elsewhere.

In case anyone is interested,

Code:
PROGRAM m7stuff; CONST GLOBAL ground_map; file1; map; ground_wide = 512; ground_high = 512; modex=1200; modey=700; splashes; mouse_x[1]; mouse_y[1]; mouse_Dx; mouse_dy; mouse_x0; mouse_y0; mouseleft; mouseright; treemap; //------------------------------------------------------------------------------------- BEGIN x=ground_wide/2; y=ground_high-32; maketreemaps(); mouse.x=100; mouse.y=100; map=makemap(); set_fps(60,0); write_int(0,10,10,0,&fps); set_mode(1200700); start_mode7(0,file1,ground_map,0,0,128); m7.height = 3210; m7.distance = 1144; m7.color = 210; m7.camera = map; m7.horizon =-1024; m7.focus = 500; m7.z = 0; mouse_handler(); dropper(x,y); loop if(key(_esc)) exit(0,0); end frame; end END //--------------------------------------------------------------------------- function maketreemaps(); begin treemap=new_map(200,200,5,199,0); frame; end //--------------------------------------------------------------------------- function mapdrawline(x0,y0,x1,y1,graph,pen); private length; i; px; py; begin length=fget_dist(x0,y0,x1,y1); for(i=0;i<=length;i+=1) px=x0+(i*1000/length)*(x1-x0)/1000; py=y0+(i*1000/length)*(y1-y0)/1000; map_xput(0,graph,pen,px,py,0,200,0); end end function plant_tree(x,y) private w; cx; cy; graph0; h; i;j; k; col=32; dcol; leaves[15]; points=360; variety; asp=1; fir=2; OAK=3; shrub=4; struct point[1] x; y; end edge; angle1; rad; dr; dy; begin variety=rand(asp,oak); switch (variety) case oak: h=rand(200,300); w=h-rand(0,h/4); cx=w/2; cy=9*h/20; graph0=new_map(w,h,w/2,h-1,4); tree(x,y,w,h,graph0); frame; for(i=0; i<16; i+=1) leaves[i]=new_map(5,5,2,2,col+i); end for(i=-w/10;i<=w/10; i+=1) for(j=h-1;j>=2*h/3; j-=1) map_put_pixel(0,graph0,w/2+i,j,118); end end tree(x,y,w,h,graph0); angle=90000; points=rand(20,30); for(i=0; i<points; i+=1) angle1=angle+360000/points; if(i==0) point.y=cy+get_disty(angle,cy-10); point.x=cx+get_distx(angle,cx-20); else point.x=point[1].x; point.y=point[1].y; end point[1].y=cy+get_disty(angle1,cy-10); point[1].x=cx+get_distx(angle1,cx-20); if(i<points-1) rad=fget_dist(point[1].x,point[1].y,cx,cy); dr=rand(-10,10); if(rand(0,5)==1) dr=-rad/4; end point[1].x=cx+get_distx(angle1,rad+dr); point[1].y=cy+get_disty(angle1,rad+dr); end mapdrawline(point[1].x,point[1].y,point.x,point.y,graph0,leaves[0]); frame; dcol=angle/60000; // map_put(0,graph0,leaves[0],point.x,point.y); angle=angle1; end end case asp: h=rand(200,300); w=h/3+rand(h/20,h/10); cx=w/2; cy=4*h/10; graph0=new_map(w,h,w/2,h-1,4); tree(x,y,w,h,graph0); for(i=0; i<16; i+=1) leaves[i]=new_map(5,5,2,2,col+i); end for(i=-w/10;i<=w/10; i+=1) for(j=h-1;j>=2*h/3; j-=1) map_put_pixel(0,graph0,w/2+i,j,118); end end frame; angle=90000; for(i=0; i<=points; i+=1) point.y=cy+get_disty(angle,cy-1); point.x=cx+get_distx(angle,cx-20)*point.y/cy; dcol=angle/60000; map_put(0,graph0,leaves[0],point.x,point.y); angle+=360000/points; end frame; end case fir: h=rand(200,300); w=h/3+rand(h/10,h/5); cx=w/2; cy=4*h/10; graph0=new_map(w,h,w/2,h-1,4); for(i=0; i<16; i+=1) leaves[i]=new_map(5,5,2,2,col+i); end for(i=-w/10;i<=w/10; i+=1) for(j=h-1;j>=2*h/3; j-=1) map_put_pixel(0,graph0,w/2+i,j,118); end end