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/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* of the License, or(at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
#include "ags/plugins/ags_collision_detector/ags_collision_detector.h"
#include "ags/shared/util/geometry.h"
#include "common/config-manager.h"
namespace AGS3 {
namespace Plugins {
namespace AGSCollisionDetector {
#define CD_NORMAL 0
#define CD_DEBUG 1
#define CD_OBJECT 0
#define CD_CHARACTER 1
#define CD_SYS_ERROR -2
#define CD_PARAM_ERROR -1
#define CD_NO_COLLISION 0
#define CD_COLLISION 1
#define CD_OK 0
#define CD_IGNORED 1
bool find_overlapping_area(Rect r1, Rect r2, Rect *overlap);
const char *AGSCollisionDetector::AGS_GetPluginName() {
return "AGS Collision Detector";
}
void AGSCollisionDetector::AGS_EngineStartup(IAGSEngine *engine) {
PluginBase::AGS_EngineStartup(engine);
SCRIPT_METHOD(boundingBoxColDetect, AGSCollisionDetector::boundingBoxColDetect);
SCRIPT_METHOD(dumpInfo, AGSCollisionDetector::dumpInfo);
SCRIPT_METHOD(resetTransparencyThreshold, AGSCollisionDetector::resetTransparencyThreshold);
SCRIPT_METHOD(resetTransparentColor, AGSCollisionDetector::resetTransparentColor);
SCRIPT_METHOD(setDebugMode, AGSCollisionDetector::setDebugMode);
SCRIPT_METHOD(setTransparencyThreshold, AGSCollisionDetector::setTransparencyThreshold);
SCRIPT_METHOD(setTransparentColor, AGSCollisionDetector::setTransparentColor);
SCRIPT_METHOD(spritePixelColDetect, AGSCollisionDetector::spritePixelColDetect);
SCRIPT_METHOD(spriteSpriteColDetect, AGSCollisionDetector::spriteSpriteColDetect);
}
void AGSCollisionDetector::boundingBoxColDetect(ScriptMethodParams ¶ms) {
// PARAMS8(int, id1, int, type1, int, slot1, int, scale1, int, id2, int, type2, int, slot2, int, scale2);
// TODO
warning("STUB: AGSCollisionDetector::boundingBoxColDetect is not implemented");
params._result = CD_NO_COLLISION;
}
void AGSCollisionDetector::dumpInfo(ScriptMethodParams ¶ms) {
// TODO
warning("STUB: AGSCollisionDetector::dumpInfo is not implemented");
params._result = CD_IGNORED;
}
void AGSCollisionDetector::resetTransparencyThreshold(ScriptMethodParams ¶ms) {
transparencyTreshold = 100;
params._result = CD_OK;
}
void AGSCollisionDetector::resetTransparentColor(ScriptMethodParams ¶ms) {
transparentColor.r = 255;
transparentColor.g = 0;
transparentColor.b = 255;
params._result = CD_OK;
}
void AGSCollisionDetector::setDebugMode(ScriptMethodParams ¶ms) {
// PARAMS1(int, status);
// TODO
warning("STUB: AGSCollisionDetector::setDebugMode is not implemented");
params._result = CD_OK;
}
void AGSCollisionDetector::setTransparencyThreshold(ScriptMethodParams ¶ms) {
PARAMS1(int, trans_thresh);
if ((trans_thresh >= 0) && (trans_thresh <= 100)) {
transparencyTreshold = trans_thresh;
params._result = CD_OK;
} else
params._result = CD_PARAM_ERROR;
}
void AGSCollisionDetector::setTransparentColor(ScriptMethodParams ¶ms) {
PARAMS3(int, transparentRed, int, transparentGreen, int, transparentBlue);
if ((transparentRed < 0) || (transparentRed > 255) ||
(transparentGreen < 0) || (transparentGreen > 255) ||
(transparentBlue < 0) || (transparentBlue > 255)) {
params._result = CD_PARAM_ERROR;
return;
} else {
transparentColor.r = transparentRed;
transparentColor.g = transparentGreen;
transparentColor.b = transparentBlue;
params._result = CD_OK;
}
}
void AGSCollisionDetector::spritePixelColDetect(ScriptMethodParams ¶ms) {
// PARAMS5(int, id, int, type, int, slot, int, pixelX, int, pixelY);
// TODO
warning("STUB: AGSCollisionDetector::spritePixelColDetect is not implemented");
params._result = CD_NO_COLLISION;
}
void AGSCollisionDetector::spriteSpriteColDetect(ScriptMethodParams ¶ms) {
PARAMS6(int, id1, int, type1, int, slot1, int, id2, int, type2, int, slot2);
int32 spr1_w, spr1_h; // sprite sizes
int32 spr2_w, spr2_h;
Rect r1, r2;
Rect overlap(0, 0, 0, 0);
BITMAP *sprite1 = _engine->GetSpriteGraphic(slot1);
BITMAP *sprite2 = _engine->GetSpriteGraphic(slot2);
_engine->GetBitmapDimensions(sprite1, &spr1_w, &spr1_h, nullptr);
_engine->GetBitmapDimensions(sprite2, &spr2_w, &spr2_h, nullptr);
if (type1 == CD_OBJECT) { // object
if (id1 < _engine->GetNumObjects()) {
AGSObject *obj1 = _engine->GetObject(id1);
r1.Left = obj1->x;
r1.Top = obj1->y - spr1_h;
r1.Right = obj1->x + spr1_w;
r1.Bottom = obj1->y;
}
} else { // character
if (id1 < _engine->GetNumCharacters()) {
AGSCharacter *ch1 = _engine->GetCharacter(id1);
r1.Left = ch1->x - (spr1_w / 2);
r1.Top = ch1->y - spr1_h;
r1.Right = ch1->x + (spr1_w / 2);
r1.Bottom = ch1->y;
}
}
if (type2 == CD_OBJECT) { // object
if (id2 < _engine->GetNumObjects()) {
AGSObject *obj2 = _engine->GetObject(id2);
r2.Left = obj2->x;
r2.Top = obj2->y - spr2_h;
r2.Right = obj2->x + spr2_w;
r2.Bottom = obj2->y;
}
} else { // character
if (id2 < _engine->GetNumCharacters()) {
AGSCharacter *ch2 = _engine->GetCharacter(id2);
r2.Left = ch2->x - (spr2_w / 2);
r2.Top = ch2->y - spr2_h;
r2.Right = ch2->x + (spr2_w / 2);
r2.Bottom = ch2->y;
}
}
// WORKAROUND for bee sprite in Bear Story
if ((ConfMan.get("gameid") == "bear") && (slot1 == 87)) {
r1.Bottom -= 9;
}
if (find_overlapping_area(r1, r2, &overlap)) {
params._result = CD_COLLISION;
return;
}
params._result = CD_NO_COLLISION;
}
bool find_overlapping_area(Rect r1, Rect r2, Rect *overlap) {
overlap->Left = MAX(r1.Left, r2.Left);
overlap->Top = MAX(r1.Top, r2.Top);
overlap->Right = MIN(r1.Right, r2.Right);
overlap->Bottom = MIN(r1.Bottom, r2.Bottom);
if (overlap->Left >= overlap->Right || overlap->Top >= overlap->Bottom) // degenerate rect means no overlap
return false;
return true;
}
} // namespace AGSCollisionDetector
} // namespace Plugins
} // namespace AGS3
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