static void wz_draw_3d_rectangle(float x1, float y1, float x2, float y2, float border, ALLEGRO_COLOR col, bool invert)
{
ALLEGRO_VERTEX vtx[6];
ALLEGRO_COLOR hi, lo;
int ii;
if(invert)
{
lo = wz_scale_color(col, 1.5);
hi = wz_scale_color(col, 0.5);
}
else
{
hi = wz_scale_color(col, 1.5);
lo = wz_scale_color(col, 0.5);
}
for(ii = 0; ii < 6; ii++)
{
vtx[ii].color = hi;
vtx[ii].z = 0;
}
vtx[0].x = x1 + border; vtx[0].y = y1 + border;
vtx[1].x = x1 + border; vtx[1].y = y2 - border;
vtx[2].x = x1; vtx[2].y = y2;
vtx[3].x = x1; vtx[3].y = y1;
vtx[4].x = x2; vtx[4].y = y1;
vtx[5].x = x2 - border; vtx[5].y = y1 + border;
al_draw_prim(vtx, 0, 0, 0, 6, ALLEGRO_PRIM_TRIANGLE_FAN);
vtx[0].x = x2 - border; vtx[0].y = y2 - border;
vtx[1].x = x1 + border; vtx[1].y = y2 - border;
vtx[2].x = x1; vtx[2].y = y2;
vtx[3].x = x2; vtx[3].y = y2;
vtx[4].x = x2; vtx[4].y = y1;
vtx[5].x = x2 - border; vtx[5].y = y1 + border;
for(ii = 0; ii < 6; ii++)
{
vtx[ii].color = lo;
}
al_draw_prim(vtx, 0, 0, 0, 6, ALLEGRO_PRIM_TRIANGLE_FAN);
al_draw_filled_rectangle(x1 + border, y1 + border, x2 - border, y2 - border, col);
}
ALLEGRO_BITMAP *generate_triangle_bitmap(float x1, float y1, float x2, float y2, float x3, float y3, ALLEGRO_COLOR col)
{
// find the width and height of the bitmap (this could be more comprehensive? What about -negative points?)
float max_x = std::max(std::max(x1, x2), x2);
float max_y = std::max(std::max(y1, y2), y3);
// start drawing
ALLEGRO_BITMAP *surface = al_create_bitmap(max_x, max_y);
ALLEGRO_STATE state;
al_store_state(&state, ALLEGRO_STATE_TARGET_BITMAP);
al_clear_to_color(color::transparent);
al_set_target_bitmap(surface);
// build our triangle
ALLEGRO_VERTEX v[3];
v[0] = build_vertex(x1, y1, 0, col, 0, 0);
v[1] = build_vertex(x2, y2, 0, col, 0, 0);
v[2] = build_vertex(x3, y3, 0, col, 0, 0);
// draw the triangle
al_draw_prim(v, NULL, NULL, 0, 3, ALLEGRO_PRIM_TRIANGLE_LIST);
// restore drawing state
al_restore_state(&state);
return surface;
}
ALLEGRO_BITMAP *generate_gradient_bitmap(float size, ALLEGRO_COLOR top_color, ALLEGRO_COLOR bottom_color, int padding)
{
// set everything up for rendering
int w = size;
int h = size;
ALLEGRO_BITMAP *surface = al_create_bitmap(w, h);
ALLEGRO_STATE previous_state;
al_store_state(&previous_state, ALLEGRO_STATE_TARGET_BITMAP);
// start drawing on the bitmap
al_set_target_bitmap(surface);
al_clear_to_color(color::transparent);
// build the gradient as a primitive
ALLEGRO_VERTEX v[4];
v[0] = build_vertex(0+padding, 0+padding, 0, top_color, 0, 0);
v[1] = build_vertex(w-padding, 0+padding, 0, top_color, 0, 0);
v[2] = build_vertex(w-padding, h-padding, 0, bottom_color, 0, 0);
v[3] = build_vertex(0+padding, h-padding, 0, bottom_color, 0, 0);
// draw it to the surface
al_draw_prim(v, NULL, NULL, 0, 4, ALLEGRO_PRIM_TRIANGLE_FAN);
// restore everything back to where it was
al_restore_state(&previous_state);
// return the generated image
return surface;
}
static duk_ret_t
js_PointSeries(duk_context* ctx)
{
duk_require_object_coercible(ctx, 0);
