From 37e364b2c6cc7487a1c888d256a73e5337bb7189 Mon Sep 17 00:00:00 2001
From: Ash Wolf <ninji@wuffs.org>
Date: Wed, 14 Jun 2023 00:50:34 +0100
Subject: initial commit

---
 src/T2DLL/T2Sprite.cpp | 157 +++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 157 insertions(+)
 create mode 100644 src/T2DLL/T2Sprite.cpp

(limited to 'src/T2DLL/T2Sprite.cpp')

diff --git a/src/T2DLL/T2Sprite.cpp b/src/T2DLL/T2Sprite.cpp
new file mode 100644
index 0000000..6f04e24
--- /dev/null
+++ b/src/T2DLL/T2Sprite.cpp
@@ -0,0 +1,157 @@
+#include "T2ImageObj.h"
+#include "T2Sprite.h"
+#include "T2SpriteObj.h"
+
+T2Sprite::T2Sprite() {
+	SetRectEmpty(&mUpdateRect);
+}
+
+/*virtual*/ T2Sprite::~T2Sprite() {
+	AllClear();
+}
+
+void T2Sprite::AllClear() {
+	POSITION p = GetHeadPosition();
+	while (p) {
+		T2SpriteObj *obj = GetNext(p);
+		delete obj;
+	}
+	RemoveAll();
+}
+
+int T2Sprite::NewSprite(T2ImageObj& imageObj, const CString& name, int layer) {
+	T2SpriteObj *obj = new T2SpriteObj;
+	obj->mImageObj = &imageObj;
+	obj->mName = name;
+
+	int index;
+	for (index = 0; ; index++) {
+		if (!FindObj(index))
+			break;
+	}
+	obj->mIndex = index;
+	obj->mLayer = layer;
+
+	int objIndex = imageObj.FindObject(name, -1, 0, 0, 255);
+	imageObj.GetObjectSize(objIndex, &obj->mSize);
+	AddTail(obj);
+	return index;
+}
+
+void T2Sprite::DeleteSprite(int index) {
+	POSITION p = GetHeadPosition();
+	while (p) {
+		POSITION prev = p;
+		T2SpriteObj *obj = GetNext(p);
+		if (obj->mIndex == index) {
+			RemoveAt(prev);
+			delete obj;
+			break;
+		}
+	}
+}
+
+T2SpriteObj* T2Sprite::FindObj(int index) {
+	POSITION p = GetHeadPosition();
+	while (p) {
+		T2SpriteObj *obj = GetNext(p);
+		if (obj->mIndex == index)
+			return obj;
+	}
+
+	return NULL;
+}
+
+void T2Sprite::ShowSprite(int index, BOOL show) {
+	T2SpriteObj *obj = FindObj(index);
+	if (obj) {
+		if (show)
+			obj->mShowCount++;
+		else
+			obj->mShowCount--;
+		AddUpdateRect(obj, obj->mPosition);
+	}
+}
+
+void T2Sprite::ChangePattern(int index, int pattern) {
+	T2SpriteObj *obj = FindObj(index);
+	obj->mPattern = pattern;
+	if (obj->mShowCount > 0)
+		AddUpdateRect(obj, obj->mPosition);
+}
+
+void T2Sprite::MoveSprite(int index, POINT pt) {
+	T2SpriteObj *obj = FindObj(index);
+	if (obj) {
+		if (obj->mShowCount > 0)
+			AddUpdateRect(obj, obj->mPosition);
+		obj->mPosition = pt;
+		if (obj->mShowCount > 0)
+			AddUpdateRect(obj, obj->mPosition);
+	}
+}
+
+void T2Sprite::UpdateSprite(int index) {
+	T2SpriteObj *obj = FindObj(index);
+	AddUpdateRect(obj, obj->mPosition);
+}
+
+void T2Sprite::GetSpriteRect(int index, RECT& outRect) {
+	T2SpriteObj *obj = FindObj(index);
+	outRect.left = obj->mPosition.x;
+	outRect.top = obj->mPosition.y;
+	outRect.right = obj->mPosition.x + obj->mSize.cx;
+	outRect.bottom = obj->mPosition.y + obj->mSize.cy;
+}
+
+void T2Sprite::GetUpdateRect(RECT* outRect, int factor) {
+	*outRect = mUpdateRect;
+
+	int divisor = 1 << factor;
+	outRect->top = (outRect->top >= 0) ? (outRect->top / divisor) : ((outRect->top - (divisor - 1)) / divisor);
+	outRect->left = (outRect->left >= 0) ? (outRect->left / divisor) : ((outRect->left - (divisor - 1)) / divisor);
+	outRect->bottom = (outRect->bottom >= 0) ? (outRect->bottom / divisor) : ((outRect->bottom - (divisor - 1)) / divisor);
+	outRect->right = (outRect->right >= 0) ? (outRect->right / divisor) : ((outRect->right - (divisor - 1)) / divisor);
+
+	SetRectEmpty(&mUpdateRect);
+}
+
+void T2Sprite::DrawLayer(T2BitImage* dest, int layer, int factor) {
+	POSITION p = GetHeadPosition();
+	while (p) {
+		T2SpriteObj *obj = GetNext(p);
+		if (obj->mLayer == layer)
+			DrawSprite(dest, obj, factor);
+	}
+}
+
+void T2Sprite::DrawSprite(T2BitImage* dest, T2SpriteObj* obj, int factor) {
+	if (obj->mShowCount > 0) {
+		RECT rect;
+		SetRect(
+			&rect,
+			obj->mPosition.x,
+			obj->mPosition.y,
+			obj->mPosition.x + obj->mSize.cx,
+			obj->mPosition.y + obj->mSize.cy
+		);
+
+		rect.top = rect.top / (1 << factor);
+		rect.left = rect.left / (1 << factor);
+		rect.bottom = rect.bottom / (1 << factor);
+		rect.right = rect.right / (1 << factor);
+
+		int objectID = obj->mImageObj->FindObject(obj->mName, obj->mPattern, 0, 0, 255);
+		if (objectID < 0)
+			return;
+
+		obj->mImageObj->DrawObject(dest, objectID, rect, factor, -1);
+	}
+}
+
+void T2Sprite::AddUpdateRect(T2SpriteObj* obj, POINT pt) {
+	RECT rect;
+
+	SetRect(&rect, pt.x, pt.y, pt.x + obj->mSize.cx, pt.y + obj->mSize.cy);
+	UnionRect(&mUpdateRect, &mUpdateRect, &rect);
+}
-- 
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