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-rw-r--r--GdiRadar/GdiRadar.cpp83
-rw-r--r--GdiRadar/GdiRadar.h12
-rw-r--r--GdiRadar/GdiRadarMain.cpp9
3 files changed, 86 insertions, 18 deletions
diff --git a/GdiRadar/GdiRadar.cpp b/GdiRadar/GdiRadar.cpp
index 7962f20..add5b72 100644
--- a/GdiRadar/GdiRadar.cpp
+++ b/GdiRadar/GdiRadar.cpp
@@ -7,16 +7,18 @@
#pragma comment(lib, "Gdi32.lib")
#define INVALID_MAP_VALUE ((UINT64)0)
-#define SCALE_X(posx) ((int)((float)GameMapWidth * (1000.0f / posx)))
-#define SCALE_Y(posy) ((int)((float)GameMapHeight * (1000.0f / posy)))
struct gdi_radar_drawing
{
HBRUSH EnemyBrush;
+ HPEN DefaultPen;
COLORREF TextCOLOR;
RECT DC_Dimensions;
HDC hdc;
+ UINT64 GameMapWindowWidth;
+ UINT64 GameMapWindowHeight;
+ bool StickToBottom;
};
struct gdi_radar_context
@@ -39,7 +41,7 @@ struct gdi_radar_context
};
-static void draw_entity(struct gdi_radar_context * const ctx, float posx, float posy, float health, enum entity_color color, const char *name)
+static void draw_entity(struct gdi_radar_context * const ctx, struct entity * const ent)
{
#if 0
RECT healthRect = { posx - 10, posy - 10, posx + 10, posy - 5 };
@@ -50,12 +52,32 @@ static void draw_entity(struct gdi_radar_context * const ctx, float posx, float
DT_SINGLELINE | DT_CENTER | DT_VCENTER);
#endif
- switch (color) {
+ switch (ent->color) {
case EC_RED:
- SetDCBrushColor(ctx->drawing.hdc, RGB(255, 0, 0));
+ SelectObject(ctx->drawing.hdc, ctx->drawing.EnemyBrush);
break;
}
- Ellipse(ctx->drawing.hdc, posx, posy, posx + 5, posy + 5);
+
+ float frealx = ent->pos[0] * ((float)ctx->drawing.GameMapWindowWidth / ctx->GameMapWidth);
+ float frealy = ent->pos[1] * ((float)ctx->drawing.GameMapWindowHeight / ctx->GameMapHeight);
+ int realx = (int)frealx;
+ int realy = (int)frealy;
+ Ellipse(ctx->drawing.hdc, realx - 5, realy - 5, realx + 5, realy + 5);
+}
+
+static void CalcGameToWindowDimensions(struct gdi_radar_context * const ctx)
+{
+ float aspectRatio = (float)ctx->GameMapWidth / ctx->GameMapHeight;
+ if (ctx->drawing.StickToBottom) {
+ float newWidth = (float)ctx->drawing.DC_Dimensions.bottom / aspectRatio;
+ ctx->drawing.GameMapWindowHeight = ctx->drawing.DC_Dimensions.bottom - 1;
+ ctx->drawing.GameMapWindowWidth = (UINT64)newWidth;
+ }
+ else {
+ float newHeight = (float)ctx->drawing.DC_Dimensions.right / aspectRatio;
+ ctx->drawing.GameMapWindowHeight = (UINT64)newHeight;
+ ctx->drawing.GameMapWindowWidth = ctx->drawing.DC_Dimensions.right - 1;
+ }
}
static LRESULT CALLBACK WndProc(HWND hwnd, UINT message, WPARAM wparam, LPARAM lparam)
@@ -90,12 +112,14 @@ static LRESULT CALLBACK WndProc(HWND hwnd, UINT message, WPARAM wparam, LPARAM l
std::cout << "WM_CREATE\n";
drawing->hdc = GetDC(hwnd);
drawing->EnemyBrush = CreateSolidBrush(RGB(255, 0, 0));
+ drawing->DefaultPen = CreatePen(PS_SOLID, 1, RGB(255, 255, 0));
drawing->TextCOLOR = RGB(0, 255, 0);
SetBkMode(drawing->hdc, TRANSPARENT);
return 0;
case WM_DESTROY:
std::cout << "WM_DESTROY\n";
DeleteObject(drawing->EnemyBrush);
+ DeleteObject(drawing->DefaultPen);
DeleteDC(drawing->hdc);
PostQuitMessage(0);
return 0;
@@ -106,8 +130,14 @@ static LRESULT CALLBACK WndProc(HWND hwnd, UINT message, WPARAM wparam, LPARAM l
PAINTSTRUCT ps;
BeginPaint(hwnd, &ps);
+
+ SelectObject(drawing->hdc, drawing->DefaultPen);
+ POINT lines[] = { { 0,0 }, { (LONG)drawing->GameMapWindowWidth, 0 },
+ { (LONG)drawing->GameMapWindowWidth, (LONG)drawing->GameMapWindowHeight },
+ { 0, (LONG)drawing->GameMapWindowHeight }, { 0,0 } };
+ Polyline(drawing->hdc, lines, 5);
for (auto& entity : wnd_ctx->entities) {
- draw_entity(wnd_ctx, entity.pos[0], entity.pos[1], entity.health, entity.color, entity.name);
+ draw_entity(wnd_ctx, &entity);
}
EndPaint(hwnd, &ps);
@@ -129,6 +159,8 @@ static LRESULT CALLBACK WndProc(HWND hwnd, UINT message, WPARAM wparam, LPARAM l
break;
case WM_SIZE:
std::cout << "WM_SIZE\n";
+ GetClientRect(hwnd, &drawing->DC_Dimensions);
+ CalcGameToWindowDimensions(wnd_ctx);
break;
}
@@ -211,12 +243,42 @@ bool gdi_radar_init(struct gdi_radar_context * const ctx)