color_t color = duk_require_sphere_color(ctx, 1);
size_t num_points;
int x, y;
ALLEGRO_VERTEX* vertices;
ALLEGRO_COLOR vtx_color;
size_t i;
if (!duk_is_array(ctx, 0))
duk_error_ni(ctx, -1, DUK_ERR_ERROR, "PointSeries(): First argument must be an array");
duk_get_prop_string(ctx, 0, "length"); num_points = duk_get_uint(ctx, 0); duk_pop(ctx);
if (num_points < 1)
duk_error_ni(ctx, -1, DUK_ERR_RANGE_ERROR, "PointSeries(): One or more vertices required");
if (num_points > INT_MAX)
duk_error_ni(ctx, -1, DUK_ERR_RANGE_ERROR, "PointSeries(): Too many vertices");
if ((vertices = calloc(num_points, sizeof(ALLEGRO_VERTEX))) == NULL)
duk_error_ni(ctx, -1, DUK_ERR_ERROR, "PointSeries(): Failed to allocate vertex buffer");
vtx_color = nativecolor(color);
for (i = 0; i < num_points; ++i) {
duk_get_prop_index(ctx, 0, (duk_uarridx_t)i);
duk_get_prop_string(ctx, 0, "x"); x = duk_require_int(ctx, -1); duk_pop(ctx);
duk_get_prop_string(ctx, 0, "y"); y = duk_require_int(ctx, -1); duk_pop(ctx);
duk_pop(ctx);
vertices[i].x = x + 0.5; vertices[i].y = y + 0.5;
vertices[i].color = vtx_color;
}
al_draw_prim(vertices, NULL, NULL, 0, (int)num_points, ALLEGRO_PRIM_POINT_LIST);
free(vertices);
return 0;
}
static void FilledTexturePrimitives(int mode)
{
static ALLEGRO_VERTEX vtx[21];
if (mode == INIT) {
int ii = 0;
for (ii = 0; ii < 21; ii++) {
float x, y;
ALLEGRO_COLOR color;
if (ii % 2 == 0) {
x = 150 * cosf((float)ii / 20 * 2 * ALLEGRO_PI);
y = 150 * sinf((float)ii / 20 * 2 * ALLEGRO_PI);
} else {
x = 200 * cosf((float)ii / 20 * 2 * ALLEGRO_PI);
y = 200 * sinf((float)ii / 20 * 2 * ALLEGRO_PI);
}
if (ii == 0) {
x = y = 0;
}
color = al_map_rgb((7 * ii + 1) % 3 * 64, (2 * ii + 2) % 3 * 64, (ii) % 3 * 64);
vtx[ii].x = x; vtx[ii].y = y; vtx[ii].z = 0;
vtx[ii].u = 64 * x / 100; vtx[ii].v = 64 * y / 100;
if(ii < 10)
vtx[ii].color = al_map_rgba_f(1, 1, 1, 1);
else
vtx[ii].color = color;
}
} else if (mode == LOGIC) {
Theta += Speed;
al_build_transform(&MainTrans, ScreenW / 2, ScreenH / 2, 1, 1, Theta);
} else if (mode == DRAW) {
if (Blend)
al_set_blender(ALLEGRO_ADD, ALLEGRO_ONE, ALLEGRO_ONE);
else
al_set_blender(ALLEGRO_ADD, ALLEGRO_ONE, ALLEGRO_ZERO);
al_use_transform(&MainTrans);
al_draw_prim(vtx, 0, Texture, 0, 6, ALLEGRO_PRIM_TRIANGLE_FAN);
al_draw_prim(vtx, 0, Texture, 7, 13, ALLEGRO_PRIM_TRIANGLE_LIST);
al_draw_prim(vtx, 0, Texture, 14, 20, ALLEGRO_PRIM_TRIANGLE_STRIP);
al_use_transform(&Identity);
}
}
void twoDPrimitive::draw(){
ALLEGRO_BITMAP* texture = NULL;
if(this->texture != NULL)
texture = this->texture->getBitmap();
al_draw_prim(this->vertices, NULL, texture, 0, this->numVertices, this->type);
}
static void TexturePrimitives(int mode)
{
static ALLEGRO_VERTEX vtx[13];
static ALLEGRO_VERTEX vtx2[13];
if (mode == INIT) {
int ii = 0;
ALLEGRO_COLOR color;
for (ii = 0; ii < 13; ii++) {
float x, y;
x = 200 * cosf((float)ii / 13.0f * 2 * ALLEGRO_PI);
y = 200 * sinf((float)ii / 13.0f * 2 * ALLEGRO_PI);
color = al_map_rgb((ii + 1) % 3 * 64, (ii + 2) % 3 * 64, (ii) % 3 * 64);
vtx[ii].x = x; vtx[ii].y = y; vtx[ii].z = 0;
