asteriodsTry2/GraphicObject.cpp at main · msayers1/asteriodsTry2 · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
//
//  GraphicObject.cpp
//  Template Project
//
//  Created by Jean-Yves Hervé on 2023-10-05.
//

#include <iostream>
#include "glPlatform.h"
#include "GraphicObject.h"

using namespace earshooter;
using namespace std;

bool GraphicObject::drawAbsoluteBoxes_ = false;
bool GraphicObject::drawRelativeBoxes_ = false;


GraphicObject::GraphicObject(float x, float y, float angle)
	:	Object(x, y, angle),
		absoluteBox_(nullptr),
		relativeBox_(nullptr)
{}

GraphicObject::GraphicObject(const WorldPoint& pt, float angle)
	:	Object(pt, angle),
		absoluteBox_(nullptr),
		relativeBox_(nullptr)
{}

void GraphicObject::draw() const
{
	draw_();

	//	Unfortunately, we are back in the parent reference frame, so we need to
	//	apply the object's relative transformation again
	if (drawAbsoluteBoxes_)
	{
		// forces an update of the box
		getAbsoluteBox();

		glPushMatrix();
		glTranslatef(getX(), getY(), 0.f);
		//	no rotation for the absolute box
		absoluteBox_->draw();
		glPopMatrix();
	}
	if (drawRelativeBoxes_ && relativeBox_ != nullptr)
	{
		glPushMatrix();
		glTranslatef(getX(), getY(), 0.f);
		glRotatef(getAngle(), 0.f, 0.f, 1.f);
		relativeBox_->draw();
		glPopMatrix();
	}
}

void GraphicObject::setAbsoluteBoundingBox_(float xmin, float xmax, float ymin, float ymax) const
{
	if (absoluteBox_ != nullptr)
	{
		absoluteBox_->setDimensions(xmin, xmax, ymin, ymax);
	}
	else
	{
		absoluteBox_ = make_shared<BoundingBox>(xmin, xmax, ymin, ymax);
	}
}

void GraphicObject::setAbsoluteBoundingBox_(const WorldPoint& cornerUL, const WorldPoint& cornerLR) const
{
	if (absoluteBox_ != nullptr)
	{
		absoluteBox_->setDimensions(cornerUL, cornerLR);
	}
	else
	{
		absoluteBox_ = make_shared<BoundingBox>(cornerUL, cornerLR);
	}
}

void GraphicObject::setRelativeBoundingBox_(float xmin, float xmax, float ymin, float ymax) const
{
	if (relativeBox_ != nullptr)
	{
		relativeBox_->setDimensions(xmin, xmax, ymin, ymax);
	}
	else
	{
		relativeBox_ = make_shared<BoundingBox>(xmin, xmax, ymin, ymax);
	}
}

void GraphicObject::setRelativeBoundingBox_(const WorldPoint& cornerUL, const WorldPoint& cornerLR) const
{
	if (relativeBox_ != nullptr)
	{
		relativeBox_->setDimensions(cornerUL, cornerLR);
	}
	else
	{
		relativeBox_ = make_shared<BoundingBox>(cornerUL, cornerLR);
	}
}


void GraphicObject::setAbsoluteBoundingBoxColor_(ColorIndex color) const
{
	if (absoluteBox_ != nullptr)
	{
		absoluteBox_->setColor(color);
	}
}

void GraphicObject::setRelativeBoundingBoxColor_(ColorIndex color) const
{
	if (relativeBox_ != nullptr)
	{
		relativeBox_->setColor(color);
	}
}

const std::shared_ptr<BoundingBox> GraphicObject::getAbsoluteBox() const
{
	if (absoluteBox_ == nullptr){
		// float selfXmin = relativeBox_->getXmin() + getX();
		// float selfXmax = relativeBox_->getXmax() + getX();
		// float selfYmin = relativeBox_->getYmin() + getY();
		// float selfYmax = relativeBox_->getYmax() + getY();
		// absoluteBox_ = make_shared<BoundingBox>(selfXmin,selfXmax,selfYmin,selfYmax);
		absoluteBox_ = make_shared<BoundingBox>();
	}


	updateAbsoluteBox_();

	return absoluteBox_;
}

void GraphicObject::updateAbsoluteBox_() const
{
	float selfXmin = relativeBox_->getXmin() + getX();
	float selfXmax = relativeBox_->getXmax() + getX();
	float selfYmin = relativeBox_->getYmin() + getY();
	float selfYmax = relativeBox_->getYmax() + getY();
	float width = selfXmax - selfXmin;
	float height = selfYmax - selfYmin;
	float ca = cosf(getAngleRad()), sa = sinf(getAngleRad());
	float x1 = +0.5f * (ca*width + sa*height),
		  x2 = +0.5f * (ca*width - sa*height),
		  x3 = -x1,
		  x4 = -x2;
	float y1 = +0.5f * (sa*width + ca*height),
		  y2 = +0.5f * (sa*width - ca*height),
		  y3 = -y1,
		  y4 = -y2;
	// cout << "Update" << " | " << getX() << " | " << getY() << " | " << x1 << " | " << x2 << " | " << x3 << " | " << x4 << " | " << y1 << " | " << y2 << " | " << y3 << " | " << y4 << endl;

	setAbsoluteBoundingBox_(min(min(min(x1, x2), x3), x4), max(max(max(x1, x2), x3), x4),
							min(min(min(y1, y2), y3), y4), max(max(max(y1, y2), y3), y4));
}

bool GraphicObject::collision(std::shared_ptr<BoundingBox> otherBB){
	// cout << "Check: " << (absoluteBox_->getYmax() < otherBB->getYmin() || absoluteBox_->getYmin() < otherBB->getYmax()) << " | " << getX() << " | " << getY() << " | " << absoluteBox_->getYmax() << " | " << otherBB->getYmin() << " | " << absoluteBox_->getYmin() << " | " << otherBB->getYmax() << " | " <<  (absoluteBox_->getXmax() < otherBB->getXmin() || absoluteBox_->getXmin() < otherBB->getXmax()) << " | " <<  absoluteBox_->getXmax() << " | " <<  otherBB->getXmin() << " | " <<  absoluteBox_->getXmin() << " | " <<  otherBB->getXmax() << endl;
	// WorldPoint selfUL = (*relativeBox_).getCornerUL(); // max y min x
	// WorldPoint selfLR = (*relativeBox_).getCornerLR(); // min y max x
	// WorldPoint otherUL = (*otherBB).getCornerUL();
	// // WorldPoint otherLR = (*otherBB).getCornerLR();
	// float selfXmin = relativeBox_->getXmin() + getX();
	// float selfXmax = relativeBox_->getXmax() + getX();
	// float selfYmin = relativeBox_->getYmin() + getY();
	// float selfYmax = relativeBox_->getYmax() + getY();
	updateAbsoluteBox_();
	if(absoluteBox_->getYmax() < otherBB->getYmin() || absoluteBox_->getYmin() > otherBB->getYmax()){
		return false;
	}
	if(absoluteBox_->getXmax() < otherBB->getXmin() || absoluteBox_->getXmin() > otherBB->getXmax()){
		return false;
	}
	return true;
}