return true;
}
+static void gdi_radar_check_entity_bounds(struct gdi_radar_context * const ctx,
+ struct entity * const ent)
+{
+ if (ent->pos[0] < 0)
+ {
+ ent->pos[0] = 0;
+ }
+ if (ent->pos[0] > ctx->GameMapWidth)
+ {
+ ent->pos[0] = (int)ctx->GameMapWidth;
+ }
+ if (ent->pos[1] < 0)
+ {
+ ent->pos[1] = 0;
+ }
+ if (ent->pos[1] > ctx->GameMapHeight)
+ {
+ ent->pos[1] = (int)ctx->GameMapHeight;
+ }
+}
+
void gdi_radar_add_entity(struct gdi_radar_context * const ctx,
- struct entity const * const ent)
+ struct entity * const ent)
{
+ gdi_radar_check_entity_bounds(ctx, ent);
ctx->entities.push_back(*ent);
}
+void gdi_radar_set_entity(struct gdi_radar_context * const ctx, size_t i,
+ struct entity * const ent)
+{
+ struct entity& found_ent = ctx->entities.at(i);
+ gdi_radar_check_entity_bounds(ctx, ent);
+ found_ent = *ent;
+}
+
void gdi_radar_clear_entities(struct gdi_radar_context * const ctx)
{
ctx->entities.clear();
@@ -237,17 +299,18 @@ bool gdi_radar_redraw_if_necessary(struct gdi_radar_context * const ctx)
<< ctx->maximumRedrawFails << " times!\n";
return false;
}
- RedrawWindow(ctx->myDrawWnd, NULL, NULL, RDW_INVALIDATE);
+ RedrawWindow(ctx->myDrawWnd, NULL, NULL, RDW_ERASE | RDW_INVALIDATE | RDW_ALLCHILDREN);
}
return true;
}
void gdi_radar_set_game_dimensions(struct gdi_radar_context * const ctx,
- UINT64 GameMapWidth, UINT64 GameMapHeight)
+ UINT64 GameMapWidth, UINT64 GameMapHeight, bool StickToBottom)
{
ctx->GameMapWidth = GameMapWidth;
ctx->GameMapHeight = GameMapHeight;
+ ctx->drawing.StickToBottom = StickToBottom;
}
static inline LRESULT
diff --git a/GdiRadar/GdiRadar.h b/GdiRadar/GdiRadar.h
index 22e2f92..da5258e 100644
--- a/GdiRadar/GdiRadar.h
+++ b/GdiRadar/GdiRadar.h
@@ -31,7 +31,7 @@ enum entity_color {
};
struct entity {
- float pos[2];
+ int pos[2];
float health;
enum entity_color color;
const char *name;
@@ -39,16 +39,18 @@ struct entity {
void gdi_radar_add_entity(struct gdi_radar_context * const ctx,
- struct entity const * const ent);
+ struct entity * const ent);
+void gdi_radar_set_entity(struct gdi_radar_context * const ctx, size_t i,
+ struct entity * const ent);
void gdi_radar_clear_entities(struct gdi_radar_context * const ctx);
bool gdi_radar_redraw_if_necessary(struct gdi_radar_context * const ctx);
void gdi_radar_set_game_dimensions(struct gdi_radar_context * const ctx,
- UINT64 GameMapWidth, UINT64 GameMapHeight);
+ UINT64 GameMapWidth, UINT64 GameMapHeight, bool StickToBottom = true);
static void gdi_radar_set_game_dimensions(struct gdi_radar_context * const ctx,
- float GameMapWidth, float GameMapHeight)
+ float GameMapWidth, float GameMapHeight, bool StickToBottom = true)
{
gdi_radar_set_game_dimensions(ctx,
- (UINT64)GameMapWidth, (UINT64)GameMapHeight);
+ (UINT64)GameMapWidth, (UINT64)GameMapHeight, StickToBottom);
}
LRESULT gdi_radar_process_window_events_blocking(struct gdi_radar_context * const ctx);
LRESULT gdi_radar_process_window_events_nonblocking(struct gdi_radar_context * const ctx); \ No newline at end of file
diff --git a/GdiRadar/GdiRadarMain.cpp b/GdiRadar/GdiRadarMain.cpp
index d8ed7e9..3d3fe32 100644
--- a/GdiRadar/GdiRadarMain.cpp
+++ b/GdiRadar/GdiRadarMain.cpp
@@ -32,11 +32,11 @@ int main()
std::cout << "Radar initialize failed\n";
}
- entity e1{ 0.0f, 0.0f, 100.0f, entity_color::EC_RED, "test" };
+ entity e1{ 0, 0, 100, entity_color::EC_RED, "test" };
gdi_radar_add_entity(ctx, &e1);
- entity e2{ 1000.0f, 1000.0f, 50.0f, entity_color::EC_RED, "m0wL" };
+ entity e2{ 1000, 1000, 50, entity_color::EC_RED, "m0wL" };
gdi_radar_add_entity(ctx, &e2);
- entity e3{ 500.0f, 500.0f, 80.0f, entity_color::EC_RED, "whiteshirt" };
+ entity e3{ 500, 500, 80, entity_color::EC_RED, "whiteshirt" };
gdi_radar_add_entity(ctx, &e3);
#if 0
@@ -45,6 +45,9 @@ int main()
do {
gdi_radar_redraw_if_necessary(ctx);
Sleep(200);
+
+ e3.pos[0]++;
+ gdi_radar_set_entity(ctx, 2, &e3);
} while (!gdi_radar_process_window_events_nonblocking(ctx));
#endif
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