vtx2[ii].x = 0.1 * x; vtx2[ii].y = 0.1 * y;
vtx[ii].u = 64 * x / 100; vtx[ii].v = 64 * y / 100;
vtx2[ii].u = 64 * x / 100; vtx2[ii].v = 64 * y / 100;
if(ii < 10)
vtx[ii].color = al_map_rgba_f(1, 1, 1, 1);
else
vtx[ii].color = color;
vtx2[ii].color = vtx[ii].color;
}
} else if (mode == LOGIC) {
Theta += Speed;
al_build_transform(&MainTrans, ScreenW / 2, ScreenH / 2, 1, 1, Theta);
} else if (mode == DRAW) {
if (Blend)
al_set_blender(ALLEGRO_ADD, ALLEGRO_ONE, ALLEGRO_ONE);
else
al_set_blender(ALLEGRO_ADD, ALLEGRO_ONE, ALLEGRO_ZERO);
al_use_transform(&MainTrans);
al_draw_prim(vtx, 0, Texture, 0, 4, ALLEGRO_PRIM_LINE_LIST);
al_draw_prim(vtx, 0, Texture, 4, 9, ALLEGRO_PRIM_LINE_STRIP);
al_draw_prim(vtx, 0, Texture, 9, 13, ALLEGRO_PRIM_LINE_LOOP);
al_draw_prim(vtx2, 0, Texture, 0, 13, ALLEGRO_PRIM_POINT_LIST);
al_use_transform(&Identity);
}
}
int main(void)
{
al_init();
ALLEGRO_DISPLAY *d = al_create_display(W, H);
ALLEGRO_VERTEX v[POINTS];
ALLEGRO_COLOR c;
v[0].x = 0;
v[0].y = 0;
c = al_map_rgb(rand()%256, rand()%256, rand()%256);
v[0].color = al_get_prim_color(c);
v[1].x = 0+R;
v[1].y = 0;
c = al_map_rgb(rand()%256, rand()%256, rand()%256);
v[1].color = al_get_prim_color(c);
float a = 0;
float r = R;
int i;
for (i = 2; i < POINTS; i++) {
v[i].x = 0+cos(a)*r;
v[i].y = 0+sin(a)*r;
a += 0.3f;
r -= 1.5f;
c = al_map_rgb(rand()%256, rand()%256, rand()%256);
v[i].color = al_get_prim_color(c);
}
int frames = 0;
ALLEGRO_TRANSFORM t;
while (true) {
al_clear_to_color(al_map_rgb(0, 0, 0));
al_identity_transform(&t);
al_rotate_transform(&t, frames*0.1f);
al_translate_transform(&t, W/2, H/2);
al_use_transform(&t);
al_draw_prim(v, NULL, 0, POINTS, ALLEGRO_PRIM_TRIANGLE_FAN);
al_flip_display();
/* GP2X Wiz is locked to 60FPS using OpenGL */
frames++;
if (frames > 400)
break;
}
al_uninstall_system();
return 0;
}
void fd_flush_cache(FAST_DRAW_CACHE* cache)
{
assert(cache);
if(cache->size == 0)
return;
if(cache->use_indices)
al_draw_indexed_prim(cache->vertices, 0, cache->bitmap, cache->indices, 6 * cache->size, ALLEGRO_PRIM_TRIANGLE_LIST);
else
al_draw_prim(cache->vertices, 0, cache->bitmap, 0, 6 * cache->size, ALLEGRO_PRIM_TRIANGLE_LIST);
cache->bitmap = 0;
cache->size = 0;
}
void AIMap::drawObstacle(AIGameClient_Obstacle obstacle) {
/*
float v[obstacle.vertex.size()*2];
for(int i = 0; i < obstacle.vertex.size(); i++) {
v[2*i] = obstacle.vertex[i].first;
v[2*i+1] = obstacle.vertex[i].second;
}
al_draw_filled_polygon(v, obstacle.vertex.size(), al_map_rgb(50, 50, 50));
*/
ALLEGRO_VERTEX v[obstacle.vertex.size()];
for(int i = 0; i < obstacle.vertex.size(); i++) {
ALLEGRO_VERTEX tmp = {obstacle.vertex[i].first, obstacle.vertex[i].second, 0, 0, 0, al_map_rgb(0,0,0)};
v[i] = tmp;
}
al_draw_prim(v, NULL, 0, 0, obstacle.vertex.size(), ALLEGRO_PRIM_LINE_LOOP);
};
void draw_textured_colored_rectangle_3d(
float x, float y, float z, float w, float h, float d, float up, float vp,
ALLEGRO_BITMAP * texture, ALLEGRO_COLOR color) {
float u, v;
float tw, th;
ALLEGRO_VERTEX p[4];
if (texture) {
tw = al_get_bitmap_width(texture);
