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Fix all S2D/Camera mismatches between window size and engine size #1191

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Fix all S2D/Camera mismatches between window size and engine size #1191

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6f0a4b7
Fix S2D event collisions for ScaleMode case
RigidOfficial Feb 7, 2024
a34a24d
Add engineScaleX/Y for all correct resizes.
RigidOfficial Feb 8, 2024
e9eeba7
Merge branch 'master' of https://github.com/HeapsIO/heaps into intera…
RigidOfficial Feb 8, 2024
bd872b0
Merge branch 'master' of https://github.com/HeapsIO/heaps into intera…
RigidOfficial Feb 27, 2024
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22 changes: 14 additions & 8 deletions h2d/Camera.hx
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Original file line number Diff line number Diff line change
Expand Up @@ -309,6 +309,9 @@ class Camera {
Requires Camera being attached to a Scene.
**/
inline function screenXToCamera( mx : Float, my : Float ) : Float {
mx *= scene.engineScaleX;
my *= scene.engineScaleY;

return sceneXToCamera((mx - scene.offsetX) / scene.viewportScaleX, (my - scene.offsetY) / scene.viewportScaleY);
}

Expand All @@ -318,25 +321,28 @@ class Camera {
Requires Camera being attached to a Scene.
**/
inline function screenYToCamera( mx : Float, my : Float ) : Float {
mx *= scene.engineScaleX;
my *= scene.engineScaleY;

return sceneYToCamera((mx - scene.offsetX) / scene.viewportScaleX, (my - scene.offsetY) / scene.viewportScaleY);
}

/**
Convert local camera position to absolute screen position.
Convert local camera position to absolute screen (engine) position.

Requires Camera being attached to a Scene.
**/
inline function cameraXToScreen( mx : Float, my : Float ) : Float {
return cameraXToScene(mx, my) * scene.viewportScaleX + scene.offsetX;
return (cameraXToScene(mx, my) * scene.viewportScaleX + scene.offsetX) * scene.engineScaleX;
}

/**
Convert local camera position to absolute screen position.
Convert local camera position to absolute screen (engine) position.

Requires Camera being attached to a Scene.
**/
inline function cameraYToScreen( mx : Float, my : Float ) : Float {
return cameraYToScene(mx, my) * scene.viewportScaleY + scene.offsetY;
return (cameraYToScene(mx, my) * scene.viewportScaleY + scene.offsetY) * scene.engineScaleY;
}

// Scene <-> Camera
Expand Down Expand Up @@ -380,8 +386,8 @@ class Camera {
@:dox(hide) @:noCompletion public function eventToCamera( e : hxd.Event ) {
var x = (e.relX - scene.offsetX) / scene.viewportScaleX - absX;
var y = (e.relY - scene.offsetY) / scene.viewportScaleY - absY;
e.relX = (x * matD - y * matC) * invDet;
e.relY = (-x * matB + y * matA) * invDet;
e.relX = (x * matD - y * matC) * invDet * scene.engineScaleX;
e.relY = (-x * matB + y * matA) * invDet * scene.engineScaleY;
}

/**
Expand All @@ -393,8 +399,8 @@ class Camera {
checkScene();
var x = (pt.x - scene.offsetX) / scene.viewportScaleX - absX;
var y = (pt.y - scene.offsetY) / scene.viewportScaleY - absY;
pt.x = (x * matD - y * matC) * invDet;
pt.y = (-x * matB + y * matA) * invDet;
pt.x = (x * matD - y * matC) * invDet * scene.engineScaleX;
pt.y = (-x * matB + y * matA) * invDet * scene.engineScaleY;
}

/**
Expand Down
17 changes: 17 additions & 0 deletions h2d/Scene.hx
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Original file line number Diff line number Diff line change
Expand Up @@ -157,6 +157,15 @@ class Scene extends Layers implements h3d.IDrawable implements hxd.SceneEvents.I
**/
public var viewportScaleY(default, null) : Float;

/**
Ratio of the engine-to-screen X mismatch in case of manual Engine.resize() calls.
**/
public var engineScaleX(default, null): Float;
/**
Ratio of the engine-to-screen Y mismatch in case of manual Engine.resize() calls.
**/
public var engineScaleY(default, null): Float;

/**
The current mouse X coordinates (in pixels) relative to the current `Scene.interactiveCamera`.
**/
Expand Down Expand Up @@ -251,6 +260,8 @@ class Scene extends Layers implements h3d.IDrawable implements hxd.SceneEvents.I
eventListeners = new Array();
shapePoint = new h2d.col.Point();
window = hxd.Window.getInstance();
engineScaleX = e.width / window.width;
engineScaleY = e.height / window.height;
posChanged = true;
}

Expand Down Expand Up @@ -334,6 +345,9 @@ class Scene extends Layers implements h3d.IDrawable implements hxd.SceneEvents.I
var engine = h3d.Engine.getCurrent();
if (engine == null) return;

engineScaleX = engine.width / window.width;
engineScaleY = engine.height / window.height;

inline function setSceneSize( w : Int, h : Int ) {
if ( w != this.width || h != this.height ) {
width = w;
Expand Down Expand Up @@ -523,8 +537,10 @@ class Scene extends Layers implements h3d.IDrawable implements hxd.SceneEvents.I
@:dox(hide) @:noCompletion
public function handleEvent( event : hxd.Event, last : hxd.SceneEvents.Interactive ) : hxd.SceneEvents.Interactive {
screenToViewport(event);

var ex = event.relX;
var ey = event.relY;

var index = last == null ? 0 : interactive.indexOf(cast last) + 1;
var pt = shapePoint;
for( idx in index...interactive.length ) {
Expand All @@ -539,6 +555,7 @@ class Scene extends Layers implements h3d.IDrawable implements hxd.SceneEvents.I

var dx = ex - i.absX;
var dy = ey - i.absY;

var rx = (dx * i.matD - dy * i.matC) * i.invDet;
var ry = (dy * i.matA - dx * i.matB) * i.invDet;

Expand Down