Difference between revisions of "Aiming"
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(Created page with "<edcode> var t=0.0; var speed=0.02; var ax=100; var ay=320; var bx=400; var by=200; var annotation = ""; var dataNote = ""; var dataNote2 = ""; function loop() { if (t>=...") |
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| Line 1: | Line 1: | ||
| − | + | Run this program to see an animated diagram shoing how to find a direction towards another point. | |
| + | |||
| + | <edcode> | ||
var t=0.0; | var t=0.0; | ||
var speed=0.02; | var speed=0.02; | ||
| Line 138: | Line 140: | ||
speed=0.003; | speed=0.003; | ||
loop(); | loop(); | ||
| − | annotation="When the points are different the distance should stay the same"; | + | annotation="When the points are different the move distance should stay the same"; |
| − | dataNote+=", | + | dataNote+=", the move distance we want is 30"; |
} | } | ||
| Line 146: | Line 148: | ||
vector(30); | vector(30); | ||
annotation="To find x and y movement we reduce both values by the same amount"; | annotation="To find x and y movement we reduce both values by the same amount"; | ||
| − | dataNote+=", | + | dataNote+=", the move distance we want is 30"; |
} | } | ||
| Line 171: | Line 173: | ||
annotation="The angles stay the same if the sides are divided by the same amount"; | annotation="The angles stay the same if the sides are divided by the same amount"; | ||
triangleNote(); | triangleNote(); | ||
| − | dataNote+=", | + | dataNote+=", the move distance we want is 30"; |
var newdx=dx*scale; | var newdx=dx*scale; | ||
| Line 177: | Line 179: | ||
var newd = Math.sqrt(newdx*newdx+newdy*newdy); | var newd = Math.sqrt(newdx*newdx+newdy*newdy); | ||
var div = d/newd*30; | var div = d/newd*30; | ||
| − | + | ||
| + | setColour("magenta"); | ||
| + | print("Distance to Move = "+d.toFixed(1)+ " / " +div.toFixed(1) +" * 30 = " +(newd).toFixed(1), 100,50); | ||
| + | setColour("blue"); | ||
| + | print("X Movement value = "+(bx-ax).toFixed(1)+ " / " +div.toFixed(1) +" * 30 = " +(newdx).toFixed(1),100,80); | ||
| + | setColour("green"); | ||
| + | print("Y Movement value = "+(by-ay).toFixed(1)+ " / " +div.toFixed(1) +" * 30 = " +(newdy).toFixed(1),100,110); | ||
| + | |||
} | } | ||
| Line 190: | Line 199: | ||
setColour("black"); | setColour("black"); | ||
| − | print(annotation); | + | print(annotation,4,22); |
setColour("grey"); | setColour("grey"); | ||
print("ax = "+ax.toFixed(0)+" bx = "+bx.toFixed(0)+" dx = bx-ax = " + (bx-ax).toFixed(0) ,100,370); | print("ax = "+ax.toFixed(0)+" bx = "+bx.toFixed(0)+" dx = bx-ax = " + (bx-ax).toFixed(0) ,100,370); | ||
| − | print("ay = "+ay.toFixed(0)+" by = "+by.toFixed(0)+" dy = by-ay = " + ( | + | print("ay = "+ay.toFixed(0)+" by = "+by.toFixed(0)+" dy = by-ay = " + (by-ay).toFixed(0) ,100,400); |
print(dataNote,4,430); | print(dataNote,4,430); | ||
print(dataNote2,4,460); | print(dataNote2,4,460); | ||
| − | + | ||
| + | if (part+1<parts.length ) { | ||
| + | setColour("black"); | ||
| + | print("Pres Space to continue.",220,470); | ||
| + | |||
| + | } | ||
t+=speed; | t+=speed; | ||
if (t>1) { | if (t>1) { | ||
| Line 216: | Line 230: | ||
run(update); | run(update); | ||
| + | |||
</edcode> | </edcode> | ||
Revision as of 20:12, 27 June 2017
Run this program to see an animated diagram shoing how to find a direction towards another point.