th = al_get_bitmap_height(texture);
u = tw * up;
v = th * vp;
} else {
u = v = 0.0f;
}
init_vertex_color(p+0, x , y , z , 0, 0, color);
init_vertex_color(p+1, x , y + h , z + d, 0, v, color);
init_vertex_color(p+2, x + w, y , z + d, u, 0, color);
init_vertex_color(p+3, x + w, y + h , z + d, u, v, color);
al_draw_prim(p, NULL, texture, 0, 4, ALLEGRO_PRIM_TRIANGLE_STRIP);
}
static void CustomVertexFormatPrimitives(int mode)
{
static CUSTOM_VERTEX vtx[4];
static ALLEGRO_VERTEX_DECL* decl;
if (mode == INIT) {
int ii = 0;
ALLEGRO_VERTEX_ELEMENT elems[] = {
{ALLEGRO_PRIM_POSITION, ALLEGRO_PRIM_SHORT_2, offsetof(CUSTOM_VERTEX, x)},
{ALLEGRO_PRIM_TEX_COORD_PIXEL, ALLEGRO_PRIM_SHORT_2, offsetof(CUSTOM_VERTEX, u)},
{ALLEGRO_PRIM_COLOR_ATTR, 0, offsetof(CUSTOM_VERTEX, color)},
{0, 0, 0}
};
decl = al_create_vertex_decl(elems, sizeof(CUSTOM_VERTEX));
for (ii = 0; ii < 4; ii++) {
float x, y;
x = 200 * cosf((float)ii / 4.0f * 2 * ALLEGRO_PI);
y = 200 * sinf((float)ii / 4.0f * 2 * ALLEGRO_PI);
vtx[ii].x = x; vtx[ii].y = y;
vtx[ii].u = 64 * x / 100; vtx[ii].v = 64 * y / 100;
vtx[ii].color = al_map_rgba_f(1, 1, 1, 1);
}
} else if (mode == LOGIC) {
Theta += Speed;
al_build_transform(&MainTrans, ScreenW / 2, ScreenH / 2, 1, 1, Theta);
} else if (mode == DRAW) {
if (Blend)
al_set_blender(ALLEGRO_ADD, ALLEGRO_ONE, ALLEGRO_ONE);
else
al_set_blender(ALLEGRO_ADD, ALLEGRO_ONE, ALLEGRO_ZERO);
al_use_transform(&MainTrans);
al_draw_prim(vtx, decl, Texture, 0, 4, ALLEGRO_PRIM_TRIANGLE_FAN);
al_use_transform(&Identity);
}
}
/* emulate polygon() for convex polygons only */
void polygon(int vertices, const int *points, ALLEGRO_COLOR color)
{
ALLEGRO_VERTEX vtxs[MAX_POLYGON_VERTICES + 2];
ALLEGRO_PRIM_COLOR pc;
int i;
assert(vertices <= MAX_POLYGON_VERTICES);
pc = al_get_prim_color(color);
vtxs[0].x = 0.0;
vtxs[0].y = 0.0;
vtxs[0].z = 0.0;
vtxs[0].color = pc;
vtxs[0].u = 0;
vtxs[0].v = 0;
for (i = 0; i < vertices; i++) {
vtxs[0].x += points[i*2];
vtxs[0].y += points[i*2 + 1];
}
vtxs[0].x /= vertices;
vtxs[0].y /= vertices;
for (i = 1; i <= vertices; i++) {
vtxs[i].x = points[0];
vtxs[i].y = points[1];
vtxs[i].z = 0.0;
vtxs[i].color = pc;
vtxs[i].u = 0;
vtxs[i].v = 0;
points += 2;
}
vtxs[vertices + 1] = vtxs[1];
al_draw_prim(vtxs, NULL, NULL, 0, vertices + 2, ALLEGRO_PRIM_TRIANGLE_FAN);
}
static duk_ret_t
js_GradientRectangle(duk_context* ctx)
{
int x1 = duk_require_int(ctx, 0);
int y1 = duk_require_int(ctx, 1);
int x2 = x1 + duk_require_int(ctx, 2);
int y2 = y1 + duk_require_int(ctx, 3);
color_t color_ul = duk_require_sphere_color(ctx, 4);
color_t color_ur = duk_require_sphere_color(ctx, 5);
color_t color_lr = duk_require_sphere_color(ctx, 6);
color_t color_ll = duk_require_sphere_color(ctx, 7);
if (!is_skipped_frame()) {
ALLEGRO_VERTEX verts[] = {
{ x1, y1, 0, 0, 0, nativecolor(color_ul) },
{ x2, y1, 0, 0, 0, nativecolor(color_ur) },
{ x1, y2, 0, 0, 0, nativecolor(color_ll) },
{ x2, y2, 0, 0, 0, nativecolor(color_lr) }
};
al_draw_prim(verts, NULL, NULL, 0, 4, ALLEGRO_PRIM_TRIANGLE_STRIP);
}
return 0;
}
// Render function.