tree(x,y,w,h,graph0); point.x=w-1; point.y=85*h/100; points=rand(3,6); point[1].x=0; point[1].y=0; dy=point.y/points; for(k=1; k<=points; k+=1) j=k*dy; i=(j*1000/point.y)*(cx-10)/1000; map_put(0,graph0,leaves[0],cx+i,j); map_put(0,graph0,leaves[0],cx-i,j); mapdrawline(cx+point[1].x,point[1].y,cx+i+5,j,graph0,leaves[0]) ; frame; mapdrawline(cx-point[1].x,point[1].y,cx-i-5,j,graph0,leaves[0]) ; frame; point[1].x=i; point[1].y=j; end mapdrawline(cx-i,j,cx+i,j,graph0,leaves[0]) ; for(i=0; i<w; i+=1) j=85*h/100; map_put(0,graph0,leaves[0],i,j); end end default: end end for(i=0; i<w; i+=1) for(j=0; j<h; j+=1) edge=map_get_pixel(0,graph0,i,j); if(edge==4) map_put_pixel(0,graph0,i,j,0); else if(edge==118) map_put_pixel(0,graph0,i,j,114); else break; END end end for(j=h-1; j>=0; j-=1) edge=map_get_pixel(0,graph0,i,j); if(edge==4) map_put_pixel(0,graph0,i,j,0); else if(edge==118) map_put_pixel(0,graph0,i,j,114); else break; end end end end for(j=0; j<h; j+=1) for(i=0; i<w; i+=1) edge=map_get_pixel(0,graph0,i,j); if(edge<>COL and edge <>114) map_put_pixel(0,graph0,i,j,0); else break; end end for(i=w-1; i>=0; i-=1) edge=map_get_pixel(0,graph0,i,j); if(edge<>COL and edge <>114) map_put_pixel(0,graph0,i,j,0); else break; end end end frame; for(i=0; i<w; i+=1) for(j=0; j<h; j+=1) edge=map_get_pixel(0,graph0,i,j); if(edge==4 or edge==118); // map_put(0,graph,leaves[2],i,j); map_put_pixel(0,graph0,i,j,col+2); end end end frame; for(i=0; i<16; i+=1) unload_map(leaves[i]); end end process tree(x,y,w,h,graph) begin ctype=c_m7; loop frame; end end //--------------------------------------------------------------------------- PROCESS makemap() PRIVATE i; j; BEGIN ctype = c_m7; x=ground_wide/2; y=ground_high/2; angle=30000; ground_map =new_map(ground_wide,ground_high,ground_wide/2,ground_high/2,6); loop if(key(_left)) angle-=1000; end if(key(_right)) angle+=1000; end frame; end END PROCESS dropper(x,y); PRIVATE spl; txt[4]; j; BEGIN ctype=c_m7; priority=-1; z=1; height =100; graph=new_map(10,40,5,0,26); // mouse.graph=graph; x=255; y=255; LOOP mouse_dx=mouse.x-mouse_x0; mouse_dy=mouse.y-mouse_y0; x+=-get_distx(m7.camera.angle,mouse_dy)-get_disty(m7.camera.angle,mouse_dx); if(x<0) x=0; end if(x>ground_wide) x=ground_wide; end y+=get_distx(m7.camera.angle,mouse_dx)-get_disty(m7.camera.angle,mouse_dy); if(y<0) y=0; end if(y>ground_high) y=ground_high; end if(mouse.left) if(mouseleft==0) plant_tree(x,y); end mouseleft=1; else mouseleft=0; end FRAME; delete_text(txt); END end process mouse_handler() private f; j; begin priority=-100; mouse.x=100; mouse.y=100; for(j=0; j<1; j+=1) mouse_x[j]=mouse.x; mouse_y[j]=mouse.y; end mouse_x0=mouse.x; mouse_y0=mouse.y; mouse_dx=0; mouse_dy=0; loop f+=1; f=f mod 1; mouse_x[f]=mouse.x; mouse_y[f]=mouse.y; mouse_x0=mouse_x[f]; mouse_y0=mouse_y[f]; write(0,100,10,0,"MODE7 MOUSE DEMO"); write(0,100,20,0,"rotate view with _left, _right"); write(0,100,30,0,"left click for a tree"); write(0,100,40,0,"press _esc to exit"); frame; mouse_dx=mouse.x-100; mouse_dy=mouse.y-100; mouse.x-=mouse_dx; mouse.y-=mouse_dy; for(j=0; j<=1;j+=1) mouse_x[f]-=mouse_dx; mouse_y[f]-=mouse_dy; end end end
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