// (this used to be set in io.RenderDrawListsFn and called by ImGui::Render(), but you can now call this directly from your main loop)
void ImGui_ImplAllegro5_RenderDrawData(ImDrawData* draw_data)
{
// Backup Allegro state that will be modified
ALLEGRO_TRANSFORM last_transform = *al_get_current_transform();
ALLEGRO_TRANSFORM last_projection_transform = *al_get_current_projection_transform();
int last_clip_x, last_clip_y, last_clip_w, last_clip_h;
al_get_clipping_rectangle(&last_clip_x, &last_clip_y, &last_clip_w, &last_clip_h);
int last_blender_op, last_blender_src, last_blender_dst;
al_get_blender(&last_blender_op, &last_blender_src, &last_blender_dst);
// Setup render state
al_set_blender(ALLEGRO_ADD, ALLEGRO_ALPHA, ALLEGRO_INVERSE_ALPHA);
// Setup orthographic projection matrix
// Our visible imgui space lies from draw_data->DisplayPos (top left) to draw_data->DisplayPos+data_data->DisplaySize (bottom right).
{
float L = draw_data->DisplayPos.x;
float R = draw_data->DisplayPos.x + draw_data->DisplaySize.x;
float T = draw_data->DisplayPos.y;
float B = draw_data->DisplayPos.y + draw_data->DisplaySize.y;
ALLEGRO_TRANSFORM transform;
al_identity_transform(&transform);
al_use_transform(&transform);
al_orthographic_transform(&transform, L, T, 1.0f, R, B, -1.0f);
al_use_projection_transform(&transform);
}
for (int n = 0; n < draw_data->CmdListsCount; n++)
{
const ImDrawList* cmd_list = draw_data->CmdLists[n];
// Allegro's implementation of al_draw_indexed_prim() for DX9 is completely broken. Unindex our buffers ourselves.
// FIXME-OPT: Unfortunately Allegro doesn't support 32-bits packed colors so we have to convert them to 4 float as well..
static ImVector<ImDrawVertAllegro> vertices;
vertices.resize(cmd_list->IdxBuffer.Size);
for (int i = 0; i < cmd_list->IdxBuffer.Size; i++)
{
const ImDrawVert* src_v = &cmd_list->VtxBuffer[cmd_list->IdxBuffer[i]];
ImDrawVertAllegro* dst_v = &vertices[i];
dst_v->pos = src_v->pos;
dst_v->uv = src_v->uv;
unsigned char* c = (unsigned char*)&src_v->col;
dst_v->col = al_map_rgba(c[0], c[1], c[2], c[3]);
}
const int* indices = NULL;
if (sizeof(ImDrawIdx) == 2)
{
// FIXME-OPT: Unfortunately Allegro doesn't support 16-bit indices.. You can '#define ImDrawIdx int' in imconfig.h to request Dear ImGui to output 32-bit indices.
// Otherwise, we convert them from 16-bit to 32-bit at runtime here, which works perfectly but is a little wasteful.
static ImVector<int> indices_converted;
indices_converted.resize(cmd_list->IdxBuffer.Size);
for (int i = 0; i < cmd_list->IdxBuffer.Size; ++i)
indices_converted[i] = (int)cmd_list->IdxBuffer.Data[i];
indices = indices_converted.Data;
}
else if (sizeof(ImDrawIdx) == 4)
{
indices = (const int*)cmd_list->IdxBuffer.Data;
}
// Render command lists
int idx_offset = 0;
ImVec2 clip_off = draw_data->DisplayPos;
for (int cmd_i = 0; cmd_i < cmd_list->CmdBuffer.Size; cmd_i++)
{
const ImDrawCmd* pcmd = &cmd_list->CmdBuffer[cmd_i];
if (pcmd->UserCallback)
{
pcmd->UserCallback(cmd_list, pcmd);
}
else
{
ALLEGRO_BITMAP* texture = (ALLEGRO_BITMAP*)pcmd->TextureId;
al_set_clipping_rectangle(pcmd->ClipRect.x - clip_off.x, pcmd->ClipRect.y - clip_off.y, pcmd->ClipRect.z - pcmd->ClipRect.x, pcmd->ClipRect.w - pcmd->ClipRect.y);
al_draw_prim(&vertices[0], g_VertexDecl, texture, idx_offset, idx_offset + pcmd->ElemCount, ALLEGRO_PRIM_TRIANGLE_LIST);
}
idx_offset += pcmd->ElemCount;
}
}
// Restore modified Allegro state
al_set_blender(last_blender_op, last_blender_src, last_blender_dst);
al_set_clipping_rectangle(last_clip_x, last_clip_y, last_clip_w, last_clip_h);
al_use_transform(&last_transform);
al_use_projection_transform(&last_projection_transform);
}
void stamod_draw(struct Stamod * me) {
int stop = me->tsize * 3;
al_draw_prim(me->triangles, NULL, me->texture, 0, stop, ALLEGRO_PRIM_TRIANGLE_LIST);
}
int main(void) {
ALLEGRO_VERTEX v[8];
ALLEGRO_DISPLAY * display;
ALLEGRO_TRANSFORM perst;
ALLEGRO_TRANSFORM camt;
ALLEGRO_BITMAP * texture, * texture2;
ALLEGRO_EVENT_QUEUE * queue;
ALLEGRO_EVENT event;
ALLEGRO_FONT * font;
int busy = 1;
float cx = 0;
float cy = -2; // 128;
float cz = 0;
int face = 0;
int hori = 0;
float angle = 0;
float theta = 0;
float near = 2;
float far = 8192;
float zoom = 1;
float scale = 1.0;
float us = 20;
float ratio = 480.0 / 640.0;
al_init();
al_init_image_addon();
al_init_font_addon();
al_install_keyboard();
font = al_create_builtin_font();
queue = al_create_event_queue();
al_set_new_display_option(ALLEGRO_DEPTH_SIZE, 16, ALLEGRO_SUGGEST);
display = al_create_display(640, 480);
al_register_event_source(queue, al_get_keyboard_event_source());
texture = al_load_bitmap("tile_1.png");
texture2 = al_load_bitmap("tile_2.png");
/* Allegro coordinates: +Y is down, +X is to the right,
* and +Z comes "out of" the screen.
*
*/
while (busy) {
init_vertex(v+0, 0, 0, 0, 0, 0, 1, 0, 0, 1);
init_vertex(v+1, 0, 0, us, 0, 256, 0, 1, 0, 1);
init_vertex(v+2, us, 0, us, 256, 256, 0, 0, 1, 1);
init_vertex(v+3, us, 0, 0, 256, 0, 1, 1, 0, 1);
init_vertex(v+4, us, -us, 0, 256, 256, 1, 0, 1, 1);
init_vertex(v+5, 0, -us, 0, 256, 0, 0, 1, 1, 1);
init_vertex(v+6, 0, -us, us, 256, 256, 0, 0, 0, 1);
init_vertex(v+7, 0, 0, us, 0, 256, 1, 1, 1, 1);
al_identity_transform(&camt);
al_scale_transform_3d(&camt, scale, scale, scale);
al_translate_transform_3d(&camt, cx, cy, cz);
angle = face * 0.125 * ALLEGRO_PI;
al_rotate_transform_3d(&camt, 0, -1, 0, angle);
theta = hori * 0.125 * ALLEGRO_PI;
al_rotate_transform_3d(&camt, -1, 0, 0, theta);
al_use_transform(&camt);
// al_set_projection_transform(display, &perst);
al_clear_to_color(al_map_rgb_f(0.75, 0.75, 0.95));
al_set_render_state(ALLEGRO_DEPTH_TEST, 1);
al_clear_depth_buffer(far);
al_identity_transform(&perst);
al_perspective_transform(&perst, -1, ratio, near,
1, -ratio, far);
al_use_projection_transform(&perst);
al_draw_filled_rectangle(0, 0, 4, 5, al_map_rgb_f(0, 0.25, 0.25));
al_draw_prim(v, NULL, texture, 0, 8, ALLEGRO_PRIM_TRIANGLE_FAN);
draw_textured_colored_rectangle_3d(0 , -us, 0, us, us, 0,
1.0, 1.0, texture2, al_map_rgb_f(1,1,1));
draw_textured_colored_rectangle_3d(0 , -us, 0, 0, us, us,
1.0, 1.0, texture2, al_map_rgb_f(1,1,1));
draw_textured_colored_rectangle_3d(0 , 0, 0, us, 0, us,
1.0, 1.0, texture2, al_map_rgb_f(1,1,1));
al_identity_transform(&perst);
al_orthographic_transform(&perst, 0, 0, -1.0, 640, 480, 1.0);
al_identity_transform(&camt);
al_use_projection_transform(&perst);
al_use_transform(&camt);
al_draw_filled_rectangle(111, 22, 133, 44, al_map_rgb_f(0.25, 0.25, 0));
al_draw_multiline_textf(font, al_map_rgb_f(1,1,1), 10, 10, 620, 0, 0,
"Coords: (%f %f %f)\nAngle: (%f %f)\nView: [%f %f %f %f]\nScale: %f",
cx, cy, cz, angle, theta, near, far, zoom, scale);
al_flip_display();
al_wait_for_event(queue, &event);
if (event.type == ALLEGRO_EVENT_KEY_DOWN) {
switch (event.keyboard.keycode) {
case ALLEGRO_KEY_RIGHT:
cx += 8;
break;
case ALLEGRO_KEY_LEFT:
cx -= 8;
break;
case ALLEGRO_KEY_UP:
cy += 8;
break;
case ALLEGRO_KEY_DOWN:
cy -= 8;
break;
case ALLEGRO_KEY_HOME:
cz += 8;
break;
case ALLEGRO_KEY_END:
cz -= 8;
break;
case ALLEGRO_KEY_R:
face++;
break;
case ALLEGRO_KEY_L:
face--;
break;
case ALLEGRO_KEY_H:
hori++;
break;
case ALLEGRO_KEY_G:
hori--;
break;
case ALLEGRO_KEY_N:
near *= 2.0;
break;
case ALLEGRO_KEY_M:
near /= 2.0;
break;
case ALLEGRO_KEY_F:
far += 64;
break;
case ALLEGRO_KEY_V:
far -= 64;
break;
case ALLEGRO_KEY_Z:
zoom *= 2.0f;
break;
case ALLEGRO_KEY_S:
zoom /= 2.0f;
break;
case ALLEGRO_KEY_A:
scale *= 2.0f;
break;
case ALLEGRO_KEY_Q:
scale /= 2.0f;
break;
case ALLEGRO_KEY_ESCAPE:
busy = 0 ;
break;
default:
break;
}
}
}
al_destroy_bitmap(texture);
al_destroy_bitmap(texture2);
return 0;
}
void m_draw_prim (const void* vtxs, const ALLEGRO_VERTEX_DECL* decl, MBITMAP* texture, int start, int end, int type)
{
if (type == ALLEGRO_PRIM_POINT_LIST) {
int n = end-start;
ALLEGRO_VERTEX *v = new ALLEGRO_VERTEX[n*6];
ALLEGRO_VERTEX *verts = (ALLEGRO_VERTEX *)vtxs;
for (int i = 0; i < n; i++) {
v[i*6+0].x = verts[i+start].x;
v[i*6+0].y = verts[i+start].y;
v[i*6+0].z = 0;
v[i*6+0].color = verts[i+start].color;
v[i*6+1].x = verts[i+start].x+1;
v[i*6+1].y = verts[i+start].y;
v[i*6+1].z = 0;
v[i*6+1].color = verts[i+start].color;
v[i*6+2].x = verts[i+start].x+1;
v[i*6+2].y = verts[i+start].y+1;
v[i*6+2].z = 0;
v[i*6+2].color = verts[i+start].color;
v[i*6+3].x = verts[i+start].x;
v[i*6+3].y = verts[i+start].y+1;
v[i*6+3].z = 0;
v[i*6+3].color = verts[i+start].color;
v[i*6+4].x = verts[i+start].x;
v[i*6+4].y = verts[i+start].y;
v[i*6+4].z = 0;
v[i*6+4].color = verts[i+start].color;
v[i*6+5].x = verts[i+start].x+1;
v[i*6+5].y = verts[i+start].y+1;
v[i*6+5].z = 0;
v[i*6+5].color = verts[i+start].color;
}
al_draw_prim(v, decl, (texture ? texture->bitmap : NULL), start, n*6, ALLEGRO_PRIM_TRIANGLE_LIST);
delete[] v;
}
else if (type == ALLEGRO_PRIM_LINE_LIST) {
int n = (end-start)/2;
ALLEGRO_VERTEX *v = new ALLEGRO_VERTEX[n*6];
ALLEGRO_VERTEX *verts = (ALLEGRO_VERTEX *)vtxs;
for (int i = 0; i < n; i++) {
float x1 = verts[(i*2+0)+start].x;
float y1 = verts[(i*2+0)+start].y;
float x2 = verts[(i*2+1)+start].x;
float y2 = verts[(i*2+1)+start].y;
float dx = x2 - x1;
float dy = y2 - y1;
float a = atan2(dy, dx);
float a1 = a + M_PI/2;
float a2 = a - M_PI/2;
float newx1 = x1 + cos(a1)/2;
float newy1 = y1 + sin(a1)/2;
float newx2 = x1 + cos(a2)/2;
float newy2 = y1 + sin(a2)/2;
float newx3 = x2 + cos(a1)/2;
float newy3 = y2 + sin(a1)/2;
float newx4 = x2 + cos(a2)/2;
float newy4 = y2 + sin(a2)/2;
float u1 = verts[(i*2+0)+start].u;
float v1 = verts[(i*2+0)+start].v;
float u2 = verts[(i*2+1)+start].u;
float v2 = verts[(i*2+1)+start].v;
v[i*6+0].x = newx1;
v[i*6+0].y = newy1;
v[i*6+0].z = 0;
v[i*6+0].u = u1;
v[i*6+0].v = v1;
v[i*6+0].color = verts[(i*2+0)+start].color;
v[i*6+1].x = newx3;
v[i*6+1].y = newy3;
v[i*6+1].z = 0;
v[i*6+1].color = verts[(i*2+0)+start].color;
v[i*6+1].u = u2;
v[i*6+1].v = v2;
v[i*6+2].x = newx4;
v[i*6+2].y = newy4;
v[i*6+2].z = 0;
v[i*6+2].color = verts[(i*2+0)+start].color;
v[i*6+2].u = u2;
v[i*6+2].v = v2;
v[i*6+3].x = newx1;
v[i*6+3].y = newy1;
v[i*6+3].z = 0;
v[i*6+3].color = verts[(i*2+0)+start].color;
v[i*6+3].u = u1;
v[i*6+3].v = v1;
v[i*6+4].x = newx2;
v[i*6+4].y = newy2;
v[i*6+4].z = 0;
v[i*6+4].color = verts[(i*2+0)+start].color;
v[i*6+4].u = u1;
v[i*6+4].v = v1;
v[i*6+5].x = newx4;
v[i*6+5].y = newy4;
v[i*6+5].z = 0;
v[i*6+5].color = verts[(i*2+0)+start].color;
v[i*6+5].u = u2;
v[i*6+5].v = v2;
}
al_draw_prim(v, decl, (texture ? texture->bitmap : NULL), start, n*6, ALLEGRO_PRIM_TRIANGLE_LIST);
delete[] v;
}
else
al_draw_prim(vtxs, decl, (texture ? texture->bitmap : NULL), start, end, type);
}
void RenderManager::RenderObject(const Shape& shape, bool filled, ALLEGRO_BITMAP* texture) {
//shape->Render(al_get_backbuffer(_display_context));
auto& verts = shape.GetVerticies();
std::vector<ALLEGRO_VERTEX> allegro_verts;
allegro_verts.reserve(verts.size());
for(const auto& v : verts) {
auto p = a2de::Math::ToScreenScale(v.GetPosition());
auto uv = v.GetUV();
auto c = v.GetColor();
allegro_verts.push_back(
std::move(ALLEGRO_VERTEX{
static_cast<float>(p.GetX()),
static_cast<float>(p.GetY()),
static_cast<float>(p.GetZ()),
static_cast<float>(uv.GetX()),
static_cast<float>(uv.GetY()),
c
}));
}
switch(shape.GetShapeType()) {
case Shape::ShapeType::Point: {
al_draw_prim(allegro_verts.data(), nullptr, texture, 0, allegro_verts.size(), ALLEGRO_PRIM_POINT_LIST);
break;
} case Shape::ShapeType::Line: {
al_draw_prim(allegro_verts.data(), nullptr, texture, 0, allegro_verts.size(), ALLEGRO_PRIM_LINE_LIST);
break;
} case Shape::ShapeType::Rectangle: {
filled ?
al_draw_prim(allegro_verts.data(), nullptr, texture, 0, allegro_verts.size(), ALLEGRO_PRIM_TRIANGLE_LIST)
:
al_draw_prim(allegro_verts.data(), nullptr, texture, 0, allegro_verts.size(), ALLEGRO_PRIM_LINE_LOOP);
break;
} case Shape::ShapeType::Circle: {
filled ?
al_draw_prim(allegro_verts.data(), nullptr, texture, 0, allegro_verts.size(), ALLEGRO_PRIM_TRIANGLE_FAN)
:
al_draw_prim(allegro_verts.data(), nullptr, texture, 0, allegro_verts.size(), ALLEGRO_PRIM_POINT_LIST);
break;
} case Shape::ShapeType::Ellipse: {
filled ?
al_draw_prim(allegro_verts.data(), nullptr, texture, 0, allegro_verts.size(), ALLEGRO_PRIM_TRIANGLE_FAN)
:
al_draw_prim(allegro_verts.data(), nullptr, texture, 0, allegro_verts.size(), ALLEGRO_PRIM_POINT_LIST);
break;
} case Shape::ShapeType::Triangle: {
filled ?
al_draw_prim(allegro_verts.data(), nullptr, texture, 0, allegro_verts.size(), ALLEGRO_PRIM_TRIANGLE_LIST)
:
al_draw_prim(allegro_verts.data(), nullptr, texture, 0, allegro_verts.size(), ALLEGRO_PRIM_LINE_LOOP);
break;
} case Shape::ShapeType::Arc: {
al_draw_prim(allegro_verts.data(), nullptr, texture, 0, allegro_verts.size(), ALLEGRO_PRIM_LINE_STRIP);
break;
} case Shape::ShapeType::Polygon: {
filled ?
al_draw_prim(allegro_verts.data(), nullptr, texture, 0, allegro_verts.size(), ALLEGRO_PRIM_TRIANGLE_FAN)
:
al_draw_prim(allegro_verts.data(), nullptr, texture, 0, allegro_verts.size(), ALLEGRO_PRIM_LINE_LOOP);
break;
} case Shape::ShapeType::Spline: {
al_draw_prim(allegro_verts.data(), nullptr, texture, 0, allegro_verts.size(), ALLEGRO_PRIM_LINE_STRIP);
break;
} case Shape::ShapeType::Sector: {
filled ?
al_draw_prim(allegro_verts.data(), nullptr, texture, 0, allegro_verts.size(), ALLEGRO_PRIM_TRIANGLE_FAN)
:
al_draw_prim(allegro_verts.data(), nullptr, texture, 0, allegro_verts.size(), ALLEGRO_PRIM_LINE_LOOP);
break;
} default: {
/* DO NOTHING: All cases handled */;
}
}
}
